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MM23772
User Manual
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Tyco Electronics MM23772 User Manual

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Operator’s Manual
MM23772
Rev. B, Apr/07
M/A-COM
P7200 Series
Portable Radios
MANUAL REVISION HISTORY
REV DATE REASON FOR REVISION
- Jan/06 Initial release. A Dec/06 Updated operation info. B Apr/07 Added EDACS/Conventional/P25 operation.
M/A-COM Technical Publications would particularly appreciate feedback on any errors found in this document and suggestions on how the document could be improved. Submit your comments and suggestions to:
Tyco Electronics Wireless Systems Segment
M/A-COM, Inc. Fax your comments to: 1-434-455-6851 Technical Publications or 221 Jefferson Ridge Parkway e-mail us at: techpubs@tycoelectronics.com Lynchburg, VA 24501
NOTICE!
The software contained in this device is copyrighted by M/A-COM, Inc. Unpublished rights are reserved under the copyright laws of the United States.
This device is made under license under one or more of the following U.S. Patents: 4,590,473; 4,636,791; 5,148,482; 5,185,796; 5,271,017; 5,377,229; 4,716,407; 4,972,460; 5,502,767; 5,146,497; 5,164,986; 5,185,795.
The voice coding technology embodied in this product is protected by intellectual property rights including patent rights, copyrights, and trade secrets of Digital Voice Systems, Inc. The user of this technology is explicitly prohibited from attempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Code into human-readable form.
NOTICE!
Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations, or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty.
OpenSky and EDACS are registered trademarks and ProScan, ProSound, and Failsoft are trademarks of M/A-COM, Inc.
All other product and brand names are trademarks, registered trademarks, or service marks of their respective holders.
This product conforms to the European Union WEEE Directive 2002/96/EC. Do not dispose of this product in a public landfill. Take it to a recycling center at the end of its life.
This manual is published by M/A-COM, Inc., without any warranty. Improvements and changes to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by M/A-COM, Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of M/A-COM, Inc.
Copyright© 2006-2007 M/A-COM, Inc. All rights reserved.
2
TABLE OF CONTENTS
Page
1 SAFETY CONVENTIONS ..................................................................................................................10
2 SAFETY TRAINING INFORMATION ............................................................................................11
2.1 RF EXPOSURE GUIDELINES.................................................................................................11
2.2 ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY...............................................12
3 OPERATING TIPS..............................................................................................................................13
3.1 EFFICIENT RADIO OPERATION...........................................................................................13
3.1.1 Antenna Care and Replacement.....................................................................................13
3.1.2 Electronic Devices.........................................................................................................13
3.1.3 Aircraft...........................................................................................................................14
3.1.4 Electric Blasting Caps ...................................................................................................14
3.1.5 Potentially Explosive Atmospheres...............................................................................14
4 BATTERIES .........................................................................................................................................15
4.1 CONDITIONING BATTERY PACKS......................................................................................15
4.1.1 Conditioning NiMH battery packs.................................................................................15
4.1.2 Conditioning NiCD Battery Packs................................................................................. 15
4.1.3 Additional Information..................................................................................................15
4.2 CHARGING BATTERY PACKS..............................................................................................16
4.2.1 Charging Guidelines......................................................................................................16
4.3 BATTERY PACK USAGE........................................................................................................16
4.3.1 Usage Guidelines...........................................................................................................16
4.4 CHANGING THE BATTERY PACK.......................................................................................17
4.4.1 Removing the Battery Pack...........................................................................................17
4.4.2 Attaching the Battery Pack............................................................................................17
4.5 BATTERY DISPOSAL..............................................................................................................18
5 INTRODUCTION ................................................................................................................................19
5.1 WATER RESISTANCE.............................................................................................................21
5.2 UNIVERSAL DEVICE CONNECTOR (UDC).........................................................................21
6 OPTIONS AND ACCESSORIES .......................................................................................................22
7 OPENSKY OPERATION ....................................................................................................................24
7.1 POWER ON/OFF AND VOLUME CONTROL........................................................................24
7.1.1 Power ON/OFF..............................................................................................................24
7.1.2 Volume Control.............................................................................................................24
7.2 CONTROLS...............................................................................................................................24
7.2.1 Buttons and Knobs.........................................................................................................25
7.2.2 Keypad (P7250 and P7270 Only)..................................................................................26
7.3 DISPLAY ...................................................................................................................................27
7.4 RADIO STATUS ICONS...........................................................................................................27
7.5 TRI-COLOR LED......................................................................................................................28
7.6 LOG IN TO THE NETWORK...................................................................................................28
7.7 LOG OFF THE NETWORK......................................................................................................29
7.8 PERSONALITY.........................................................................................................................29
7.8.1 Profiles...........................................................................................................................29
7.8.2 Talk Groups...................................................................................................................29
7.9 OPENSKY DISPLAY OVERVIEW..........................................................................................30
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TABLE OF CONTENTS
7.9.1 Display’s Top Line........................................................................................................30
7.9.2 Display’s Second Line...................................................................................................30
7.9.3 Dwell Display................................................................................................................ 30
7.10 ALERT TONES..........................................................................................................................31
7.11 BASIC MENU STRUCTURE....................................................................................................32
7.12 KEYPAD FUNCTION COMMANDS (P7270 ONLY).............................................................34
7.13 CHANGING THE ACTIVE PROFILE .....................................................................................34
7.14 CHANGING THE SELECTED TALK GROUP.......................................................................34
7.15 ADJUSTING DISPLAY & BUTTON BACKLIGHT BRIGHTNESS......................................34
7.16 STEALTH MODE ......................................................................................................................35
7.16.1 Enabling Stealth Mode ..................................................................................................35
7.16.2 Disabling Stealth Mode .................................................................................................35
7.17 ADJUSTING SIDE TONE AUDIO LEVEL .............................................................................35
7.18 CHANGE OPERATING MODE ...............................................................................................36
7.19 RECEIVING AND TRANSMITTING VOICE CALLS ...........................................................36
7.19.1 Receiving a Voice Call..................................................................................................36
7.19.2 Transmitting a Voice Call..............................................................................................36
7.20 ADJUSTING AUDIO TREBLE LEVEL...................................................................................36
7.21 TALK GROUP LOCK OUT......................................................................................................36
7.21.1 Lock Out a Talk Group..................................................................................................37
7.21.2 Unlock a Talk Group.....................................................................................................37
7.22 SCANNING................................................................................................................................38
7.22.1 Selecting Scan Modes....................................................................................................38
7.22.2 Checking or Changing Active Scan Mode ....................................................................39
7.22.3 Scanning Priority...........................................................................................................39
7.23 MAKING SELECTIVE CALLS................................................................................................39
7.23.1 Manually Dialing a Selective Call (P7270 Only)..........................................................40
7.23.2 Selective Call Using Speed Dial....................................................................................40
7.23.3 Accepting a Selective Call.............................................................................................41
7.23.4 Rejecting a Selective Call..............................................................................................41
7.23.5 Terminating a Selective Call .........................................................................................41
7.24 SELECTIVE ALERTS...............................................................................................................41
7.24.1 Defining Messages.........................................................................................................41
7.24.2 Sending a Message ........................................................................................................42
7.24.3 Receiving a Message .....................................................................................................43
7.24.4 Deleting a Selective Alert Message:..............................................................................43
7.25 MAKING INTERCONNECT CALLS (P7270 ONLY).............................................................43
7.26 EMERGENCY COMMUNICATIONS .....................................................................................43
7.26.1 Declaring an Emergency Call or Alert ..........................................................................44
7.26.2 Receiving an Emergency Call .......................................................................................44
7.26.3 Dismissing an Emergency .............................................................................................45
7.26.4 Clearing an Emergency Call or Alert ............................................................................45
7.27 OPENSKY ENCRYPTION........................................................................................................45
7.27.1 Automatic Encryption....................................................................................................46
7.27.2 Manual Encryption (P7270 Only) .................................................................................46
7.28 DYNAMIC REGROUPING ......................................................................................................47
7.29 GPS COORDINATES................................................................................................................47
Page
4
TABLE OF CONTENTS
Page
8 EDACS OPERATION..........................................................................................................................48
8.1 TURNING ON THE RADIO.....................................................................................................48
8.2 CONTROLS...............................................................................................................................48
8.2.1 Buttons and Knobs.........................................................................................................49
8.2.2 Keypad (P7250 “Scan” and P7270 “System” Models Only) ........................................50
8.3 DISPLAY ...................................................................................................................................52
8.4 RADIO STATUS ICONS...........................................................................................................53
8.5 TRI-COLOR LED......................................................................................................................54
8.6 STATUS MESSAGES ...............................................................................................................54
8.7 ERROR MESSAGES.................................................................................................................55
8.8 ALERT TONES .........................................................................................................................55
8.9 SYSTEM SELECTION..............................................................................................................56
8.10 GROUP/CHANNEL SELECTION............................................................................................56
8.11 MODIFY SCAN LIST ...............................................................................................................57
8.11.1 System Model................................................................................................................ 57
8.11.2 Scan Model....................................................................................................................57
8.12 NUISANCE DELETE (SYSTEM MODEL) .............................................................................58
8.13 BACKLIGHT ON/OFF..............................................................................................................58
8.14 CONTRAST ADJUST ...............................................................................................................58
8.15 DECLARING AN EMERGENCY.............................................................................................58
8.16 LOCKING/UNLOCKING KEYPAD ........................................................................................58
8.17 HIGH/LOW POWER ADJUSTMENT......................................................................................59
8.17.1 Using the Menu Button..................................................................................................59
8.17.2 Using the Pre-Programmed Option Button....................................................................59
8.18 MENU ........................................................................................................................................59
8.18.1 Menu Item Selection Process.........................................................................................60
8.19 DIGITAL VOICE OPERATION ...............................................................................................62
8.19.1 Clear Mode....................................................................................................................62
8.19.2 Digital Mode..................................................................................................................62
8.19.3 Private Mode..................................................................................................................62
8.19.4 Private Operation...........................................................................................................63
8.20 SCANNING TRUNKED GROUPS...........................................................................................64
8.20.1 Turning Scan On and Off ..............................................................................................64
8.20.2 Adding Groups to a Scan List........................................................................................65
8.20.3 Deleting Groups from a Scan List.................................................................................66
8.20.4 Nuisance Delete.............................................................................................................66
8.21 SCANNING TRUNKED SYSTEMS.........................................................................................67
8.21.1 Wide Area System Scanning.........................................................................................67
8.21.2 Priority System Scan .....................................................................................................67
8.21.3 ProScan..........................................................................................................................67
8.22 EMERGENCY OPERATION....................................................................................................68
8.22.1 Receiving an Emergency Call .......................................................................................68
8.22.2 Declaring an Emergency Call........................................................................................68
8.23 INDIVIDUAL CALLS...............................................................................................................68
8.23.1 Receiving and Responding to an Individual Call ..........................................................68
8.23.2 Sending an Individual Call............................................................................................70
8.23.3 Call Storage Lists...........................................................................................................70
5
TABLE OF CONTENTS
8.24 TELEPHONE INTERCONNECT CALLS................................................................................71
8.24.1 Receiving a Telephone Interconnect Call......................................................................71
8.24.2 Sending a Telephone Interconnect Call.........................................................................71
8.24.3 Dual-Tone Multi-Frequency: Overdial/Conventional Mode.........................................72
8.25 PROGRAMMABLE ENTRIES.................................................................................................73
8.25.1 Pre-Storing Individual and Telephone Interconnect Calls from the Keypad.................73
8.26 STATUS/MESSAGE OPERATION..........................................................................................73
8.26.1 Status Operation ............................................................................................................73
8.26.2 Message Operation ........................................................................................................74
8.27 DYNAMIC REGROUP OPERATION......................................................................................74
8.27.1 Emergency Operation....................................................................................................74
8.28 MACRO KEY OPERATION.....................................................................................................74
8.29 PORTABLE DATA....................................................................................................................74
8.29.1 Displays.........................................................................................................................75
8.29.2 DATA OFF Operation...................................................................................................75
8.29.3 DATA ON Operation ....................................................................................................75
8.29.4 Exiting Data Calls..........................................................................................................75
8.29.5 Scan Lockout Mode.......................................................................................................76
8.29.6 Data Lockout Mode.......................................................................................................76
Page
9 PROJECT 25 (P25) CONVENTIONAL OPERATION ...................................................................77
9.1 TURNING ON THE RADIO.....................................................................................................77
9.2 CONTROLS...............................................................................................................................77
9.2.1 Buttons and Knobs.........................................................................................................78
9.2.2 Keypad (P7250 “Scan” and P7270 “System” Models Only).........................................79
9.3 DISPLAY ...................................................................................................................................81
9.3.1 Radio Status Icons .........................................................................................................82
9.4 TRI-COLOR LED......................................................................................................................83
9.5 STATUS MESSAGES ...............................................................................................................83
9.5.1 Error Messages ..............................................................................................................84
9.6 ALERT TONES..........................................................................................................................84
9.7 SYSTEM SELECTION..............................................................................................................84
9.8 GROUP/CHANNEL SELECTION............................................................................................85
9.9 MODIFY SCAN LIST ...............................................................................................................85
9.9.1 P7270 System Model.....................................................................................................85
9.9.2 P7250 Scan Model.........................................................................................................86
9.10 NUISANCE DELETE (SYSTEM MODEL) .............................................................................86
9.11 BACKLIGHT ON/OFF..............................................................................................................86
9.12 CONTRAST ADJUST ...............................................................................................................86
9.13 DECLARING AN EMERGENCY.............................................................................................87
9.14 LOCKING/UNLOCKING KEYPAD ........................................................................................87
9.15 HIGH/LOW POWER ADJUSTMENT......................................................................................87
9.15.1 Using the Menu Button..................................................................................................87
9.15.2 Using the Pre-Programmed Option Button....................................................................87
9.16 MENU ........................................................................................................................................87
9.16.1 Menu Item Selection Process.........................................................................................88
9.17 DIGITAL VOICE OPERATION ...............................................................................................90
9.17.1 Clear Mode ....................................................................................................................90
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TABLE OF CONTENTS
Page
9.17.2 Digital Mode..................................................................................................................90
9.17.3 Private Mode..................................................................................................................91
9.17.4 Private Operation...........................................................................................................92
9.18 GROUP CALLS IN P25 MODE................................................................................................93
9.18.1 Transmitting a Group Call.............................................................................................93
9.18.2 Receiving a Group Call .................................................................................................93
9.19 INDIVIDUAL CALLS IN P25 MODE......................................................................................93
9.19.1 Transmitting an Individual Call.....................................................................................93
9.19.2 Receiving an Individual Call.........................................................................................93
9.20 EMERGENCY GROUP CALLS IN P25 MODE......................................................................94
9.20.1 Declaring an Emergency Group Call.............................................................................94
9.20.2 Receiving an Emergency Group Call ............................................................................ 94
10 CONVENTIONAL OPERATION......................................................................................................95
10.1 CONTROLS...............................................................................................................................95
10.1.1 Buttons and Knobs.........................................................................................................96
10.1.2 Keypad (P7250 “Scan” and P7270 “System” Models Only) ........................................97
10.2 DISPLAY ...................................................................................................................................99
10.2.1 Radio Status Icons.......................................................................................................100
10.3 TRI-COLOR LED....................................................................................................................100
10.4 STATUS MESSAGES .............................................................................................................101
10.4.1 Error Messages ............................................................................................................101
10.5 ALERT TONES .......................................................................................................................101
10.6 TURNING ON THE RADIO...................................................................................................102
10.7 SYSTEM SELECTION............................................................................................................102
10.8 GROUP/CHANNEL SELECTION..........................................................................................103
10.9 MODIFY SCAN LIST .............................................................................................................103
10.9.1 System Model.............................................................................................................. 103
10.9.2 Scan Model..................................................................................................................103
10.10 NUISANCE DELETE (SYSTEM MODEL) ...........................................................................104
10.11 BACKLIGHT ON/OFF............................................................................................................104
10.12 CONTRAST ADJUST .............................................................................................................104
10.13 DECLARING AN EMERGENCY...........................................................................................104
10.14 LOCKING/UNLOCKING KEYPAD ......................................................................................104
10.15 HIGH/LOW POWER ADJUSTMENT....................................................................................105
10.15.1 Using the Menu Button................................................................................................ 105
10.15.2 Using the Pre-Programmed Option Button..................................................................105
10.16 MENU ......................................................................................................................................105
10.16.1 Menu Item Selection Process.......................................................................................106
10.17 DIGITAL VOICE OPERATION .............................................................................................108
10.17.1 Clear Mode..................................................................................................................108
10.17.2 Digital Mode................................................................................................................108
10.17.3 Private Mode................................................................................................................109
10.17.4 Private Operation.........................................................................................................110
10.18 RECEIVING A CALL .............................................................................................................111
10.19 SENDING A CALL .................................................................................................................111
11 TECHNICAL ASSISTANCE............................................................................................................112
11.1 IMMERSIBLE P7200 ..............................................................................................................112
7
TABLE OF CONTENTS
12 BASIC TROUBLESHOOTING........................................................................................................113
FIGURES
Page
Figure 4-1: Removing the Battery Pack.........................................................................................................
Figure 4-2: Attaching the Battery Pack..........................................................................................................17
Figure 5-1: P7230 “Select” Model Radio ......................................................................................................20
Figure 5-2: P7250 “Scan” Model...................................................................................................................20
Figure 5-3: P7270 “System” Model...............................................................................................................21
Figure 7-1: Top and Side View ...................................................................................................................... 24
Figure 7-2: Blank Radio Display...................................................................................................................27
Figure 7-4: Tri-Color LED.............................................................................................................................28
Figure 7-5: Personality Structure Example....................................................................................................29
Figure 8-1: Top and Side View ...................................................................................................................... 48
Figure 8-2: P7250 “Scan” Radio Front Panel................................................................................................50
Figure 8-3: P7270 “System” Radio Front Panel............................................................................................51
Figure 8-4: Radio Display..............................................................................................................................52
Figure 8-6: Tri-Color LED.............................................................................................................................54
Figure 8-7: Menu Display..............................................................................................................................59
Figure 8-8: Backlight Menu Display..............................................................................................................60
Figure 8-9: System Encryption Key Display.................................................................................................63
Figure 8-10: Group/Channel Encryption Key Display ..................................................................................63
Figure 8-11: Calls Received Lists..................................................................................................................69
Figure 8-12: WHC Individual Call Display...................................................................................................69
Figure 8-13: Calls Received and Personality Lists ........................................................................................71
Figure 9-1: Top and Side View ...................................................................................................................... 77
Figure 9-2: P7250 “Scan” Radio Front Panel................................................................................................79
Figure 9-3: P7270 “System” Radio Front Panel............................................................................................80
Figure 9-4: Radio Display..............................................................................................................................81
Figure 9-6: Tri-Color LED.............................................................................................................................83
Figure 9-7: Menu Display..............................................................................................................................88
Figure 9-8: Backlight Menu Display..............................................................................................................88
Figure 9-9: System Encryption Key Display.................................................................................................91
Figure 9-10: Group/Channel Encryption Key Display ..................................................................................91
Figure 10-1: Top and Side View....................................................................................................................95
Figure 10-2: P7250 “Scan” Radio Front Panel.................................................................................... ..........97
Figure 10-3: P7270 “System” Radio Front Panel..........................................................................................98
Figure 10-4: Radio Display............................................................................................................................99
Figure 10-6: Tri-Color LED.........................................................................................................................100
Figure 10-7: Menu Display..........................................................................................................................105
Figure 10-8: Backlight Menu Display..........................................................................................................106
Figure 10-9: System Encryption Key Display..................................................................................... ........109
Figure 10-10: Group/Channel Encryption Key Display ..............................................................................109
17
TABLES
Table 2-1: RF Exposure Compliance Testing Distances ...............................................................................
Table 6-1: Options and Accessories...............................................................................................................22
Table 7-1: Keypad Functions.........................................................................................................................26
8
12
TABLE OF CONTENTS
Page
Table 7-2: Status Icons Descriptions .............................................................................................................27
Table 7-3: Alert Tones...................................................................................................................................31
Table 7-4: Basic P7200 OpenSky Menu Structure........................................................................................32
Table 7-5: Keypad Function Commands .......................................................................................................34
Table 7-6: Scan Modes ..................................................................................................................................38
Table 7-7: Status of Selective Alert Messages...............................................................................................42
Table 7-8: Emergency Calls vs. Emergency Alerts.......................................................................................44
Table 8-1: Display Descriptions ....................................................................................................................53
Table 8-2: Alert Tones...................................................................................................................................55
Table 8-3: Menu Item Information ................................................................................................................60
Table 8-4: Information Display......................................................................................................................61
Table 8-5: Transmit/Receive Mode Compatibility for Digital Voice Operation...........................................64
Table 9-1: Display Descriptions ....................................................................................................................82
Table 9-2: Alert Tones...................................................................................................................................84
Table 9-3: Menu Item Information ................................................................................................................89
Table 9-4: Information Display......................................................................................................................90
Table 9-5: Transmit/Receive Mode Compatibility for Digital Voice Operation...........................................92
Table 10-1: Display Descriptions ................................................................................................................100
Table 10-2: Alert Tones...............................................................................................................................101
Table 10-3: Menu Item Information ............................................................................................................107
Table 10-4: Information Display..................................................................................................................108
Table 10-5: Transmit/Receive Mode Compatibility for Digital Voice Operation.......................................110
Table 12-1: Troubleshooting........................................................................................................................113
9

1 SAFETY CONVENTIONS

The following conventions are used throughout this manual to alert the user to general safety precautions that must be observed during all phases of operation, service, and repair of this product. Failure to comply with these precautions or with specific warning elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product. M/A-COM, Inc. assumes no liability for the customer’s failure to comply with these standards.
The WARNING symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING symbol until the conditions identified are fully understood or met.
The CAUTION symbol calls attention to an operating procedure, practice, or the like, which, if not performed correctly or adhered to, could result in damage to the equipment
CAUTION
or severely degrade the equipment performance.
The NOTE symbol calls attention to supplemental information, which may improve system performance or clarify a process or procedure.
The ESD symbol calls attention to procedures, practices, or the like, which could expose equipment to the effects of Electro-Static Discharge. Proper precautions must be taken to prevent ESD when handling circuit modules.
10

2 SAFETY TRAINING INFORMATION

The M/A-COM P7200 portable radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only,” meaning it must be used only during the course of employment by individuals aware of the hazards and the ways to minimize such hazards. This radio is NOT intended for use by the “General Population” in an uncontrolled environment.
The P7200 portable radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only.” In addition, this M/A-COM radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans:
• FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for
Human Exposure to Radio Frequency Electromagnetic Fields.
• American National Standards Institute (C95.1 – 1992), IEEE Standard for Safety Levels with Respect
to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.
• American National Standards Institute (C95.3 – 1992), IEEE Recommended Practice for the
Measurement of Potentially Hazardous Electromagnetic Fields – RF and Microwave.

2.1 RF EXPOSURE GUIDELINES

To ensure that exposure to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines:
CAUTION
• DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may
also cause the FCC RF exposure limits to be exceeded. A proper antenna is the antenna supplied with this radio by M/A-COM or an antenna specifically authorized by M/A-COM for use with this radio. (Refer to
• DO NOT transmit for more than 50% of total radio use time (“50% duty cycle”). Transmitting more
than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. The radio is transmitting when the “TX” indicator appears in the display. The radio will transmit by pressing the “PTT” (Push-To-Talk) button.
• Always transmit using low power when possible. In addition to conserving battery charge, low power
can reduce RF exposure.
• ALWAYS use M/A-COM authorized accessories (antennas, batteries, belt clips, speaker/mics, etc).
Use of unauthorized accessories may cause the FCC Occupational/Controlled Exposure RF compliance requirements to be exceeded. (Refer to
Table 6-1.)
Table 6-1.)
• As noted in Table 2-1, ALWAYS keep the device and its antenna AT LEAST 1.1 cm (0.43 inches)
from the body and at least 2.5 cm (1.00 inch) from the face when transmitting to ensure FCC RF exposure compliance requirements are not exceeded. However, to provide the best sound quality to
11
the recipients of your transmission, M/A-COM recommends you hold the microphone at least 5 cm (2 inches) from mouth, and slightly off to one side.
Table 2-1: RF Exposure Compliance Testing Distances
TESTED DISTANCES
RADIO FREQUENCY
Body Face
700/800 MHz 1.1 cm 2.5 cm
The information in this section provides the information needed to make the user aware of RF exposure, and what to do to assure that this radio operates within the FCC RF exposure limits of this radio.
(worst case scenario)

2.2 ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

During transmissions, this M/A-COM radio generates RF energy that can possibly cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites.
12

3 OPERATING TIPS

Antenna location and condition are important when operating a portable radio. Operating the radio in low lying areas or terrain, under power lines or bridges, inside of a vehicle or in a metal framed building can severely reduce the range of the unit. Mountains can also reduce the range of the unit.
In areas where transmission or reception is poor, some improvement may be obtained by ensuring that the antenna is vertical. Moving a few yards in another direction or moving to a higher elevation may also improve communications. Vehicular operation can be aided with the use of an externally mounted antenna.
Battery condition is another important factor in the trouble free operation of a portable radio. Always properly charge the batteries.

3.1 EFFICIENT RADIO OPERATION

For optimum audio clarity at the receiving radio(s), hold the portable radio approximately two inches from your mouth and speak into the microphone at a normal voice level.
Keep the antenna in a vertical position when receiving or transmitting a message. Do not hold the antenna when receiving a message and, especially, do not hold when transmitting a
message.
Do NOT hold onto the antenna when the radio is powered on!

3.1.1 Antenna Care and Replacement

Do not use the portable radio with a damaged or missing antenna. A minor burn may result if a damaged antenna comes into contact with the skin. Replace a damaged antenna immediately. Operating a portable radio with the antenna missing could cause personal injury, damage the radio, and may violate FCC regulations.
Use only the supplied or approved antenna. Unauthorized antennas, modifications or attachments could cause damage to the radio unit and may violate FCC regulations. (Refer to Table 6-1.)

3.1.2 Electronic Devices

RF energy from portable radios may affect some electronic equipment. Most modern electronic equipment in cars, hospitals, homes, etc. is shielded from RF energy. However, in areas in which you are instructed to turn off two-way radio equipment, always observe
CAUTION
the rules. If in doubt, turn it off!
13

3.1.3 Aircraft

3.1.4 Electric Blasting Caps

3.1.5 Potentially Explosive Atmospheres

Always turn off a portable radio before boarding any aircraft! Use it on the ground only with crew permission. DO NOT use while in-flight!!
To prevent accidental detonation of electric blasting caps, DO NOT use two-way radios within 1000 feet of blasting operations. Always obey the "Turn Off Two-Way Radios" signs posted where electric blasting caps are being used. (OSHA Standard:
1926.900)
Areas with potentially explosive atmospheres are often, but not always, clearly marked. These may be fuelling areas, such as gas stations, fuel or chemical transfer or storage facilities, and areas where the air contains chemicals or particles, such as grain, dust, or metal powders.
Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death.
Turn OFF two-way radios when in any area with a potentially explosive atmosphere. It is rare, but not impossible that a radio or its accessories could generate sparks.
14

4 BATTERIES

The P7200 series portable radios use rechargeable, recyclable Nickel Cadmium (NiCd) or Nickel Metal Hydride (NiMH) batteries. Please follow the directions below to maximize the useful life of each type of battery.
If the battery is ruptured or is leaking electrolyte that results in skin or eye contact with the electrolyte, immediately flush the affected area with water. If the battery electrolyte gets in the eyes, flush with water for 15 minutes and consult a physician immediately.

4.1 CONDITIONING BATTERY PACKS

4.1.1 Conditioning NiMH battery packs

Condition a new NiMH battery before putting into use. This also applies to rechargeable NiMH batteries that have been stored for long periods (weeks, months, or longer). Conditioning requires fully charging and fully discharging the battery three (3) times using a “battery analyzer/conditioner/charger.” M/A­COM recommends either the Cadex
five®
iQ
battery conditioners, purchased directly from M/A-COM. These units condition a battery pack by
automatically charging and discharging (cycling) the battery.
®
C7400 or the Intelligent Technologies Co. BC3506QP-5 iTECH®
Failure to properly condition NiMH battery packs before initial use will result in shortened performance by the battery.
CAUTION

4.1.2 Conditioning NiCD Battery Packs

A new NiCD battery does not require conditioning before use. Periodically condition NiCD batteries to avoid the memory effect. If a NiCD battery is repeatedly charged and not fully discharged, the result is lower voltage and lower capacity. Fortunately, both voltage and capacity are restored through battery conditioning.
Always use M/A-COM authorized chargers and conditioners. Use of unauthorized chargers and conditioners may void the warranty.
CAUTION

4.1.3 Additional Information

For more information regarding the proper care of portable radio batteries or establishing a battery maintenance program, refer to ECR-7367 which may be ordered by calling toll free 1-800-368-3277, then select option 7.
15

4.2 CHARGING BATTERY PACKS

Battery chargers are available from M/A-COM with nominal charge times of one hour. Combinations include single and multi-position, rapid charge units.
M/A-COM chargers are rapid chargers specifically designed for charging nickel-based battery packs. The chargers differentiate between NiCd or NiMH battery packs and automatically adjust charging rates. Refer to the appropriate charger manual for specific operating instructions.

4.2.1 Charging Guidelines

Observe the following guidelines when charging a battery pack:
• Avoid high temperature during charging.
• Discontinue use if the charger is overheating.
• Only charge NiCd or NiMH battery packs using a rapid charger approved for use by M/A-COM.
• Do not leave batteries in the charger indefinitely. For best results leave the battery in the charger for
two to six hours after the Green Ready LED comes on. Then place the battery pack into service and fully discharge (as indicated by the radio low battery warning) before re-charging.
If any faults are encountered while charging the battery pack, consult the charger’s manual to determine the cause and possible corrective action.

4.3 BATTERY PACK USAGE

NiCd and NiMH batteries vary in capacity and life cycle. NiCd batteries have a longer life cycle than NiMH batteries whereas NiMH batteries have a larger capacity. Both types of batteries require following basic usage guidelines in order to increase the battery runtime or shift life.

4.3.1 Usage Guidelines

The following guidelines will help increase the battery runtime or shift life:
• Ensure the battery pack is fully discharged (as indicated by the radio low battery warning) before re-
charging.
• Periodically condition battery packs, frequency to be determined based on usage patterns (refer to
ECR-7367). If the battery is fully discharged (to radio Low Battery warning) during routine use, the frequency of conditioning may be extended.
Do not leave NiCd or NiMH batteries in a charger for more than a few days.
16

4.4 CHANGING THE BATTERY PACK

4.4.1 Removing the Battery Pack

Make sure the power to the radio is turned OFF.
Although the P7200 has been designed to tolerate changing the battery pack without turning power off, M/A-COM, Inc. recommends turning the radio off before changing
CAUTION
1. Press the latch at the bottom of the battery pack.
2. Lift the battery pack from the bottom.
3. Remove the battery pack from the radio.
battery packs to ensure safety and best operation.
Figure 4-1: Removing the Battery Pack

4.4.2 Attaching the Battery Pack

Make sure the power to the radio is turned OFF.
1. Align the tab on the top of the battery pack with the slot at the top of the battery cavity.
2. Push the battery pack down to attach the battery to the radio.
3. Verify that the battery pack is properly latched to the radio.
Figure 4-2: Attaching the Battery Pack
17

4.5 BATTERY DISPOSAL

In no instance should a battery be incinerated. Disposing of a battery by burning will cause an explosion.
CAUTION
RECHARGEABLE BATTERY PACK DISPOSAL – The product you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for recycling options or proper disposal. Canadian and U.S. users may call Toll Free 1-800-8-BATTERY® for information and/or procedures for returning rechargeable batteries in your locality.
18

5 INTRODUCTION

The P7200 series radios are dual-band multi-mode portable radios. The P7200 series radio is available without a front mounted keypad (P7230 Select model ­keypad (P7250 Scan model ­Figure 5-3). The dual-band (700/800 MHz) P7200 portable radio delivers end-to-end encrypted digital voice and IP data communications. It is designed to support multiple operating modes including:
• OpenSky
• EDACS
®
Trunked mode (OTP)
®
or ProVoice™ Trunked mode
• P25 Trunked mode
• P25 Digital Conventional mode
• Conventional Analog mode
The P7200 portables can include all of these modes or just one. Additional modes of operation can be added with software updates.
The P7200 supports a full range of advanced digital trunking features, including voice group calls, priority scanning, emergency calls, late call entry, and dynamic reconfiguration. It performs autonomous roaming for wide area applications. High quality voice coding and robust audio components assure speech clarity.
Figure 5-2) and with a DTMF front mounted keypad (P7270 System model -
Figure 5-1), with a 6-buttoned front mounted
In the trunked modes, the user selects a communications “operating” system (i.e., OpenSky, EDACS, ProVoice, or P25) and group. While communicating in a trunked mode, channel selection is transparent to the user and is controlled via digital communication with the system controller (e.g. base station in an OpenSky system or a CSD in an EDACS system). This provides advanced programmable features and fast access to communication channels.
In Conventional Analog mode, the user selects a channel and communicates directly on that channel. In this mode, a system refers to a set of channels. A channel is a transmit/receive radio frequency pair.
The exact operation of the radio will depend on the operating mode, the radio’s programming, and the particular radio system. Most features described in this manual can be enabled through programming. Consult your System Administrator for the particular features programmed into your P7200.
For further detail about features and operation refer to the appropriate maintenance manual or contact your System Administrator.
19
Figure 5-1: P7230 “Select” Model Radio
20
Figure 5-2: P7250 “Scan” Model
Figure 5-3: P7270 “System” Model

5.1 WATER RESISTANCE

The P7200 series portable radios operate reliably even under adverse conditions. These radios meet MIL­STD-810F specifications for driven rain, humidity, and salt fog.

5.2 UNIVERSAL DEVICE CONNECTOR (UDC)

The Universal Device Connector (UDC) provides connections for external accessories such as a headset or a speaker-microphone and for programming cables. The UDC is located on the right side of the radio (opposite the PTT Button). The UDC facilitates programming and testing the radio. The UDC pins perform different functions depending on the accessory attached to the UDC (refer to the appropriate maintenance manual for more detailed information).
21

6 OPTIONS AND ACCESSORIES

Table 6-1 lists the Options and Accessories tested for use with the P7200 series portable radios. Refer to the maintenance manual or to M/A-COM’s Products and Services Catalog for a complete list of
options and accessories, including those items that do not adversely affect the RF energy exposure.
Always use M/A-COM authorized accessories (antennas, batteries, belt clips, speaker/mics, etc). Use of unauthorized accessories may cause the FCC Occupational/Controlled Exposure RF compliance requirements to be exceeded. (Refer to Table 6-1.)
Always use the correct options and accessories (battery, antenna, speaker/mic, etc.) for the radio. Immersion rated options must be used with an immersion rated radio. Intrinsically
CAUTION
safe options must be used with intrinsically safe radios. (Refer to Table 6-1.)
Table 6-1: Options and Accessories
DESCRIPTION PART NUMBER
ANTENNAS
Flexible Gain Antenna (700/800 MHz) KRE 101 1506/1 Whip Antenna (700/800MHz) KRE 101 1506/2
BATTERIES (IMMERSION-RATED)
7.5V Nickel Cadmium (NiCd) Battery BKB 191 210/33
7.5V Nickel Metal Hydride (NiMH) Battery BKB 191 210/34
7.5V NiCd Battery BKB 191 210/35
7.5V NiMH Battery BKB 191 210/36
BATTERIES (WIND DRIVEN RAIN)
7.5V NiCd Battery BKB 191 210/43
7.5V NiMH Battery BKB 191 210/44
MISCELLANEOUS ACCESSORIES
Speaker Mic KRY 101 1617/183 Speaker Mic Antenna Version Plus KRY 101 1617/184 Speaker Mic, Charger Compatible KRY 101 1617/185 Speaker Mic, Ant. Version, Charger Comp. KRY 101 1617/186 Speaker Mic, Immersible KRY 101 1617/283 Speaker Mic, Ant. Version, Immersible KRY 101 1617/284 Speaker Mic, Ant. Version, Immersible, Charger Comp. KRY 101 1617/287 Speaker Mic, Ruggedized KRY 101 1617/383 Speaker Mic, Antenna Version, Ruggedized KRY 101 1617/384 Speaker Mic, Ruggedized, Charger Comp. MC-011617-385 Speaker Mic, Ant. Version, Ruggedized, Charger Comp KRY 101 1617/387 Metal Belt Clip KRY 101 1647/1
22
DESCRIPTION PART NUMBER
Belt Loop with Swivel KRY 101 1609/1 Swivel (part of KRY 101 1639 and 1648) KRY 101 1608/2 Leather Case (Belt Loop type) KRY 101 1638/1 Leather Case Kit (with Leather Case P/N: KRY 101 1639/1) KRY 101 1639/2 Leather Case Kit, including:
Leather Case: KRY 101 1639/3 Swivel Mount: KRY 101 1608/2 Elastic Retaining Strap: CC102546V1 Shoulder Strap: CC103333V1
Nylon Case (Black) with Swivel & Belt Loop KRY 101 1648/1 Nylon T-Strap KRY 101 1656/1 Nylon Case (Orange) with Belt Loop KRY 101 1649/1 Swivel Mount Clip KRY 101 1608/3 Speaker Mic, Industrial OT-V2-10121 Speaker Mic, Industrial PLUS OT-V2-10122 Earpiece Kit <IS> for use with Speaker Mic Antenna Version OT-V1-10234 Ultra-Lite Headset with Inline PTT OT-V4-10314 Lightweight Headset with Single Speaker OT-V4-10315 Over-the-Head Headset OT-V4-10316 Behind-the-Head Headset OT-V4-10317 Ranger Headset OT-V4-10421 Skull Microphone OT-V4-10428 Behind-the-Head Headset OT-V4-10450 Earphone Kit, Black OT-V1-10520 Earphone Kit, Beige OT-V1-10521 Earphone Kit, Black OT-V1-10522 Earphone Kit, Beige OT-V1-10523 3-Wire Mini-Lapel (Beige) OT-V1-10524 3-Wire Mini-Lapel (Black) OT-V1-10525 Throat Microphone OT-V4-10656
KRY 101 1639/4
23

7 OPENSKY OPERATION

Once an OpenSky system has been selected from the available systems on your P7200 series portable radio, the characteristics described in the following sections will govern operation.

7.1 POWER ON/OFF AND VOLUME CONTROL

7.1.1 Power ON/OFF

Rotate the Power ON/OFF/Volume Control knob clockwise to power the radio on and counter-clockwise to power the radio off.
The radio will begin the Startup/Log On/Provision/Self-Test sequence and register on the OpenSky network. This takes a few seconds. If coverage is available, the radio will display the active talk group and is ready to use.

7.1.2 Volume Control

Turn the Power ON OFF/Volume Control knob clockwise to increase the volume and counter-clockwise to decrease the volume.

7.2 CONTROLS

The P7200 portable radio features two rotary control knobs and an emergency button located on the top of the radio ( (
Figure 7-1). The front mounted keypad of the P7270 System model has 15 buttons (Figure 5-3) and the
P7250 Scan model has six buttons (
Figure 7-1). The Push-To-Talk (PTT) button and two option buttons are mounted on the side
Figure 5-2).
24
Figure 7-1: Top and Side View

7.2.1 Buttons and Knobs

The function of the button and knob controls will vary depending on the mode of operation. The primary functions of the button and knob controls when in the OpenSky mode of operation are listed in the following paragraphs.
POWER ON-OFF VOLUME KNOB
VOICE GROUP SELECTION KNOB
EMERGENCY BUTTON
PTT BUTTON
SIDE OPTION BUTTON 1
SIDE OPTION BUTTON 2
Applies power to the radio and adjusts audio volume. Rotating the control clockwise applies power to the radio. A single alert tone (if
enabled through programming) indicates the radio is operational. Rotating the control clockwise increases the volume level. While adjusting the
volume the display will momentarily indicate the volume level (i.e. VOL=31). The volume range is from a minimum programmed level of zero (displayed as MUTE in the display) up to 40, which is the loudest level.
Used to select voice groups when operating within an OpenSky system. This is a 16­position rotary knob.
A mechanical stop, which can limit the number of positions accessed, is shipped with the radio but must be installed. To install the mechanical stop, remove the channel knob, loosen the set screw on the channel knob metal base (using a 1.27mm hex wrench), and remove the channel knob metal base. Replace the 16 channel ring with the channel stop ring located at the desired channel. Re-install the channel knob metal base, tighten the set screw, and re-install the channel knob.
Press to declare an emergency. Press and hold for three seconds to clear emergency.
The Push-To-Talk button (Figure 7-1) must be pressed before voice transmission begins.
Scrolls UP or DOWN thru available items within a sub-menu (available talk groups, pre-programmed speed dial numbers, canned alert messages, etc.).
25

7.2.2 Keypad (P7250 and P7270 Only)

The keys on the keypad have special functions and are labeled using a symbol or abbreviated word describing its primary function. Numeric entry is a secondary function of the keys. Each key is described in the following subsections.
KEY FUNCTION
Table 7-1: Keypad Functions
Primary function: Acts much as an “enter” button to activate a selection. Secondary function: While in the “dwell display,” press repeatedly to scroll through
and view status display (on 2 channel.
nd
line) for current profile, caller, received talk group, and

(P7250 only)
(P7250 only)
(P7250 only)
    
(P7270 Only)

(P7270 Only)
Scrolls thru available menu items (see Table 7-4).
Currently undefined.
Currently undefined.
Currently undefined.
The alpha-numeric keys are used to place telephone interconnect and individual (unit­to-unit) calls. The keys operate like a normal telephone keypad.
Also used to enter passwords for logging into the OpenSky network (if not pre­configured for automatic registration at power-up).
* Initiates OpenSky functions (log in, log out, selective call, telephone interconnect call, etc.). See page clear an entry (something like backspace, but it clears everything and not only the last digit/character).
34 for additional information. It is also used as an escape or to
26

(P7270 Only)
# Used in conjunction with alpha-numeric keys for passwords and OpenSky functions. See page
34 for additional information.

7.3 DISPLAY

The P7200 display is made up of 3 lines. Lines 1 and 2 contain twelve alpha-numeric character blocks each. The 3
rd
line displays radio status icons. If programmed, the display backlighting will illuminate upon power up or when operating radio controls. See the operation sections of this manual for specific display characteristics.
Figure 7-2: Blank Radio Display

7.4 RADIO STATUS ICONS

Status Icons indicate the various operating characteristics of the radio. The icons show operating modes and conditions and appear on the third line of the d isplay (see
approximate level only, based on battery voltage.
Table 7-2: Status Icons Descriptions
Steady – Radio is data registered. Steady – Stealth mode is enabled (all tones and display backlight is disabled,
voice is still heard).
Table 7-2). The battery charge indicator illustrates
Steady – Battery charge indicator
Flashing – Low battery indicator
VTAC Connection Indicator – Indicates the client is connected to a VTAC
Steady – Indicates Selective Call mode
Steady – Indicates received signal strength.
27

7.5 TRI-COLOR LED

The Tri-Color LED changes color to indicate radio status and is visible from both the front and top of the radio (see they represent are:
Green: Receiving Red: Transmitting Orange: If the LED is flashing rapidly, the radio is receiving an emergency call. If the LED is
Figure 7-3). In OpenSky mode only two radio states are reflected by the LED and the status
flashing every ½ second, the selected talk group is in the emergency state (although not transmitting). If the selected talk group is in the emergency state, an asterisk will be displayed next to the talk group name.
Figure 7-3: Tri-Color LED

7.6 LOG IN TO THE NETWORK

Login occurs either automatically (auto registration) if the radio has a valid registration or, if enabled and authorized for encryption (Section
If encryption is enabled and authorized on the radio, the user will be prompted to “Pls Login” with the *1 login command, a User ID, and password.
1. Press *1 (Login command).
2. Enter the full 10-digit User ID.
3. Press the # key.
4. Enter the password.
• If the radio is configured for alpha-numeric passwords and the password has consecutive
duplicate numbers (“MES33” for example), enter # between so the radio will not
• If the radio is configured for numeric-only passwords, do not enter # between duplicated
numbers.
5. Press the # key twice. The User ID may be remembered from the previous log-in. (Refer to Section
regarding log-off commands.) The password will be established before the radio is put into operation. Contact the local OpenSky network administrator for more information.
7.27), requires the user to enter a User ID and password.
interpret the entry as a letter (“D” in this example).
the consecutive duplicate numbers
7.7 for further details
28
If necessary, contact radio system administration personnel for log-in assistance and/or radio-specific log-in instructions.

7.7 LOG OFF THE NETWORK

The *0## command de-registers the radio. Typically, this is automatically performed when powering down the radio. Using this method, the User ID is remembered by the radio so only the password is needed at next log-in. Manually log-off by pressing *0##.
If a user is logged in using encryption features, it is necessary to log-off when encryption is no longer required.

7.8 PERSONALITY

As illustrated in Figure 7-4, a personality defines the profiles and talk groups available to the user. It is the structuring of a collection of profiles and privileges established by the OpenSky network administrator to provide the user with a comprehensive set of profiles to communicate effectively with the necessary talk groups or individuals.
Personalities are stored on the network and downloaded over-the-air to the radio. This process is called “provisioning.” Provisioning occurs at radio power-up (if the personality is not already stored in the radio’s memory) and at user log-in. When changes are made to the personality, the radio is automatically re-provisioned. Each personality can contain up to sixteen (16) profiles and each profile can contain up to sixteen talk groups.

7.8.1 Profiles

As stated above, each profile can contain up to sixteen (16) talk groups. A profile also defines the radio’s emergency behavior. All transmissions are made on the selected talk group (displayed on the top line of the dwell display). The user can change the selected talk group to any of the other talk groups within the profile.
Profile 1 Profile 2 Profile 3
TG a TG b TG c
TG x TG y
TG z
TG d TG e
TG f
TG = Talk Group
Figure 7-4: Personality Structure Example
TG a TG d TG g
TG h
TG i

7.8.2 Talk Groups

A talk group represents a set of users that regularly need to communicate with one another. There can be any number of authorized users assigned to a talk group. Talk groups are established and organized by the OpenSky network administrator. An OpenSky talk group is similar to a channel within a conventional FM radio system.
29

7.9 OPENSKY DISPLAY OVERVIEW

The 12-character x 3-line display shows the radio status. The first two lines of the display are text lines that change in response to user interaction with the menu buttons. Status icons appear in the bottom line (line 3) of the display (see

7.9.1 Display’s Top Line

The display’s top line of text changes as the and buttons are pressed to scroll through the available menu options (see displayed. Other information, such as alert messages will scroll across the top line of the display.

7.9.2 Display’s Second Line

The second line will displays information such as active menu, login prompt, emergency status, and dwell display messages as described in the following section.

7.9.3 Dwell Display

When not engaged in menu selection, the first two lines of the display default to the user-defined display, known as the “dwell display.” The top line indicates the currently selected talk group. The second line will display the currently selected profile, caller ID/alias
Press the
button repeatedly to scroll through and view one of these second line options.
Table 7-2).
Table 7-4). When the dwell display is present, the selected talk group will be
1
, received talk group, and current channel name.
1
Alias is a logical ID name such as “J_Smith.” The name corresponds to a user ID such as 003-542-0001.
30

7.10 ALERT TONES

The P7200 radio also provides audible Alert Tones or “beeps” to indicate the various operating conditions (see
Table 7-3).
NAME TONE DESCRIPTION
Call Queued Call Denied
Grant (or Go-Ahead)
Call Removed
Low Battery
one low tone/two high tones Call queued for processing three short
single short beep
single long low-pitched tone
one low-pitched/one short mid-pitched
Table 7-3: Alert Tones
Radio is out of coverage area or requested talk group is active.
Sounded when resources become available for a call request placed in the queue (if enabled) upon channel access.
If the radio roams to another site while transmitting, then it will auto rekey and begin transmitting on that tower. It gives a second grant tone to let the user know they have roamed.
Notifies the user access to the channel has been lost (out of coverage area or pre-empted by higher-priority call)
Low battery
Selective Alert Received
Emergency Alert Tone
Emergency Cleared Tone
Selective Call Ring Tone
Roam Tone
four short tones
three (3) short beeps Sounds when an emergency alert is declared
one long low-pitched tone Sounds when an emergency is cleared
a ringing tone similar to a telephone
Two short tones, one high­pitched and one low-pitched
Only played once to indicate a selective alert has been receive
Ringing is repeated every four (4) seconds until the call is accepted or rejected by the radio being called or until the network drops the call if unanswered after one (1) minute
Sounds when the radio transitions from one radio base station site to another.
31

7.11 BASIC MENU STRUCTURE

Table 7-4 illustrates the basic P7200 OpenSky menu structure. Menu items will vary depending upon system programming, radio hardware, and optional configurations. All menus except the dwell display menu can be turned off by network administration personnel.
Table 7-4: Basic P7200 OpenSky Menu Structure
Menu Name
Engineering Display
(Menu may not be available
per programming.)
Silent Emergency
Operating Mode
(e.g., OTP, OCF)
GPS Fix
[e.g., GPS, GPS (Site), GPS
(Aged)]
User ID
IP Address
Station Identification
Stealth Mode
(display backlight is disabled)
Treble Level
Display Brightness
Side Tone Level
(Menu may not be available
per radio programming)
Radio Displays
(first and second lines)
To/From Dwell Display
registration, RF sync and
transceiver status codes
bit-error rates
and RSSI data
OFF/ON
“SilentEmerg”
available modes
“Mode Menu”
current latitude and longitude
(degrees:minutes:seconds)
“GPS”
User ID # of user currently logged
in
“User ID”
Radio’s IP address
“IP Address”
station’s call sign
“Station ID”
“OFF”
“StealthMenu”
 
“LOW”, “MEDIUM”, “MEDHIGH”,
“HIGH”
“Treble Menu”
“<< >>”
“Bright Menu”
“OFF”, “LOW”, “MED”, HIGH”
“Side Menu”
selected channel Selected Channel
“ChannelMenu”
See Next Page
Usage Notes
Displays radio system connection data. For engineering use.
or to toggle between OFF/ON. Press to enable.
Use
or to choose an available mode. Press and
Use confirm (Y/N) with
GPS latitude and longitude position of currently tuned-to base station [“GPS (Site)”] or V-TAC (“GPS”) scrolls across top line of the display. “GPS (Aged)” indicates VTAC coordinates haven’t been updated for more that 2 minutes.
User’s identification/name scrolls across top line of the display (if programmed).
Radio’s Internet Protocol (IP) address scrolls across top line of the display.
Station’s identification/name scrolls across top line of the display (if programmed).
Use
or to turn on. Press any button to turn it off.
Use
or to choose speaker treble level. Press to
return to dwell display.
Use or to brighten or dim backlighting. Press to return to dwell display.
Use or to choose si de tone level. Press to return to dwell display.
Displays the current channel. Press to return to dwell display.
or and again.
32
Menu Name
Scan Mode
(e.g. Normal, No Scan, Fixed)
Talk group
Lock Out
Priority 2
Talk group
Priority 1
Talk group
Alerts Received
Alert Destination
Speed Dial
Profile Selection
Talk group Selection
Emergency Dismiss
Dwell Display
Radio Displays
(first and second lines)
See Previous Page
current scan mode
“ScnModeMenu”
talk group “<”
“LockOutMenu”
current priority talk group
“Priority2”
current priority talk group
“Priority1”
time/sender’s name/
alias/message text
“AlertsRcvd”
or oldest message
current speed dial #
“AlertDest”
current speed dial #
“SpeedDial”
currently active profile
“ProfileMenu”
selected talk group
“TalkGrpMenu”
alert received
“EmgDismiss”
selected talk group (bottom line option)
Use and to scroll through menus.
Usage Notes
Use
or to turn scan on and off. Press to return to
dwell display.
or to choose a talk group for locking/unlocking.
Use Press
to toggle “<” on (locked out) and off.
Use
or to choose Priority 2 talk group. Press to
return to dwell display.
Use or to choose Priority 1 talk group. Press to return to dwell display.
“No alerts” or alert message text scrolls in display. Use or
to view all messages.
or to choose a speed-dial number. Press to go
Use to the “Alert Msg” menu. Use “canned messages.” Press
dwell display.
Use or to choose a speed-dial numb er and press PTT to place call.
Use or to choose an available profile. Press to return to dwell display.
or to choose a talk group in current profile. Press
Use
or to scroll through
to send message and return to
to return to dwell display.
Use or to choose emergency talk group. Press to toggle “<” on (dismiss) and off.
Press
to change bottom line option.
33

7.12 KEYPAD FUNCTION COMMANDS (P7270 ONLY)

To perform a command from the keypad, use on of the following keypad commands:
Table 7-5: Keypad Function Commands
Log-off command: *0## (logs the user off the system). See Section
*0
information.
Log-in command: *1<User ID> # <Password> ## (required for encryption). See Section
*1
for additional information.
SOI Mode: User is prompted with a channel to communicate with using the default profile.
*4
Exit SOI Mode with *4# Initiate Selective Alert command: *7<Target ID>#[Choose Message]#. See Section
*7
additional information. Exit SOI Mode with *4#.
Radio-to-Radio Call command: *8<Selective call number>#(PTT to dial).
*8
Public Switched Telephone Network (PSTN) Call command: *9 <telephone number>#(PTT
*9
to dial) See Section
Begin Manual Encryption command: *32<Pre-determined Encryption Key>#
*32
*33 End Manual Encryption command: *33 *61 *62 *60
1 – 16 digit encryption key for 128 bit encryption; 17 – 32 digit encryption key for 256 bit encryption. See Section
Initiate XCOV Mode: Extended coverage for individual users. Initiate XCOV-TG Mode: Extended coverage for talk groups. Exit XCOV or XCOV-TG Mode: Returns to the normal mode.
7.25 for additional information.
7.27 for additional information.

7.13 CHANGING THE ACTIVE PROFILE

7.7 for additional
7.3
7.24 for
The radio can store up to sixteen (16) standard profiles, one of which is the currently active profile. To change the currently active profile:
1. Press the
2. Use
3. Profile becomes active when selected for longer than 2 seconds, when the
menu is changed using the
or buttons until “ProfileMenu” is displayed.
or to scroll through the list of available profiles.
is pressed, or when the
or button. Press to activate the selected profile.

7.14 CHANGING THE SELECTED TALK GROUP

Each profile stored in the radio can have up to sixteen (16) talk groups. One talk group within the currently active profile is set as the “selected talk group.” To change the selected talk group, turn the Group Selection knob on top of the radio.

7.15 ADJUSTING DISPLAY & BUTTON BACKLIGHT BRIGHTNESS

1. Press the or buttons until “Bright Menu” is displayed.
2. Use
or to brighten or dim the display and button backlighting.
34

7.16 STEALTH MODE

For some users, it is important to be able to turn off the radio’s display lights and side tones, but not the radio traffic. For example, in covert operations, lights and sounds could inadvertently expose an otherwise unobservable radio user. For this purpose, the radio has a Stealth feature that disables the radio display light, indicator light and audible side tones.
When stealth mode is on, the radio continues to scan the programmed list of talk groups and the user can key-up on the selected talk group.

7.16.1 Enabling Stealth Mode

Press the or buttons to scroll through menus until “StealthMenu” appears in the display. To immediately activate Stealth Mode press the
Stealth Menu, and returns to the Dwell Display.
The display lights, indicator lights, and side tones are disabled. The stealth mode icon is displayed.

7.16.2 Disabling Stealth Mode

To re-enable all lighting, side tones and exit Stealth Mode, press any key other than PTT or Emergency. This returns to the Dwell Display.
or button once. This activates Stealth Mode, exits the
The display lights, indicator lights, and side tones are re-enabled. The stealth mode icon disappears.
With stealth mode on, pressing any radio button (other than the mic’s PTT button or the emergency button) on front panel will immediately turn stealth mode off. For
example, pressing the button on the front panel will turn stealth mode off.

7.17 ADJUSTING SIDE TONE AUDIO LEVEL

The radio sounds confirming tones called “side tones” when its buttons are pressed. Most users find this audible confirmation helpful when navigating the menus. Side tone audio level can be adjusted or turned completely off using the “Side Menu.”
For covert operations, it may be necessary to turn off side tones. For safety’s sake, turning off the radio during covert operations is not recommended.
If the radio is operating properly but side tones are not heard when the menu buttons are pressed, the side tones are probably turned off. To turn them back on, access the “Side Tone” menu and select a setting other than “off.”
Use the following procedure set side tone level:
1. Press the
2. Press
completely off, use the “Off” setting.
or buttons to cycle through the menu until “Side Menu” is displayed.
or to change to the desired level (Off, Low, Medium, and High). To turn side tones
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7.18 CHANGE OPERATING MODE

1. Press the or buttons to cycle through the menu until “Mode Menu” is displayed.
2. Press
3. Press
4. Press
or to select the desired operating mode. and use or to select Y or N. again to make selection and return to the dwell display

7.19 RECEIVING AND TRANSMITTING VOICE CALLS

As soon as the radio completes the initialization sequence and registers on the OpenSky network, the user will begin to hear calls from the talk groups in the active profile, if available.

7.19.1 Receiving a Voice Call

No action is required on the part of the user. The caller’s alias is only shown when the selected talk group matches the received talk group. Otherwise,
the name of the received talk group is displayed.

7.19.2 Transmitting a Voice Call

1. Select the desired talk group.
2. Depress and hold the PTT button, wait a couple of seconds. If programmed by the administrator, a
grant tone will be sounded.
3. Begin speaking into the microphone in a normal voice.
4. For maximum clarity, hold the radio approximately 2 inches from your mouth. Take care not to cover
up the microphone while speaking.
5. Release the PTT button to terminate an outgoing voice call.

7.20 ADJUSTING AUDIO TREBLE LEVEL

The tone of received signals can be adjusted using the radio’s “Treble Menu.”
1. Press the
2. Press
high, and high.
3. Press
or buttons to cycle through the menu until “Treble Menu” is displayed.
or to increase or decrease level. There are four levels available: low, medium, medium-
or wait a few seconds to return to the dwell display.

7.21 TALK GROUP LOCK OUT

There are two ways to focus voice communications by suppressing calls from talk groups in the active profile.
• No Scan. By changing the Scanning Mode to “No Scan” only the selected talk group is scanned.
• Lock Out. By locking out selected talk groups, background noise or chatter can be eliminated and
scanning resources can be focused on just those groups whose calls you wish to monitor.
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Lock out is a listening (receive) function and only blocks received calls on locked out talk groups. Lock out does not affect transmit capability. “No Scan” and “Lock Out” do not apply to recent emergency lock outs.
Only talk groups in the active profile can be locked out, since they are the only talk groups whose voice calls can be heard on the radio. Talk group lock out is a scan-related feature. With lock out, one or more talk groups in the active profile can be temporarily disabled from being scanned. Calls are not received on locked-out talk groups. Lock out settings are not retained between profile changes or when the radio is power cycled.
If the Scan Mode is “Fixed,” P1 and P2 groups CANNOT be locked out. See Section 7.22 for more information.
The default emergency and emergency-capable talk groups can be locked out if they are NOT in an emergency state. If a talk group is locked out and is subsequently changed to the currently selected talk group, it will automatically be unlocked by the radio so the user can hear calls on the talk group. The radio may be configured so all talk groups are automatically locked out by default. In this case, they must be manually unlocked, if desired.

7.21.1 Lock Out a Talk Group

1. Use the or buttons to scroll through the menu choices until “LockOutMenu” appears in the
display.
2. Use the
lock out appears in the display.
3. Press the
4. “<” appears next to the locked out talk group.
or keys to scroll through the list of talk groups, if any, until the user group you want to
key to select the lockable talk group.

7.21.2 Unlock a Talk Group

1. Use the or buttons to scroll through the menu choices until “LockOutMenu” appears in the
display.
2. Use the
unlock appears in the display.
3. Use the
or keys to scroll through the list of talk groups, if any, until the user group you want to
key to unlock the displayed talk group.
• Changing the active profile removes any lockouts you have made.
• Turning off the radio removes any lockouts you have made.
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7.22 SCANNING

7.22.1 Selecting Scan Modes

Three scanning modes are available for the radio, but only one can be active at any time. Changing the scanning mode changes the way the radio scans voice calls for all of the profiles in the radio personality, no matter which profile is or becomes active.
The choice of scanning mode broadens or narrows the span of communications with all the groups in profiles you listen to, but does not affect your interaction with those groups you talk with.
The scanning modes available for selection may be limited to a subset of the three scanning modes by the administrator.
Table 7-6: Scan Modes
SCAN
MODE
No Scan
Normal
Fixed
EXPLANATION
Eliminates distractions. Full communications (listen and talk) with the active talk group. No calls received from other talk groups.
This is the default setting.
The user can scan all talk groups in the active profile that are not locked out as long as there is demand on the site.
Priority (P1 and P2) groups are user selectable. Receive calls from more than one talk group, if available from the current site. Allows dragging of the selected talk group, P1, P2, and default emergency talk groups to the
site on which the radio is registered. (If other calls are available at the site, they also can be heard but they will not be actively dragged.)
The default emergency talk group, as well as any emergency-enabled talk groups, is only dragged if it is in emergency mode.
The priority groups are fixed to the selected profile’s pre-defined P1 and P2 groups (configured via the UAS). In this mode, P1 and P2 groups CANNOT be locked out.
The user can scan all talk groups in the active profile that are not locked out, as long as there is demand on the site.
Allows dragging of the P1, P2, and selected talk group to the site on which the radio is registered. If other calls are available at the site, they can also be heard, but they will not be actively dragged.
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The default emergency talk group, as well as any emergency-enabled talk groups, is only dragged if in emergency mode.
The scanning mode choice remains in effect until it is changed. Even if the radio is turned off, the current scanning mode selection is saved for the next use.

7.22.2 Checking or Changing Active Scan Mode

7.22.2.1 Setting the Scan Mode
1. Press the or buttons until “ScnModeMenu” appears in the display.
2. Use the
Fixed.
3. Press the
or keys to scroll through the list of modes until your choice appears: Normal, None, or
key to activate the scan mode selection and return to the dwell display.
7.22.2.2 Duration of Scanning Mode Selections
Scanning Mode selections survive power down. At startup, the radio defaults to the scanning mode of set during last use. The last selection made remains in effect until a new selection is made from the Scan Mode menu.

7.22.3 Scanning Priority

The following lists the scanning priority order (from highest to lowest):
• Selected talk group in emergency state.
• Default emergency group in emergency state.
• Selected talk group.
• Emergency capable group in emergency state
• Priority 1 talk group.
• Priority 2 talk group.
• Other (non-priority).
7.22.3.1 Changing Scan Priority
1. Press the or keys until “Priority1” or “Priority2” appears in the display (Priority1 group has
higher priority than the Priorty2 group).
2. Press the
3. Press the
Display.
or button until the desired talk group is displayed.
key to select and activate the selection. The radio automatically returns to the Dwell
• Changing the priority of a listen group does not change your talk group.
• You set priority for two talk groups, but only in the selected profile.
• The scanning priority settings are reset to the default values when the radio is turned
off.

7.23 MAKING SELECTIVE CALLS

Selective calling is the capability for two voice radio units to obtain and use an independent talk path for a private call. A properly equipped radio can initiate a selective call to any radio in the system that is also programmed for selective calls.
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In the OpenSky system, a radio can be configured to initiate selective calls through a pre-programmed list in memory called a speed dial list. Alternatively, a properly equipped radio can initiate a selective call to any radio in the system by entering the ten-digit User ID (similar to a telephone number) of the target radio. Some radios are configured to only receive (not initiate) selective calls.

7.23.1 Manually Dialing a Selective Call (P7270 Only)

1. Enter *8, the User ID number of the user being called, and the # key (no dashes or spaces). (This
feature must be enabled by the administrator.) *8<destination user id># A shortened User ID number can be dialed using the following guidelines:
Selective calls are terminated if an emergency is declared. The network limits selective calls to ten (10) minutes maximum.
If a Selective Call is attempted without registration, “No Priv” is displayed.
• If the radio being called is in the same region and agency – enter only the last four digits.
• If the radio being called is in the same region, but a different agency – enter the last seven digits.
• If the radio being called is in another region or if the area is unknown – enter all ten digits.
2. Press PTT (and release) to ring the other user.
The ring tone is sounded. If the other user accepts the call, the called user’s alias will appear in initiating caller’s display. The
two are now in a private call until one ends the call, the call is terminated due to an initiated emergency, or the maximum time limit of ten (10) minutes is reached.
If the called radio is busy, “BUSY” will appear in the second line of the display.

7.23.2 Selective Call Using Speed Dial

Speed dial numbers are defined and provisioned by the OpenSky network administrator and cannot be manually entered into the radio by the user. Contact the administrator if changes to the speed dial list are required.
1. Scroll through the Menu options using the or button until “Speed Dial” appears in the second
line of the display. Using the until the desired number appears in the display and press the PTT button.
or keys, scroll through the pre-programmed speed-dial numbers
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OR
2. Press and hold a key associated with a given number for more than three seconds. For example, press
and hold the Press the PTT button.
A ring tone is sounded.
to open the Speed Dial Menu and display the third number in the speed dial list.
If the other user accepts the call, the called user’s alias will appear in initiating caller’s display. The two are now in a private call until one ends the call, or the call is terminated due to an initiated emergency.
If the called radio is involved in another selective call, “BUSY” will appear on the second line of the display. “Unavailable” is displayed when the call has not been answered after a 1 minute timeout or when the other party is not registered on the network.

7.23.3 Accepting a Selective Call

1. The radio will ring (like a telephone), indicating you are receiving a Selective Call.
2. Press the
3. “CONNECT” will appear in the display, followed by “Lim 10 Min.” “SEL CALL” and the alias of
the caller appear in the display once the call is established.
to accept the incoming selective call.

7.23.4 Rejecting a Selective Call

When a Selective Call is being received (the radio is ringing), you can reject the call by pressing either of
or buttons, the button, or by turning the Voice Group Selector Control knob. The call will
the be rejected and “Reject” appears on the callers display.

7.23.5 Terminating a Selective Call

Terminate a Selective Call (call must be active) by pressing the , , , , #, or buttons, or by turning the Voice Group Selector Control knob. “HANGUP” will appear in the display followed by the active talk group.

7.24 SELECTIVE ALERTS

Selective alert messaging is an OTP feature that allows one of up to eight (8) pre-programmed (canned) text messages to be sent from one radio to another. The sender specifies a destination (receiving) radio, selects one of the pre-programmed text messages, and then transmits it to the destination radio. The message delivery system adds sender and time-of-day information and forwards the message to the destination (receiving) radio. The sending radio receives a brief message noting the status of the transmission.
Received messages are stored in the radio until deleted or until the radio is rebooted. Received messages do not survive a reboot.

7.24.1 Defining Messages

All selective alert messages are pre-defined. The messages are programmed and provisioned remotely by your OpenSky system administrator. The radio user cannot create selective alert message content. The entire selective alert message, including the abbreviation, can be up to 200 characters long.
When sending a selective alert message, the radio may display one of the following status messages (
Table 7-7).
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STATUS MESSAGE DEFINITION
Delivering Select Alert message transmit attempt Busy Too busy – Try again Dest Down Receiving radio not logged on – Not registered Not Reg Transmitting radio not logged on – Not registered Delivered Transmission complete Unreachable No response Partial Transmission interrupted

7.24.2 Sending a Message

The sending process has three steps. First select the destination radio’s User ID, then select the alert message, and finally send the message.
7.24.2.1 Selecting a Destination Using the Keypad (P7270 Only)
1. Using the keypad, enter *7.
Table 7-7: Status of Selective Alert Messages
At the “AlertDst” prompt, enter the full User ID of the unit to send the message. A shortened User ID number can be dialed using the following guidelines:
• If the radio being called is in the same region and agency – enter only the last four digits.
• If the radio being called is in the same region, but a different agency – enter the last seven digits.
• If the radio being called is in another region or if the area is unknown – enter all ten digits.
2. Press the # key to activate the selection.
3. Use the
the desired message is displayed.
4. Press the
5. Observe Status Messages (
and buttons or the and buttons to scroll through the available messages until
or # key to send the message.
Table 7-7) to ensure proper delivery
7.24.2.2 Selecting a Destination Using the Menu:
1. Using the or key, scroll through the menu until “AlertDst” (Alert Destination) appears.
2. Use the
and press the
3. Use the
or button to scroll through the list of User IDs until the desired destination is displayed
key.
or keys to scroll through the available messages until the desired message is displayed.
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4. Press the
5. Observe Status Messages (
key to send the message.
Table 7-7) to ensure proper delivery

7.24.3 Receiving a Message

When a selective alert message is received by a radio, a four-beep tone is heard. The tone is heard only once, but the message “NEWALRT” alternates with the talk group on the main display. Up to 8 received messages can be stored. If a ninth message is received, the first (oldest) message is automatically deleted to make room for the new message.
Received messages are displayed with the time and source information. To display a Selective Alert Message:
1. Using the
message is displayed and scrolls across the top line of the display.
2. The message includes the time, the User ID, and alias of the sender along with the message.
3. To view the next message, press the
or button, scroll through the menu items until “Alerts Rcvd” appears. The oldest
or button to go forward or backwards.

7.24.4 Deleting a Selective Alert Message:

1. Display the message.
2. Press the
3. At the “Delete? Y” prompt, press the
key and or to select Y or N.
key. The message will be deleted.
Received messages cannot be saved.

7.25 MAKING INTERCONNECT CALLS (P7270 ONLY)

1. Using the keypad, enter *9, followed by the telephone number being called, and the # key (no dashes
or spaces). *9<telephone number># Wait a couple of seconds and press and release the PTT button to initiate the call. An initial ring tone
will sound to indicate signal call initiation. Once the gateway picks up the call, the ring tone will change. Press and hold the PTT and talk normally then release the PTT to listen.
2. To hang up the call, press
, , , , #, or .

7.26 EMERGENCY COMMUNICATIONS

The P7200 portable radio is capable of sending an emergency alert and making emergency calls on the network. The OpenSky system handles emergency calls with the highest priority, allowing you or the people you serve to get needed help.
Emergency call and alert capability for a profile is configured by the system administrator.
The radio that initiates an emergency alert emits a signal of 3 distinct beeps that only goes to the dispatch console.
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EMERGENCY ALERT EMERGENCY CALL
Table 7-8: Emergency Calls vs. Emergency Alerts
An Emergency Alert message is sent to the dispatcher console. The dispatch console plays an emergency tone when it receives the message.
No emergency audio (voice) transmission (hot-mic) capability available (per programming by system administrator)
An Emergency Alert message is sent to the dispatcher console. All peers (radios and consoles) and the dispatch console play the emergency tone whenever an emergency call is detected. An emergency tone plays for each new emergency, or when a profile is changed, (assuming there is an emergency on one of the talk groups for the new profile).
If the orange LED is flashing rapidly, the radio is receiving an emergency call. If the LED is flashing every ½ second, the selected talk group is in the emergency state (although not transmitting). If the selected talk group is in the emergency state, an asterisk displays next to the talk group name.
In addition to the Emergency Alert signal, the microphone goes hot for a predetermined length of time to allow for emergency audio (voice) transmission. The radio declaring the emergency has channel access priority. Note that the User can also use the PTT after the pre-determined hot-mic audio transmission, or during to extend the initial hot-mic audio transmission.

7.26.1 Declaring an Emergency Call or Alert

1. Press the red emergency button on the radio to enter emergency mode.
The emergency behavior for the selected profile is configured by the network administrator. This determines whether pressing the Emergency button sends an Emergency Call or just an Emergency Alert. An Emergency Alert is always part of and sent with an Emergency Call.
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If the active profile of the unit initiating the emergency is configured to Emergency Alert, the three­beep emergency alert signal is sent only to the dispatcher console.
If the active profile of the unit initiating the emergency is configured to Emergency Call, the three­beep emergency alert signal is sent to the dispatcher console and to all other radios within the selected talk group. The default emergency talk group becomes the selected talk group. The display will alternate between the emergency talk group name and “EMERGENCY” to indicate that the emergency has been initiated.
2. The microphone is hot (open mic) for a programmed amount of time in order to send your voice out
on the emergency talk group.
All of the radios in the emergency talk group hear your call and see the emergency talk group displayed on their radio.

7.26.2 Receiving an Emergency Call

Initially, when receiving an emergency call, the radio sounds the emergency tone (three short high­pitched tones).
The radio will flash “EMERGENCY” and display the alias of the user that triggered the emergency or the alias of the talk group (if the incoming talk group is the selected talk group of the receiving radio).
With “No Scan,” only the emergency tone is heard, not the initial open mic transmission. To dismiss or ignore the emergency, refer to Section
7.26.3.

7.26.3 Dismissing an Emergency

The “Dismissing an Emergency” function allows you to “ignore” an emergency declared by another user.
An emergency is dismissed for a configurable amount of time (default = 5 minutes).
1. After receiving an emergency call, press the or button until you see “EmgDismiss.”
2. Press the
to toggle “<” on (dismiss) and off. This works in similar fashion to the lock out menu.
The emergency dismiss timer is cleared when the emergency is cleared.

7.26.4 Clearing an Emergency Call or Alert

1. When the emergency ends, press and hold the red emergency button for three to five seconds to clear
the emergency alert and call while on the active emergency talk group. The remove tone sounds when the emergency is cancelled.
2. The radio returns to your default selected talk group. The “EMERGENCY” display is removed from
the main screen.
An Emergency Alert can only be cleared by the dispatcher or the initiator. An Emergency Call can be cleared by the dispatcher, the initiator, or someone whose radio
has supervisory privileges.

7.27 OPENSKY ENCRYPTION

In the OpenSky network, both data and voice use a 128-bit or 256-bit key encryption standard published by the Federal Information Processing Service (FIPS), called Advanced Encryption Standard (AES). AES is approved by the U.S. Department of Commerce for encryption of classified materials.
When encryption is enabled on the network, data is encrypted from the MDIS to the Mobile End System (MES) (e.g., P7200 portable radio). This form of encryption provides airlink security.
Voice encryption is handled either automatically or manually. Automatic encryption is initiated through the Unified Administration Server (UAS) for a specific talk group and requires nothing from the user. Manual encryption is initiated by two or more radio users. Both methods of encryption are discussed in the following sections.
When a user transmits encrypted voice, any listening users with different encryption keys hear distorted voice and “No Access” appears in the radio display.
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7.27.1 Automatic Encryption

For automatic encryption, a system administrator will select the talk group to be encrypted at the interface to the UAS. Once the talk groups have been selected and identified as secure, credentials for key generation are generated automatically by the system and provisioned to authorized users. This process requires that authorized users login to the network and be authenticated. Encryption keys require no manual handling and are never sent “in the clear” over any network interface or airlink.
7.27.1.1 Using Automatic Encryption
1. Locate the talk group that has been encrypted at the system administrator level.
2. “Pls Login” appears in the display (unless the keypad was used to log in).
3. Login normally by entering your User ID and Password. If a user is engaged in a call on a talk group encrypted at the system administrator level, “SECURE” will
appear in the display if the user is logged into that talk group. If a secure call is in progress elsewhere and the user has not logged in, the main display will alternate
between no access “NO ACC” and the alias of the radio that is currently engaged in the secure call. The alias only shows if the active talk group matches the received talk group, otherwise only the talk group name is displayed.

7.27.2 Manual Encryption (P7270 Only)

Two or more users can manually encrypt a call, if enabled, without an established encrypted talk group. A pre-determined “key or code” is required. Note that while a user is engaged in an encrypted call, users within the talk group that are not encrypted can still make standard voice calls on that talk group. The encrypted user can hear the standard unencrypted calls, but cannot respond while still manually encrypted.
Manual key entry only affects the currently selected talk group. All available talk groups within the current profile may be independently encrypted. Encryption keys are lost if the profile is changed.
The key must be pre-determined by the users prior to making a manually encrypted call on a talk group and is entered into the radio using the keypad. For 128 bit encryption, this key is between 1 and 16 digits. For 256 bit encryption, this key is between 17 and 32 digits.
7.27.2.1 Using Manual Encryption
1. Press *32 on the keypad.
2. Enter the key (1 – 16 digits for 128 bit encryption; 17 – 32 digits for 256 bit encryption).
3. Press #.
4. To end manual encryption, press *33. If a user is engaged in a call on a talk group that has been manually encrypted at the radio level, “Secure”
will appear in the display.
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If a secure (encrypted) call is in progress, and the user has not entered the key, the display will alternate between no access “No Access” and the alias of the radio that is currently engaged in the secure call.
Once the user has terminated manual encryption “Unsecure” will appear in the display for a brief interval.

7.28 DYNAMIC REGROUPING

Dynamic regrouping requires that the network administrator determine which radio users should be formed into an impromptu talk group to respond to particular emergency conditions.
The administrator will edit the personalities of the affected radios to include an emergency profile and then page the affected radios to re-register with the network to receive their edited personalities.
In response, affected radios automatically re-register to receive their edited personalities. During re­registration, subscriber equipment will default to the emergency profile selected by the administrator.

7.29 GPS COORDINATES

The radio’s current latitude and longitude coordinates may be displayed using the “GPS” menu. The following procedure assumes a GPS antenna is connected to the radio and it is receiving adequate signals from GPS satellites:
1. Press
2. Press
or until the “GPS” menu appears in the display. Current GPS coordinate latitude and
longitude data continuously scrolls in the top line of the display in a degrees:minutes:seconds format.
or to change to another menu.
If the internal GPS receiver’s data is expired (30 minutes or more) or unavailable, the radio uses the serving base station’s coordinates [GPS (Site) is displayed]. The GPS Menu will also indicate if the data is aged (2 minutes or more) [GPS (Aged) is displayed]
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8 EDACS OPERATION

8.1 TURNING ON THE RADIO

1. Power ON the radio by rotating the POWER ON-OFF/VOLUME knob clockwise. A short alert
signal (if enabled through programming) indicates the radio is ready to use. Refer to location of the POWER ON-OFF/VOLUME KNOB.
2. The display shows the last selected system and group or a default system and group (depending on
programming).
3. Adjust the POWER ON-OFF/VOLUME knob to the desired volume level.
4. Select the desired system and group. The display indicates the current system and group names.
5. The radio is now ready to transmit and receive calls.
In the trunked environment, CC SCAN will be displayed if communication with the system's control channel cannot be established. This may occur if, for example, the radio is out of range of the trunking site. It may be necessary to move to another location or select another trunking system to re-establish the control channel link for trunked mode operations. CC SCAN is displayed on the group line until a control channel is accessed.
Figure 8-1 for

8.2 CONTROLS

The radio features two rotary control knobs and an emergency button mounted on the top of the radio (
Figure 8-1). Push-To-Talk and option buttons are mounted on the side (Figure 8-1). The front mounted keypad has no buttons on the P7230 Select model, six buttons on the P7250 Scan model, and 15 buttons on the P7270 System Radio.
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Figure 8-1: Top and Side View

8.2.1 Buttons and Knobs

This section describes the primary function of the button and knob controls. Other functions associated with these controls are detailed in later sections.
POWER ON-OFF VOLUME KNOB
CONTROL KNOB
EMERGENCY/ HOME BUTTON
PTT BUTTON
Applies power to and adjusts the receiver’s volume. Rotating the control clockwise applies power to the radio. A single alert tone (if enabled through programming) indicates the radio is operational.
Rotating the control clockwise increases the volume level. Minimum volume levels may be programmed into the radio to prevent missed calls due to a low volume setting. While adjusting the volume the display will momentarily indicate the volume level (i.e. VOL=31). The volume range is from a minimum programmed level of zero (displayed as OFF in the display) up to 31, which is the loudest level.
Selects systems or group/channels (depending on programming). This is a 16­position rotary knob.
Note: A mechanical stop, which can limit the positions accessed, is shipped with the radio but must be installed. To install the mechanical stop, remove the channel knob, loosen the set screw on the channel knob metal base (using a 1.27mm hex wrench), and remove the channel knob metal base. Replace the 16 channel ring with the channel stop ring located at the desired channel. Reinstall the channel knob metal base, tighten the set screw, and reinstall the channel knob.
Automatically selects the pre-programmed Group/System by pressing and holding for a programmed duration. It can also be used to declare an emergency by pressing and holding for a programmed duration. The button must be pre­programmed for either operation, but not both.
Push-To-Talk must be pressed before voice transmission begins. In trunked mode the radio’s ID is transmitted upon depression of the PTT button. Refer to 8-1 for the location of the PTT button.
Figure
SIDE OPTION BUTTON 2
SIDE OPTION BUTTON 1
Exits the current operation (removing all displays associated with it) and returns the radio to the selected talk group. Terminates individual and telephone interconnect calls.
Activates one of a number of programmable software options selected during PC programming. Programmable options include hi/low power settings, keypad lock, LCD contrast, LCD and keypad back lighting.
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8.2.2 Keypad (P7250 “Scan” and P7270 “System” Models Only)

The keys on the keypad have special functions and are labeled using a symbol or abbreviated word describing its primary function. Numeric entry is a secondary function of the keys. Each key is described in the following subsections.
KEY FUNCTION

Figure 8-2: P7250 “Scan” Radio Front Panel
Primary Function: Allows the user to scroll through available systems, groups, or channels, depending on personality programming.
Secondary Function
: Changes the selection for an item within a list.
Primary Function: Accesses the pre-stored menu.
  
Secondary Function to an “Enter” key.
Adds/Deletes selected groups or channels from the Scan list of the currently selected system.
Turns the Scan operation ON and OFF.
Activates one of a number of programmable software options.
: Activates a selected item within the menu. This is similar
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Figure 8-3: P7270 “System” Radio Front Panel
KEY FUNCTION
Primary Function: Allows the user to scroll through available systems, groups,

or channels, depending on personality programming. Secondary Function Primary Function: Accesses the pre-stored menu. Secondary Function
to an “Enter” key.
: Changes the selection for an item within a list.
: Activates a selected item within the menu. This is similar
1-9, *, 0, #
Selects a specific system. If the rotary knob is used to select the system and more than 16 systems are programmed in the radio, the
select additional banks (groupings) of systems. These keys are used to place telephone interconnect and individual (unit-to-
unit) calls. The keys operate like a normal telephone keypad. Selects a specific group.
Turns the Scan operation ON and OFF.
Enables or disables Private Mode for the system/group/channel displayed.
Adds groups or channels from the currently selected system to the Scan list. Status. Access to the status list (0-9). The Status key permits the transmission
of a pre-programmed status message to an EDACS site. Message. Access to the message list (0-9). The Message key permits the
transmission of a pre-programmed message to an EDACS site. Deletes selected groups or channels of the currently selected system from the
Scan list. Places telephone interconnect calls.
key is used to
Initiates individual calls.
51

8.3 DISPLAY

The radio Display is made up of 3 lines (see Figure 8-4). Lines 1 and 2 contain eight alphanumeric character blocks and are used primarily to display system and group names. Line 1 also displays radio status messages. The 3rd line is used primarily to display radio status icons. All three lines are used to display menu options when in the menu mode. If programmed, the display backlighting will illuminate upon power up or when radio controls are operated.
Figure 8-4: Radio Display
52

8.4 RADIO STATUS ICONS

Status Icons indicate the various operating characteristics of the radio. The icons show operating modes and conditions and appear on the third line of the display (see approximate level only, based on battery voltage.
Table 8-1: Display Descriptions
Steady – “Busy” transmitting or receiving Flashing – call queued
Steady – special call mode (individual or telephone)
Steady – during all radio transmissions Steady – transmit at low power
If icon is not visible – transmit at high power Steady – battery charge indicator.
Table 8-1). The battery icon indicates
Flashing – Low battery indicator. Steady – Indicates the current channel is set up as
an analog channel. Steady – trunked system in Failsoft
Steady – group or channel in scan list
Steady – priority 2 group or channel
Steady – priority 1 group or channel Steady (rotates clockwise) – scan mode enabled
If icon is not visible – scan is disabled Steady – transmit in encrypt mode Flashing – receiving an encrypted call Steady – Indicates the current channel is set up as a
ProVoice or Aegis channel
™
mode
53

8.5 TRI-COLOR LED

The Tri-Color LED changes color to indicate radio status and is visible from both the front and top of the radio (see
Green: Receiving Red: Unencrypted transmission Orange: Encrypted transmission
Figure 8-5). The three colors of the LED and the status they represent are:

8.6 STATUS MESSAGES

Figure 8-5: Tri-Color LED
During radio operation, various radio Status Messages can be displayed. The messages are described below.
MESSAGE
QUEUED SYS BUSY
DENIED
CC SCAN
WA SCAN
SYSC ON
SYSC OFF
NAME DESCRIPTION
Call Queued Indicates the system has placed the call in a request queue. System Busy Indicates the system is busy, no channels are currently available, the
queue is full, or an individual call is being attempted to a radio that is currently transmitting.
Call Denied Indicates the radio or talkgroup is not authorized to operate on the
selected system and/or talkgroup.
Control Channel Scan
Wide Area Scan
System Scan Features On
System Scan Features Off
Indicates the control channel is lost and the radio has entered the Control Channel Scan mode to search for the control channel (usually out of range indication).
Indicates the radio has entered the Wide Area Scan mode to search for a new system (if enabled through programming).
Indicates the System Scan features are enabled.
Indicates the System Scan features are disabled.
54
LOW BATT
RXEMER
Low Battery Battery voltage has dropped to the point to where the radio is no longer
able to transmit. The radio will still receive calls until the battery is discharged beyond the point of operation at which time the radio automatically shuts down.
Receive Emergency
Indicates an emergency call is being received. This message will be flashing on line two.
MESSAGE NAME DESCRIPTION
TXEMER
Transmit Emergency
VOL=31
WHC
Volume Level Indicates the current volume level. The volume level display ranges
Who Has Called
UNKNOWN
Unknown ID Indicates an individual call is being received from an unknown ID.

8.7 ERROR MESSAGES

If either of the Error Messages shown below is displayed, the radio is programmed incorrectly or needs servicing.
DSP ERR
or
ERR=XXXX
(PowerUp only)
Where: xxxx is the error code and DSP ERR or DIG V ERR is the message.

8.8 ALERT TONES

Indicates an emergency call has been transmitted on this radio. This message will be flashing on line two.
from OFF (silent) to 31 (loudest). Indicates an individual call has been received, but not responded to. The
indicator turns OFF if the individual call mode is entered, the system is changed, or the radio is turned off and then on again.
DIG V x ERR x
The P7200 radio provides audible Alert Tones or “beeps” to indicate the various operating conditions (see Table 8-2).
Table 8-2: Alert Tones
NAME TONE DESCRIPTION
Call Originate
Call Queued Autokey System Busy Call Denied
Carrier Control Timer
Low Battery
TX Low Battery
one short mid-pitched
one high-pitched one mid-pitched three low-pitched one low-pitched
five high-pitched/one long low­pitched
one low-pitched/one short mid­pitched
one low-pitched
OK to talk after pressing the push-to-talk button
Call queued for processing Queued call received channel assignment System busy or unable to complete call Radio is not authorized on the system or
group PTT depressed for maximum length of time
Low battery
After PTT - battery too low to transmit
Alert
55
b
r
d
b

8.9 SYSTEM SELECTION

METHOD 1: From the control knob: If system selection is programmed to the
SYSTEM/GROUP/CHANNEL SELECTION control knob, select a system by turning the knob to the desired system number position (1-16). The display registers the new system
name on line one. The 16 system number positions (17-32)
METHOD 2: (System and Scan model radios only) From the keypad: If system selection is
programmed as the primary function of
to scroll through the system list. The display registers the new system name on line
one.
button can be programmed to provide access to a “2
and , select a system by pressing o
nd
ank” of
METHOD 3:
METHOD 4:
Example: System: 1 = North Group: 1 = Group 1
2 = South 2 = Group 2 3 = East 3 = Group 3 4 = West 4 = Group 4
1. Press
2. Press
(System model radios only) Direct Access: Press Press the numeric key, which is mapped to the desired system. Press
move to the selected system. (Select model radios only) If programmed, press the
change systems. The display registers the new system name on line one.
If system selection is programmed to the SYSTEM/GROUP/CHANNEL knob, direct access to systems will not be available. Pressing or will scroll through different
sets of 16 systems each (banks) if more than 16 systems are programmed into the radio. The systems within each bank are then selectable via the SYSTEM/GROUP/CHANNEL knob as described previously in METHOD 1.
. (South is the currently selected system.) . (Press 4 to select “West” system.)
to enter the system select mode.
. The radio will
button to scroll through an
3. Press
. (West is the newly selected system.)

8.10 GROUP/CHANNEL SELECTION

Several methods can be used to select a new group or channel. METHOD 1: From the control knob: If group selection is programmed to the
SYSTEM/GROUP/CHANNEL knob, select a group by turning the SYSTEM/GROUP/CHANNEL knob to the desired group number position. The display registers the new group name on line two. If the knob is moved to a position greater than the number of programmed groups, the highest programmed group will remain selected.
button can be programmed to provide access to a “2
The positions (17-32)
56
nd
ank” of 16 group number
f
METHOD 2: (System and Scan model radios only) From keypad: If group selection is
programmed as the primary function of
andselect a group by pressing
or to scroll through the group list. The display registers the new group
name on line two.
METHOD 3:
METHOD 4:
(System model radios only) Direct Access: Press mode. Press the numeric key mapped to the desired group. Press
will move to the selected group. (Select model radios only) If programmed for groups, press the
change groups. The display registers the new group name on line two. I programmed for channels, press the button to change the channel. The
display registers the new channel.

8.11 MODIFY SCAN LIST

8.11.1 System Model

1. Press to toggle scan OFF and verify is not displayed.
2. Select group or channel.
3. Press
4. Press
5. Press
6. Press
once to remove group or channel from list. once to add as a normal group or channel. twice to add as a Priority 2 group. three times to add as a Priority 1 group.
to enter the group select
. The radio
button to
7. Press

8.11.2 Scan Model

1. Press to toggle scan OFF and verify is not displayed.
2. Select group or channel.
3. Press
4. Press
5. Press
6. Press
7. Press
to re-start scanning.
once to remove group or channel from the list. once to add as a normal group or channel. twice to add as a Priority 2 group. three times to add as a Priority 1 group. to re-start scanning.
57

8.12 NUISANCE DELETE (SYSTEM MODEL)

A channel can temporarily be deleted from the scan list if it is not the currently selected channel.
1. Turn Scan ON.
2. When the radio receives a call on the channel, press the
list until the radio is power cycled.

8.13 BACKLIGHT ON/OFF

1. Press to access the menu.
2. Press
3. Press
4. Press
5. Press
  to scroll through menu until “BCKLGHT” appears. to select Backlight menu. or to toggle backlight ON and OFF. to select new backlight setting.

8.14 CONTRAST ADJUST

1. Press to access the menu.
2. Press
3. Press
4. Press
5. Press
or to scroll through menu until “CONTRAST” appears. to select Contrast menu. or to adjust contrast setting from 1 - 4. to select new contrast setting.
. The channel is removed from the scan

8.15 DECLARING AN EMERGENCY

1. Press and hold the red Emergency/Home button (the length of time is programmable; check with the
system administrator).
2. *TXEMER* will flash in the display, plus and will be displayed. After 2-3 seconds the
transmit icon
3. *TXEMER* and will remain until the emergency is cleared.
4. Press the PTT and
5. Release PTT when the transmission is complete.
will turn off.
will reappear.

8.16 LOCKING/UNLOCKING KEYPAD

1. Press button.
2. Within 1 second, press the
button on the side of the radio.
58

8.17 HIGH/LOW POWER ADJUSTMENT

Transmit power adjustment is possible if enabled through programming. Within conventional systems, transmit power is adjustable on a per channel basis. Within EDACS systems, transmit power is adjustable on a per system basis.
There are two ways to toggle between high and low power:

8.17.1 Using the Menu Button

1. Press .
2. Using the
display.
3. Press
4. “POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

8.17.2 Using the Pre-Programmed Option Button

Press the Option button. “POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

8.18 MENU

The Menu function accesses features that are not available directly from the keypad. The order and actual menu items available is configurable through programming. Upon radio power up, the menu item that is at the top of the menu list will always be displayed first. Subsequent access to the menu function will return the last menu item that was shown in the display and cursor position.
1. To enter the menu mode, press
2. Upon entering the menu selection mode, Menu options will appear in the display (see
and keys, scroll until the cursor (>) appears to the left of “TX POWER” in the
again to toggle between High and Low power.
.
Figure 8-6).
Figure 8-6: Menu Display
3. The radio will continue to receive and transmit normally while in the menu function.
4. To scroll through the menu options use the
found align the cursor with the option then press shown in the display can now be changed by using
values.
5. Once the desired setting is reached press
level.
For menu items that display radio information, pressing informational displays. The possible menu items are in
or keys. When the required menu item has been
to select it. The menu item's parameter setting
or to scroll through the list of parameter
to store the value and return the menu option selection
or will scroll through a list of
Table 8-3.
59

8.18.1 Menu Item Selection Process

An example of the menu item selection process and menu item parameter change is detailed below for the backlight menu item.
1. Press
2. Press
. The menu mode is entered. or until the display shows:
3. Press
. The backlight menu item is activated. Line one shows the active menu item and its current
parameter setting. Line two shows the currently selected system or group name (see
Figure 8-7).
Figure 8-7: Backlight Menu Display
4. The menu item's parameter setting shown in the display can now be changed by using
5. Once the desired setting is reached press
to store the value and return the menu option selection
or .
level.
For menu items that display radio information pressing informational displays. An example of information displays is shown in
or will scroll through a list of
Table 8-4.
60
The TX POWER menu item, when selected, toggles LOW/HIGH power. It does not use
or to scroll nor is an additional press of the button required.
FEATURE DISPLAY
Keypad Lock
Backlight Adjust
Contrast Adjust
Table 8-3: Menu Item Information
Menu Item: KEY LOCK
Once Selected: LOCKED
Menu Item: BCK LIGHT
Once Selected: BCKL=
Menu Item: CONTRAST
Once Selected: CNTRST=
PARAMETER
SETTING
Locked Unlocked
OFF/ON Selects the light level for backlighting.
1, 2, 3, 4 Selects the display contrast level.
Locks the keypad. To unlock; press and release “M” then within 1 second press the option button (NOTE: this sequence is also a short cut to locking the keypad.)
COMMENT
FEATURE DISPLAY
Transmit Power Select
Radio Revision Information
Toggle Scan On/Off SCAN ON/OFF Toggles Scan operation ON/OFF. Toggle Private Mode PRIVATE ON/OFF Toggles Private Mode ON/OFF. Display Current
Encryption Key Display Current Home
Group/Channel Select Desired System SYS SEL N/A Selects a new system. Add Group/Channel to
Scan List Delete Group/Channel SCAN DEL N/A Deletes Group or Channel from Scan List. Add/Delete Scan List SCAN A/D N/A Add or Delete from Scan List. Select Telephone
Numbers From Phone List
Data Operation NO DATA ON/OFF Trunked Only. Toggles Data Operation ON/OFF. Select Individual Call
from IC List Select Group GRP SEL N/A Trunked Only. Feature Encryption
Display
System Scan Enable
Menu Item: TX POWER
Once Selected: POWER=
Menu Item: REVISION
DISP KEY N/A
HOME N/A Selects Home Group/Channel
SCAN ADD N/A Adds to Scan List.
PHN CALL N/A Trunked Only.
IND CALL N/A Trunked Only.
Menu Item: FEATURES
Menu Item: SYS SCAN
Once Selected: SYSC ON or SYSC OFF
PARAMETER
SETTING
HIGH or LOW Selects radio output power mode.
N/A
N/A
ON/OFF Toggles System Scan feature ON/OFF.
Selects the information display to view. Informational display only (see
Displays current encryption key. Informational display only. No selectable settings.
Indicates current features programmed into the radio as well as certain information required to add features to the radio. Informational display only. No user selectable settings.
COMMENT
Table 8-4). No user selectable settings.
Table 8-4: Information Display
PRS - NAME
XXXXXXXX
EEPR SIZ EEPROM Size
RAM SIZ RAM Size FLSH SIZ Flash Size RF BAND Frequency Band
HSD RATE Data Transfer Rate
PRS VER Software Version
DSP_ _RAM DSP Software Version
FLSH - VER
r - released, 01A - revision state
M/A-COM
(C) – 2004
Personality Name
FLASH Software
Copyright
61

8.19 DIGITAL VOICE OPERATION

Digital voice programmed systems have three (3) different voice modes: clear (analog), digital, and private (encrypted). The voice modes are programmed on a per-group basis within each trunked system.

8.19.1 Clear Mode

The Clear Mode is a voice mode in which the radio transmits and receives only clear (analog) voice signals. These analog signals are non-digitized and non-encrypted. Clear mode transmissions can be monitored easily by unauthorized persons.
Groups or channels programmed for clear operation cannot transmit or receive digital or private messages.

8.19.2 Digital Mode

The Digital Mode allows the radio to transmit and receive digitized voice signals. Digital signals provide improved weak signal performance and cannot be easily monitored with a standard receiver. Groups and channels programmed for digital operation transmit only digital signals. Message trunked group calls and individual phone calls (I-Calls) are answered back in the mode in which they were received assuming the call or hang time is still active. Individual phone, all call, and emergency calls are transmitted clear if the digital mode is disabled or inoperative.
If receiving an analog message trunked call, the radio responds in the analog mode during the hang time on the working channel.
If receiving an analog I-Call, the radio responds in the analog mode during the hang time. When using the *WHC* feature to respond to an I-Call (after the hang time has expired), the call is
transmitted in the mode defined by the system mode as programmed for the current system if the ID being called is not in the I-Call list. If the ID is in the I-Call list, then the call is transmitted as defined by the I­Call mode programmed in the list for that ID.
The overdial DTMF tones are not available while in the Digital Mode.

8.19.3 Private Mode

The Private Mode allows the radio to transmit encrypted messages and receive clear or private transmissions. The radio transmits private if the group/channel is programmed for private operation and forced operation is pre-programmed. If autoselect operation is pre-programmed and the radio is in the Private Mode, the radio transmits in the mode of the received call if the hang time is active. If no hang time is active, the radio transmits private.
Cryptographic keys are transferred to the radio using a cryptographic Keyloader. Up to seven (7) different cryptographic keys, numbered 1-7, can be transferred from a Keyloader and stored in the radio. An individual key is automatically selected on a per-group/channel basis according to the radio programming. Groups and channels within the digital system can be programmed for keys 1-7 (private). Up to 8 banks of 7 keys can be stored for private systems. The bank is specified per system.
62
When operating on a group or channel programmed for Private Mode, all transmissions are private transmissions and the radio receives clear and private signals. The status icon
Private Mode is enabled. If the selected group or channel is programmed for auto-select capability, the mode may be toggled between private and clear with the
Radios programmed for forced private operation do not allow a change of the transmit mode.
key, then following the selection mode rules.
is displayed when the
8.19.3.1 Displaying the Currently Used Cryptographic Key Number
To Display the Currently Used Cryptographic Key Number for either the system encryption key (for special call such as individual, phone, all, agency or fleet) or the group/channel key (for group or conventional calls), perform the following procedure:
1. Press the
2. Use the
3. Then use the
group/channel key (
button.
or button to select "DISP KEY."
or button to toggle between displaying the system key (Figure 8-8) or the
Figure 8-9).
Figure 8-8: System Encryption Key Display
Figure 8-9: Group/Channel Encryption Key Display
8.19.3.2 Key Zero
All cryptographic keys can be zeroed (erased from radio memory) by pressing the button and while still pressing this button, press and hold the
will begin at the start of the 2 second period and then switch to a solid tone after the keys have been zeroed. The display will indicate KEY ZERO.
If the cryptographic key(s) are zeroed, one or more keys must be transferred from the Keyloader into the radio before private communications may continue.
button. Press both buttons for 2 seconds. A series of beeps

8.19.4 Private Operation

8.19.4.1 Receiving an Encrypted Call
When receiving, the radio automatically switches between clear or private operation. If the transmission being received is an encrypted transmission, it will be decrypted, the
unsquelch and the message will be heard in the speaker. For this to occur, the selected group or channel must be programmed for private operation and the correct cryptographic key must be loaded into the radio.
icon is displayed, the receiver will
63
8.19.4.2 Transmitting an Encrypted Call
1. Select the desired group or channel.
2. Place the radio in Private Mode by pressing
System radio, the enabled, the
key can be used to toggle the Private Mode ON/OFF. When Private Mode is
icon is displayed.
key, and then follow the selection mode rules. On a
If the last state of the radio was Private Mode, the Private Mode will be enabled on power up. Also, the Private Mode will be enabled if forced operation has been programmed in the radio.
If a group or channel is not programmed for Private Mode operation, PVT DIS will be displayed if an attempt is made to enable private transmit mode. It is not possible to operate on this group/channel in Private Mode.
If the radio does not have the correct encryption key loaded, NO KEY# will be displayed and the call will not be transmitted.
3. Continue with standard transmission procedures. A Private Mode access tone will be heard when the
PTT button is pressed.
8.19.4.3 Scanned Group Calls
Receiving a Scanned Group Call is the same as receiving a selected group call. During the scan hang time, if the radio was programmed for autoselect, it will transmit back in the same mode it received the call. For example, if a clear group is entered in the scan list, it will only receive clear calls. If the same group was available in private and entered in the scan list, it can receive clear and private calls, provided autoselect was programmed in the radio. The user can select transmitting on the scanned or selected group. If a group is entered in the scan list more than once and in different modes (clear, digital, private), only the first occurrence of the group will be used.
Table 8-5: Transmit/Receive Mode Compatibility for
Digital Voice Operation
GROUP/CHANNEL
PROGRAMMING
(TRANSMIT)
CLEAR Yes No No DIGITAL Yes Yes No PRIVATE Yes No Yes*
*assumes the proper cryptographic key is loaded
CLEAR
RECEIVE

8.20 SCANNING TRUNKED GROUPS

Groups that have been previously added to the scan list on a per system basis may be scanned. Each system's group scan list is retained in memory when the radio is powered OFF or when the battery pack is removed.

8.20.1 Turning Scan On and Off

1. Toggle Scan operation ON by pressing (Scan model) or (System model). icon rotates
clockwise to indicate radio is scanning.
2. Toggle Scan operation OFF by again pressing
disappear.
DIGITAL
RECEIVE
PRIVATE
RECEIVE
(Scan model) or (System model). will
64
• If the radio scans to a group other than the selected group then receives a call on the selected
group, the radio will switch to the selected group. However, if the “scanned-to” group is programmed at a higher priority the radio will remain on the “scanned-to” group.
• The radio will continue scanning if a new group is selected when scan is ON.
3. Pressing the PTT button when scan is ON will cause the radio to transmit on the displayed group or to
the currently selected group (depending on programming).

8.20.2 Adding Groups to a Scan List

Scan Model Radio:
1. Scan must be OFF to add/delete groups to/from the scan list. If the Scan icon
key to turn Scan OFF.
2. Select the desired group using the SYSTEM/GROUP/CHANNEL knob and/or the
the selected group is currently on the list, pressing
3. If the scan list status icon is blank (
will be displayed on line three.
4. Press the
5. Press
section sequence only advances the group to the next high priority level and stops at priority level 1. To select a lower priority level, the group must be deleted from the scan list and then added back to the scan list. Each new group added to the scan list starts at the lowest priority. If the Priority 1 and Priority 2 groups are already set and a new group is assigned as Priority 1 or Priority 2, the previously assigned group will change to non-priority scanning. One of the following messages may be momentarily displayed:
SCAN DIS
FIXED P1
FIXD LST
key a second time to set the group to Priority 2. A is displayed on line three.
a third time to set the group to Priority 1. A is displayed on line three. The priority level
The radio is not programmed to scan. A Priority 1 group has been pre-programmed into the radio. A new Priority 1 group
cannot be selected. A fixed scan list has been pre-programmed into the radio. It is not possible to change
the list without reprogramming the radio.
), the group can be added to the scan list by pressing the key.
will display on line three.
is ON, press the
or keys. If
To quickly view multiple group scan status, press then slowly but consistently rotate the group knob. Each group status will appear on the display.
System Model Radio:
1. With scan operation turned OFF, select the desired group to add to the selected trunked sy stem group
scan list.
2. Press
3. While the status is displayed, press
. The current priority status of the group will be displayed in column 10 of line three for a
time-out period. If the group is not part of the scan list the status will be blank.
to add the group to the scan list. is displayed on line three.
65
4. Press a second time to set the group to Priority 2. A is displayed on line three.
5. Press
SCAN DIS
FIXED P1
FIXD LST
a third time to set the group to Priority 1. A is displayed on line three. The priority level
selection sequence only advances the group to next higher priority level and stops at priority level 1. To select a lower priority level, the group must be deleted from the scan list and then added back to the scan list. Each new group added to the scan list starts at the lowest priority. If the Priority 1 and Priority 2 groups are already set and a new group is assigned as Priority 1 or Priority 2, the previously assigned group will change to non-priority scanning. One of the following messages may be momentarily displayed:
The radio is not programmed to scan. A Priority 1 group has been pre-programmed into the radio. A new Priority 1 group
cannot be selected. A fixed scan list has been pre-programmed into the radio. It is not possible to change
the list without reprogramming the radio.
To quickly view multiple group scan status, press either or the key. Then slowly but consistently rotate the group knob. Each group status will appear on the display.

8.20.3 Deleting Groups from a Scan List

Scan Model Radio:
1. With scan operation turned OFF, select the desir ed group to delete from the selected trunked system
group scan list.
2. Press
3. While the current status is displayed, press
System Model Radio:
1. With scan operation turned OFF, sel ect the desired group to delete from the selected trunked sy stem's
2. Press
3. While the status is displayed, press
. The current status of the group is displayed for a time-out period.
. until the group from the scan list is "blank". The
sequence is "blank", show a "blank" for the time-out period when it is the selected channel.
group scan list.
, , ,"blank". Any group that is not in a trunked system group scan list will
. The current status of the group is displayed for a time-out period.
to delete the group from the scan list. , ,or turns OFF.
Any group that is not in a trunked system group scan list will show a "blank" for the time out period when it is the selected channel.

8.20.4 Nuisance Delete

A group can also be deleted from the scan list, if it is not the currently selected group, by pressing the key (Scan model) or the
unwanted group. The group will be deleted from the system's group scan list in the same manner as if done using the steps above. Deletions done in this manner will not remain deleted if the radio is powered OFF and then powered ON.
key (System model) during scan operation while the radio is displaying the
66

8.21 SCANNING TRUNKED SYSTEMS

The radio can be programmed with the following System Scan features. These features are automatically enabled when the radio is powered ON. A key or menu option is also defined to allow the System Scan features to be toggled during radio operation. The System Scan state will be maintained through system changes but will default to ON when the radio is powered ON.
Enable/Disable via Menu Selection:
Press and then use the or buttons to scroll through the selections until SYS SCAN is displayed. Then press to toggle the System Scan state. The SYSC ON or SYSC OFF display message is
displayed for two seconds to show the new state.
Enable/Disable via Pre-Programmed Keypad Key:
Press the key pre-programmed to toggle System Scan and the SYSC ON or SYSC OFF display message is displayed for two seconds to show the new state.

8.21.1 Wide Area System Scanning

The P7200 series radio can be programmed for Wide Area System Scan operation for roaming across mobile systems. Upon the loss of the currently selected system's control channel, radios can be programmed to automatically scan the control channels of other systems. If a new control channel is found, the radio will switch to the new system and sound an alert tone.

8.21.2 Priority System Scan

The radio can also be programmed for Priority System Scan. The priority system is the desired or preferred system. While receiving the control channel of the selected system, the radio will periodically leave the selected system and search for the control channel of the priority system. This is done at a programmable rate defined by the value in the Priority Scan Time control (unless the ProScan is enabled, as explained in the following sections). This priority scan timer is reset each time the PTT button is pressed or when the call is received. If the priority system control channel is found, (or meets the predefined criteria <ProScan>), the radio will automatically switch to the priority system.
™
algorithm
8.21.2.1 Enabling the Wide Area System Scan Function
If the radio cannot find the control channel of the selected system and begins to wide area system scan, the radio will only scan for the priority system control channel if the priority system is in the wide area scan list.
8.21.2.2 When ProScan is Enabled
The radio monitors the priority system and will switch to the priority system if the criteria defined by the controls in the ProScan Options dialog box are met. If ProScan is enabled, the rate at which the radio will scan for the priority system is defined by the System Sample Time control, located in the ProScan Options dialog box. See Section
8.21.3 for more information on ProScan

8.21.3 ProScan

The radio may be programmed for ProScan system scan operation for multi-site applications depending on the version of radio flash code. ProScan is an improved multi-site system scanning algorithm designed to replace ProSound radio to communicate on, when the selected system drops below a predefined level. This is accomplished by enabling each radio to analyze the signal quality of its current control channel and compares it with the
™
scanning. ProScan provides the radio with the ability to select a new system for the
67
signal quality of the control channel for each site in its adjacent scan list. (The signal quality metric used for the ProScan algorithm is based on a combination of both Received Signal Strength Indicator (RSSI) and Control Channel Verification (CCV) measurements.) When the selected system degrades to a pre­programmed level, the radio will begin to look for a better control channel. Once a control channel that exceeds the pre-programmed parameters is found, the radio will change to the new system and emit a tone (if enabled through programming). If the control channel is completely lost, the radio will enter Wide Area System scanning and search the programmed adjacent systems until a suitable control channel is found.

8.22 EMERGENCY OPERATION

The radio's ability to declare an emergency, clear an emergency, remain locked on an emergency system and group, and the emergency audio and display freeze can each be enabled or disabled through programming. When an emergency is declared scanning will stop and restarts only after the emergency has been cleared.

8.22.1 Receiving an Emergency Call

When receiving an Emergency Call on the selected group and system, an alert beep is heard and is displayed. The message *RXEMER* flashes in the display on line two until the emergency condition is cleared.

8.22.2 Declaring an Emergency Call

To send an emergency call to a selected system and group (or on an optionally pre-programmed group):
1. Press and hold the red EMERGENCY button that is on top of the radio in front of the antenna for
approximately one second (this time is programmable and therefore could be longer or shorter; check with the system administrator). The radio will transmit an emergency call request with the radio ID until an emergency channel assignment is received.
2. When the working channel assignment is received, the radio sounds a single beep indicating the radio
has auto keyed (see Table 8-2) and is ready for voice transmission. *TXEMER* flashes on line two in the display until the emergency is cleared.
3. Press PTT and speak into the microphone in a normal voice.
4. Release PTT when the transmission is complete. To clear the emergency first press and hold the
the EMERGENCY button. (This will work if the radio is programmed to clear emergencies.)

8.23 INDIVIDUAL CALLS

8.23.1 Receiving and Responding to an Individual Call

When the radio receives an individual call (a call directed only to the user's radio), it un-mutes on the assigned working channel and displays
unit sending the message, or the associated name if the ID number is found in the individual call list. The radio can be programmed to ring when an individual call is received. If enabled, the ring begins five
seconds after the caller un-keys and will continue until the PTT button, the call mode is entered.
and momentarily turn ON.
button. While continuing to hold the button, press
. The first line on the display shows the logical ID number of the
button or the individual
68
The volume of the ring is adjustable through the volume control levels.
If a response is made by pressing the PTT to the call prior to the programmed call-back time-out, the call will automatically be directed to the originating unit. If a response is not made before the call-back time­out, the radio will return to normal receive display, and *WHC* will appear on the first line of the LCD.
To respond after the call-back time-out, press the the first line and WHCI=1 on the second line. Pressing the PTT button at this point will initiate an individual call back to the original caller.
The radio stores the IDs of the last 10 callers in the Calls Received List as shown. Individual calls are stored in the top half of the list (1-10) and Group calls are stored in the bottom half of the list (1-10). The most recent call is stored in position 1, the second most recent call is stored in position 2, etc.
Figure 8-10: Calls Received Lists
To access this list, press the the list. Pressing the
example of the display is shown in
key will display the time elapsed since the call was received. After pressing an
key twice. Use the or buttons or buttons to scroll through
Figure 8-11:
key. The radio's display will show the callers ID on
Figure 8-11: WHC Individual Call Display
Pressing PTT will initiate an individual call to the displayed logical ID. Powering the radio OFF and ON will clear this list.
69

8.23.2 Sending an Individual Call

8.23.2.1 Pre-Stored Individual Calls
The following procedures describe how to initiate and complete a Pre-Stored Individual Call.
System Model Radio:
1. To select a pre-stored individual phone number, enter the individual call mode using the
displayed. Then scroll through the list of stored numbers using the
2. Press the PTT button; when the radio is clear to trans mit,
access tone sounds. Line one shows the called individual's name if found in the list of stored individuals or LID followed by the logical ID number of the unit being called. The message *INDV* displays on line two.
Scan Model Radio:
1. To select a pre-stored individual number, enter the menu mode by pressing the
the mode list using the
2. Press
3. Press the PTT button; when the radio i s clear to transmit
. is displayed. Scroll through the list of stored phone numbers using the  or  key until
the desired number is displayed. Press
access tone sounds. Line one shows the called individual's name or LID. The message *INDV* displays on line two.
or key.
.
or key.
turns ON, turns OFF and the channel
key. Scroll through
turns ON, turns OFF and the channel
key. is
8.23.2.2 Direct Dial Individual Calls (System Model Only)
1. The following procedure describes how to initiate and complete a Direct Dial Individual Call.
2. The individual call ID is not stored in the pre-stored list of call IDs but the individual unit ID is
known, it can be entered directly from the keypad.
70
3. Press and hold the PTT button to transmit.
tone will sound. Line one shows the called individual's ID followed by the logical ID number of the unit being called. The message *INDV* displays on line two. Proceed talking into the microphone.
will turn ON, will turn OFF, and the channel access

8.23.3 Call Storage Lists

There are two lists available for call storage in the P7200 series radios, the calls received list (1 - 10) and the personality list (1 - 99 as defined by the user). When the individual call mode is entered by pressing
, the calls received list is available. The user can toggle to the personality list by selecting any index
other than 0 or toggle between the two lists by pressing the list wraps on itself and not into the other list.
key. If wrap is enabled, the calls received
Figure 8-12: Calls Received and Personality Lists
The saved call list shows all ten storage locations. If no calls have been received, the saved call list will be empty and the pre-stored list will be available upon entering the individual call mode.
When in the saved call list, pressing the indicates how long ago the call was received. When in the pre-stored list pressing the
Logical IDentification (LID) ON and OFF.
key toggles the time stamp ON and OFF. The time stamp

8.24 TELEPHONE INTERCONNECT CALLS

8.24.1 Receiving a Telephone Interconnect Call

When the radio receives a telephone interconnect call (a call directed only to the user's radio), it un-mutes on the assigned working channel and displays . The first line displays *PHONE*. The second line
displays *INDV*. Proceed with the call. Press PTT to talk, release PTT to listen.

8.24.2 Sending a Telephone Interconnect Call

8.24.2.1 Pre-Stored Number
Use the following procedures to initiate and complete a Telephone Interconnect call:
1. System Model: To select a previously stored phone number, press
scroll through the list of stored numbers. Scan Model: To select a previously stored phone number, press
the menu option PHN CALL. Press the key again then use the or keys to scroll through the list of pre-stored numbers.
key toggles the
. Use the or keys to
. Use the or key s to select
2. Press and release the PTT button. When the radio is clear to transmit,
the channel access tone sounds. Line one shows the accompanying name selected from the list of stored numbers. The message *PHONE* displays on line two. The radio then automatically transmits the programmed number stored in the special call queue.
3. A telephone ring will be heard fro m the speaker. When someone answers the phone, press the PTT
button and speak into the microphone. Release the PTT button to listen to the callee. Unsuccessful interconnect signaling returns the radio to the normal receive mode and the number remains displayed
turns ON, turns OFF and
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until the special call is cleared or the time-out expires or another group or system is selected. Terminate a call by pressing the
8.24.2.2 Direct Dialing of Phone Calls (System Model Only)
1. If the phone number is not stored in the pre-stored list of phone numbers, but the phone number is
known, it can be entered directly from the keypad. Start by pressing the number from the keypad.
2. A telephone ring can be heard fro m the speaker. When someone answers the phone, press the PTT
button and speak into the microphone. Release the PTT button to listen to the individual called. Unsuccessful interconnect signaling returns the radio to the normal receive mode and the number remains displayed until the special call is cleared or the time-out expires or another group or system is selected.
button.
In half-duplex mode, only one person may talk at a time. The radio PTT button needs to be pressed in order to communicate to the individual called and released for the individual called to be heard.
, then enter the required
The last number directly entered can be recalled by first pressing then pressing the PTT button.
3. To terminate the call, momentarily press the
button.

8.24.3 Dual-Tone Multi-Frequency: Overdial/Conventional Mode

Once the radio has established a connection to the public telephone system, it may be necessary to “over­dial” more digits to access banking services, answering machines, credit card calls, or other types of systems that require Dual-Tone Multi-Frequency (DTMF) access digits.
Overdial operation can also be used to initiate a telephone interconnect call via DTMF signalling if a dial tone has already been accessed on the system. This method makes a telephone interconnect call while operating in the conventional mode but will also function in trunked mode if a dial tone is directly accessible.
Telephone numbers and other number sequences for overdialing can be stored in the phone list when programming the radio. These numbers are accessed by pressing
rules. The following steps are required to dial these numbers:
P7250 Model Radio:
1. Follow the procedure in Section
the system administrator for the procedure to access a dial tone on the trunked or conventional system.
2. Overdial numbers are transmitted by entering the phone mode using the
3. Press
to enter the overdial select/entry mode and follow the selection mode rules to call up a stored
number from the phone list. number needs to be transmitted again it must be selected or entered again (this prevents unwanted numbers from being sent the next time the PTT button is pressed during the call). This overdial
8.24.2 to establish a connection to the telephone system or consult
is displayed. Press PTT to send the overdial sequence once. If the
, then following the selection mode
button.
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select/entry mode remains active until the call is dropped, cleared, or is pressed. The overdial select/entry mode can be re-entered if the call is still active by pressing
P7270 Model Radio:
.
1. Follow the procedure in Section
the system administrator for the procedure to access a dial tone on the trunked or conventional system.
2. Overdial numbers are transmitted using either method as follows: This overdial select/entry mode remains active until dropped, cleared, or
select/entry mode can be re-entered if the call is still active by pressing
8.24.2 to establish a connection to the telephone system or consult

8.25 PROGRAMMABLE ENTRIES

8.25.1 Pre-Storing Individual and Telephone Interconnect Calls from the Keypad

Individual Call ID numbers, telephone numbers and other number sequences for overdialing are stored in the special calls lists when programming the radio. The first ten entry locations of these lists can be changed by the radio operator. The keypad is used when adding, changing, and storing numbers in these entry locations.
Use the following procedure to store a number in one of the first ten entries of a special call list:
1. Press
2. Scroll through the list using the or until one of the first ten entries is reached. NO ENTRY is
or to enter the individual call list or the phone call list. is displayed.
displayed if the location is empty.
is pressed. The overdial
.
3. Enter the desired number. If necessary , a pause can be entered by pressing and holding 0-9,
until an underscore appears in the display (telephone interconnect only). The individual call list
entries will accept up to 5 digits. The phone call list entries accept a combination of up to 31 digits and pauses.
4. Press and hold
Repeat steps 1-4 above if the number stored in an entry location needs to be changed.
until the display changes indicating that the number has been stored.

8.26 STATUS/MESSAGE OPERATION

Status operation permits the transmission of a pre-programmed status condition to the P25 Trunked or EDACS site. Message operation permits the transmission of a pre-programmed message text to a P25 Trunked or EDACS site.

8.26.1 Status Operation

To send a status condition, press the key followed by or key to select the pre-programmed status. STATUS and 0 through 9 pre-programmed status selections are available from the menu. If STATUS is selected you need to enter the number of the status message you intend to transmit. If no status has been programmed for the selected number key, the radio will display NO ENTRY. A valid selection will permit the status text to appear in the display for a pre-programmed time. After the time-out
, or
73
expires or the key has been pressed (the key will override the time-out period), the status is selected and will be transmitted to the site or stored in the radio memory where it can be polled by the site at a future time. Status messages can also be programmed for single key operation so that a single press of a key assigned to a status message automatically transmits that message. If the site does not receive the status properly, the radio will sound a low pitched tone.
The status selection can also be cancelled by pressing the CLEAR button prior to the time-out period. To view the currently selected status after it has been transmitted, press the
ramp to STS, re-press the status was not sent successfully to the site, the text associated with the status will flash in the display.
key again and then the CLEAR button prior to the time-out period. If the

8.26.2 Message Operation

Message Operation is performed in the same manner as status operation in the previous section.

8.27 DYNAMIC REGROUP OPERATION

Dynamic Regroup Operation permits multiple talk groups (up to eight) to be added to a radio via the system manager. The radio must be pre-programmed to respond to regrouping. Dynamic regrouping will not be activated in a radio until the system manager sends an activation message. Each radio that receives and acknowledges the regrouping instructions is successfully regrouped.
Pressing and holding the groupset. A double beep will sound for entry or exit. The display will indicate REGRP_0x where "x" is a digit of 1 to 8 indicating the group (when dynamic regroup has been enabled by the user). If the radio is in dynamic regroup and the user selects a group that has not been regrouped, the display will show NO
ENTRY. The radio will be prevented from transmitting and receiving calls in this condition except for
scanned groups.

8.27.1 Emergency Operation

If the pre-programmed groupset on the currently selected system contains an EMER/HOME group and the radio is in dynamic regroup, the radio will declare the emergency on the currently selected dynamic group.
button for 2.5 seconds toggles the user into and out of the dynamic regroup
key and then the key to

8.28 MACRO KEY OPERATION

Macro key operation permits the user to accomplish a series of keystrokes with a single "macro" keystroke. Each Macro Key is capable of executing up to twenty (20) keystrokes, to any push button input (i.e., keypad keys, OPTION buttons, etc.). Each macro key can be pre-programmed to activate when pressed or when released.
A macro key may also be pre-programmed to change the key stroke sequence the next time the macro key is activated.
For detail operation and assignment of macro keys, contact your communications supervisor or administrator.

8.29 PORTABLE DATA

The P7200 series portable radios, when operating in the P25 Trunked or EDACS configuration, permit either voice or data calls to be transmitted or received. The radio can handle only one type of call at a
74
time; however, either data or voice is selected transparently by the operator through normal usage of the radio. Data communications is not supported in the conventional mode.
The radios can be connected to Mobile Data Terminals (MDT) or to a host computer. Any RS-232 compatible device that supports the Radio Data Interface (RDI) protocol (Version 1.91 or greater) may be connected to the radio. Support for MDTs or host computers is a programmable option per radio. Additionally, radios may also be programmed for data only operation (no voice calls transmitted or received).

8.29.1 Displays

The following will be displayed during the various states of data mode of operation:
TX DATA
Appears on top line of display when the radio is transmitting a data call.
RX DATA
DATA OFF
DATA ON
Appears on top line of display when the radio is receiving a data call. Appears on top line of display when the radio is in the data disabled state. Appears for two seconds on top line of display when the radio is toggled to the data
enabled state.

8.29.2 DATA OFF Operation

The radio can be placed in the data disabled state by any of the following methods. When the data state is disabled, DATA OFF appears on the top line of the display.
• Declaring an emergency (not to be used unless an actual emergency condition exists). Alert tone will
sound.
• Pressing the OPTION button (if pre-programmed for “no data” key). Alert tone will sound.
• Pressing the “no data” (ND) key (pre-programmed).

8.29.3 DATA ON Operation

The data state is enabled by one of the following (depending on how it was disabled). DATA ON will appear on the top line in the display for two seconds then the display will return to normal.
• Pressing the “no data” (ND) key toggles data state ON or OFF.
• Clearing an emergency. (Valid only if the emergency caused “Data OFF” operation.)

8.29.4 Exiting Data Calls

Under normal conditions, the radio enters the scan lockout mode and returns to the control channel after completion of a data call (transmit or receive). If, during a data call, one of the following conditions occurs, the data call is immediately terminated and the radio performs the desired function:
• PTT is activated.
• Emergency is declared by pressing the pre-programmed emergency button.
• A group or system is changed.
75

8.29.5 Scan Lockout Mode

Following the transmission or reception of a data call, if scan is enabled, scanning will stop temporarily (two independent pre-programmed times; after a receive data call and after a transmit data call). During this time the scan indicator will flash to indicate that scan is enabled but temporarily suspended. This mode is normally exited when the pre-programmed time expires; however, the following actions will terminate the scan lockout mode before the timeout is completed:
• The CLEAR button is pressed. The PTT is pressed.
• The group or system is changed.
• Phone call mode is entered.
• Individual call mode is entered.
• A new emergency assignment has been received.
• An emergency is declared or cleared.
• An individual or phone call is received.
• An Agency, Fleet or System All Call is received.
• or is pressed to toggle Scan ON or OFF.

8.29.6 Data Lockout Mode

During the voice call scan hang time (pre-programmed) the radio will not receive data calls.
76

9 PROJECT 25 (P25) CONVENTIONAL OPERATION

9.1 TURNING ON THE RADIO

Power ON the radio by rotating the POWER ON-OFF/VOLUME knob clockwise. A short alert signal (if enabled through programming) indicates the radio is ready to use. Refer to POWER ON-OFF/VOLUME KNOB.
The display shows the last selected system and group or a default system and group (depending on programming).
Adjust the POWER ON-OFF/VOLUME knob to the desired volume level. Select the desired system and group. The display indicates the current system and group names. The radio is now ready to transmit and receive calls.

9.2 CONTROLS

The radio features two rotary control knobs and an emergency button mounted on the top of the radio (
Figure 9-1). Push-To-Talk and option buttons are mounted on the side (Figure 9-1). The front mounted keypad has no buttons on the P7230 Select model, six buttons on the P7250 Scan model, and 15 buttons on the P7270 System Radio.
Figure 9-1 for location of the
Figure 9-1: Top and Side View
77

9.2.1 Buttons and Knobs

This section describes the primary function of the button and knob controls. Other functions associated with these controls are detailed in later sections.
POWER ON-OFF VOLUME KNOB
CONTROL KNOB
EMERGENCY/ HOME BUTTON
Applies power to and adjusts the receiver’s volume. Rotating the control clockwise applies power to the radio. A single alert tone (if enabled through programming) indicates the radio is operational.
Rotating the control clockwise increases the volume level. Minimum volume levels may be programmed into the radio to prevent missed calls due to a low volume setting. While adjusting the volume the display will momentarily indicate the volume level (i.e. VOL=31). The volume range is from a minimum programmed level of zero (displayed as OFF in the display) up to 31, which is the loudest level.
Selects systems or group/channels (depending on programming). This is a 16­position rotary knob.
Note: A mechanical stop, which can limit the positions accessed, is shipped with the radio but must be installed. To install the mechanical stop, remove the channel knob, loosen the set screw on the channel knob metal base (using a
1.27mm hex wrench), and remove the channel knob metal base. Replace the 16 channel ring with the channel stop ring located at the desired channel. Reinstall the channel knob metal base, tighten the set screw, and reinstall the channel knob.
Automatically selects the pre-programmed Group/System by pressing and holding for a programmed duration. It can also be used to declare an emergency by pressing and holding for a programmed duration. The button must be pre­programmed for either operation, but not both.
PTT BUTTON
SIDE OPTION BUTTON 2
SIDE OPTION BUTTON 1
Push-To-Talk must be pressed before voice transmission begins. In trunked mode the radio’s ID is transmitted upon depression of the PTT button. (Refer to 9-1.)
Unsquelches the receiver and allows channel monitoring prior to transmission. Momentarily removes the Channel Guard decoding from the channel.
Activates one of a number of programmable software options selected during PC programming. Programmable options include hi/low power settings, keypad lock, LCD contrast, LCD and keypad back lighting.
Figure
78

9.2.2 Keypad (P7250 “Scan” and P7270 “System” Models Only)

The keys on the keypad have special functions and are labeled using a symbol or abbreviated word describing its primary function. Numeric entry is a secondary function of the keys. Each key is described in the following subsections.
Figure 9-2: P7250 “Scan” Radio Front Panel
KEY FUNCTION
Primary Function: Allows the user to scroll through available systems, groups, or channels,

depending on personality programming. Secondary Function
: Changes the selection for an item within a list.
Primary Function: Accesses the pre-stored menu.
 
Secondary Function key.
Adds/Deletes selected groups or channels from the Scan list of the currently selected system.
Turns the Scan operation ON and OFF.
Activates one of a number of programmable software options.
: Activates a selected item within a list. This is similar to an “Enter”
79
KEY FUNCTION

Figure 9-3: P7270 “System” Radio Front Panel
Primary Function: Allows the user to scroll through available systems, groups, or channels, depending on personality programming.
Secondary Function Primary Function: Accesses the pre-stored menu. Secondary Function
key.
: Changes the selection for an item within a list.
: Activates a selected item within a list. This is similar to an “Enter”
1-9, *, 0,
#
Selects a specific system. If the rotary knob is used to select the system and more than 16 systems are programmed in the radio, the
(groupings) of systems. These keys are used to place telephone interconnect and individual (unit-to-unit) calls. The
keys operate like a normal telephone keypad. Selects a specific group.
Turns the Scan operation ON and OFF.
Enables or disables Private Mode for the system/group/channel displayed.
Adds groups or channels from the currently selected system to the Scan list.
Deletes selected groups or channels of the currently selected system from the Scan list.
Places telephone interconnect calls.
Initiates individual calls.
key is used to select additional banks
80

9.3 DISPLAY

The radio Display is made up of 3 lines (see Figure 9-4). Lines 1 and 2 contain eight alphanumeric character blocks and are used primarily to display system and group names. Line 1 also displays radio status messages. The 3rd line is used primarily to display radio status icons. All three lines are used to display menu options when in the menu mode. If programmed, the display backlighting will illuminate upon power up or when radio controls are operated.
Figure 9-4: Radio Display
81

9.3.1 Radio Status Icons

Status Icons indicate the various operating characteristics of the radio. The icons show operating modes and conditions and appear on the third line of the display (see approximate level only, based on battery voltage.
Steady – “Busy” transmitting or receiving
Steady – special call mode (individual or telephone)
Steady – during all radio transmissions Steady – transmit at low power
If icon is not visible – transmit at high power Steady – battery charge indicator
Table 9-1). The battery icon indicates
Table 9-1: Display Descriptions
Flashing – Low battery indicator
Steady – Indicates the current channel is set up as an analog channel.
Steady – group or channel in scan list
Steady – priority 2 group or channel
Steady – priority 1 group or channel Steady (rotates clockwise) – scan mode enabled
If icon is not visible – scan is disabled Steady – transmit in encrypt mode Flashing – receiving an encrypted call Steady – Channel Guard enabled If icon is not visible – Channel Guard is disabled
Steady – Indicates the current channel is set up as a ProVoice or Aegis channel Steady – Indicates the current channel is set up as a Project 25 (P25) channel.
82

9.4 TRI-COLOR LED

The Tri-Color LED changes color to indicate radio status and is visible from both the front and top of the radio (see
Green: Receiving Red: Unencrypted transmission Orange: Encrypted transmission
Figure 9-5). The three colors of the LED and the status they represent are:

9.5 STATUS MESSAGES

Figure 9-5: Tri-Color LED
During radio operation, various radio Status Messages can be displayed. The messages are described below.
MESSAGE
TALKARND
LOW BATT
RXEMER
TXEMER
WHC
UNKNOWN
NAME DESCRIPTION
Talkaround Indicates the radio is operating on conventional channels in talkaround
mode (no repeater).
Low Battery Battery voltage has dropped to the point to where the radio is no longer
able to transmit. The radio still receives calls until the battery is discharged beyond the point of operation, at which time the radio automatically shuts down.
Receive Emergency
Transmit Emergency
Who Has Called
Unknown ID Indicates an individual call is being received from an unknown ID.
Indicates an emergency call is being received. This message flashes on line two.
Indicates an emergency call has been transmitted on this radio. This message flashes on line two.
Indicates an individual call has been received, but not responded to. The indicator turns OFF if the individual call mode is entered, the system is changed, or the radio is turned off and then on again.
83
b
m
b

9.5.1 Error Messages

If either of the Error Messages shown below is displayed, the radio is programmed incorrectly or needs servicing.
DSP ERR ERR=XXXX
(PowerUp only)
Where: xxxx is the error code and DSP ERR or DIG V ERR is the message.

9.6 ALERT TONES

The P7200 radio provides audible Alert Tones or “beeps” to indicate the various operating conditions (see Table 9-2).
NAME TONE DESCRIPTION
Call Originate Carrier Control
Timer Low Battery TX Low Battery
Alert
one short mid-pitched
five high-pitched/one long low­pitched
one low-pitched/one short mid­pitched
one low-pitched
or
DIG V x ERR x
Table 9-2: Alert Tones
OK to talk after pressing the push-to-talk button
PTT depressed for maximum length of time
Low battery
After PTT - battery too low to transmit

9.7 SYSTEM SELECTION

METHOD 1:
METHOD 2: (P7270 System and P7250 Scan model radios only) From the keypad: If system
METHOD 3:
METHOD 4:
From the control knob: If system selection is programmed to the SYSTEM/GROUP/CHANNEL SELECTION control knob, select a system by turning the knob to the desired system number position (1-16). The display registers the new system
name on line one. The 16 system number positions (17-32)
selection is programmed as the primary function of pressing
name on line one. (P7270 System model radios only) Direct Access: Press
mode. Press the numeric key, which is mapped to the desired system. Press will move to the selected system.
(Select model radios only) If programmed, press the change systems. The display registers the new system name on line one.
orto scroll through the system list. The display registers the new syste
button can be programmed to provide access to a “2
and , select a system by
to enter the system select
. The radio
utton to scroll through and
nd
ank” of
84
If system selection is programmed to the SYSTEM/GROUP/CHANNEL knob, direct
r
access to systems is not available. Press or to scroll through different sets of 16 systems each (banks) if more than 16 systems are programmed into the radio. The systems within each bank are then selectable via the SYSTEM/GROUP/CHANNEL knob as described previously in METHOD 1.
Example: System: 1 = North Group: 1 = Group 1
2 = South 2 = Group 2 3 = East 3 = Group 3 4 = West 4 = Group 4
Press
. (South is the currently selected system.) . (Press 4 to select “West” system.)
Press Press
. (West is the newly selected system.)

9.8 GROUP/CHANNEL SELECTION

Several methods can be used to select a new group or channel. METHOD 1: From the control knob: If group selection is programmed to the SYSTEM/GROUP/
CHANNEL knob, select a group by turning the SYSTEM/GROUP/CHANNEL knob to the desired group number position. The display registers the new group name on line two. If the knob is moved to a position greater than the number of programmed groups, the
highest programmed group will remain selected. The provide access to a “2
METHOD 2: (P7270 System and P7250 Scan model radios only) From keypad: If group selection is
programmed as the primary function of to scroll through the group list. The display registers the new group name on line two.
METHOD 3:
METHOD 4:
(P7270 System model radios only) Direct Access: Press mode. Press the numeric key mapped to the desired group. Press
to the selected group. (P7230 Select model radios only) If programmed for groups, press the
change groups. The display registers the new group name on line two. If programmed fo channels, press the button to change the channel. The display registers the new
channel.

9.9 MODIFY SCAN LIST

nd
bank” of 16 group number positions (17-32)
button can be programmed to
andselect a group by pressingor
to enter the group select
. The radio will move
button to

9.9.1 P7270 System Model

1. Press to toggle scan OFF and verify is not displayed.
2. Select group or channel.
3. Press
once to remove group or channel from list.
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4. Press once to add as a normal group or channel.
5. Press
6. Press
7. Press

9.9.2 P7250 Scan Model

1. Press to toggle scan OFF and verify is not displayed.
2. Select group or channel.
3. Press
4. Press
5. Press
6. Press
7. Press
twice to add as a Priority 2 group. three times to add as a Priority 1 group. to re-start scanning.
once to remove group or channel from the list. once to add as a normal group or channel. twice to add as a Priority 2 group. three times to add as a Priority 1 group. to re-start scanning.

9.10 NUISANCE DELETE (SYSTEM MODEL)

A channel can temporarily be deleted from the scan list if it is not the currently selected channel.
1. Turn Scan ON.
2. When the radio receives a call on the channel, press the
list until the radio is power cycled.

9.11 BACKLIGHT ON/OFF

1. Press to access the menu.
2. Press
3. Press
4. Press
5. Press
or to scroll through menu until “BCKLGHT” appears. to select Backlight menu. or to toggle backlight ON and OFF. to select new backlight setting.

9.12 CONTRAST ADJUST

1. Press to access the menu.
2. Press
3. Press
4. Press
5. Press
or to scroll through menu until “CONTRAST” appears. to select Contrast menu. or to adjust contrast setting from 1 - 4. to select new contrast setting.
. The channel is removed from the scan
86

9.13 DECLARING AN EMERGENCY

1. Press and hold the red Emergency/Home button (the length of time is programmable; check with the
system administrator).
2. *TXEMER* flashes in the display, plus and will be displayed. After 2-3 seconds the transmit
icon
3. *TXEMER* and remains until the emergency is cleared.
4. Press the PTT and
5. Release PTT when the transmission is complete.
turns off.
reappears.

9.14 LOCKING/UNLOCKING KEYPAD

1. Press button.
2. Within 1 second, press the Option button on the side of the radio.

9.15 HIGH/LOW POWER ADJUSTMENT

Transmit power adjustment is possible if enabled through programming. Within conventional systems, transmit power is adjustable on a per channel basis.
There are two ways to toggle between high and low power:

9.15.1 Using the Menu Button

1. Press .
2. Using the
display.
or keys, scroll until the cursor (>) appears to the left of “TX POWER” in the
3. Press
4. “POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

9.15.2 Using the Pre-Programmed Option Button

Press the Option button. “POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

9.16 MENU

The Menu function accesses features that are not available directly from the keypad. The order and actual menu items available is configurable through programming. Upon radio power up, the menu item that is at the top of the menu list will always be displayed first. Subsequent access to the menu function will return the last menu item that was shown in the display and cursor position.
1. To enter the menu mode, press
2. Upon entering the menu selection mode, Menu options will appear in the display (see
again to toggle between High and Low power.
.
Figure 9-6).
87
3. The radio will continue to receive and transmit normally while in the menu function.
Figure 9-6: Menu Display
4. To scroll through the menu options use the
found align the cursor with the option then press shown in the display can now be changed by using
values.
5. Once the desired setting is reached press
level.
For menu items that display radio information, pressing displays. The possible menu items are in
6. Table 9-3.

9.16.1 Menu Item Selection Process

An example of the menu item selection process and menu item parameter change is detailed below for the backlight menu item.
1. Press
2. Press
to enter the menu mode. or until the display shows:
or keys. When the required menu item has been
to select it. The menu item's parameter setting
or to scroll through the list of parameter
to store the value and return the menu option selection
or will scroll through a list of informational
88
3. Press
4. The menu item's parameter setting shown in the display can now be changed by using
5. After reaching the desired setting, pres s
6. For menu items that display radio information, pressing
. The backlight menu item is activated. Line one shows the active menu item and its current
parameter setting. Line two shows the currently selected system or group name (see
Figure 9-7: Backlight Menu Display
Figure 9-7).
to store the value and return the menu option selection
level.
or will scroll through a list of
informational displays. See
Table 9-4 for an example of information displays.
or .
The TX POWER menu item, when selected, toggles LOW/HIGH power. It does not use
or to scroll nor is an additional press of the button required.
Table 9-3: Menu Item Information
FEATURE DISPLAY
Keypad Lock
Backlight Adjust
Contrast Adjust
Transmit Power Select
Radio Revision Information
Toggle Scan On/Off SCAN ON/OFF Toggles Scan operation ON/OFF. Toggle Private Mode PRIVATE ON/OFF Toggles Private Mode ON/OFF. Display Current
Encryption Key Display Current Home
Group/Channel Select Desired
System Add Group/Channel to
Scan List Delete Group/Channel SCAN DEL N/A Deletes Group or Channel from Scan List. Add/Delete Scan List SCAN A/D N/A Add or Delete from Scan List. Talkaround TALKARND ON/OFF Conventional Only. Toggles Talkaround feature ON/OFF. Select Channel CHN SEL N/A Conventional Only. Feature Encryption
Display
Menu Item: KEY LOCK
Once Selected: LOCKED
Menu Item: BCK LIGHT
Once Selected: BCKL=
Menu Item: CONTRAST
Once Selected: CNTRST=
Menu Item: TX POWER
Once Selected: POWER=
Menu Item: REVISION
DISP KEY N/A
HOME N/A Selects Home Group/Channel
SYS SEL N/A Selects a new system.
SCAN ADD N/A Adds to Scan List.
Menu Item: FEATURES
PARAMETER
SETTING
Locked Unlocked
OFF/ON Selects the light level for backlighting.
1, 2, 3, 4 Selects the display contrast level.
HIGH or LOW Selects radio output power mode.
N/A
N/A
Locks the keypad. To unlock; press and release “M” then within 1 second press the option button (NOTE: this sequence is also a short cut to locking the keypad.)
Selects the information display to view. Informational display only
Table 9-4). No user selectable settings.
(see
Displays current encryption key. Informational display only. No selectable settings.
Indicates current features programmed into the radio as well as certain information required to add features to the radio. Informational display only. No user selectable settings.
COMMENT
89
Table 9-4: Information Display
PRS - NAME
XXXXXXXX
EEPR SIZ EEPROM Size
RAM SIZ RAM Size FLSH SIZ Flash Size RF BAND Frequency Band
HSD RATE Data Transfer Rate
PRS VER Software Version
DSP_ _RAM DSP Software Version
FLSH - VER
M/A-COM
(C) – 2004

9.17 DIGITAL VOICE OPERATION

Digital voice programmed systems have three (3) different voice modes: clear (analog), digital, and private (encrypted). The voice modes are programmed on a per-channel basis within each conventional system.

9.17.1 Clear Mode

The Clear Mode is a voice mode in which the radio transmits and receives only clear (analog) voice signals. These analog signals are non-digitized and non-encrypted. Clear mode transmissions can be monitored easily by unauthorized persons.
Personality Name
FLASH Software
r - released, 01A - revision state
Copyright
Channels programmed for clear operation cannot transmit or receive digital or private messages.

9.17.2 Digital Mode

The Digital Mode allows the radio to transmit and receive digitized voice signals. Digital signals provide improved weak signal performance and cannot be easily monitored with a standard receiver. Groups and channels programmed for digital operation transmit only digital signals. Individual phone calls (I-Calls) are answered back in the mode in which they were received assuming the call or hang time is still active. Individual phone, all call, and emergency calls are transmitted clear if the digital mode is disabled or inoperative.
If receiving an analog I-Call, the radio responds in the analog mode during the hang time. When using the *WHC* feature to respond to an I-Call (after the hang time has expired), the call is
transmitted in the mode defined by the system mode as programmed for the current system if the ID being called is not in the I-Call list. If the ID is in the I-Call list, then the call is transmitted as defined by the I­Call mode programmed in the list for that ID.
The overdial DTMF tones are not available while in the Digital Mode.
90

9.17.3 Private Mode

The Private Mode allows the radio to transmit encrypted messages and receive clear or private transmissions. The radio transmits private if the group/channel is programmed for private operation and forced operation is pre-programmed. If autoselect operation is pre-programmed and the radio is in the Private Mode, the radio transmits in the mode of the received call if the hang time is active. If no hang time is active, the radio transmits private.
Cryptographic keys are transferred to the radio using a cryptographic Keyloader. Up to seven (7) different cryptographic keys, numbered 1-7, can be transferred from a Keyloader and stored in the radio. An individual key is automatically selected on a per-group/channel basis according to the radio programming. Groups and channels within the digital system can be programmed for keys 1-7 (private). Up to 8 banks of 7 keys can be stored for private systems. The bank is specified per system.
When operating on a group or channel programmed for Private Mode, all transmissions are private transmissions and the radio receives clear and private signals. The status icon
Private Mode is enabled. If the selected group or channel is programmed for auto-select capability, the mode may be toggled between private and clear with the
Radios programmed for forced private operation do not allow a change of the transmit mode.
key, then following the selection mode rules.
is displayed when the
9.17.3.1 Displaying the Currently Used Cryptographic Key Number
To Display the Currently Used Cryptographic Key Number for either the system encryption key (for special call such as individual, phone, all, agency or fleet) or the group/channel key (for group or conventional calls), perform the following procedure:
1. Press the
2. Use the
3. Use the
group/channel key (
button.
or button to select "DISP KEY."
or button to toggle between displaying the system key (Figure 9-8) or the
Figure 9-9).
Figure 9-8: System Encryption Key Display
Figure 9-9: Group/Channel Encryption Key Display
9.17.3.2 Key Zero
All cryptographic keys can be zeroed (erased from radio memory) by pressing the button and while still pressing this button, press and hold the OPTION button. Press both buttons for 2 seconds. A series of beeps will begin at the start of the 2 second period and then switch to a solid tone after the keys have been zeroed. The display will indicate KEY ZERO.
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If the cryptographic key(s) are zeroed, one or more keys must be transferred from the Keyloader into the radio before private communications may continue.

9.17.4 Private Operation

9.17.4.1 Receiving an Encrypted Call
When receiving, the radio automatically switches between clear or private operation. If the transmission being received is an encrypted transmission, it will be decrypted, the
unsquelch and the message will be heard in the speaker. For this to occur the selected group or channel must be programmed for private operation and the correct cryptographic key must be loaded into the radio.
9.17.4.2 Transmitting an Encrypted Call
1. Select the desired group or channel.
icon is displayed, the receiver will
2. Place the radio in Private Mode by pressing
System radio, the enabled, the
key can be used to toggle the Private Mode ON/OFF. When Private Mode is
icon is displayed.
key, then follow the selection mode rules. On a
3. If the last state of the radio was Privat e Mode, the Private Mode will be enabled on power up. Also,
the Private Mode will be enabled if forced operation has been programmed in the radio. If a group or channel is not programmed for Private Mode operation, PVT DIS will be displayed if
an attempt is made to enable private transmit mode. It is not possible to operate on this group/channel in Private Mode.
If the radio does not have the correct encryption key loaded, NO KEY# will be displayed and the call will not be transmitted.
4. Continue with standard transmission procedures. A Private Mode access tone will be heard when the
PTT button is pressed.
9.17.4.3 Scanned Group Calls
Receiving a Scanned Group Call is the same as receiving a selected group call. During the scan hang time, if the radio was programmed for autoselect, it will transmit back in the same mode it received the call. For example, if a clear group is entered in the scan list, it will only receive clear calls. If the same group was available in private and entered in the scan list, it can receive clear and private calls, provided autoselect was programmed in the radio. The user can select transmitting on the scanned or selected group. If a group is entered in the scan list more than once and in different modes (clear, digital, private), only the first occurrence of the group will be used.
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Table 9-5: Transmit/Receive Mode Compatibility for Digital Voice Operation
GROUP/CHANNEL
PROGRAMMING
(TRANSMIT)
CLEAR Yes No No DIGITAL Yes Yes No PRIVATE Yes No Yes*
*assumes the proper cryptographic key is loaded
CLEAR
RECEIVE
DIGITAL
RECEIVE
PRIVATE RECEIVE
Conventional Digital or encrypted channels require Channel Guard on the channel to operate correctly. The voice coding technology embodied in this product is protected by intellectual property rights including patent rights, copyrights, and trade secrets of Digital Voice Systems, Inc. The user of this technology is explicitly prohibited from attempting to de-compile, reverse engineer, or to disassemble the Object Code, or in any other way convert the Object Code into a human-readable form.

9.18 GROUP CALLS IN P25 MODE

9.18.1 Transmitting a Group Call

1. Select the desired P25 system. (P25 icon will appear in display.)
2. Select the Talk Group/Conventional Channel. (Selected simultaneously using either the
system/group/channel knob or the group key.)
3. Press and hold the PTT.
4. When a grant tone is received (if enabled through programming) speak into the microphone.
5. Release PTT and wait for response.

9.18.2 Receiving a Group Call

1. The radio will unmute according to the squelch mode defined in the radio personality (monitor,
normal, selective).
2. Select the desired P25 system and Talk Group/Channel or turn scan on and make sure the desired
channel is in the scan list.
3. When the radio receives a P25 call, the radio will unmute and the channel name will appear in the
display.
4. Press the PTT button to respond.

9.19 INDIVIDUAL CALLS IN P25 MODE

9.19.1 Transmitting an Individual Call

1. Select the desired P25 system. (The P25 icon will appear in the display.)
2. Select the radio unit to call (callee source ID) fro m the pre-programmed individual call list or enter
the ID number on the radio keypad.
3. Press and hold the PTT.
4. When grant tone is received (if enabled through programming) speak into the microphone.
5. Release the PTT.

9.19.2 Receiving an Individual Call

1. The radio will unmute according to the squelch mode defined in the radio personality (monitor,
normal, selective).
2. Select the desired P25 system and Talk Group/Channel or turn scan on and make sure the desired
channel is in the scan list.
93
3. When the radio receives a P25 call, the radio will unmute and the ID of the transmitting radio will
appear in the display.
4. Press the PTT button to respond.
5. Unanswered calls will appear in the Who Has Called (WHC) list.

9.20 EMERGENCY GROUP CALLS IN P25 MODE

There is no method available for a system-wide Emergency clear. An emergency group call must be cleared on each individual radio.

9.20.1 Declaring an Emergency Group Call

1. Select the desired P25 system and Talk Group/Channel.
2. Press the red emergency button on the top of the radio. The radio will broadcast a short emergency
transmission with the emergency bit set. “TXEMER” will appear in the display of the transmitting radio.
3. While the PTT is NOT pressed, the mic will be open and the radio will broadcast an approximately 2
second transmission (e.g., background noise) which will be repeated at 10-30 second intervals.
4. Press the PTT to stop the short transmissions.
5. To send a voice message, press the PTT and speak into the microphone.
6. To clear an emergency from the transmitting radio, perform one of the following steps:
• Change systems.
• Change channels (if not prohibited by programming).
• Cycle power by turning radio off and then back on.
• Press the Clear and Emergency buttons simultaneously, providing the Clear Emergency option is
enabled in the Supervisory Options in the personality.

9.20.2 Receiving an Emergency Group Call

1. Select the desired P25 System and Talk Group/Channel.
2. When the radio detects an incoming Emergency Group Call, the radio will sound an alert tone and
“RXEMER” will appear in the display.
3. Voice or emergency transmissions will be heard at the receiving radio.
4. To clear an emergency from the receiving radio, perform one of the following steps:
• Change systems.
• Change channels (if not prohibited by programming).
94
• Cycle power by turning radio off and then back on.
• Press the Clear and Emergency buttons simultaneously, providing the Clear Emergency option is
enabled in the Supervisory Options in the personality.

10 CONVENTIONAL OPERATION

The radio functions in the conventional mode when using conventional communications channels (non­trunked).

10.1 CONTROLS

The radio features two rotary control knobs and an emergency button mounted on the top of the radio (
Figure 10-1). Push-To-Talk and option buttons are mounted on the side (Figure 10-1). The front mounted keypad has no buttons on the P7230 Select model, six buttons on the P7250 Scan model, and 15 buttons on the P7270 System Radio.
Figure 10-1: Top and Side View
95
b

10.1.1 Buttons and Knobs

This section describes the primary function of the button and knob controls. Other functions associated with these controls are detailed in later sections.
POWER ON-OFF VOLUME KNOB
CONTROL KNOB
EMERGENCY/ HOME BUTTON
Applies power to and adjusts the receiver’s volume. Rotating the control clockwise applies power to the radio. A single alert tone (if enabled through programming) indicates the radio is operational.
Rotating the control clockwise increases the volume level. Minimum volume levels may be programmed into the radio to prevent missed calls due to a low volume setting. While adjusting the volume the display will momentarily indicate the volume level (i.e. VOL=31). The volume range is from a minimum programmed level of zero (displayed as OFF in the display) up to 31, which is the loudest level.
Selects systems or group/channels (depending on programming). This is a 16­position rotary knob.
Note: A mechanical stop, which can limit the positions accessed, is shipped with the radio but must be installed. To install the mechanical stop, remove the channel knob, loosen the set screw on the channel knob metal base (using a
1.27mm hex wrench), and remove the channel knob metal base. Replace the 16 channel ring with the channel stop ring located at the desired channel. Reinstall the channel knob metal base, tighten the set screw, and reinstall the channel knob.
Automatically selects the pre-programmed Group/System by pressing and holding for a programmed duration. It can also by pressing and holding for a programmed duration. The button must be pre­programmed for either operation, but not both.
e used to declare an emergency
PTT BUTTON SIDE OPTION
BUTTON 2 SIDE OPTION
BUTTON 1
Push-To-Talk must be pressed before voice transmission begins.
Unsquelches the receiver and allows channel monitoring prior to transmission. Momentarily removes the Channel Guard decoding from the channel.
Activates one of a number of programmable software options selected during PC programming. Programmable options include hi/low power settings, keypad lock, LCD contrast, LCD and keypad back lighting.
96

10.1.2 Keypad (P7250 “Scan” and P7270 “System” Models Only)

The keys on the keypad have special functions and are labeled using a symbol or abbreviated word describing its primary function. Numeric entry is a secondary function of the keys. Each key is described in the following subsections.
Figure 10-2: P7250 “Scan” Radio Front Panel
KEY FUNCTION
Primary Function: Allows the user to scroll through available systems, groups, or channels,

depending on personality programming. Secondary Function
: Changes the selection for an item within a list.
Primary Function: Accesses the pre-stored menu.
 
Secondary Function key.
Adds/Deletes selected groups or channels from the Scan list of the currently selected system.
Turns the Scan operation ON and OFF.
Activates one of a number of programmable software options.
: Activates a selected item within a list. This is similar to an “Enter”
97
KEY FUNCTION

Figure 10-3: P7270 “System” Radio Front Panel
Primary Function: Allows the user to scroll through available systems, groups, or channels, depending on personality programming.
Secondary Function Primary Function: Accesses the pre-stored menu. Secondary Function
key.
: Changes the selection for an item within a list.
: Activates a selected item within a list. This is similar to an “Enter”
1-9, *, 0,
#
Selects a specific system. If the rotary knob is used to select the system and more than 16 systems are programmed in the radio, the
(groupings) of systems. These keys are used to place telephone interconnect and individual (unit-to-unit) calls. The
keys operate like a normal telephone keypad. Selects a specific group.
Turns the Scan operation ON and OFF.
Enables or disables Private Mode for the system/group/channel displayed.
Adds groups or channels from the currently selected system to the Scan list.
Deletes selected groups or channels of the currently selected system from the Scan list.
Places telephone interconnect calls.
Initiates individual calls.
key is used to select additional banks
98

10.2 DISPLAY

The radio display is made up of 3 lines (see Figure 10-4). Lines 1 and 2 contain eight alphanumeric character blocks and are used primarily to display system and group names. Line 1 also displays radio status messages. The 3rd line is used primarily to display radio status icons. All three lines are used to display menu options when in the menu mode. If programmed, the display backlighting will illuminate upon power up or when radio controls are operated.
Figure 10-4: Radio Display
99

10.2.1 Radio Status Icons

Status Icons indicate the various operating characteristics of the radio. The icons show operating modes and conditions and appear on the third line of the display (see approximate level only, based on battery voltage.
Table 10-1: Display Descriptions
Steady – “Busy” transmitting or receiving
Steady – special call mode (telephone)
Steady – during all radio transmissions
Steady – transmit at low power If icon is not visible – transmit at high power
Steady – battery charge indicator
Flashing – Low battery indicator
Table 10-1). The battery icon indicates
Steady – Indicates the current channel is set up as an analog channel.
Steady – group or channel in scan list
Steady – priority 2 group or channel
Steady – priority 1 group or channel
Steady (rotates clockwise) – scan mode enabled If icon is not visible – scan is disabled
Steady – Channel Guard enabled If icon is not visible – Channel Guard is disabled

10.3 TRI-COLOR LED

100
Figure 10-5: Tri-Color LED
The Tri-Color LED changes color to indicate radio status and is visible from both the front and top of the radio (see
Figure 10-5). The three colors of the LED and the status they represent are:
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