EFJohnson 7780 User Manual

PRELIMINARY SERVICE

Series

7780

778x (800 MHz)

SMARTNET™/SmartZone®/Conventional

7.5VDC,1and3Watts 806-824 MHz Transmit 851-870 MHz Receive Part No. 242-778x-50x

SMARTNET™/SMARTZONE® PORTABLE

MANUAL

Full Keypad (15-Key) Model Limited Keypad (3-Key) Model

First Printing November 1999

7780-SERIES

™

SMARTNET /SMARTZONE /CONVENTIONAL

FM TWO-WAY

PORTABLE RADIO

7.5 VDC 806-824 MHz Transmit, 851-870 MHz Receive 1-Watt (Low Power), 3-Watts (High Power) Part No. 242-778x-50x

E.F. Johnson Company, which was founded in 1923, designs, manufactures, and markets radio communication products, systems, and services worldwide. E.F. Johnson produces equipment for land mobile radio and mobiletelephone services which include business, industrial, government, public safety, and personal users.

Viking Head/EFJohnson logo, Call Guard®, PCTrunk™, and PCTune™ are trademarks of the E.F. Johnson Company. SMARTNET™, SmartZone®, Call Alert™, Enhanced Private Conversation™, and Private Conversation II™ are trademarks of Motorola, Inc. All other company a nd/or product names used in this manual are trademarks and/or registered trademarks of their respective manufacturer.

Information in this manual is subject to change without notice.

TABLE O F CONTENTS

TABLE OF CONTENTS

1 GENERAL INFORMATION

1.1 SCOPE OF MANUAL

1.2 EQUIPMENT DESCRIPTION

Introduction............................. 1-1

OperatingProtocols ...................... 1-1

IntrinsicallySafeModels.................. 1-1

Systems,Channels,andZones.............. 1-1

NPSPACModels ........................ 1-2

Programming............................ 1-2

TransceiverAlignment.................... 1-2

1.3 PART NUMBER BREAKDOWN

1.4 TRANSCEIVER IDENTIFICATION

1.5 ACCESSORIES

1.6 FACTORY CUSTOMER SERVICE

1.7 FACTORY RETURNS

1.8 REPLACEMENT PARTS

1.9 INTERNET HOME PAGE

1.10 INTRINSICALLY SAFE INFORMATION

Introduction............................. 1-4

Definitions.............................. 1-4

PossibleIgnitionSources.................. 1-5

Intrinsically Safe and Nonincendive Ratings . . . 1-5 Classification of Hazardous Areas

andAtmospheres ...................... 1-5

1.11 ACCESSING PC BOARDS

Introduction............................. 1-6

RemovingTransceiverCase................ 1-6

UnpluggingFlexCables................... 1-6

RemovingRFUnit....................... 1-7

RemovingLogicUnit..................... 1-7

7780 SPECIFICATIONS

....................1-1

.............1-1

...........1-2

.........1-2

.........................1-2

.........1-2

....................1-3

.................1-4

...............1-6

..................1-8

2 TRANSCEIVER OPERATION

2.1 FEATURES

GeneralFeatures......................... 2-1

ConventionalFeatures .................... 2-1

SMARTNET™IIFeatures................. 2-1

SmartZone®Features..................... 2-1

Limited/Enhanced Keypad Features. . . . . . . . . . 2-1

2.2 CONTROLS AND DISPLAY

TopPanelControls....................... 2-1

TopPanelIndicators...................... 2-2

SideControls............................ 2-2

Front Panel Keys (Limited Keypad Model) . . . . 2-2

Front Panel Keys (Full Keypad Model) . . . . . . . 2-3

Display................................ 2-3

2.3 GENERAL OPERATION

Introduction............................. 2-4

Turning Power On and Setting Volume . . . . . . . 2-4

Backlight............................... 2-4

OptionSwitches......................... 2-4

.............................2-1

..............2-1

.................2-4

....1-4

KeypadLock............................2-4

LowBatteryIndication....................2-5

ChannelandZoneSelection ................2-5

HomeZone .............................2-5

Time-OutTimer..........................2-5

ToneEnable/Disable......................2-6

Scanning ...............................2-6

Conventional and SMARTNET/Smartzone

Operation.............................2-7

2.4 CONVENTIONAL FEATURES

Introduction.............................2-8

DisplayModeSelection....................2-8

MonitoringBeforeTransmitting.............2-8

MonitorMode...........................2-9

BusyChannelLockout ....................2-9

CallGuardSquelch.......................2-9

PenaltyTimer...........................2-10

ConversationTimer......................2-10

RepeaterTalk-Around....................2-10

PowerOutputSelect .....................2-10

ConventionalModeScanning..............2-10

PriorityChannelSampling ................2-11

StandardConventionalCalls...............2-12

DTMF/ANISignaling....................2-12

2.5 SMARTNET/SMARTZONE FEATURES

Introduction............................2-13

ViewingUnitID ........................2-13

StandardGroupCalls.....................2-13

Enhanced Private Conversation Calls . . . . . . . . 2-13

PrivateConversationIICalls...............2-15

TelephoneCalls.........................2-16

CallAlert .............................2-17

Messaging.............................2-18

Sending Status Conditions . . . . . . . . . . . . . . . . . 2-18

EmergencyAlarmandCall................2-18

FailsoftOperation.......................2-19

SMARTNET/SmartZoneScanning..........2-19

DynamicRegrouping.....................2-19

SmartZoneFeatures......................2-19

2.6 SUPERVISORY TONES

2.7 KEYPAD PROGRAMMING

Introduction............................2-21

MenuDescription .......................2-21

ZoneChangeParameter...................2-21

ChannelChangeParameter................2-22

SystemParameters.......................2-22

ChannelParameters......................2-22

............2-8

...............2-20

.............2-21

3 TRANSCEIVER PROGRAMMING

3.1 GENERAL

ProgrammingSetup.......................3-1

ComputerDescription.....................3-1

.............................3-1

..2-13

November 1999 Part No. 001-7780-500

TABLE OF CONTENTS (CONT’D)

TABLE OF CONTENTS

PCTrunkSoftwareInstallation.............. 3-1

Connecting RPI To Computer and Transceiver . 3-2

Starting and Exiting . . . . . . . . . . . . . . . . . . . . . . 3-2

ProgrammingFileTypes.................. 3-2

HelpFiles.............................. 3-2

ScreenTypes ........................... 3-2

FileSizeIndication....................... 3-3

CreatingandDisplayingSystems............ 3-3

3.2 PROGRAMMING PROCEDURE

Preliminary............................. 3-3

ProgrammingRadioWideParameters........ 3-4

Programming Conventional Channels . . . . . . . . 3-4

Programming SMARTNET/SmartZone Systems 3-4

Programming Radio (Downloading File). . . . . . 3-4

3.3 MENU COMMANDS

FileMenu.............................. 3-4

RadioTypeMenu........................ 3-5

DownloadMenu......................... 3-5

UploadMenu........................... 3-5

SystemsMenu .......................... 3-5

WindowMenu.......................... 3-5

HelpMenu............................. 3-6

3.4 RADIO-WIDE PARAMETER SCREENS

Introduction ............................ 3-6

Radio-WideGeneralscreen................ 3-6

Radio-Wide Conventional Screen . . . . . . . . . . . 3-8

Radio-Wide SMARTNET/SmartZone Screen . . 3-8

Radio-Wide Portable Options Screen. . . . . . . . . 3-9

3.5 PROGRAMMING CONVENTIONAL SYSTEMS AND CHANNELS

Introduction ............................ 3-9

Conventional System General Screen . . . . . . . . 3-9

Setting Up Conventional Channels . . . . . . . . . 3-11

Conventional Channel Screen Parameters . . . . 3-12

3.6 PROGRAMMING SMARTNET/SMARTZONE SYSTEMS AND CHANNELS

Introduction ........................... 3-13

SMARTNET/SmartZone System Screens

GeneralScreen....................... 3-14

OtherID’sScreen..................... 3-15

InterconnectScreen................... 3-15

TalkGroupsScreen................... 3-16

EmergencySettingsScreen............. 3-16

ListsScreens......................... 3-17

Setting Up SMARTNET/SmartZone Channels 3-20 SMARTNET/SmartZone Channel Screen

Parameters.......................... 3-20

.....................3-4

......................3-9

..........3-3

....3-6

...........3-13

4 CIRCUIT DESCRIPTION

4.1 POWER SWITCHING AND REGULATION

PowerSwitching......................... 4-1

5-VoltRegulators(IC401,IC402)........... 4-1

.4-1

4.2 SYNTHESIZER DESCRIPTION

Introduction.............................4-1

VCO(IC3),Buffers(Q10-Q12).............4-1

VCOAndTCXOModulation...............4-2

SynthesizerChip(IC1)....................4-2

LockDetect(Q13)........................4-2

Charge Pump (Q1, Q2), Loop Filter . . . . . . . . . . 4-2

4.3 RECEIVER CIRCUIT DESCRIPTION

RFAmplifier(Q1),FirstMixer(Q2).........4-3

IF Amplifier (Q2), Limiter/Detector (IC3) . . . . . 4-3

SquelchCircuit(IC4A/B,IC5A).............4-4

4.4 TRANSMITTER DESCRIPTION

Amplifier(Q9),Driver(Q8)................4-4

Antenna Switch and Low-Pass Filter . . . . . . . . . 4-4

PowerControl(IC2A/B)...................4-5

4.5 CONTROL LOGIC AND DISPLAY

ControlLogic ...........................4-5

DisplayAssemblyDescription..............4-5

4.6 RECEIVE AUDIO PROCESSING

BandPass Filter (IC101) . . . . . . . . . . . . . . . . . . . 4-5

Expander(IC208)........................4-8

AudioAmplifier(IC104-IC106).............4-8

4.7 RECEIVE AND TRANSMIT DATA PROCESSING

Receive Data Filter/Detector. . . . . . . . . . . . . . . . 4-8

Transmit Data Filter (IC206B/IC206A) . . . . . . . 4-9

4.8 TRANSMIT AUDIO PROCESSING

Gate (IC204), High-Pass Filter (IC202) . . . . . . . 4-9

Limiter(IC202B).........................4-9

Low-PassFilter(IC205A/B)...............4-10

4.9 SMARTNET DATA PROCESSING

........................4-8

...........4-1

......4-3

..........4-4

........4-5

.........4-5

........4-9

.......4-10

5 BATTERY PACK AND CHARGER

INFORMATION

5.1 BATTERY PACK

General ................................5-1

BatteryCare.............................5-1

5.2 RAPID CHARGER

.......................5-1

......................5-1

6 ALIGNMENT PROCEDURE AND

PERFORMANCE TESTS

6.1 GENERAL

Introduction.............................6-1

TestSetup..............................6-1

TuneSoftware...........................6-2

PreliminarySetup........................6-3

MainPCTuneScreen......................6-3

RemovingTransceiverCover...............6-4

6.2 TRANSMIT FREQUENCY AND POWER

FrequencyAdjustment ....................6-4

PowerOutputAdjustment..................6-4

.............................6-1

..6-4

November 1999

iii

Part No. 001-7780-500

TABLE O F CONTENTS

TABLE OF CONTENTS (CONT’D)

6.3 MODULATION BALANCE

6.4 AUDIO DEVIATION

6.5 DATA DEVIATION

6.6 SQUELCH ADJUST

6.7 RSSI ADJUST

6.8 RECEIVER PERFORMANCE TESTS

PreliminarySetup........................ 6-6

SINADSensitivity ....................... 6-6

SquelchSensitivity....................... 6-6

AudioPowerAndDistortion............... 6-6

Receiver Current Drain . . . . . . . . . . . . . . . . . . . . 6-6

6.9 TRANSMITTER PERFORMANCE TESTS

PowerOutput ........................... 6-7

TransmitFrequency ...................... 6-7

TransmitModulation ..................... 6-7

TransmitterCurrentDrain.................. 6-7

......................6-5

.......................6-5

..........................6-5

................6-4

.....................6-5

......6-6

7 PARTS LIST

ChassisParts............................ 7-1

JackAssembly .......................... 7-1

DisplayAssembly........................ 7-1

3-KeyAssembly......................... 7-2

10-KeyAssembly........................ 7-2

IFAssembly............................ 7-3

PLLAssembly .......................... 7-4

RFUnit................................ 7-4

LogicUnit.............................. 7-8

ExplodedViews..................7-13to7-16

LIST OF TABLES

1-1 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1-2 MaterialClassification ....................1-6

1-3 AreaClassification .......................1-6

2-1 OptionSwitchFunctions ..................2-5

3-1 Call Guard (CTCSS/DCS) Codes and Tones . . 3-22

4-1 Microprocessor IC 306 Pin Descriptions . . . . . . . 4-6

..6-7

LIST OF FIGURES

1-1 RemovingCaseScrews................... 1-6

2-1 LimitedKeypadModel................... 2-2

2-2 FullKeypadModel ...................... 2-2

2-3 Display................................ 2-3

2-4 Keypad Programming Menu Flowchart . . . . . 2-21

3-1 ProgrammingSetup...................... 3-1

3-2 RPI-TransceiverCableSchematic.......... 3-2

3-3 ConventionalChannelScreen............. 3-12

3-4 SMARTNET/SmartZone Channel Screen. . . . 3-21

4-1 Limiter/Mixer/DetectorIC3................ 4-3

6-1 AlignmentSetupDiagram................. 6-1

6-2 PCTuneMainScreen..................... 6-3

6-3 ConnectingDCPower.................... 6-4

8 SCHEMATIC DIAGRAMS AND

COMPONENT LAYOUTS

TransceiverBlockDiagram................ 8-3

Schematic Diagrams

RFBoard..............................8-5

LogicBoard...........................8-7

IDisplayBoard.........................8-9

10-KeyBoard.........................8-11

3-KeyBoard..........................8-13

PC Board Layouts

PLLBoard ............................8-1

IIFBoard..............................8-2

RFBoard..............................8-4

LogicBoard...........................8-6

DisplayBoard..........................8-8

10-KeyBoard.........................8-10

3-KeyBoard..........................8-12

November 1999 Part No. 001-7780-500

SECTION 1 GENERAL INFORMATION

GENERAL INFORMATION

1.1 SCOPE OF MANUAL

This service manual contains operating, programming, alignment, and service information for the E.F. Johnson 7780 800 MHz portable transceiver.

1.2 EQUIPMENT DESCRIPTION

1.2.1 INTRODUCTION

The 7780 800 MHz portable transceiver is available in limited keypad (3-key) and full keypad (15key) models. In addition, standard and intrinsically safe versions are available (see Section 1.2.3). With all versions, up to 16 zones can be programmed, and each zone can contain up to 16 channels resulting in up to 256 total channels. The rotary switch on the top panel provides channel select, and an option switch provides zone select if applicable.

The 7780 is an 800 MHz transceiver which operates on the 920 channels from 806-824 MHz (mobile transmit). The receive channels are 45 MHz above these frequencies from 851-869 MHz. All models can be programmed for both narrow and wide band operation. With narrow band operation, the channel spacing is 12.5 kHz and maximum deviation 2.5 kHz; with wideband operation, the channel spacing is 25 kHz and maximum deviation is 5 kHz. On NPSPAC channels, maximum deviation is 4 kHz (see Section 1.2.5).

models is also used to service these models. Refer to Section 1.10 for more information on the intrinsically safe rating and additional requirements for servicing intrinsically safe models.

1.2.4 SYSTEMS, CHANNELS, AND ZONE S

A zone and channel are selected to place and receive calls. The following describes the relationship between systems, channels, and zones.

Systems

A system as used with this transceiver is a collection of channels (talk groups) belonging to the same repeater site. A system defines all the parameters and protocol definitions required to access a site. Up to 1 conventional system and 15 SmartNet/SmartZone systems can be programmed (16 total). Systems are used for programming purposes only and are not selectable by the user.

Channels

A channel selects a radio channel or talk group in a system as follows:

Conventional Mode - A channel selects a specific radio channel, Call Guard (CTCSS/DCS) squelch coding, and other parameters unique to that channel.

1.2.2 OPERATING PROTOCOLS

The 7780 operates on analog channels utilizing

the following operating protocols:

• Conventional (non trunked)

• SMARTNET II/SmartZone (trunked)

1.2.3 INTRINSICALLY SAFE MODELS

NOTE: Contact your sales representative to determine the availability of intrinsically safe models.

The intrinsically safe versions of the 7780 (see Section 1.3) meet Factory Mutual standards for operation in certain flammable atmospheres. Basically , the same service information used to service standard

SmartNet/SmartZone Mode - A channel selects a specific talk group, announcement group, emergency group, and other parameters unique to that channel.

As previously described, a maximum of up to 256 channels can be programmed with the preceding modes. The conventional system can be programmed with up to 256 channels, and each SmartNet/SmartZone system can be programmed with up to 256 talk groups (channels).

Therefore it is theoretically possible to program any combination of these systems that produces up to 256 total channels. However, the maximum number may be limited by the available memory. For example, since more memory is required to program a SmartNet system than a conventional system, the total number

November 1999

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GENERAL INFORMATION

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1.6 FACTORY CUSTOMER SERVICE

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November 1999 Part No. 001-7780-500

1-2

GENERAL INFORMATION

Customer Service Department can be reached using one of the following telephone numbers:

Toll-Free: (800) 328-3911

(From within continental United States only)

International: (507) 835-6911

FAX: (507) 835-6969

E-Mail: First Initial/Last Name@efjohnson.com

(You need to know the name of the person you want to reach. Example: jsmith@efjohnson.com)

NOTE: Emergency 24-hour technical support is also available at the 800 and precedingnumbers during off hours, holidays, and weekends.

When your call is answered at the E.F. Johnson Company, you will hear a brief message informing you of numbers that can be entered to reach various departments. This number may be entered during or after the message using a tone-type telephone. If you have a pulse-type telephone, wait until the message is finishedandanoperatorwillcomeonthelinetoassist you. When you enter some numbers, another number is requested to further categorize the type of information you need.

You may also contact the Customer Service Department by mail. Please include all information that may be helpful in solving your problem. The mailing address is as follows:

E.F. Johnson Company

Customer Service Department

299 Johnson Avenue

P.O. Box 1249

Waseca, MN 56093-0514

Table 1-1 Accessories

Accessory Part No.

Battery Pack, NiMH 1400 mAH

Standard 587-8150-135 Intrinsically safe [1] 587-8150-136

Antenna, flexible half-wave 800 MHz [1] 585-5000-053 Antenna, 800 MHz 501-8100-001 Speaker-microphone, w/360° swiv clip [1] 589-0015-040 Speaker-microphone, heavy duty 589-0015-047 Earphone adapter [1] 585-5000-051 Earphone, s tandard (for -040/-051) [1] 589-9003-004 Earphone, h eavy duty w/coil cord 250-0881-003

Carrying Accessories

D-swivel for back of transceiver 250-5810-123 Leather case with D-swivel 585-5000-052 Leather belt loop with D-swivel 023-8790-130 Belt Clip, plastic spring loaded [1] 585-5000-054

Battery Chargers

Single-unit rapid base 585-5020-020 120 VAC power supply for -020 base 585-5020-021 230 VAC power supply for -020 base 585-5020-022

Programming Accessories

Remote Programming Interface (RPI) 023-9800-000 Cable, RPI to transceiver 597-2002-123 Cable, RPI - computer, 6 ft.

(DB9 F - DB9 M) PCTrunk programming software, 3.5” 023-9998-453 PCTune tuning software, 3.5” diskette

SMA to BNC M-F antenna jack adapter 515-3102-060 [1] Factory Mutual approved for use on intrinsically safe

models.

597-5900-002

Contact Cust Serv

1.7 FACTORY RETURNS

Repair service is normally available through local authorized EFJohnson Land Mobile Radio Service Centers. If local service is not available, the equipment canbereturnedtothefactoryforrepair.However,itis recommended that you contact the Customer Service Department before returning equipment because a service representative may be able to suggest a solution to the problem so that return of the equipment would not be necessary.

Be sure to fill out a Factory Repair Request Form #271 for each unit to be repaired, whether it is in or out of warranty. These forms are available free of charge by calling Customer Service (see Section 1.6) or by requesting them when you send a unit in for repair. Clearly describe the difficulty experienced in the space provided and also note any prior physical damage to the equipment. Then include a form in the shipping container with each unit. Your telephone number and contact name are important because there

November 1999

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Part No. 001-7780-500

GENERAL INFORMATION

are times when the technicians have specific questions that need to be answered in order to completely identify and repair a problem.

When returning equipment for repair, it is also a good idea to use a PO number or some other reference number on your paperwork in case you need to call the repair lab about your unit. These numbers are referenced on the repair order and it makes it easier and faster to locate your unit in the lab.

Return Authorization (RA) numbers are not necessary unless you have been given one by the Field Service Department. RA numbers are required for exchange units or if the Field Service Department wants to be aware of a specific problem. If you have been given an RA number, reference this number on the Factory Repair Request Form sent with the unit. The repair lab will then contact the Field Service Department when the unit arrives.

1.8 REPLACEMENT PARTS

Replacement parts can be ordered directly from the Service Parts Department. To order parts by phone, dial the toll-free number as described in Section 1.6. When ordering, please supply the part number and quantity of each part ordered. EFJohnson dealers also need to give their account number.If there is uncertainty about the part number, include the designator (C512, for example) and the model number of the equipment the part is from.

You may also send your order by mail or FAX. The mailing address is as follows and the FAX number is shown i n Section 1.6.

1.10 INTRINSICALLY SAFE INFORMATION

NOTE: Contact your sales representativeto determine the availability of intrinsically safe models.

1.10.1 INTRODUCTION

Intrinsically safe 7780 transceivers have been approved by the Factory Mutual Research Corporation for operation in certain flammable atmospheres. The specific atmospheres in which operation is approved are shown in Section 1.10.5 and also on the label on the back cover of the transceiver.

WARNING

When servicing an intrinsically safe transceiver, these rules must be followed to maintain intrinsic safety:

• Service can be provided only by the factory or by

service centers specifically authorized by the Factory Mutual Research Corporation to service E.F. Johnson intrinsicallysafe transceivers.Contact Factory Mutual at the following address for information concerning their auditing procedure. Contact the E.F. Johnson Customer Service Department as described in Section 1.6 if you have questions.

Factory Mutual Research Corporation 1151 Boston-Providence Turnpike P.O. Box 9102 Norwood, Massachusetts 02062 Phone: (617) 762-4300

• Replace the battery pack only with Intrinsically

Safe Battery Pack, Part No. 587-8150-136.

E.F. Johnson Company Service Parts Department 299 Johnson Avenue P.O. Box 1249 Wa seca, MN 56093-0514

1.9 INTERNET HOME PAGE

EFJohnson has a site on the WorldWide Web that can be accessed for information on the company and such things as products, systems, and regulations. The address is http://www.efjohnson.com.

November 1999 Part No. 001-7780-500

• Do not make any modifications to the circuitry.

• When replacing a part, use only the exact replace-

ment part listed in the service manual parts list.

• Do not install any accessory that is not specifically

approved for use with intrinsically safe 7780 models.

1.10.2 DEFINITIONS

Intrinsically Safe - This is a fire rating given to these transceivers by the Factory Mutual Research Corpora-

1-4

GENERAL INFORMATION

tion.When electrical equipment is given thisrating, the equipment is considered incapable of releasing sufficient electrical and thermal energy under normal operation or specified fault conditions per the testing standard to cause ignition of a specific flammable or combustible atmosphere in its most easily ignited concentration. In other words, this transceiver should not cause a fire or explosion when used in certain flammable atmospheres.

Fault - A defect or electrical breakdown of any component, spacing, or insulation which alone or in combinationwith otherfaults mayadverselyaffect theelectrical orthermalcharacteristicsofthe intrinsicallysafe circuit (for example, a s horted transistor).

1.10.3 POSSIBLE IGNITION SOURCES

When a transceiver is checked by Factory Mutual, possible sources of ignition are checked. These sources may be electrical (spark) or thermal (heat). The following could be sources of spark ignition:

• Dischargeof a capacitive circuit by a fault such as a

short circuit.

• Interruption of an inductive circuit.

• Intermittent making or breaking of a resistive

circuit.

• Hot-wire fusing.

ignition of a particular atmosphere if two of the faults specified in the testing procedure occur. In other words, it must be able to withstand two simultaneous unrelated breakdowns without causing ignition. To receive a nonincendive rating, the transceiver needs to withstand only a single fault without causing ignition of a particular atmosphere.

1.10.5 CLASSIFICATION OF HAZARDOUS AREAS AND ATMOSPHERES

Introduction

This transceiver has been submitted for approval to operate in the following hazardous atmospheres and areas. Contact your sales representative or refer to the label on the back of the transceiver to determine the specificatmospheres and areas for which approval was obtained.

Intrinsically Safe - Class I, II, and III, Division 1, Groups C, D, E, F, and G.

Nonincendive - Class I, Division 2, Groups A, B, C, and D.

Temperature Code - T3C

The meanings of these Class, Division, and Group designations are as follows.

The following could be sources of thermal

ignition:

• Heating of a small-gauge wire or PC board trace.

• High surface temperature of components.

1.10.4 INTRINSICALLY SAFE AND NONINCENDIVE RATINGS

This transceiver is rated intrinsically safe for some types of hazards and nonincendive for other types of hazards. An intrinsically safe rating applies to operation in Division 1 areas, and a nonincendive rating applies to operation in Division 2 areas (see next section). The difference between these ratings is as follows:

The intrinsically safe rating is a higher rating because more severe conditions must be met. To be approved for this rating, the transceiver must not cause

Atmosphere Classification (Class/Group)

For the purposes of testing and approval, various atmospheric mixtures have been grouped on the basis of their hazardous characteristics. Equipment is approved for a class of material and also for the specific gas, vapor, or dust in that class. Class I m aterials include gases and vapors, and Class II materials include combustible dusts. The various classes and some specific groups of gases in each are shown in Table 1-2.

Area Classification (Division)

Areas are either Division 1, 2, or 3 as shown in Table 1-3. Since a Division 1 area is considered the most hazardous, a transceiver approved for a specific Division 1 area can also be used in the same Division 2 Class/Group.

November 1999

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Part No. 001-7780-500

GENERAL INFORMATION

Table 1-2 Material Classification

Typical Hazard Group Class

Acetylene A I Hydrogen B I Ethylene, ethyl ether, cyclopropane C I Gasoline, naphtha, butane, propane,

alcohol, acetone, benzol, natural gas Metal dust including aluminum, mag-

nesium, and their alloys Carbon black, coal, or coke dust F II Flour, starch, or grain dusts G II Ignitable fibers/flyings such as rayon

or cotton

EII

-III

Table 1-3 Area Classification

Division Area

1 An area where there is or could be an explosive

atmosphere most of the time in normal operation

2 An area where an explosive atmosphere exists

only as a result of a fault (something going wrong)

1. If you have not already done so, remove the battery by pressing the r elease button upward and then sliding it off the transceiver. If the belt clip is mounted on the back, it must also be removed.

2. Remove the three screws in the back and two in the bottomend that are indicated in Figure1-1. Slidethe case off.

3. Removing the two screws in the end also allows the front panel to be removed. Simply lift it outward if desired. If you do not want to remove the front panel, temporarily replace one of the end screws.

CAUTION

Excessive flexing of the ribbon cables may result in broken traces.

REMOVE

THESE

SCREWS

1.11 ACCESSING P C BOARDS

1.11.1 INTRODUCTION

The RF unit is located under the back cover and the logic unit is located under the front cover. These boards connect together using a 30-pin connector on the bottom side. Since both boards have numerous parts on the bottom (hidden) side, the board may need to be removed to replace components. To operate the transceiver with the RF unit removed, a special extension test cable is required.

Also inside the transceiver are display and keypad boards. These boards are mounted to the inside of the front cover. Proceed as follows t o remove the RF and logic unit board from the transceiver.

1.11.2 REMOVING TRANSCEIVER CASE

To access the internal parts in the transceiver, the plastic case must first be removed. Proceed as follows:

Figure 1-1 Removing Case Screws

1.11.3 UNPLUGGING FLEX CABLES

The flex cable to the front panel and also the accessory jack and PTT switch flex cables to the logic board are inserted into a locking-type connector. To release the cable so that it can be removed from the connector, the locking tangs must be pulled out as shown in the following illustration.

November 1999 Part No. 001-7780-500

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GENERAL INFORMATION

LOCK

UNLOCK

1.11.4 REMOVING RF UNIT

1. Remove the five screws attaching the shield to the PC board.

2. Remove the two screws securing the RF power module to the chassis. Then remove the four standoffs attaching the RF board to the chassis.

3. Unsolder the antenna connector from the PC board by removing the solder at the locationsshown in the following illustration.

SOLDER

WIRE IN

PC BD

ANTENNA

CONNECTOR

4. Remove the PC board by lifting i t upward. The RFto-logic board connector under the IF board must unplug, so some resistance may be encountered. Do not pull on the IF or PLL board assemblies because they can be easily damaged.

1.11.5 REMOVING LOGIC UNIT

1. Remove the top panel knobs. Then remove the spanner nuts on the quick select and on-off/volume switches. Remove the plastic top panel.

2. Unplug the flex cables from the front panel, accessory connector, and PTT switch as described in Section 1.11.3.

3. Unsolder the DC power flex circuit attached to the logic unit near the accessory flex circuit connector.

4. Remove the four screws attaching the logic unit to the chassis.

5. Remove the logic unit by carefully lifting it outward.TheRF-to-logicboard connector underthe IF board must unplug, so some resistance may be encountered. There is a pry hole (indicated by an arrow) on the lower left edge of the PC board.

1-7

November 1999

Part No. 001-7780-500

GENERAL INFORMATION

7780 SPECIFICATIONS

The following are general specifications intended for use in testing and servicing the transceiver. For current advertised specifications, refer to the 7780 product information sheet available from your E.F. Johnson sales representative. Specifications are subject to change without notice.

GENERAL

Operating Mode SMARTNET/SmartZone (trunked) and conventional (non-trunked) Frequency Range 806-824 MHz transmit (SMARTNET/SmartZone/conventional standard)

851-869 MHz transmit (conventional talk-around)

851-869 MHz receive Zones Programmable Up to 16 Channels Programmable Up to 16 per zone (256 total) Transmit/Receive Separation 45 MHz standard, 0 MHz conventional talk-around Channel Spacing 12.5 kHz - 2.5 kHz maximum deviation

25 kHz - 5 kHz max deviation standard, 4 kHz NPSPAC Frequency Stability (tx and rx) 1.5 PPM –22° to +140° F (–30° to +60° C) Dimensions(withbatteryandcontrols) 6.5”Hx2.2”Wx1.2”D

166mmHx56mmWx30mmD Weight (with battery) 18 oz. (515 g) Power Source 7.5 VDC nickel metal-hydride (NiMH) battery pack, 1300 maH Typical Battery Life (5-5-90) 7.5 hours (high power), 8.6 hours (low power) Compliance FC C parts 15 and 90 Circuit Protection 3-ampere fuse

RECEIVER

Sensitivity 0.35 µV (12 dB SINAD) Selectivity –65 dB at 25 kHz Spurious and Image Rejection –60 dB at 25 kHz Intermodulation –65 dB at 25 kHz Audio Output Power Internal Speaker - 0.5 watt (16-ohm load)

External - 1.5 V rms (680-ohm load) Audio Distortion Less than 5% at rated power (0.5 watt) Audio Response +1, –3 dB at 6 dB per octave de-emphasis characteristic Channel Spread 18 MHz Current Drain Standby(squelched) - 92 mA maximum

Rated Audio Output - 300 mA maximum

TRANSMITTER

High RF Power Output

Standard Models 3.0 watts (standard mode)

2.5 watts (conventional talk-around mode)

Intrinsically Safe Models 2.0 watts at less than 1.55 A (standard mode)

1.8 watt at less than 1.60 A (talk-around mode) Low RF Power Output 1.0 watt (all models and modes) Spurious and Harmonic –60 dB at 25 kHz FM Hum and Noise –40 dB at 25 kHz Audio Distortion 5% maximum at 1 kHz Audio Frequency Response +1, –3 dB from a 6 dB per octave pre-emphasis characteristic Audio Modulation 11K0F3E, 16K0F3E, 14K0F3E Channel Spread 18 MHz (no degradation); 63 MHz (talk-around) Current Drain (maximum) Low Power - 1.3 ampere

High Power Standard Models -1.75 ampere (2.0 ampere talk-around) Load Impedance 50 ohms Duty Cycle (6-6-48 seconds) 5% (Transmit-Receive-Standby)

November 1999 Part No. 001-7780-500

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TRANSCEIVER OPERATION

SECTION 2 TRANSCEIVER OPERATION

2.1 FEATURES

2.1.1 GENERAL FEATURES

• 16 zones with home zone select

• 16 channels per zone (256 channels total)

• Radio-wide scan

• Time-out timer

• LCD 8-character alphanumeric display with 12

status annunciators

2.1.2 CONVENTIONAL FEATURES

• Channel scan with three user programmable scan

lists

• Priority channel sampling

• Busy channel lockout (transmit disable on busy)

• Monitor mode

• Call Guard® (CTCSS/DCS) squelch control

• Penalty timer

• Conversation timer

• Repeater talk-around

• DTMF/ANI signaling

• User selectable power output

• Selectable channel display mode

2.1.3 SMARTNET™ II FEATURES

• Group, Enhanced Private Conversation™, Private

Conversation II™, and telephone calls

• Call Alert™ (paging)

• Emergency calls

• Messaging

• Priority monitor scanning

• Failsoft operation

• Dynamic regrouping

able with the enhanced keypad model are also available with the limited keypad model. The features not available with the limited (3-key) model are as follows:

• Since the DTMF keys are not available, it is not

possible to dial telephone numbers or manually send DTMF tones. However, telephone calls can still be placed using prestored numbers.

• Withconventional standardscanning,only onescan

list is available and it is not user programmable.

• With SMARTNET/SmartZone operation, direct

entry of unit I D numbers is not available when making private calls or sending pages. However, these calls can still be made by recalling the ID from a prestored list.

2.2 CONTROLS AND DISPLAY

Ant

enna Jack

Transmitter

Keyed

Channel Select Sw

Receive Signal

Detected

BATT

On-Off/Vol

OFF/VOL

Low

Battery

ume

2.1.4 SMARTZONE® FEATURES

• Site trunking

• Site search

• Site lock/unlock

2.1.5 LIMITED/ENHANCED KEYPAD FEATURES

Limited (3-key) and Enhanced (15-key) models

of this transceiver are available. Most features avail-

2.2.1 TOP PANEL CONTROLS

On-Off Volume - Turning this knob clockwise turns power on and sets the volume level. Turning it counterclockwise to the detent turns power off.

Channel Select Switch - Selectsupto16preprogrammed channels. The selected channel is also indicatedinthedisplay.

Antenna Jack - Connection point for the antenna.

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Part No. 001-7780-500

TRANSCEIVER OPERATION

ENT

Figure 2-1 Limited Keypad Model

2.2.2 TOP PANEL INDICATORS

TX Indicator (Red) - Indicates when the transmitter is keyed.

RX Indicator (Green) - Indicates that the channel may be busy because a carrier is being detected.

Low-BatteryIndicator (Amber) -

Indicates that the battery charge is getting low and recharging will soon be required.

AUX

PTT

2.2.3 SIDE CONTROLS

CLR

ENT

Figure 2-2 Full Keypad Model

FCN (Function) - This is a dealer programmable switch that can control various functions (see Section

2.3.4).

Battery Release Button - Pushing this spring-loaded button upward releases the battery so that it can slide off the radio for recharging or replacement. Turn power off before removing the battery.

AccessoryConnector (not shown) - This connector is on the opposite side of the transceiver,and it is the connection point for optional accessories such as a speaker-microphone.

AUX (Auxiliary) - This is a dealer programmable switch that can control various functions (see Section

2.3.4). With the limited keypad

FCN

(3-key) version, it is also the CLR key.

PTT(Push-To-Talk) - This switch is pressed to key the transmitter. The red TX indicator on the top

Battery Release

Button

November 1999 Part No. 001-7780-500

panel lights when the transmitter is keyed.

2.2.4 FRONT PANEL KEYS (LIMITED KEYPAD MODEL)

The following keys are located on the front panel

shown in Figure 2-1:

F1, F2, F3 - Each of these keys can be dealer programmed to control a specific function (see Section

2.3.4). These keys are also used in menus to scroll left

( ), scroll right ( ), and for the Enter ( tion. The top key on the side (

AUX

) functions as a

ENT

CLR key in menus.

2-2

) func-

TRANSCEIVER OPERATION

Scan

Enabled

Telephone

Call

InScan

List

Low Tx

Power

Radio-

Wide Scan

Busy

Channel

Figure 2-3 Display

2.2.5 FRONT PANEL KEYS (FULL KEYPAD MODEL)

The following keys are located on the front panel

shown in Figure 2-2:

0-9-These keys enter a number whenever number entry is required.

F1 - This key is dealer programmable to control a specific function (see Section 2.3.4).

F2 - This key is dealer programmable to control a specific function (see Section 2.3.4). In addition, in menus, it provides the Clear (CLR) function.

F3 - This key is dealer programmable to control a specific function (see Section 2.3.4). In addition, in menus, it provides the Enter (ENT) function.

- This key is dealer programmable to control a

specific function (see Section 2.3.4). In addition, in menus, it provides the Scroll Left ( ) function.

Talk-Around

Mode

Low Battery

Alphanumeric Display - This eight-character area of the display indicates alphanumeric messages and feature selection information.

- Standard scanning is enabled (see Section 2.3.11).

Standardand radio wide scanning cannot be enabled at thesametime.

standard scan list (see Section 2.3.11).

with SMARTNET/SmartZone channels only (Section

2.5.6).

2.3.11).

2.4.9).

- A SMARTNET/SmartZone private call is occur-

ring (see Sections 2.5.4 and 2.5.5).

Monitor

Mode

Private

Call

Priority

Channel

Keypad Prog.

Mode

Alphanumeric

Display

Keypad

Locked

- The current conventional channel is in the

- Telephone (interconnect) mode is selected

- Radio-wide scan is enabled (see Section

- Repeater talk-around is enabled (see Section

- This key is dealer programmable to control a

specific function (see Section 2.3.4). In addition, in menus, it provides the Scroll Right ( ) function.

2.2.6 DISPLAY

The following information is indicated by the

display shown in Figure 2-3:

- The conventional monitor mode is enabled (see

Section 2.4.4).

- The selected conventional channel is a priority

channel (see Section 2.4.12).

LOW

- Low transmit power is selected on a conven-

tional channel (see Section 2.4.10).

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Part No. 001-7780-500

November 1999

TRANSCEIVER OPERATION

BUSY

detected by the Busy Channel Lockout feature (see Section 2.4.5).

2.3.6).

Keypad Lock option switch (see Section 2.3.5).

2.3 GENERAL OPERATION

2.3.1 INTRODUCTION

with both trunked and conventional operation. For information on features unique to conventional channels, refer to Section 2.4, and for information on features unique to SMARTNET/SmartZone channels, refer to Section 2.5.

2.3.2 TURNING POWER ON AND SETTING

switch on the top panel. W hen power is initially turned on, an alert tone sounds and the radio software version is momentarily displayed. If a SMARTNET/SmartZone channel is selected, the zone alias is then displayed followed by the unit ID (see page 13). The selected channel is then indicated.

counterclockwise until a click occurs. The display may remain on for a few seconds after power is turned off. It is recommended that power not be turned back on again until the display is blank.

noting the position of the index on the On-Off/Volume knob. To enable a reference tone for setting the volume, proceed as follows:

- A busy system or transmit channel is being

- The battery needs recharging (see Section

- The keypad has been locked by pressing the

This section (2.3) describes features available

VOLUME

Power is turned on and off by the On-Off/Volume

To turn power off, turn the On-Off/Volume knob

The relative volume level can be determined by

• If key press tones are enabled (see Section 2.3.10),

a short tone sounds when front panel keys are pressed.

• If a conventional channel is selected and the

Monitor option switch is programmed (see Section

2.4.4), pressing that switch unsquelches/squelches the receiver and either voice or background noise is heard. If a SMARTNET/SmartZone channel is selected, the receiver cannot be m anually unsquelched.

2.3.3 BACKLIGHT

The backlight for t he display and keypad can be manually turned on by pressing the Backlight option switch if it is available. It can also be dealer programmed to automatically turn on when any key is pressed. It then automatically turns off after the programmed delay so that battery drain is minimized.

2.3.4 OPTION SWITCHES

The programmable option switches are as follows, and the programmable functions are shown in Table 2-1.

• F1, F2, F3

• , # (full keypad 15-key models only)

• AUX, FCN (on side)

If the radio is programmed with both conventional and SMARTNET/SmartZone channels (see Section 2.3.12), these option switches can control a different set of functions for each channel type. For example, the F1 switch could select Hi/Lo Power when a conventional channel is selected and Private Calls when a SMARTNET/SmartZone channel is selected. If no option switch has been programmed to control a particular function, that function may not be available or may be in a fixed mode.

2.3.5 KEYPAD LOCK

If the Keypad Lock option switch has been programmed, the keypad can be locked (disabled) to prevent keys from being accidentally pressed. To lock the keypad, press this switch and a locked keypad is indicated by the icon in the display. To unlock the keypad again, press and hold the Keypad Lock switch until a tone sounds (approximately 1 second). The keypad can also be disabled by programming. It is then permanently disabled and cannot be re-enabled by the user.

November 1999 Part No. 001-7780-500

2-4

TRANSCEIVER OPERATION

2.3.6 LOW BATTERY INDICATION

When the battery voltage falls below a preset level, the icon appears in the display. This icon stays on until power is turned off. In addition, the following low battery indications may be programmed to occur:

• The amber BATT indicator on the top panel lights.

• A beep sounds once per minutein the standby mode.

• A beep sounds each time the PTT switch is pressed.

The battery should be recharged as soon as practical after a low battery indication appears. Refer to Section 5 for more battery information. There is also a battery saver function that can be enabled by programming. This function uses the RSSI level to determine when the site is very near and then automatically switches to the low transmit power output level.

2.3.7 CHANNEL AND ZONE SELECTION

Channel Select

To change the current channel, rotate the 16-position channel selector knob on the top panel to the desired position. With SMARTNET/SmartZone channels, the channel is always indicated by alias (name). With conventional channels, the channel number or frequency may also be displayed (see Section 2.4.2).

Table 2-1 Option Switch Functions

Function

Backlight X X X 2.3.3 Call Alert X X 2.5.7 Call Response X X 2.5.4, 2.5.5 Displayed Information X 2.4.2 Emergency X X 2.5.10 High/Low Power X 2.4.10 Home Zone X X X 2.3.8 Keypad Lock X X X 2.3.5 Keypad Programming X 2.7 Message X X 2.5.8 Monitor X 2.4.4 Normal/Selective X 2.4.6 Phone X X 2.5.6 Priority X 2.4.12 Private Call X X 2.5.4, 2.5.5 Radio Wide Scan X X X 2.3.11 Repeater Talk-Around X 2.4.9 Scan X X X 2.3.11 Scan Edit X 2.4.11 Site Lock X 2.5.14 Site Search X 2.5.14 Status X X 2.5.9 Tones On-Off X X X 2.3.10 Zone X X X 2.3.7

Conv.

Mode

Smart-

Mode

Net

Smart-

Zone

Mode

See

Section

Zone Select

A zone is a group of up to any 16 conventional and SMARTNET/SmartZone channels defined by programming (see Section 1.2.4). Up to 16 zones can be programmed for a total of 16 x 16 or 256 channels. One use of zones may be to select groups of channels programmed for operation in different geographical areas or radio systems. Zones are selected as follows:

1. Press the Zone option switch and the alias (name) of

the current zone is flashed in the display.

2. Use the number keys to enter the desired zone

number or scroll through the available zones using the and keys.

3. Once the desired zone is displayed, press the ENT

key or wait 4 seconds.

2.3.8 HOME ZONE

The radio can be programmed with a home zone. Then when power is turned on, the radio can be programmed so that either the home or last selected zone is automatically selected.

If the Home Zone option switch is programmed, itcanbeusedtoquicklyselectorchangethehome zone. To select the home zone, momentarily press this switch. Then to change the home zone to the currently selected zone, press and hold this switch until a tone sounds (approximately 1 second).

2.3.9 TIME-OUT TIMER

The time-out timer disables the transmitter if it is keyed for longer than the programmed time. O n each

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channel it can be programmed for times from 15 seconds up to 3 minutes, 45 seconds or disabled (not used). If the t ransmitter is keyed continuously for longer than the programmed time, the transmitter is disabled and an i nvalid condition tone sounds. Five seconds before time-out occurs, an alert tone sounds to indicate that time-out is approaching. The timer and tone are reset by releasing the PTT switch.

One use of this feature is to prevent a channel from being kept busy for an extended period by an accidentally keyed transmitter. It can also prevent possible transmitter damage caused by transmittingfor an excessively long period. Conventional channels can also be programmed with the Penalty and Conversation timers that are described in Sections 2.4.7 and

2.4.8.

2.3.10 TONE ENABLE/DISABLE

The supervisory tones (see Section 2.6) can be enabled and disabled by the Tones On-Off option switch if it is programmed. When tones are enabled by this switch, “TONE ON” is momentarily displayed and a tone sounds. Conversely, when tones are disabled, “TONE OFF” is displayed and no tone sounds. If the Tones On-Off option switch is not programmed, tones are fixed in the on or off mode by programming.

2.3.11 SCANNING

Introduction

disabled and vice versa. More information on these modes follows.

Standard Scanning

Standard scanning monitors only channels that are the same type as that currently selected. Therefore, if a conventional channel is selected, only conventional channels are scanned, and if a SMARTNET channel is selected, only SMARTNET channels are scanned. Standard scanning is turned on andoffbytheScanoptionswitchasfollows.Ifthis switch is not programmed, standard scanning is not available.

• To turn standard scanning on, press the Scan option

switch. Scanning is enabled when the “S”iconis indicated in the upper left corner of the display and SCAN x (conventional) or SCAN ON (SMARTNET/SmartZone) is briefly displayed. The “x” is the number of the conventionalscan list (1, 2, or 3) that is selected. Refer to Section 2.4.11 for more information.

• To turn scanning off, press the Scan option switch

again. The “S” icon is then no longer indicated and “SCAN OFF” is briefly displayed.

• If the zone or channel is changed while scanning is

selected, scanning continues on the same or a different scan list (see scan list information which follows).

Scanning cycles through a list of channels, called a “scan list”, checking each for messages. When a message is detected that your transceiver is programmed to receive, scanning stops and the message is received. Shortly after the message is complete, scanning resumes (unless it has been disabled).

There are two basic scan modes: Standard and Radio Wide. The Standard mode is unique to the type of channel selected (conventional or SMARTNET/ SmartZone), and the Radio Wide mode is the same regardless of the channel type selected. Only one of these scan modes can be enabled at a time. Therefore, if standard scanning is enabled while radio wide scanning is occurring, radio wide scanning is automatically

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Radio Wide Scanning

Radio wide scanning monitors the channels in the preprogrammed radio wide scan list (see information whichfollows).Thislistmaycontainupto16channels of any type (conventional or SMARTNET/SmartZone) assigned to any zone. Radio wide scanning is turned on and off by the Radio Wide Scan option switch as follows. If this switch is not programmed, radio wide scanning is not available.

• To turn radio wide scanning on, press the Radio

Wide Scan option switch. The icon is then displayedcontinuouslyand “RWS ON” is displayed briefly.

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• To turn radio wide scanning off, press the Radio

Wide Scan option switch again. The icon is then no longer indicated and “RWS OFF” is displayed briefly.

• If the zone or channel is changed while radio wide

scanning, radio wide scanning continues normally.

Scan Resume Delay

When a message is received or transmitted while scanning, there is a programmable delay before scanning resumes. The delay after receiving a call prevents another message from being received before a response can be made, and the delay after transmitting a call ensures that a response is heard to your call instead of another message occurring on some other channel.

Standard Mode Scan List

Determining Which Channels are in Scan List

Channels in the radio wide and standard SMARTNET/SmartZone scan lists are not indicated. With standard conventional scanning, the selected channel is in the current scan list if the box icon (around “S”) is indicated in the upper left corner of the display.

Nuisance Channel Delete

With standard scanning, both conventional and SMARTNET/SmartZone channels can be temporarily deleted from the scan list. This feature is not available with radio wide scanning. Proceed as follows:

NOTE: The selected channel and conventionalpriority channels cannot be deleted from the scan list.

1. While receiving a message on the channel to be

deleted, press and hold the Scan option switch until the alert tone sounds (about 1 second).

NOTE: The selected channel is always scanned.

With conventional operation when using the full keypad (15-key) model, up to three scan lists can be programmed. The list that is scanned is selected by the Scan option switch as described in Section 2.4.11. Selecting another conventional channel does not change the current scan list. In addition, the scan lists are user programmable if the Scan Edit option switch is programmed. With limited keypad (3-key) models, only Scan List 1 can be scanned, and it is not user programmable.

With SMARTNET/SmartZone operation, each channel can be programmed so that one of up to three different scan lists is automatically selected. Channels can also be programmed so that scanning is automatically disabled when they are selected. SMARTNET/ SmartZone scan lists are not user selectable or programmable.

Radio Wide Mode Scan List

With radio wide scanning, there is only one preprogrammed scan list available regardless of the type of channel selected, and it is not user programmable.

2. The channel is then deleted and scanning of the remaining channels in the scan list resumes.

3. Deleted channels are added back into the scan list if either of the following occur:

• Scanningis turnedoff a nd then on againusing the

Scan switch.

• Transceiver power is turned offand then on again.

2.3.12 CONVENTIONAL AND SMARTNET/

SMARTZONE O PERATION

Introduction

Each selectable channel is programmable for either conventional, SMARTNET, or SmartZone operation. For example, Zone 1/Channel 1 could be a conventional channel, Zone 1/Channel 2 a SMARTNET channel, and so on. More information on these modes follows.

Conventional Operation

This is a non-trunked operating mode which accesses independent radio channels (there is no a utomatic access to several channels as with trunked oper-

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ation). Monitoring before transmitting may not occur automaticallyin this mode, so the channel may have to be manually monitored before transmitting (see Section 2.4.3). Selecting a conventional channel selects a transmit and receive frequency and other parameters such as Call Guard squelch coding.

SMARTNET/SmartZone Operation

This is a trunked operating mode that uses ID codes to select which mobiles are being called and which calls are received. Monitoring is performed automatically and special messages and tones indicate busy and out-of-range conditions. Enhanced features include roaming (SmartZone only), telephone, private, and emergency calls, Call Alert, and messaging. Operating features unique to SMARTNET/SmartZone channels are described in Section 2.5.

This radio supports only the SMARTNET II trunking protocol. It does not support the SMARTNET I (also referred to as Type I) protocol. W hen a SMARTNET or SmartZone channel is selected or the radio is powered up on a SMARTNET/SmartZone channel, it searches for a control channel and attempts to register on the radio system. Once a control channel is found, the alias (name) of the selected channel is displayed. If a control channel could not be found (because of an out of range condition or the system ID is not correct, for example), “NO SYS” is displayed and the radio continues to search for a control channel.

The control channel transmits and receives system information to and from all radios registered on the system. Therefore, once a control c hannel is found, it is continuously monitored for incoming call information and is used to make call requests. The radio automatically changes to a traffic channel to place and receive calls and then returns to the control channel when the call is complete.

2.4 CONVENTIONAL FEATURES

2.4.1 INTRODUCTION

2.4.2 DISPLAY MODE SELECTION

If the Displayed Information option switch is programmed, the display mode used to indicate conventional channels can be user selected. Pressing this switch cycles between the following modes. The selected mode does not change when power is turned off. If the Displayed Information option switch is not programmed, the Alias mode is always used.

Alias - The preprogrammed alphanumeric tag for the channel is displayed.

Number - The channel number from 1-16 is displayed.

Frequency - The receive frequency of the selected channel is displayed in megahertz.

2.4.3 MONITORING BEFORE TRANSMITTING

With conventional operation, channels are monitored automatically or manually as follows:

Automatic Channel Monitoring

If the selected channel is programmed for the Busy Channel Lockout feature, monitoring is performed automatically. Refer to the description of this feature in Section 2.4.5 for more information.

Manual Channel Monitoring

The automatic monitoring just described may not be programmed or it may occasionally disable the transmitter even i f the channel is not in use. In this case, the channel must be monitored manually as follows:

Rx Indicator

- With scanning disabled, note if the greenRX indicator on the top panel is on. If it is not, the channel is not being used and the call can be transmitted. If it is on, a carrier is being detected, so the channel may be busy (see next paragraph).

The following information describes features unique to the conventional operating mode (described briefly in Section 2.1.2). Refer to Section 2.3 for information on features common to all operating modes, andtoSection2.5forinformationonfeaturesunique to the SMARTNET/SmartZone mode.

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Monitor Mode

- There may be times when the busy indication is displayed even though no one is using the channel. Monitoring should then be performed by disabling Call Guard squelch using the Normal/ Selective option switch as described in Section

2.4.6 or the monitor mode described next.

TRANSCEIVER OPERATION

2.4.4 MONITOR MODE

The monitor mode temporarily disables squelch control features (such as Call Guard squelch) so that all messages are heard on the selected channel. It also overrides the Busy Channel Lockout feature (see next section) and temporarily halts scanning.

To monitor the selected transmit channel, select the monitor mode by briefly pressing the Monitor option switch (if available). The icon is displayed and the receiver unsquelches (even if no carrier is detected). To disable the monitor mode and return to normal operation, press the Monitor switch a second time.

To monitor the selected receive channel instead of the transmit channel, press and hold the Monitor switch until the alert tone sounds (approximately 1 second). This function may be useful, for example, during weak signal conditions if intermittent squelching makes a message difficult to understand.

2.4.6 CALL GUARD SQUELCH

General

Call Guard® squelch (also called CTCSS/DCS signaling) can be programmed on conventional channels. This feature eliminates distracting messages intended for others using the channel by using a subaudible tone or digital code to control the squelch. This tone or code is unique to a user or talk group on that channel. It is transmitted by the mobile placing a call, and if Call Guard squelch is programmed in the mobile receiving the call, it must detect the correct tone or code to receive the call.

Call Guard Squelch Enable/Disable

To disable Call Guard (Selective) squelch so that all messages on the selected or scanned channels are heard, press the Normal/Selective option switch if programmed. The receiver unsquelches only if a carrier is detected. To re-enable Call Guard squelch, press the Normal/Selective switch again.

2.4.5 BUSY CHANNEL LOCKOUT

The Busy Channel Lockout feature (also called Transmit Disable On Busy) automatically disables the transmitter if the channel is busy when the PTT switch is pressed. When a busy condition is detected by this feature, the transmitter is disabled, “BUSY” is indicated in the lower part of the display, and a tone similar to a standard telephone busy tone sounds until the PTT switch is released. This feature is programmed to operate in one of the following modes on each channel:

Off - The transmitter keys even if the channel is busy. Noise - The transmitter is disabled if any signal is

detected on the channel.

Tone - The transmitter is disabled if the detected

squelch coding is not correct.

If busy override is permitted by programming, it is possible to transmit even when the transmitter i s disabled by this feature. Simply quickly release the PTT switch and press it again.

When Call Guard squelch is disabled by this switch, “SQ NORM” is flashed on the lower line of the display, and when it is enabled, “SQ SLCT” is flashed. The selected mode does not change when other channels are selected or power is cycled. Call Guard squelch can also be disabled by the monitor mode described in Section 2.4.4.

Changing the Call Guard Code

If using the full keypad (15-key) model and the ability to change Call Guard codes has been enabled by programming, the transmit and receive codes from one channel can be temporarily or permanently reassigned to all channels of the current zone. Proceed as follows:

1. Using the number keys, enter the number of the

channel that is programmed with the code you want to reassignto all channels (only channels1-9 can be selected). See Section 2.4.2 for information on how to display channel numbers.

2. The display thenbriefly indicates“CODE x”, where

“x” is the key that was pressed. The codes assigned

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to that channel are then reassigned to all the other channels in the current zone. The reassignments remain in effect even after power is cycled.

3. To restore all Call Guard codes in the current zone totheoriginalsettings,pressthe“0”key.

2.4.7 PENALTY TIMER

A penalty timer m ay be programmed on conventional channels to prevent transmissions for a period of time after the time-out timer described in Section 2.3.9 disables the transmitter. The penalty timer starts when the PTT switch is released after the transmitter has been disabled. If the PTT switch is pressed during the penalty time, the time-out indication occurs again. A beep sounds when the penalty timer expires and the transmitter can then be keyed.

2.4.8 CONVERSATION TIMER

A conversation timer can be programmed on conventional channels to limit the total length of a conversation rather than just the length of each transmission as with the time-out timer. This timer is reset when the time between transmissions exceeds the penalty time just described. A warning tone sounds 5 seconds before the conversation timer expires. When it expires, the transmitter is disabled and a warning tone sounds. The transmitter remains disabled for the length of the penalty time, and a beep sounds when it can be keyed again.

2.4.9 REPEATER TALK-AROUND

Normally, all transmissions go through a repeater which usually increases range. However, if out of range of the repeater,you cannot talk to anyone else on that channel even though the mobile you are calling may be only a short distance away. To allow communication when this situation occurs, repeater talk-around can be used to transmit on the receive frequency. This allows direct communication with a mobile without going through a repeater.

Repeater talk-around can be selected if the Repeater Talk-Around option switch is programmed. When talk-around is enabled by this switch, the icon is displayed and “RTA ON” is flashed in the display. Then when it is disabled by pressing this

switch again, that icon is no longer displayed and “RTA OFF” is flashed. Changing channels or turning power off does not change the selected talk-around mode.

2.4.10 POWER OUTPUT SELECT

If the High/Low Power option switch is programmed and power selection is permitted on the current channel by programming, either high or low transmitter power can be selected. Generally, the high power setting transmits longer distances but uses more battery power, and the opposite occurs with the low power setting. When the low power is selected on the current channel, “LOW” is indicated continuously near the bottom of the display.

Pressing the High/Low Power switch toggles the power setting. The new level is flashed in the display when this switch is pressed as “HI POWER” or “LO POWER”. If power selection is not permitted on the channel, the fixed power level is flashed and no power change occurs. Turning power off or changing channels does not change the power setting selected for a channel.

2.4.11 CONVENTIONAL MODE SCANNING

General

The following information describes scanning features unique to conventional operation. Scan operation common to all modes is described in Section

2.3.11, and scan operation unique to SMARTNET/ SmartZone operation is described in Section 2.5.12.

Selecting a Scan List

When standard scanning with full keypad (15key) models, one of up to three scan lists can be selected. These lists can be user programmed as described in the information which follows. With limited keypad (3-key) models, only one scan list is available and is not user programmable. However, nuisance channels can still be temporarily deleted as described in Section 2.3.11.

Proceed as follows to select a scan list with full keypad models:

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1. Press the Scan option switch to enable scanning. The currently selected scan list is momentarily indicated as “Scan x”, where “x” is the list number (1-3).

2. To selectone of the other lists,press the number key corresponding to the desired list (1-3) and the selectedlist is then momentarily displayedas “Scan x”. The selected scan list is stored in memory and does not change until this procedure is repeated.

Programming a Scan List

With full keypad (15-key) models, each of the three scan lists is user programmable if the Scan Edit option switch is programmed and user programming of the list is allowed. Otherwise, the channels in these lists are determined by dealer programming. User scan list programming is not available with limited keypad (3-key) models. Proceed as follows to program a scan list:

1. Make sure all scanning is off (neither the standard

scan “S” icon or radio-wide scan icon is displayed).

Transmitting in Scan Mode

Each conventional scan list can be programmed for one of the following modes. These modes determine if priority sampling occurs and also the channel on which transmissions occur while scanning. Refer to the next section for more information.

No Priority - No priority channel sampling occurs when the list is selected. The radio transmits on the selected channel.

Priority/Tx Priority - Priority sampling occurs and the priority channel is the one programmed in the selected scan list. The radio transmits on the priority channel.

Priority/Tx Selected - Priority sampling occurs and the priority channel is the one programmed in the selected scan list. The radio transmits on the selected channel.

Priority on Selected - The priority channel is always the selected channel. The radio transmits on the selected channel.

2. Press the Scan Edit option switch and then within 2 seconds press the number key corresponding to the scan list you w ant to edit (1-3). If a list is not selected within the allotted time, the last active conventional standard scan list is automatically selected.The selectedlist is indicatedas “SCAN x”. If user programming is disabled on a list, “NO LIST” is momentarily displayed and it cannot be edited.

3. Select the channel you want to add or delete using the and keys. To change zones, press the F1 key and select the new zone.

4. If the selected channel is in the scan list, the box

around “S” is i ndicated in the upper left corner of the display. To add the channel to the scan list, pressthe“1” key,and todelete thechannel, press the “2” key.

NOTE: The priority channel cannot be deleted (see Section 2.4.12).

5. To exit this mode and save the changes, press the ENT or CLR key.

Talkback - No priority sampling occurs. The radio transmits on the channel of a call while scanning is halted. Then once scanning resumes, it transmits on the selected channel.

2.4.12 PRIORITY CHANNEL SAMPLING

General

The priority channel sampling feature ensures that when standard scanning, messages on the priority channel are not m issed while listening to a message on some other channel. The transceiver can be programmed so that the priority channel is a fixed channel associated with the current scan list, the currently selected channel, or not used (see preceding section). When the selected channel is a priority channel,

“P”

is indicated in t he upper right part of the

display.

Priority channel sampling occurs only with Standard conventional scanning. It does not occur with Radio Wide scanning, when listening to any type of SMARTNET/SmartZone call, or when transmitting. A series of “ticks” may be heard when the priority

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channel is sampled while listening to a message on some other channel.

The priority sampling times are programmed by

the following parameters:

Lookback Time A - This time determines how often the priority channel is checked for activity. Times of

0.25-4.00 seconds in 0.25-second steps can be programmed.

Lookback Time B - This time determines how often the priority channel is checked once an incorrect Call Guard (CTCSS/DCS) code is detected. Since it takes much longer to detect an incorrect Call Guard signal than a carrier, this time should be relatively long to prevent the interruptions from making a message difficult to understand. Times of 0.5-8.0 seconds can be programmedin0.5-secondsteps.

Changing The Priority Channel

If a specific priority channel is associated with the current scan list, it can be changed if the Priority option switch is programmed. Proceed as follows:

Placing a Standard Conventional Call

1. Turn power on and set the volume as described in Section 2.3.2. Select the channel programmed for the mobile you want to call (see Section 2.3.7).

2. Monitor the channel automatically or manually as described in Section 2.4.3.

3. Press the PTT switch and the call proceeds as follows:

• If the Busy Channel Lockout feature is

programmed on the channel, the transmitter is automaticallydisabled if the channel is busy (see Section 2.4.5).

• Otherwise, busy and out-of-range conditions are

not indicated and speaking can begin after monitoring the channel.

4. Press (and hold) the PTT switch to talk and release it to listen.

Receiving a Standard Conventional Call

1. Make sure all scanning is off (neither the standard scan “S” icon nor radio-wide scan icon displayed).

2. Select the channel that you want to be the priority channelusing the channel selector switch on the top panel.Ifthe channelis ina differentzone,also select the appropriate zone.

3. Press the Priority option switch and the “P”iconis displayed to indicate that the selected channel is now the priority channel.

2.4.13 STANDARD CONVENTIONAL CALLS

Standard conventional calls are calls to or from other mobile units on the selected channel. The proper coded Call Guard signaling (see Section 2.4.6) may need to be transmitted for them to receive your call and also for you to receive their calls. Proceed as follows to place and receive these calls:

1. Select or scan the channel programmed for the call you want to receive (refer to Sections 2.3.11 and

2.4.11 for more scanning information).

2. When the call is r eceived, press the PTT switch to talk and release it to listen. If scanning, you may have to respond before scanning resumes to ensure that the response occurs on the channel of the call.

2.4.14 DTMF/ANI SIGNALING

DTMF (Dual Tone Multi-Frequency) tones can be generated manually or automatically for ANI (Automatic Number Identification) and other purposes. The following options may be enabled by dealer programming for each conventional channel:

DTMF Keypad - With full keypad (15-key) models only, pressing 0-9, , or # on the keypad while holding the PTT switch transmits the corresponding tone until the key is released.

Pre-Tx ANI - A preprogrammed ANI sequence is automatically sent when you press the PTT switch.

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Post-TX ANI - A preprogrammed ANI sequence is automatically sent each time you release the PTT switch.

Disabled - All DTMF signaling is disabled.

2.5 SMARTNET/SMARTZONE FEATURES

2.5.1 INTRODUCTION

The following information describes features unique to the SMARTNET and SmartZone operating modes described briefly in Section 2.3.12. Refer to Section 2.3 for information on features common to all operatingmodes, and to Section 2.4 for information on features unique to the conventional mode.

2.5.2 VIEWING UNIT ID

Each radio in a SMARTNET system is identified with a system ID and Unit ID. To display the Unit ID, make sure that a SMARTNET channel is selected and then turn power off and then on again. The software version number, current zone, and Unit ID are then displayed in sequence. The six-digit Unit ID is displayed as IDxxxxxx.

2.5.3 STANDARD GROUP CALLS

Standardgroup calls are between you and another mobile, group of mobiles, or a control station (a radio at a fixed location). Most calls you m ake will probably be this type.

Placing a Standard Group Call

1. Turn power on and set the volume as described in

Section 2.3.2. Select the channel programmed for the talk group you want to call (see Section 2.3.7). A regular or announcement talk group can be selected.

2. Press the PTT switch and when the alert tone

sounds, begin talking. Other indications that may occur are as follows:

• Ifthe busy tone sounds and “BUSY” is displayed,

the system is busy. Release the PTT switch and wait for the call back tone to sound. Then press the PTT switch within 3 seconds and begin talking.

• Ifthe radio system cannot be accessed within 500

ms of pressing the PTT switch, a continuous tone sounds until the system is accessed or the PTT switch is released.

• If your unit ID is invalid, the call is being made to

an invalid group ID, or group calls are not allowed, “INVALID ID” is displayed and an alert tone sounds.

Receiving a Standard Call

Group calls are automatically received if a SMARTNET/SmartZone channel is selected. The display continues to indicate the selected channel alias (name) when a call is received.

2.5.4 ENHANCED PRIVATE CONVERSATION

CALLS

General

Private calls allow you to place a call to a specific mobile unit. Either the Enhanced Private Conversation™ or Private Conversation II™ modes may be programmed depending on the capabilities of the radio system. The Enhanced Private Conversation mode is described in the following information, and the Private Conversation II mode is described in Section 2.5.5.

The Private Call option switch is required to place these calls, and either that switch or the Call Response option switch is required to receive them. Proceed as follows.

Placing an Enhanced Private Conversation Call

This call can be initiated by selecting the unit ID from a call list (list entry) or by directly entering it using the keypad (direct entry). Direct entry is available with full keypad (15-key) models only. Proceed as follows:

List Entry Method (All Models)

1. With a SMARTNET/SmartZone channel selected,

momentarily press the Private Call option switch. The private call mode is indicated by “C”inthe upper part of the display. The tag (alias) of the last IDcalled is displayed ifit matches an ID in your call list. Otherwise, the last ID called is displayed.

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2. Enter the index of the desired ID if you know it or scroll through the list using the and keys until you find the desired ID. Press the cancel the call.

3. Press the PTT switch or the call. The display then indicates the alias of the destination radio. Proceed to the bulleted list following the next method for conditions that may occur next.

Direct Entry Method (Full Keypad Models Only)

1. With a SMARTNET/SmartZone channel selected, press and hold the Private Call option switch until a tone sounds (approximately 1 second). The last ID calledis displayed, and the private call mode is indicated by “C” in the upper part of the display.

2. Using the 0-9 keys, enter the 6-digit ID of the mobile unit you are calling. Press the key to erase the last digit entered or press the cancel the call.

3. Press the PTT switch or the call. If the entered ID is invalid, “INVALID” is momentarily displayed and the call is not initiated. If the entered ID is valid, the display indicates the alias of the ID if it matches a n ID in your call list. Otherwise, the ID you entered continues to be displayed. Any of the following conditions may then occur:

ENT

CLR

key to

key to initiate the

CLR

key to

key to initiate the

• Ifthe radio you are calling is on the air,telephone

type “ringing” is heard for 20 seconds or until the called party answers.

• If the called party answers and the call is

successful,the person’svoice isheard andthe call is carried on the same as a group call. To end the call at any time, press the

CLR

key.

• If the called party does not answer within 20

seconds, “NO ANSWR” is displayed and a continuous tone sounds. End the call by pressing

CLR

the

key.

• If the called radio is not in service, no ringing is

heard, “NO ACK” is displayed, and a continuous tone sounds. End the call by pressing the key.

CLR

• If neither your radio nor the radio being called is

authorized to make unit-to-unit calls, “REJECT” is displayed and a continuous tone sounds. End the call by pressing the

CLR

key.

• If the called party answers but the radio system is

busy, four low tones sound and “BUSY” and “WAIT” are alternately displayed. When the system is no longer busy, the called party automatically responds.

• If an out-of-range condition exists or the radio

system is not in service, “LOST CALL” is displayed and a continuous tone sounds. End the call by pressing the

Receiving an Enhanced Private Conversation Call

These calls are automatically received if a SMARTNET/SmartZone channel is selected. Proceed as follows:

1. When a call is received, a recurring unit call tone

(three beeps) sounds for up to 20 seconds, and “CALL RCV” and the current channel alias are alternately displayed.

2. To answer the call, press the Private Call option

switch and then the PTT switch and begin talking. The private call mode is indicated by “C”inthe upper part of the display. The a lias of the incoming call is displayed if the ID is in your call list. Otherwise, the unit ID is displayed. NOTE: If the Private

Call option switch is not pressed before the PTT switch, a group call is transmitted on the selected group.

CLR

key.

• To end the call when the conversationis complete

or at any other time, press the

CLR

key.

• If unit-to-unit (private) calls are not permitted

(Private Call switch not programmed), press the Call Response option switch, if available, to answer the call.

• If the call is not answered within 20 seconds, it is

automatically terminated.

• If the radio system is busy, four low tones sound

and “BUSY” and “WAIT” are alternately

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displayed.When thesystem is no longer busy,the callback tone (four beeps)is heardand yourradio automatically starts transmitting. Press the PTT switchtocontinuethecall.

• To ignore an incoming call, press the

wait 20 seconds until the recurring unit call tone stops sounding. NOTE:IftheCLRkeyis

programmedfor theCall function, itwill notclear the call.

2.5.5 PRIVATE CONVERSATION II CALLS

General

Private calls allow you to place a call to a specific mobile unit. Either the Enhanced Private Conversation™ or Private Conversation II™ modes may be programmed depending on the capabilities of the radio system. Operation in the Enhanced Private Conversation mode was described in Section 2.5.4, and operation in the Private Conversation II mode is described in the following information.

The Private Call option switch is required to place these calls, and either that switch or the Call Response option switch is required to receive them. Proceed as follows.

Placing a Private Conversation II Call

List Entry Method (All Models)

CLR

key or

3. Press the PTT switch to initiatethe call. The display thenindicates thealias of the destination radio. Wait approximately 1 second and then begin talking. Proceed to the bulleted list which follows the next method for conditions that may then occur.

Direct Entry Method (Full Keypad Models Only)

1. With a SMARTNET/SmartZone channel selected, press and hold the Private Call option switch until a tone sounds (approximately 1 second). The last ID called is displayed and the private call mode is indicated by “C” in the upper part of the display.

2. Using the 0-9 keys, enter the 6-digit ID of the unit you are calling. Press the key to erase the last digitentered or press the

3. Press the PTT switch to initiate the call. If the entered ID is invalid, “INVALID” is momentarily displayed and the call is not initiated. If the entered ID is valid, the display indicates the alias of the ID if it matches an ID in your call list. Otherwise, the ID you entered continues to be displayed. Wait approximately1 second and t hen begin talking.Any of the following conditions may then occur.

CLR

key to cancel the call.

• If the called party answers and the call is

successful,theperson’svoice is heardand thecall iscarriedonthesameasagroupcall.Toendthe call at any time, press the

CLR

key.

• If the radio system is busy, four low tones sound

and the “BUSY” and “WAIT” are alternately displayed.When thesystem is no longer busy,the call back tone (four beeps) is heard and a channel is automatically acquired. Press the PTTswitch to continue the call.

1. With a SMARTNET/SmartZone channel selected, momentarily press the Private Call option switch. The private call mode is indicated by “C”inthe upper part of the display. The tag (alias) of the last IDcalled isdisplayed ifit matches an ID in your call list. Otherwise, the last ID called is displayed.

2. Enter the index of the desired ID if you know it or scroll through the list using the and keys until you find the desired ID. Press the cancel the call.

CLR

key to

Receiving a Private Conversation II Call

Unit-to-unit calls are automatically received if a SMARTNET/SmartZone channel is selected. Proceed as follows:

1. When a call is received, an alert tone sounds and the

caller’s voice is heard. While voice is heard, “C”is indicatedinthe upper partof the display and“CALL RCV” and the current channel alias are alternately displayed.

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2. To answer the call, press the Private Call option switch and then the PTT switch and begin talking. The private call mode is indicated by “C”inthe upper part of the display. The alias of the incoming call is displayed if the ID is in your call list. Otherwise, the unit ID is displayed. NOTE: If the Private

Call option switch is not pressed before the PTT switch, a group call is transmitted on the selected group.

• To end the call when the conversationis complete

orat any other time, press the is not answered within 20 seconds, it is automatically terminated.

CLR

key.If the call

• If private calls are not permitted (Private Call

switchnot programmed),press the Call Response option switch, if available, to answer the call.

2.5.6 TELEPHONE CALLS

General

Telephone calls allow calls to be placed and received over the public telephone system using the transceiver. If the transceiver is programmed for telephone calls (Phone option switch programmed), they are placed and received as follows:

3. Press the PTT switch or the call. The display indicates “WAIT” while the connection to the phone system is occurring. Once connected, the normal dial tone is heard and the alias of the number being called is displayed. The radiothen automatically dialsthe telephone number and the normal ringing or busy tone is heard. Proceed to the bulleted list which follows the next method for conditions that may then occur.

Direct Entry Method (Full Keypad Models Only)

1. With a SMARTNET/SmartZone channel selected, press and hold the Phone option switch until a tone sounds (approximately 1 second). The last phone number called is displayed, and the phone mode is indicated by the icon.

2. Enter the number using the a character, press F1 and then the key. To

enter a pause (indicated by “P”), press the F1, , andthen#keys.The number scrollsto the left in the display so that the seven right-most digits are always displayed. Numbers up to 16 digits (including pauses) can be entered. Press the keytocancelthecall.

ENT

key to initiate the

0-9

and#keys. To dial

CLR

Placing a Telephone Call

Telephone calls can be placed by selecting the number from a preprogrammed phone number list (list entry) or by directly entering it using the keypad (direct entry). Direct entry is available with full keypad (15-key) models only. Proceed as follows:

List Entry Method (All Models)

1. With a SMARTNET/SmartZone channel selected,

momentarily press the Phone option switch. The phone mode is indicated by the icon, and the display indicates the alias of the last called telephone number if it is in your phone number list. Otherwise, the last called telephone number is displayed.

2. Enter the index of the desired telephone number if

you know it or scroll through the list using the and keys until you find the desired number. Press the

CLR

key to cancel the call.

ENT

key to initiate the

• After the called party answers, press the PTT

switch to talk and release it to listen. You cannot talk and listen at the same time because the radio cannot transmit and receive at the same time. Each time the PTT switch is released, a tone is heard by the other party that indicates when a response can be m ade. To end the call when the conversation is complete or at any other time, press the

CLR

key.

• If enabled by dealer programming, a number can

be dialed during a call by simply holding down the PTT switch and dialing the number.

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+ 86 hidden pages

EFJohnson 7780 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual