Motorola PRIVACY PLUS B5, PRIVACY PLUS B7 User Manual

*68P81072C40-O*

68P81072C40-O

MTX Series

Models B5 and B7

Privacy Plus®Portable Radios

operating instructions

1 MTX Series Models B5 and B7

Privacy Plus®Portable Radios

Introduction

Inspection and Unpacking............................................................................3

Warnings, Cautions, and Notes ...................................................................3

Getting Started

Radio/Antenna Identification .......................................................................4

Antenna Installation....................................................................................5

Battery Installation.....................................................................................6

Battery Removal........................................................................................6

Universal Connector Seal Removal................................................................7

Belt Clip Installation and Removal .................................................................7

Controls, Switches, Indicators, and Connectors..............................................8

Keypad...................................................................................................10

Display...................................................................................................11

Alert Tone Indications...............................................................................12

Indicator LED Indications...........................................................................13

Time-Out Timer........................................................................................13

Trunked or Conventional Radio Operation.....................................................13

Basic Radio Operation

Radio On/Off and Power-Up ......................................................................14

Selecting a Trunked System and Mode........................................................14

Selecting a Conventional Mode...................................................................15

Receiving................................................................................................17

Transmitting............................................................................................18

General Radio Features Operation

Low-Battery Alert.....................................................................................19

Variable RF Power Level............................................................................19

Muting the Keypad Tones..........................................................................20

Scan Operation........................................................................................21

Programming the Radio’s Lists ..................................................................23

Trunked Radio Features Operation

Viewing Your Radio’s ID Number.................................................................27

Failsoft Operation.....................................................................................28

Trunked Telephone Operation.....................................................................29

Private ConversationTMI and II Call Operation (800MHz Only)...........................35

Enhanced Private Conversation™ Call Operation (900MHz, VHF, UHF).............43

Call Alert™ Page Operation .......................................................................52

, Motorola, MTX838, MTX 2000, MTX 8000, MTX 9000, Privacy Plus, Private-Line,

Digital Private-Line, MDC-1200, PAC•RT, Quik-Call II, Stat-Alert, Channel Scan,

Private Conversation, and Call Alert are trademarks of Motorola Inc.

8000 W. Sunrise Blvd., Ft. Lauderdale, FL 33322

2 MTX Series Models B5 and B7

Privacy Plus Portable Radios

Contents (cont.)

Conventional Radio Features Operation

Conventional Telephone Operation...............................................................62

Batteries and Accessories

Battery Information..................................................................................67

Recharging Nickel-Cadmium Batteries.........................................................67

Charging Temperature..............................................................................67

Short Circuit ...........................................................................................67

Memory Effect (Reduced Charge Capacity)...................................................68

Nickel-Cadmium Battery Disposal ...............................................................68

Accessories List......................................................................................68

General Information

Radio Care .............................................................................................70

FCC Safety Standards...............................................................................71

Restrictions ............................................................................................72

Service...................................................................................................72

Express Service Plus (ESP)........................................................................73

Computer Software Copyrights ..................................................................74

3 Introduction

MTX

HOME

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

Inspection and Unpacking

Inspect the shipping carton for any signs of damage. Remove and check the contents to be sure that all ordered items have been shipped. Inspect all items thoroughly. If any items have been damaged during transit, report the damage to the shipping company immediately.

Radio Packing Box Contents

• Radio

• Antenna

• Nickel-Cadmium Battery

• Belt Clip

• Help Card

• Radio Information Sheet

• Operating Instructions Manual

Warnings, Cautions, and Notes

Throughout the text in this publication, you will notice the use of WARNINGS, CAUTIONS, and Notes. These notations are used to emphasize that safety hazards exist, and care must be taken or observed.

WARNING: An operational procedure, practice, or

condition, etc., which may result in injury or death if not

carefully observed.

CAUTION: An operational procedure, practice, or condition,

etc., which may result in damage to the equipment if not

carefully observed.

Note: An operational procedure, practice, or condition, etc.,

which is essential to emphasize.

4 Getting Started

Antennas

Radio/Antenna Identification

An information label is attached to the back of your radio (chassis), just under the battery contacts. A radio model number is identified on this label. A typical model number might be H01UCH6DB7AN. The fourth position of the model number (in this case “U”) identifies the operating frequency band of the radio. The Radio Operating-Frequency Chart lists all fourth-position alpha characters and corresponding frequency band.

Radio Operating-Frequency Chart

Fourth-position Frequency Fourth-position Frequency Fourth-position Frequency

Character Band Character Band Character Band

K 136-178 MHz R 403-470MHz U 806-870MHz

Antennas are frequency sensitive and are color coded according to the frequency range of the antenna. The color code indicator is the insulator in the center of the base of the antenna. The following illustrations and chart will help identify the antenna, antenna frequency range, and corresponding color code.

Refer to the Radio Operating-Frequency Chart and the Antenna Identification Chart to ensure that the match between your radio and antenna is correct.

S 450-520MHz W 896-941MHz

UHF

Helical

800 MHz

Whip

800 MHz

Stubby

UHF Whip

Getting Started (cont.)

top of the radio. Rotate the antenna clockwise until it fits firmly against the bushing.

Antenna Identification Chart

Antenna Approx. Insulator Frequency

Type Length Color Code Range

In. MM

VHF Wide Band 8.1 203 RED 136-174 MHz Helical

VHF 7.8 195 YELLOW 136-151 MHz Helical 7.3 183 BLACK 151-162 MHz

UHF 3.3 83 RED 403-435 MHz Helical 3.2 80 GREEN 435-470 MHz

UHF Wide Band 5.2 130 GREY 403-512 MHz Whip

800/900 MHz 3.3 83 WHITE 806-941 MHz Stubby, Quarterwave

800 MHz Dipole 8 200 RED 806-870 MHz 900 MHz Dipole 8 200 BLUE 896-941 MHz 800 MHz Whip 7 175 RED 806-870 MHz 900 MHz Whip 6.6 165 BLUE 896-941 MHz

Antenna Installation

Screw the threaded end of the antenna into the antenna receptacle located on

6.9 172 BLUE 162-174 MHz

3.2 79 BLACK 470-512 MHz

MAEPF-22057-B

REQUIRE

MAEPF-22058-B

MAEPF-22056-A

Getting Started (cont.)

Battery Installation

1. Turn off the radio and hold it with the back of the radio facing up.

2. Place the two notched tabs of the battery (located at the inside base of the battery) into the metal cutouts of the radio (located at the inside base of the radio).

3. Rotate the battery toward the radio and press the top of the battery into the radio until both battery release levers "click" into place.

Note: The battery is shipped uncharged. Batteries must be charged before use. (See "Battery Information" section.)

Battery Removal

1. Turn off the radio and hold it so that the battery side of the radio is tilted down.

2. Press down on the two battery release levers.

3. With the release levers pulled down, the top of the battery will come apart from the radio.

4. Remove the battery completely away from the radio.

7 Getting Started (cont.)

Universal

Connector

Seal

Push

Off

Universal Connector Seal Removal

WARNING:

• When not in use, keep the side connector covered using the universal connector seal provided.

• Touching the top two contacts of the universal connector when transmitting could result in a radio frequency burn.

If the universal connector seal is attached to the radio:

1. Grasp the radio as illustrated, and push your thumb against the tabbed portion of the seal with enough force to unsnap the universal connector seal from the radio.

Note: An arrow on the top surface of the seal indicates the direction of thumb pressure to unsnap the seal.

2. Rotate the seal around the antenna to move it away from the universal connector; slide the seal off of the antenna and completely away from the radio.

Belt Clip Installation and Removal

Note: To avoid damage to the radio's surface, installation and removal of the belt clip assembly should be done with the battery removed from the radio.

Installing the Belt Clip

1. Insert a pencil or equivalent size instrument between the inside of the belt clip and the metal clip assembly so as to hold the metal clip partially sprung (metal clip should be approximately parallel with the plastic portion of the belt clip).

2. Align the metal tabs of the belt clip with the plastic slots of the battery housing.

3. Slide the belt clip onto the battery, pushing firmly until a click is heard.

4. Remove the pencil from the clip.

Removing the Belt Clip

1. Insert a pencil, or equivalent size instrument between the inside of the belt clip and the metal clip assembly to hold the metal clip partially sprung (metal clip should be approximately parallel with the plastic portion of the belt clip).

2. Push the flat blade of a #2 slotted screwdriver (or like instrument) between the battery housing and the belt clip release tab.

3. While performing step 2, slide the belt clip out and away from the battery, and remove the screwdriver.

4. Remove the pencil from the clip.

MTX

4 three-position  (ABC) toggle switch

5 LED indicator

6 emergency button

2 channel selector

1 on/off/volume control

13 universal

connector

7 side button 1

8 side button 2 9 side button 3

(monitor)

10 push-to-talk (PTT) switch

12 microphone

14 noise-

cancelling port

A B C

11 display

3 two-position concentric switch

15 keypad

HOME

8 Getting Started (cont.)

Controls, Switches, Indicators, and Connectors

1 On/Off/Volume Control – Turns the radio on and off and adjusts the volume

level.

2 Mode Selector Knob – Selects the operating system/mode; maximum of 15

systems plus conventional operation.

3 Two-Position Concentric Switch – Not used. 4 Three-Position (A B C) Toggle Switch – Programmed at shipment to turn scan

on (position B) and turn scan off (position A). Position C not programmed at shipment.

5 LED Indicator – Indicates the radio's operating status; green/red light-emitting

diode (LED). (See “Indicator LED Indications" paragraph.)

6 Orange Top Button – Programmed at shipment as telephone receive button.

Programmable via RSS for telephone encode or volume set.

7 Side Button 1 – Programmed at shipment to control the display backlight; also,

when scanning, used to delete a “nuisance channel”. Used as the “select” button when programming the radio.

8 Side Button 2 – Unprogrammed at shipment, but programmable via RSS for

call alert (page) encode.

9 Side Button 3 – Programmed at shipment as the “Private ConversationTM”

response button.

10 Push-To-Talk (PTT) Switch – Engages the transmitter and puts the radio in the

transmit mode.

11 Display – Provides visual information about many of the radio’s features. 12 Microphone Port – Accepts voice input to the radio’s microphone. 13 Universal Connector – Provides access for programming, testing, and

accessory connections.

14 Noise-Cancelling Port – Reduces background noise during transmission. 15 Keypad – Provides numeric entry of ID numbers, phone numbers, etc.

MTX Series Radio – Model B5

9 Getting Started (cont.)

MTX

4 three-position (ABC) toggle switch

5 LED indicator

6 orange top button

2 channel selector

1 on/off/volume control

13 universal

connector

7 side button 1

8 side button 2 9 side button 3

10 push-to-talk

(PTT) switch

12 microphone

14 noise-

cancelling port

A B C

11 display

3 two-position concentric switch

HOME

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

15 keypad

MTX Series Radio — Model B7

10 Getting Started (cont.)

Controls, Switches, Indicators, and Connectors

1 On/Off/Volume Control

Turns the radio on or off, and adjusts the volume level.

2 Mode Selector Knob

Selects the operating system/mode; maximum of 15 systems plus conventional operation.

3 Two-Position Concentric Switch

Programmable; unprogrammed at shipment.

4 Three-Position (A B C) Toggle Switch

Programmed for scan. Programmed at shipment to turn scan on (position A) and turn scan off (position B). Position C not programmed at shipment.

5 LED Indicator

Indicates the radio’s operating status; green/red light-emitting diode (LED). (See “Indicator LED Indications” paragraph.

6 Orange Top Button

Programmable. Programmed at shipment as telephone receive button. Programmable via RSS for telephone encode/volume set.

7 Side Button 1

Programmable. Programmed at shipment to control the display backlight; also, when scanning, used to delete a “nuisance mode”; also, used as the “select” button when programming the radio.

8 Side Button 2

Programmable. Unprogrammed at shipment, but programmable via RSS for call.

9 Side Button 3

Programmable. Programmed at shipment as the “Private Conversation™ button.

10 Push-To-Talk (PTT) Switch

Engages the transmitter and puts the radio in the transmit mode.

11 Display

Provides visual information about many of the radio’s features.

12 Microphone Port

Accepts voice input to the radio’s microphone.

13 Universal Connector

Provides access for programming, testing, and accessory connections.

14 Noise-Cancelling Port

Reduces background noise during transmit.

15 Keypad

Provides control and data interface for many of the radio’s features.

10 Getting Started (cont.)

HOME

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

Keypad

The 6-key (model B5) or 15-key (model B7) keypad activates, or inputs data for, many of your MTX Series radio’s features. Both keypads’ top three keys access many of the radio’s features. In addition, the 15-key keypad’s upper 12 keys are arranged, and function, like a standard telephone keypad. The bottom three keys of both keypads are the left arrow key, HOME key, and right arrow key.

Selecting a Feature

A unique feature of the MTX Series radio is its use of the display to give you quick access to many of the radio’s features without requiring a dedicated mechanical key for each feature.

After pressing either of the two arrow keys, the names of the features (PAGE, CALL, MUTE, etc.) are shown on the display, three at a time, with key-like outlines to make them look like keys.

Selection of features is controlled by the three keys directly below the feature names shown on the display: the left key selects the left feature, the middle key selects the middle feature, and the right key selects the right feature.

Left and Right Arrow Keys

The left ( ) and right ( ) arrow keys are used to scroll the display forward or backward through the radio’s features and lists. There is no end point to the list, so if you continue to scroll in one direction, the display will “wrap around” back to the beginning of the list. If you hold either key down, the display will scroll at a faster rate until the key is released.

The left arrow key is also used for editing when you are entering information manually from the keypad. Pressing the left arrow key will backspace, and erase the display, one character at a time. If you have erased all the digits, an additional press of the left arrow key will return the display back to the preprogrammed list.

HOME Key

The HOME key will always return you to the home display. This is the current system/mode. In addition, if you are using a feature that requires it, pressing the HOME key will also cause information to be saved in the radio’s memory before going to the home display. Some radio features will automatically go to the home display when they are completed, without having to press the HOME key, thus reducing the number of keypresses required.

11 Getting Started (cont.)

Display

The MTX Series radio has a 14-character, one-line liquid-crystal display (LCD), which displays either alphanumeric messages or feature-selection information. Above the character display are status annunciators that indicate some of the radio’s operating conditions.

Display Light

If poor light conditions make the display difficult to read, turn on the radio’s display light by pressing the light button (typically side button 1). The light will remain on for a preprogrammed time period before it turns off automatically, or you can turn it off immediately by pressing the light button again (the light can be turned off only if the radio is not in a feature menu). If, while the light is on, any key or button is pressed (except for the PTT switch), any knob is turned, or any toggle switch is moved, the light will remain on for an additional time period.

Status Annunciators

The status annunciators indicate the status of certain radio functions:

• Battery Status ( ) – Flashes when the battery is low.

• Carrier Squelch ( ) – Indicates the type of receive squelch in effect for the

active conventional mode; ON = CARRIER SQUELCH; OFF = CODED

SQUELCH.

• Call Received ( ) – Flashes when a call, page, or phone call is received.

• Scan ( ) – Indicates when the radio is scanning; ON = SCANNING; OFF =

NOT SCANNING.

• Programming Mode ( ) – Indicates when the radio is in the programming

mode; ON = IN PROGRAMMING MODE; OFF = NOT IN PROGRAMMING

MODE.

• Direct ( ) – Indicates whether you are talking directly to another radio

(talkaround), or through a repeater; ON = DIRECT; OFF = REPEATER.

12 Getting Started (cont.)

Alert Tone Indications

The MTX Series radio generates a number of audible tones to indicate radio

operating conditions:

Note: Some tones are programmable.

• Low Battery – A low-batter y condition is indicated by a high-pitched, cricket-

like “chirp-chirp” when the PTT switch is released following a transmission.

• Successful Power -Up – A short, medium-pitched tone when the radio is first

turned on indicates that the radio has passed its power-up self test and is ready for use. (Optional).

• Unsuccessful Power -Up – A short, low-pitched tone when the radio is first

turned on indicates that the radio has failed its power-up self test and is not ready for use. Contact your service representative for service.

• Smart PTT (Conventional Modes Only) – If you press the PTT switch while

the channel is busy, you will hear a continuous, low-pitched alert tone, indicating that no transmission is possible on this channel. This tone will continue until the PTT switch is released. (Optional).

• Invalid Mode – A continuous, low-pitched tone is heard when an invalid or

unprogrammed operation is attempted on the radio.

• Valid (Good) Keypress – A short, medium-pitched tone when a keypad key is

pressed indicates that the keypress was accepted.

• Invalid (Bad) Keypress – A short, low-pitched tone when a keypad key is

pressed indicates that the keypress was rejected.

• Failsoft (Trunked Systems Only) – A faint “beeping” tone every ten seconds

indicates that the radio is operating in the failsoft mode.

• Time-Out T imer Warning – Your radio’s time-out timer limits the length of

your transmission time. When you are pressing the PTT switch (transmitting), a short, low-pitched warning tone will sound four seconds before the allotted time will expire.

• Time-Out T imer T imed-Out – If you hold down the PTT switch longer than the

time-out timer’s allotted time, a continuous, low-pitched tone will sound, indicating that your transmission has been cut off. This tone will continue until the PTT switch is released.

• Phone Busy – A “bah-bah-bah-bah” tone when telephone interconnect is

accessed indicates that all available modes are busy and the radio is in queue for the next available phone line.

• Call Alert™ (Page) Received – A group of four medium-pitched tones every

five seconds indicates that a Call Alert page has been received.

• Call Alert™ (Page) Sent – A single medium-pitched tone, followed by a group

of four medium-pitched tones indicates that a Call Alert page has been received by the target radio.

13 Getting Started (cont.)

Alert Tone Indications (cont.)

• Private Conversation™ Call Received – A group of two medium-pitched

tones (800MHz radios only) indicates that your radio has received a Private

Conversation call. For all other frequency radios and for enhanced Private

Conversation, this sequence will be repeated every five seconds for

approximately 20 seconds.

• Trunked System Busy (Trunked Systems Only) – A “bah-bah-bah-bah” tone

when a trunked system is accessed indicates that all available modes are

busy and the radio is in queue for the next available mode.

• Call Back (Trunked Systems Only) – A group of two medium-pitched tones

repeated twice indicates that a mode is now available for your previously

requested transmission.

Indicator LED Indications

The indicator LED on top of the radio indicates radio operating conditions: A. With the PTT switch pressed (radio transmitting)

• Continuous red LED—normal transmission

• LED unlit—radio is not transmitting

• Blinking red light—low battery

B. With the PTT switch released (radio receiving)

• Blinking red light—mode busy (conventional modes only)

• Blinking green light—receipt of a telephone call, Private Conversation

call, or Call Alert page

Time-Out Timer

The time-out timer feature limits the amount of time you can continuously transmit on a mode. If you hold down the PTT switch longer than the allotted time:

• a tone will be generated four seconds before termination of your

transmission to warn you that your conversation is about to be cut off.

• your transmission is terminated and an aler t tone is emitted until the

PTT switch is released.

Trunked or Conventional Radio Operation

Your MTX Series radio is capable of both trunked and conventional operation:

• Trunked Operation – During trunked operation, your MTX Series radio of fers

a number of advantages, including fast system access, enhanced privacy, and

ease of operation. In a trunked system, there is no need for you to monitor a

mode before transmitting.

• Conventional Operation – During conventional operation, your MTX Series

radio performs like a conventional two-way radio. That is, you must monitor

the selected mode before transmitting. If the radio's red LED is blinking in the

receive mode, the channel is busy. As an option, the Smart PTT feature is

available. If the PTT switch is pressed and the channel is busy, a continuous

low-pitched tone will be heard. The tone will continue until the PTT switch is

released. This will ensure that you are observing standard two-way radio

transmission protocol by not “talking over” someone who is already

transmitting.

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

14 Basic Radio Operation

Radio On/Off and Power-Up

1. Turn the radio on by rotating the volume control clockwise. The radio goes through a power-up self check and, if it passes the check, the display momentarily shows “SELF TEST.”

If the radio fails the self check, the display shows “ ERROR XX/XX” (where XX/XX is alphanumeric), accompanied by a low-pitched tone. Turn the radio off, check the battery, and turn the radio back on. If the radio still does not pass the self check, a problem exists in the radio. Contact your nearest Motorola Service Shop.

Note: The power-up self check verifies that the radio’s microprocessor-based systems are working, but it does not check all of the rf components, nor does it check the operation of all customer-specific features. Motorola recommends that the functionality of the radio be periodically checked by an authorized Motorola service shop.

2. Turn the radio off by rotating the volume control fully counterclockwise until you hear a click.

Selecting a Trunked System and Mode

Before you can send or receive on a trunked

system, the radio must be set to the desired system and mode; in trunked operation, a mode is a trunked talkgroup and all features “slaved” to it. Your radio can support up to 15 different trunked systems, selected by mode selector knob positions 1 through

15. Each system can have up to 10 different modes

associated with it. To select a system and mode:

Turn the radio on and set the mode selector knob to the desired system position (1 through 15).

2. Press the right arrow key ( ) until “SUB” appears on the display.

ABC

DEF

15 Basic

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

Radio Operation (cont.)

3. Press the key below “SUB.” The current system and mode are displayed; the system is on constantly and the mode is flashing.

4a. Press the right arrow key ( ) until the desired

system and mode appear on the display.

4b. Enter the number (1 through 10) of the desired

mode from the keypad. The display shows the selected system and mode.

5. Press the HOME key or the PTT switch to store the displayed system and mode. This will become the new “home” (default) display. If you press the PTT switch, you will also transmit on the displayed system and mode (see “Transmitting”; “Trunked Systems”).

Selecting a Conventional Mode

Before you can send or receive in conventional

operation, the radio must be set to the desired mode; in conventional operation, a mode is a conventional channel and all features “slaved” to it. Mode selector knob position 16 selects conventional operation. Your radio can have up to 10 different conventional modes associated with it. To select a mode:

1. Turn the radio on and set the mode selector knob to the conventional operation position (16).

16 Basic

ABC

DEF

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

Radio Operation (cont.)

2. Press the right arrow key ( ) until “SUB” appears on the display.

3. Press the key below “SUB.” The mode is displayed.

4a. Press the right arrow key ( ) until the desired

mode appears on the display.

4b. Enter the number (1 through 10) of the desired

mode from the keypad. The display shows the selected mode.

5. Press the HOME key or the PTT switch to store the displayed mode. This will become the new “home” (default) display. If you press the PTT switch, you will also transmit on the displayed mode (see “Transmitting”; “Conventional Modes”).

17 Basic Radio Operation (cont.)

Receiving

Trunked Systems

1. Turn the radio on and select the desired system and mode (see “Selecting a Trunked System and Mode”).

2. Listen until you hear a transmission, then adjust the volume control for a

comfortable listening level.

3. Your radio is now set to receive calls on the selected system and mode.

Note: If the mode selector knob is placed on an unprogrammed system (blank system), the display will show “UNPROGRAMMED” and you will hear an “invalid mode” tone until the mode selector knob is rotated to a programmed (valid) system.

Conventional Modes

1. Turn the radio on and select the desired conventional mode (see “Selecting a Conventional Mode”).

2. Listen until you hear a transmission, then adjust the volume control for a

comfortable listening level.

3. Your radio is now set to receive calls on the selected mode.

Notes:

• If the mode selector knob is placed on an unprogrammed mode (blank

mode), the display will show “UNPROGRAMMED” and you will hear an “invalid mode” tone until the mode selector knob is rotated to a programmed (valid) mode.

• If the mode is busy, the radio’s red LED will blink in the receive mode.

18 Basic Radio Operation (cont.)

Transmitting

Trunked Systems

1. Turn the radio on and select the desired system and mode (see “Selecting a Trunked System and Mode”).

2. Press and hold the PTT switch on the side of the radio and speak slowly and clearly into the microphone area. The red LED will light while the radio is transmitting. When you have finished talking (transmitting), release the PTT to listen (receive).

Notes:

• If you hear a busy signal (a low-frequency “bah-bah-bah-bah”), release the

PTT switch and wait for a call-back tone (sounds like “di--di-dit”). When you hear the call-back tone you will have three seconds to press the PTT switch. This lets you make your call without getting another busy signal.

• If you hear a continuous talk-prohibit tone when you press the PTT

switch, you will not able to transmit. The radio may be out of range.

• To take full advantage of the radio’s noise-cancelling feature, do not block

the noise-cancelling port when transmitting.

Conventional Modes

1. Turn the radio on and select the desired mode (see “Selecting a Conventional Mode”).

2. Listen for a transmission and adjust the volume control for a comfortable listening level.

3. Do not interrupt another user. When the radio is receiving, the Smart PTT feature causes the red LED to blink indicating that the mode is currently busy and that you should not transmit.

4. When the mode is clear, press and hold the PTT switch on the side of the radio, and speak slowly and clearly into the microphone area. The red LED will light while the radio is transmitting. When you have finished talking (transmitting), release the PTT to listen (receive).

Notes:

• If a conventional mode is programmed for receive-only operation, any

attempt to transmit on that mode will cause an invalid-mode tone to sound until the PTT is released.

• To take full advantage of the noise-cancelling feature, do not block the

noise-cancelling port when transmitting.

19 General Radio Features Operation

Low-Battery Alert (Programmable)

The radio will emit an alert tone to indicate a low-battery condition if the battery voltage falls below the low-voltage level. When the radio is transmitting, the tone is emitted when the PTT is released; when the radio is receiving, the tone is emitted when the low-battery condition is detected.

Variable RF Power Level

VHF and UHF radios can have more than one power level. High power can be programmed on those modes where the frequency is licensed for high power, and low power can be programmed on all other modes.

ABC

DEF

MNO

JKL

GHI

PRS

TUV

WXY

HOME

DEF

ABC

20 General

Radio Features Operation

(cont.)

Muting the Keypad Tones

The radio’s keypad tones, normally heard each time a keypad key is pressed, can be turned off (muted) or on (unmuted) at your discretion. To use the keypad mute feature:

1. Press the right arrow key ( ) until “MUTE” appears on the display.

2. Press the key below “MUTE.” The current mute state (“TONES ON” = keypad tones unmuted; “TONES OFF” = keypad tones muted) appears on the display for a few seconds.

Then, the display shows “ON” and “OFF.”

3. Press the key below the desired mute state (on or off). The radio automatically returns to the home display.

21 General

O.K. AS IS O.K. AS MA

ISS.

REVISION

RLS

CORRECTED AS MARKED

ILLUSTRATOR DATEENGINEERDATE PROGRAM DISK

DESCRIPTION

TECHNICAL PUBLICATIONS DEPT

DWG. NO.

LETTERING SIZE: REQUIRES:

EDITOR DATECHECKERDATE

Illustrator

MAEPF-22068

Jedi ABC Switch A Position

12/13/91

B93

JWB

12/18/91

12/13/91

12/18/91

12/18

Up-date

7/9/

A B C

Radio Features Operation

(cont.)

Scan Operation

The scan feature allows you to monitor activity on different trunked or conventional modes by scanning a “scan list” of modes. Each scan list can contain as many as 16 different members; each radio can have up to 16 different scan lists. The members to be scanned in a scan list can be programmed with the radio service software (RSS).

All MTX Series radios support automatic scanning (autoscan), which is programmed into the radio through the RSS. With this feature, the radio begins scanning whenever you select a mode to which a scan list is assigned (strapped). The radio will continue autoscanning until you select a mode that does not have autoscan enabled.

Turning Scan On/Off Using the Three-Position (ABC) Toggle Switch

1. To turn scan on, place the toggle switch in the “B” (scan on) position.

2. The scan status annunciator appears on the display, indicating that scan is active, and the radio begins scanning. The scan annunciator will remain on until scan is turned off.

3. To turn scan off, place the toggle switch in the “A” (scan off) position.

4. The scan status annunciator turns off, indicating that scan is off, and the radio stops scanning.

Deleting Nuisance Modes When the radio scans to a mode that you do not

wish to hear (nuisance mode), you can temporarily delete the mode from the scan list.

1. When the radio is locked onto the mode to be deleted, press the nuisance mode delete button (normally side button 1). A valid-keypress chirp is heard, indicating that the mode has been deleted.

2. The radio continues scanning the remaining modes in the list. To resume scanning the deleted mode, you must either leave and reenter scan

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