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Motorola GP-68

Motorola GP-68
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Portable Radios
GP 68
User Manual

Other manuals for Motorola GP-68

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Motorola GP-68 Specifications

General IconGeneral
Channels16
Power Output1-5W (VHF) or 1-4W (UHF)
Frequency Range136-174 MHz, 403-470 MHz
BatteryNiMH
Weight420g with battery

Summary

Copyright Information

Introduction

User Guide Scope

Describes operation for radios with and without keypads, noting keypad symbols.

Packing Information

Radio Controls and Features

Key Controls and Connectors

Details on power, volume, channel selection, antenna, display, monitor, and PTT buttons.

Functional Buttons and Audio Ports

Descriptions of Signal, Squelch, Low Power, Scan, Microphone, Speaker, and Backspace buttons.

Navigation, Ports, and Display Features

Details on scroll buttons, accessory/SCI ports, LCD screen, and keypad.

ID, Lock, and Battery Mechanisms

Explanation of PTT ID, keypad lock, battery pack, and latches.

Getting Started

Antenna Installation and Removal

Instructions for attaching and detaching the radio's antenna.

Belt Clip Attachment and Removal

Guides for attaching and removing the belt clip.

Battery Installation and Removal

Steps for installing and removing the battery pack.

Charging NiCd Battery Packs

Instructions and warnings for charging NiCd battery packs.

Initial Battery Charging

Guidelines for fully charging a new battery for maximum performance.

Subsequent Battery Charging

Table providing guidelines for recharging used batteries.

Charging with Wall Charger

Instructions for charging the battery using a wall charger.

Charging with Desktop Charger

Procedure for charging the battery using a desktop charger.

Quick Charge Desktop Charger Usage

How to use the quick charge desktop charger and associated cautions.

Basic Operations

Powering the Radio On

Steps to turn the radio on using the On/Off and Volume knob.

Powering the Radio Off

Steps to turn the radio off using the On/Off and Volume knob.

Adjusting Volume Level

How to increase or decrease the radio's volume level.

Selecting a Channel

How to select a channel using the Channel Selector knob.

High and Low Power Output

Toggling between high and low transmit power for clarity or battery life.

Transmitting a Message

Steps for pressing PTT, speaking into microphone, and transmitting.

Receiving Messages

Instructions for releasing PTT and listening for incoming messages.

Additional Operations

Display Backlight Control

How to turn the display backlight on and off.

PTT ID Functionality

Explanation of transmitting identification codes with PTT.

Locking and Unlocking Radio Functions

How to lock and unlock radio buttons to prevent unintended use.

Squelch Mode Selection

Understanding and changing between Carrier, Coded, and Signalling Squelch modes.

Setting Squelch Level

Adjusting the squelch threshold to filter weak signals.

Scan Operations

Initiating Channel Scanning

How to start monitoring a list of pre-programmed channels.

Deleting Nuisance Channels

Temporarily removing channels with unwanted signals from the scan list.

DTMF Telephone Interconnect

Placing a Telephone Call

Steps to initiate a call to a landline telephone number.

Hanging Up a Telephone Call

Procedure to disconnect from a telephone call.

Last Number Redial

How to redial the last manually dialed phone number.

Storing Phone Numbers

How to store phone numbers and access/deaccess codes in memory.

Displaying Stored Numbers

How to view stored phone numbers or access/deaccess codes.

Voice Selective Call (Optional)

Receiving Voice Selective Calls

How the radio indicates and handles incoming individual, group, or all calls.

Sending Voice Selective Calls

Steps to initiate a voice selective call using the PTT button and Call ID.

Special Programming Mode (SPM)

Entering SPM Mode

Procedure to turn the radio off and on while holding a button to enter SPM.

Exiting SPM Mode

How to exit the Special Programming Mode by turning off the radio.

SPM Browse Menu Navigation

Overview of the SPM menu items and navigation using the Channel Selector knob.

Editing SPM Parameters

Editing the Channel Scan List

How to include or exclude channels from the scan list within SPM.

Editing Phone AccessDeaccess Codes

Procedure to edit phone access and deaccess codes in SPM.

Editing Time-Out Timer Duration

How to set or disable the time-out timer for transmissions in SPM.

Setting Selective Call Tone Status

Enabling or disabling audible alerts for Voice Selective Calls.

Setting Sidetones Status

Enabling or disabling DTMF sidetones for transmission feedback.

Setting Alert Tone Volume

Adjusting the volume for alert tones or linking it to the main volume.

Setting Battery Saver Status

Configuring battery saver modes (Off, Normal, Enhanced) to conserve power.

Setting Battery Type

Configuring the radio for Alkaline or NiCd battery types for accurate alerts.

Setting Accessory Sense Option

Defining accessory type (Autosense, Headset, Speaker Mic) for proper function.

LCD Segments and Indicators

Understanding Display Indicators

Explanation of icons like TX, LOW, CTCSS, SCAN, BATT, SAVE.

Signal Strength Bar Indicators

How bar segments indicate received signal strength.

Alert Tone Indicators

Successful Power-Up Tone

Indicates the radio passed its self-test and is ready.

Unsuccessful Power-Up Tone

Indicates the radio detected an error during power-up.

Valid Button Press Tone

A short, high-pitched tone for valid button presses.

Invalid Button Press Tone

A short, low-pitched tone for invalid button presses.

Low Battery Tone

Three low-pitched tones indicating a low battery condition.

DTMF Sidetones

Each DTMF tone is heard as it is transmitted.

Time-Out Timer Alert Tone

A low-pitched continuous tone indicating transmission has been disabled.

Individual Selective Call Decode Tone

Two short ringing tones for decoded Individual Selective Calls.

Acknowledgment ID Decode Tone

A short ringing tone for a correct Acknowledgment ID.

GroupAll Call Selective Call Decode Tone

Two medium-pitched tones for decoded Group or All Calls.

Cloning Mode Start-up Tone

A short ringing tone indicating entry into Cloning mode.

Nuisance Channel Delete Tone

Two medium-pitched tones for temporarily deleting a channel from the scan list.

Radio to Radio Cloning

Serial Communications Interface (SCI)

Interface used for radio configuration and cloning.

Cloning Procedure

Steps to clone radio contents using a cloning cable and SCI port.

Cloning Error Conditions

Table of error messages and their solutions during cloning.

Safe and Efficient Operation

RF Energy Exposure Guidelines

Operating procedures to ensure RF exposure is within FCC guidelines.

Electromagnetic InterferenceCompatibility

Advice on turning off radio in sensitive areas and potential EMI sources.

Potentially Explosive Atmospheres Safety

Precautions for using the radio in areas with explosive atmospheres.

Blasting Caps and Areas Safety

Warning to turn off radio near blasting operations to avoid interference.

Vehicle Air Bag Safety

Instruction not to place radios in air bag deployment areas to prevent injury.

Recycling and Disposal of NiCd Batteries

NiCd Battery Recycling and Disposal

Information on recycling NiCd batteries as hazardous waste.

Licensing and Service Information

Radio Licensing Requirements

Information on FM radio communication frequencies and local agency requirements.

Radio Service and Repair

Guidance on obtaining service or repairs from authorized dealers.

Troubleshooting

Radio is Dead Troubleshooting

Diagnosing and resolving issues when the radio shows no signs of life.

NiCd Battery Charging Issues

Troubleshooting problems with NiCd battery charging or short life.

Alkaline Battery Life Issues

Addressing short battery life with alkaline batteries, especially at high power.

Radio Communication Issues

Resolving problems where the radio cannot communicate with others.

Unwanted Noise or Conversations

Troubleshooting receiving unwanted signals or noise.

Limited Talk Range Troubleshooting

Addressing issues related to reduced radio range.

Constant Static from Speaker

Diagnosing and fixing constant static or interference from the speaker.

Troubleshooting Without Success

Steps to take if troubleshooting attempts do not resolve the issue.

Accessories

Battery and Charging Accessories

List of available battery packs, chargers, and transformers.

Available Antennas

List of various UHF and VHF antennas for the radio.

Audio and Signalling Accessories

List of headsets, earbuds, and adapters for audio and signalling.

Carrying Cases and Accessories

List of belt clips and waterproof bags for carrying the radio.

Radio Cloning Accessories

List of cloning and programming cables for radio-to-radio transfer.

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