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Icom IC-F4GT User Manual

Icom IC-F4GT
32 pages
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INSTRUCTION MANUAL
UHF TRANSCEIVER
iF4GT/GS
iF3GT/GS
VHF TRANSCEIVER
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Icom IC-F4GT Specifications

General IconGeneral
Frequency Range136-174 MHz
Power Output5W
ModeFM
Voltage7.2V
Battery LifeApproximately 10 hours

Summary

Foreword and Definitions

Explicit Definitions

Defines DANGER, WARNING, CAUTION, and NOTE terms used in the manual.

DANGER!

Indicates potential for death, serious injury, or explosion.

WARNING!

Indicates potential for personal injury, fire, or electric shock.

CAUTION

Indicates potential for equipment damage.

NOTE

Indicates minor issues with no risk of injury.

Precautions for Safe Operation

DANGER! Battery Shorting Hazard

Never short battery terminals to prevent damage or explosion.

WARNING! Antenna Proximity Safety

Avoid close body contact with antenna during transmission for optimal performance.

WARNING! High Volume Audio Hazard

Avoid high volume levels with audio accessories to prevent injury.

CAUTION: Use Only Icom Accessories

Use only Icom battery packs/chargers to maintain performance and warranty.

DO NOT Push PTT Unnecessarily

Avoid unnecessary PTT use to conserve battery and prevent accidental transmission.

DO NOT Use in Extreme Temperatures

Avoid extreme temperatures and direct sunlight for transceiver operation.

DO NOT Modify Transceiver

Do not modify the transceiver to maintain functionality and warranty.

Water Resistance, Not Waterproof

Protect transceiver from rain; it is water resistant, not waterproof.

Panel Description and Controls

Switches, Controls, and Connectors

Identifies physical components like switches, keys, and connectors on the transceiver.

Volume Control and Power

Controls power ON/OFF and adjusts audio level.

Programmable Keys (S1, S2, P0-P3)

Keys assignable by dealer for various functions.

PTT Switch

Push-to-talk button for transmitting and releasing to receive.

Up/Down Channel Keys

Keys used to select the operating channel.

10-Key Pad for DTMF/Channel Entry

Keypad for entering DTMF codes and selecting channels.

Antenna Connector

Port for connecting the transceiver's antenna.

SP/MIC Jack

Connector for external speaker-microphone accessories.

Function Display Overview

Displays channel, status, and indicator information.

Function Display Indicators

Explains the meaning of various icons and indicators on the display.

Transmit Indicator

Indicates when the transceiver is transmitting.

Busy Indicator

Shows when a signal is being received or squelch is open.

Low Power Indicator

Appears when the transceiver is set to low output power.

Scrambler Indicator

Indicates when the voice scrambler function is active.

Key Lock Indicator

Shows when the keypad lock function is enabled.

Bell Indicator

Alerts to incoming 2/5Tone calls.

Audible Indicator

Indicates when the monitor function is active.

Low Battery Indicator

Alerts to low battery capacity or an exhausted battery.

Alphanumeric Indicator

Displays channel numbers, names, or DTMF codes.

Accessories and Attachment

Accessory Attachment and Supplies

Details on attaching accessories and listing supplied items.

Antenna Attachment

Instructions for connecting the antenna to the transceiver.

Belt Clip Attachment

Instructions for securing the belt clip to the transceiver.

Battery Packs and Charging

Battery Pack Replacement Procedure

Step-by-step guide for replacing the battery pack.

Battery Pack Specifications

Table of battery pack models, capacity, charging, and life.

Battery Pack Handling Cautions

Crucial safety warnings for battery shorting, incineration, and water exposure.

BC-144N Rapid Charging

Instructions for rapid charging using the BC-144N charger.

Spacer Combination for Charging

Properly attaching spacers for correct charging.

BC-121N Multi-Charger Operation

Charging multiple battery packs simultaneously with BC-121N.

BC-137/BC-146 Regular Charging

Instructions for regular battery charging with specific chargers.

Charging Cautions and Best Practices

Guidelines for optimal charging, temperature, and battery life.

Optional Battery Case Usage

How to install batteries in the optional battery case.

Battery Case Handling Cautions

Safety warnings for battery case installation and care.

Programmable Functions

General Functionality Overview

Introduction to programmable functions and their activation methods.

Keypad Lock Function

Locks all programmable switches except the lock switch itself.

Priority Channel Selection

Function to quickly select a pre-programmed channel.

Scan Function

Scans through a group of channels to find active signals.

High/Low Output Power Setting

Adjusts transmit power between high and low levels.

Scrambler Function for Security

Enhances communication security with an optional scrambler unit.

Beep Tone Confirmation

Enables audible confirmation beeps for key presses.

Monitor Audible Function

Allows manual squelch opening to check channel status.

Talk Around Function

Switches between duplex and simplex modes for communication.

DTMF Transmission Methods

Sending DTMF codes manually or automatically.

DTMF Re-Dial Function

Re-transmits the last-used DTMF code with a single key press.

Emergency Function

Quickly sends emergency signals and ID to the Base Station.

Display Backlight Control

Settings for display backlight: OFF, AUTO, or CONTINUOUS.

Conventional Operation

Receiving and Transmitting Basics

Fundamental steps for receiving signals and transmitting voice.

Selective Call Procedure

Steps for initiating a selective call using tone signalling.

Tx Code Channel Selection

Choosing a specific Tx code channel for selective calling.

Manual 5-Tone Code Entry

Manually inputting 5-tone codes for transmission.

Transmitting Timer Notes

Information on Time-out and Penalty Timers during transmission.

Other Functions

DTMF Pager and Code Squelch

Functions for DTMF paging notifications and filtering unwanted audio.

Maintenance and Installation

Optional Unit Installation Guide

Step-by-step instructions for installing optional internal units.

Cloning Procedures

Cloning Overview and Methods

Transferring programmed data between transceivers or from a PC.

Transceiver-to-Transceiver Cloning

Procedure for cloning data between two units using a cable.

PC-to-Transceiver Cloning Procedure

Reference to HELP file for PC-based cloning operations.

Available Options

Battery Packs and Chargers

Details on optional battery packs, regular, and rapid chargers.

Internal Units and Options

List of optional internal units like tone modules and decoders.

Other Accessories and Cloning Tools

Includes microphones, headsets, antennas, cloning software, and cables.

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