Icom IC-F21GM User Manual

INSTRUCTION MANUAL
UHF GMRS TRANSCEIVER
iF21GM
This device complies with Part 15 of the FCC rules. Oper-
ation is subject to the following two conditions: (1) This de-
vice may not cause harmful interference, and (2) this
device must accept any interference received, including in-
terference that may cause undesired operation.

Icom IC-F21GM Specifications

General

Frequency Range	136-174 MHz
Channel Capacity	16 channels
Power Output	5W
Battery Life	Up to 12 hours
Channel Spacing	12.5/25 kHz
Mode	FM
Voltage	7.2V
Waterproof	IP54
Type	Portable
Operating Voltage	7.2V

Summary

Safety Training Information

Panel Description

Switches, Controls, Keys, and Connectors

Identifies the physical controls, switches, and connection ports on the transceiver.

LED Indicator

Explains the various states and meanings of the TX/RX indicator LED.

Accessories

Supplied Accessories

Lists the accessories that are included with the transceiver.

Antenna Attachment

Details the procedure for attaching the flexible antenna to the transceiver.

Belt Clip Attachment

Describes how to attach the belt clip to the transceiver for carrying.

Battery Packs

Battery Pack Replacement

Provides instructions on how to safely remove and replace the battery pack.

Battery Cautions

Highlights important warnings and safety precautions when handling battery packs.

Battery Charging

Explains the process and requirements for charging the transceiver's battery packs.

Optional Battery Case

Details the use of the optional battery case for alkaline batteries.

Set Mode

Selecting RF Output Power

Instructions for choosing between the available RF output power levels.

Setting Simplex/Duplex Operation

Procedure to configure the transceiver for simplex or duplex communication.

Setting CTCSS Tone Frequency

Guide to assigning CTCSS tone codes for quiet standby operation.

Setting DTCS Code

Instructions for assigning DTCS codes for quiet standby operation.

CTCSS Find Function

Details on how to detect CTCSS tone frequencies from received signals.

Operation

Receiving and Transmitting

Basic procedures for operating the transceiver to receive and transmit signals.

Monitor Audible Function

How to use the monitor function to check channel status (busy or idle).

Time-Out Timer

Explanation of the automatic transmission cutoff feature to prevent continuous transmission.

Power Save Function

Details on how the power save feature helps conserve battery life.

Setting Squelch Level

Adjusting the squelch to filter out unwanted background noise.

Auto Scan Function

How the auto scan feature automatically searches for active channels.

Wide/Narrow Selection

Instructions for switching between Wide FM and Narrow FM modes.

Option

Optional Battery Packs

Lists and describes the various optional battery packs available for the transceiver.

Optional Chargers

Details the different optional chargers for charging battery packs.

Other Optional Accessories

Lists additional optional accessories like speaker-microphones and headsets.