Icom IC-F420S User Manual

INSTRUCTION MANUAL
VHF TRANSCEIVER
UHF TRANSCEIVER
This device complies with Part 15 of
the FCC Rules. Operation is subject to
the condition that this device does not
cause harmful interference.
iF320
iF310
iF410
iF420
American Communication Systems
Discover the Power of Comm unications
™
TO ORDER – VISIT http://www.ameradio.com

Icom IC-F420S Specifications

General

Frequency Range	400-470 MHz
Power Output	5W
Channel Capacity	16 channels
Modulation Type	16K0F3E
Battery Life	10 hours
Channel Spacing	25 kHz

Summary

Important Information and Cautions

Reading and Saving the Manual

Emphasizes reading all instructions before use and keeping the manual for future reference.

Explicit Definitions of Warnings

Explains the meaning of WARNING, CAUTION, and NOTE indicators for user safety.

Critical Safety Cautions

Warns against improper electrical connections, environmental exposure, and unauthorized access.

Operational Precautions

Environmental Handling Guidelines

Details safe operating temperatures, placement, and ventilation requirements for the transceiver.

Cleaning and Maintenance Advice

Warns against using chemical solvents for cleaning to prevent surface damage.

FCC Compliance Warning

Notifies users that unauthorized modifications void FCC operating authority.

Panel Description and Controls

Front Panel Overview

Identifies and locates all controls on the transceiver's front panel.

Function Display Indicators

Explains the meaning of icons and readouts on the transceiver's display.

Key Functions and Operation

Details the operation of volume, channel keys, power switch, and microphone connector.

Programmable Function Keys

Explains the assignment and use of various programmable function keys.

Operation Procedures

Turning Power ON and Startup

Guides through powering on the transceiver, including password entry.

Channel Selection Methods

Details different methods for selecting operating channels based on system setup.

Receiving and Transmitting Basics

Explains fundamental steps for receiving calls and transmitting signals.

Advanced Transmission Features

Covers Tx code channel/number selection and DTMF transmission capabilities.

Connection and Maintenance

Rear Panel and Connections Diagram

Illustrates the rear panel layout and connection points for accessories.

Supplied Accessories List

Lists and describes the components included with the transceiver.

Mounting the Transceiver

Provides instructions for securely mounting the transceiver using the supplied bracket.

Optional Unit Installation

Details the installation process for optional UT-96/UT-105 units.

Antenna, Fuse, and Cleaning

Covers antenna considerations, fuse replacement, and basic cleaning procedures.

Optional SmarTrunk II™ Operation

SmarTrunk II™ Modes and Capabilities

Explains SmarTrunk II™ functions and conventional channel compatibility.

Telephone and Subscriber Calling

Guides on placing, receiving, and answering calls within the SmarTrunk II™ system.

Call Management and Redial Functions

Details terminating calls, last number redial, and memory speed-dialing.

Programming and Dispatch Features

Covers programming speed dial, system busy indications, and dispatch operations.

Emergency Call Procedure

Outlines the steps for initiating an emergency call.

Clear Channel Alerting

Explains the process of searching for and alerting to available open channels.

Available Options

External Speakers

Details the specifications for optional external speakers SP-5 and SP-10.

Microphone Options

Describes the HM-100T/TA DTMF and HM-100 normal microphones.

Optional System Units

Lists optional units including 5-tone unit, SmarTrunk II™ logic board, and ACC cable.