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Icom IC-41S - User Manual

Icom IC-41S
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INSTRUCTION MANUAL
i41S
UHF C.R.S.TRANSCEIVER

Table of Contents

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Icom IC-41S Specifications

General IconGeneral
ModulationFM
Voltage7.4 V DC
TypeHandheld Transceiver
Sensitivity0.25 μV (at 12 dB SINAD)
Selectivity70 dB
Power Output5 W
Operating Voltage7.4 V

Summary

Important Information and Warnings

Read All Instructions

Emphasizes the importance of reading all operating instructions before use.

Operating Notes

Busy Channel Operation

Advise to listen to the channel before transmitting to avoid interference.

Emergency Channels

Specifies emergency channels and notes on radio behavior when switched off on these channels.

Precautions for Safe Operation

Safe Handling Practices

Provides critical safety warnings regarding transceiver handling, transmission, and audio levels.

Environmental and Modification Warnings

Advises against exposure to extreme temperatures, water, and unauthorized modifications.

Panel Description and Controls

Front Panel Layout

Overview of the transceiver's front panel, highlighting key buttons and indicators.

Top Key Functions

Explains the operations and functions of the 'Top' key in different modes.

Side1 Key Functions

Describes the various functions and operations controlled by the 'Side1' key.

PTT and Channel Control Keys

Details the functions of the PTT, channel up/down, and volume control keys.

Function Display

Explains the information displayed on the transceiver's screen.

Scan;Tag Key Functions

Details the operations of the Scan/Tag key for scanning and channel tagging.

Scan Mode;Priority Scan Key

Explains the functions of the O•G•P/RS key for scan mode selection and repeater scan.

Priority and Power;Lock Keys

Describes the functions of the Priority/Set-P and LOW/Power/Lock keys.

Function Display Indicators

Explains the meaning of various indicators displayed on the transceiver screen.

Display Indicators

Details the remaining indicators on the transceiver display, including Bell, Quiet, and Battery.

Alphanumeric Display

Describes the alphanumeric display for channel numbers, names, and mode settings.

Function & Power Indicators

Explains the Function and Low Power indicators on the display.

Scan Indicators

Details the indicators related to different scan modes (Open, Group, Priority).

Basic Operation Guide

Turning Power ON

Instructions for turning the transceiver power ON and initial setup.

Battery Type Selection

Guide for selecting the correct battery type when powering on the transceiver.

Channel Selection

How to select operating channels and configure zone types.

Receiving and Transmitting

Detailed steps for receiving signals and transmitting audio with the transceiver.

Transmitting Procedures

Step-by-step guide on how to transmit audio and important microphone usage tips.

Set Mode Configuration

Set Mode Overview

Introduction to Set Mode for customizing transceiver operations and settings.

Set Mode Operation

Step-by-step guide on how to enter, navigate, and exit Set Mode.

Repeater Operation

Repeater Function Overview

Explains how repeaters extend operational range by re-transmitting signals.

Accessing a Repeater

Guide on selecting repeater output channels and transmitting via a repeater.

Scan Operation

Tone Squelch Operation

Tone Squelch Function

Explains tone squelch for silent standby and receiving calls from specific group members.

SelCall Operation

SelCall Function Overview

Introduction to SelCall operation for selective individual or group calling.

Battery Charging Procedures

General Battery Cautions

Important safety warnings concerning the handling, charging, and disposal of batteries.

Charging Cautions

Specific warnings and precautions related to the battery charging process.

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