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Kenwood TH-48E User Manual

Kenwood TH-48E
64 pages
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Shanna
144
MHz
FM
TRANSCEIVER
TH-28A/28E
430/440
MHz
FM
TRANSCEIVER
-48A/48E
INSTRUCTION
MANUAL
KENWOOD
CORPORATION
©PRINTED
IN
JAPAN
B62-0236-
Ee):
93/4654321
9242111098765432

Table of Contents

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Kenwood TH-48E Specifications

General IconGeneral
TypeHandheld Transceiver
ModulationFM
Antenna Impedance50 ohms
Frequency Range430-440 MHz
Battery/Supply Voltage7.2V
Receiver Sensitivity0.16 µV (12 dB SINAD)
Channel Spacing12.5 kHz / 25 kHz

Summary

Instruction Manual

Notices and Warnings

FCC WARNING

Important safety and compliance information related to FCC regulations.

Digital Device User Requirements

FCC compliance details for digital device users.

Before Operation

Getting Started

Initial steps to prepare the transceiver for use.

Controls Overview

Explanation of the transceiver's buttons, switches, and display elements.

Accessories

Accessory List

Comprehensive list of available accessories for the transceiver.

The Battery Pack

NiCd Battery Pack (PB-13)

Information on the NiCd battery pack, including charging and initial use.

Recharging and Installing the Battery

Procedures for charging, installing, and removing the battery pack.

Battery Voltage and Operating Time

Checking battery level and expected operating times.

Receiver Operation

Getting Started

Initial setup and turning on the transceiver.

Selecting Frequency

Methods for selecting operating frequencies via keyboard or tuning.

Step Size Selection

How to adjust the frequency tuning and scanning step size.

Programmable VFO Tuning Limits

Setting custom frequency tuning ranges for the VFO.

Subband Reception

How to select and use subbands for reception.

Transmitter Operation

Transmitting Procedures

Steps required for successful transmission.

Changing Transmitter Output Power

How to select different power levels for transmission.

TX Stop and Time-Out-Timer Functions

Disabling transmission and automatic transmission timer.

Using the Memory

Memory Backup and Entry

Memory data retention and procedure for storing frequencies and settings.

Memory Initialization and Management

Resetting data, managing channels, and understanding memory contents.

Split and Call Channel Frequency Entry

Storing separate frequencies for repeaters and call channels.

Recalling Memory and Memory Shift

Retrieving stored memory information and shifting to VFO.

Memory Channel Character Display

Customizing memory channels with text labels.

Scanning

Hold/Resume Programming

Setting scan behavior for busy or clear channels.

Scan Options

Overview of available scanning modes like Memory and Band Scan.

Scanning Memory Channels

How to scan through programmed memory channels.

Locking Out Memory Channels

Skipping specific memory channels during scans.

Band Scanning

Scanning across the entire frequency band.

Programmable Band Scan

Setting custom scan ranges within a band.

MHz Scan

Scanning within a specific 1 MHz segment.

VFO/Memory Scan

Alternating scans between VFO and memory channels.

CALL/VFO Scan

Alternating scans between Call and VFO channels.

CALL / Memory Scan

Alternating scans between Call and memory channels.

V/M/C(VFO/Memory/CALL) Scan

Scanning VFO, Memory, and Call channels sequentially.

Repeater Operation

Transmitter Offsets and Direction

Understanding and setting transmit/receive frequency offsets for repeaters.

Automatic Offset Selection

Using the transceiver's automatic offset programming.

Manual Offset and Reverse Function

Manually setting offsets and reversing transmit/receive frequencies.

Tone Operation

Using sub-audible tones or 1750 Hz tone for repeater access.

Autopatch Operations

Using the transceiver for telephone calls via repeaters (U.S.A. versions).

DTMF Memory

Storing and recalling DTMF telephone numbers.

CTCSS Operation

Selecting and Operating CTCSS Function

Choosing CTCSS tones and activating the tone squelch feature.

The Dual Tone Squelch System (DTSS)

DTSS Code Selection and Usage

Setting and operating DTSS for selective squelch.

Using DTSS with a Repeater

How DTSS functions when used with repeaters, including delay times.

Paging

Paging Operation Overview

General explanation of the paging system's functionality.

Paging Code Memory and Setting

Storing and programming individual, group, and station ID codes.

Sending Pages (Calling)

Procedures for initiating individual or group pages.

Receiving Pages (Wait)

How to receive and respond to incoming pages.

Signal Squelch and Code Locking

Disabling squelch and preventing reception of specific paging codes.

Message Transmission and Reception

Message Transmission Modes

Methods for sending messages directly or from memory.

Using the Message Memory

Storing and retrieving messages in memory channels.

Message Memory Check and Transmission

Reviewing, sending, and receiving stored messages.

Message Reception

Receiving and displaying incoming messages.

Enhanced Receiver Function

The Tone Alert System

Using audible alarms for incoming signals.

Monitor, Beep Off, Lamp, and Key Lock

Functions for monitoring, disabling beeps, backlight, and locking keys.

Power Saver Features

Battery Saver Mode

Conserving battery power by reducing receiver activity.

Automatic Power Off (APO)

Automatically shutting down the transceiver after inactivity.

Clock Function

Time Setting

Setting the current time on the transceiver's clock.

Timer Function

Configuring switch-on/off timers and alarms.

Cross Band Operation

Cross Band Operation Overview

Setting up and performing cross band communication.

Cross Band Operation With Memory Channel

Using memory channels for cross band operations.

Maintenance

General Information and Service

Guidance on maintenance, warranty, and returning for repair.

Record Keeping

Recommendations for documenting purchase and service history.

Troubleshooting

Troubleshooting Guide

Common problems, their causes, and corrective actions.

Accessories - Visual Guide and Installation

Accessory Installation Guides

Procedures for installing units like CTCSS and memory expansion.

Remote Control and Microphone Usage

Programming SMC-33 and using other microphones.

External Speaker and Cable Connections

Connecting external speakers and using various cables.

Specifications

General and Receiver Specifications

Electrical, physical, and performance metrics for the transceiver.

Transmitter Specifications

Performance metrics for the transmitter section.

Quick Reference

Quick Reference Guide

A summary of key operations and button combinations.

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