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Kenwood TM-331A User Manual

Kenwood TM-331A
40 pages
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COOMN=>
144MHz
FM
TRANSCEIVER
TM-231A/231E
220MHz
FM
TRANSCEIVER
440/430MHz
FM
TRANSCEIVER
A/431E
1200MHz
FM
TRANSCEIVER
TM-531A/531E
INSTRUCTION
MANUAL
KENWOOD
CORPORATION
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Kenwood TM-331A Specifications

General IconGeneral
BrandKenwood
ModelTM-331A
CategoryTransceiver
LanguageEnglish

Summary

1. WARNING BEFORE OPERATION

General Safety Precautions

Essential safety measures to prevent electrical hazards and damage.

2. Specifications and Accessories

Product Specifications

Detailed technical specifications for various transceiver models.

3. Installation Instructions

Mounting Bracket and Transceiver Installation

Steps for installing the transceiver and its mounting bracket.

Connection Procedures

Guidelines for mobile installation, battery, and ignition noise.

Fixed Station Power Connection

Power requirements for fixed station operation.

Antenna Connection

Antenna selection and connection guidelines.

4. Operation

Control Functions Overview

Explanation of front panel controls and keys.

VFO, MR, and MHz Key Functions

Detailed operation of VFO, MR, and MHz keys.

CALL, SHIFT/AL, and TONE/T.ALT Key Functions

Operation of Call, SHIFT/AL, and TONE/T.ALT keys.

REV/STEP and DRS/ALT Key Functions

Using REV/STEP and DRS/ALT key functions.

LCD Display Panel Indicators

Explains the meaning of various indicators on the LCD display.

Rear Panel and Microphone Connectors

Details on rear panel jacks and microphone connector pinouts.

4-2. RECEIVER OPERATIONS

Reception Setup and Controls

Initial setup for receiving signals and control adjustments.

Frequency Selection and Steps

How to select operating frequencies and frequency steps.

Programmable VFO Tuning Limits

Setting VFO tuning range limits.

Programmable VFO Tuning Limits (Cont.)

Continued procedure for setting VFO tuning range limits.

ALT System Operation

How the Auto Lock Tuning system works for specific models.

4-3. TRANSMITTER OPERATION

Transmitter Operation Guidelines

Cautions and steps for transmitting.

4-4. MEMORY OPERATIONS

Microprocessor Initialization and Memory Channels

Resetting the microprocessor and special memory channel functions.

Memory Contents and Entry

Information on what can be stored in memory and how to enter it.

Odd Split Memory Channels

How to enter and confirm odd split memory channels.

Call Channel and Memory Channel Recall

Storing data in Call Channel and recalling memory channels.

4-5. SCAN Operations

Scan Operations Overview

Types of scan operations available (Band, Programmable, Memory).

Hold/Resume Programming

Setting Time Operated vs. Carrier Operated scan hold.

Programmable Band Scan and Memory Channel Scan

Procedures for programmable band scan and memory channel scan.

Memory Channel Lockout

How to skip specific memory channels during scanning.

Priority Alert Function

Monitoring a priority channel while operating on another.

4-6. REPEATER OPERATIONS

Transmitter Offsets

Setting transmit/receive frequency offsets for repeaters.

Reverse Function

How to reverse transmit/receive frequencies.

Tone and CTCSS Operation

Using tone signals and CTCSS for repeater access.

Autopatch Operations

Using the transceiver for telephone calls via autopatch.

Tone Alert System

Setting up an audible alarm for incoming signals.

4-8. Digital Recording System

Digital Recording System Modes

Explanation of DRS, DRS/T.ALT, and Normal modes.

Tone Quality Level Selection

How to select the tone quality for recordings.

Selecting Maximum Number of Phrases

Setting the number of voice messages for recording.

Recording Incoming Signals and Microphone Input

Procedures for recording signals and microphone audio.

Play Back and Automatic Recording

How to play back recordings and set up automatic recording.

6. MAINTENANCE

General Maintenance Information

Factory alignment and general service notes.

Service and Repair Procedures

Guidelines for returning equipment for service or repair.

6-3. IN CASE OF DIFFICULTY

Troubleshooting Table

Table of symptoms, probable causes, and corrective actions.

7. OPTIONAL ACCESSORIES

CTCSS Unit TSU-6 Installation

How to install the optional CTCSS decoder unit.

DRU-1 and RC-10 Installation

Installation procedures for DRU-1 and RC-10.

Optional Microphones and Speakers

Descriptions of various optional microphones and speakers.

Optional Accessories Overview

Images and names of various optional accessories.

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