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Alinco DR-235TMkIII - User Manual

Alinco DR-235TMkIII
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Rhein Tech Laboratories, Inc. Client: Alinco, Inc.
360 Herndon Parkway Model: DR-235TMkIII
Suite 1400 Standards: FCC 15.121
Herndon, VA 20170 & IC RSS-215
http://www.rheintech.com
Report: 2006179
Page 23 of 41
Appendix J: Manual
Please see the following pages.

Table of Contents

Questions and Answers

  • J
    John JohnsonAug 14, 2025
    Why Alinco Transceiver does not transmit and cannot be reset?
    • D
      Dr. Sarah Smith MDAug 14, 2025
      If your Alinco Transceiver won't transmit and can't be reset, it could be because the DSUB-9 port has been connected to a PC without installing the EJ-41U. Disconnect the cable and install EJ-41U properly.
  • K
    Kylie WatsonAug 17, 2025
    Why is there no sound coming from the Alinco Transceiver speaker?
    • A
      Ashley FranklinAug 17, 2025
      If no sound is coming from the Alinco Transceiver's speaker, there might be a couple of reasons: * The squelch might be muted. Try decreasing the squelch level. * Tone or DCS squelch might be active. In this case, turn off CTCSS or DCS squelch.
  • U
    ulawrenceAug 21, 2025
    What to do if PTT key is pressed but transmission does not occur on Alinco DR-235TMkIII Transceiver?
    • B
      Betty GravesAug 21, 2025
      If you press the PTT key on your Alinco Transceiver and transmission doesn't occur, check these potential causes: * Ensure the microphone connection is properly connected. * Verify the antenna connection is properly connected.
  • B
    benjaminibarraAug 25, 2025
    Why Alinco DR-235TMkIII Transceiver does not work in the APRS mode?
    • B
      Barbara PerryAug 25, 2025
      If your Alinco Transceiver isn't working in APRS mode, consider the following: * Ensure the connections and parameters are configured properly. * Use PC to configure the TNC, if the unit is not configured for automatic transmission. * Adjust squelch level properly, if the squelch is open. * Wait until GPS receiver receives data from satellites, if GPS receiver is not receiving the data from the satellites.
  • D
    Duane NewtonAug 27, 2025
    Why Alinco Transceiver does not work in the packet mode?
    • T
      thomaserinAug 28, 2025
      If your Alinco Transceiver isn't working in packet mode, here are some things to check: * Make sure the connections and configurations are properly set for EJ-41U/TNC. * Follow the instruction, configure and retry, if the unit is not in the data mode. * Adjust squelch level properly, if the squelch is open. * Use command to configure the speed, if the data transmission speed is not configured. * Use straight RS-232C cable, if the cable is not straight type.
  • L
    Lucas SimsAug 30, 2025
    How to unlock the Alinco Transceiver if key and dial do not function?
    • J
      John CannonAug 31, 2025
      If the key and dial on your Alinco Transceiver aren't working, it's possible that the key-lock function is activated. Try canceling the Key-lock function.
  • C
    Clinton CampbellSep 3, 2025
    What to do if rotating dial will not change memory channel on Alinco Transceiver?
    • J
      Jenny VasquezSep 3, 2025
      If the rotating dial on your Alinco Transceiver won't change the memory channel, the transceiver might be in CALL mode. Press the VFO or memory mode.
  • M
    Michael SmithSep 6, 2025
    What to do if Alinco Transceiver fuse is blown?
    • D
      dwilliamsSep 6, 2025
      If the fuse is blown, check and solve the problem that resulted in the blown fuse. Replace the fuse with a new one.
  • D
    dodsondevinSep 10, 2025
    What to do if power is on but nothing appears on Alinco Transceiver display?
    • E
      edwardwalkerSep 10, 2025
      If the power is on but nothing appears on the Alinco Transceiver's display, the + and - polarities of the power connection might be reversed. Connect the red lead to the plus terminal and the black lead to the minus terminal of the DC power supply.

Summary

NOTICE; Compliance Information Statement

Warning

Environment and condition of use

Guidelines for safe operation regarding environmental factors and usage conditions.

Handling this product

About power-supply

Before operating the transceiver

Attention

Important operational notes and precautions to follow before initial use.

Notice to California resident users

Regional compliance note specific to California users.

Introduction

1. New and Innovative Features

2. Standard Accessories

3. Initial Installation

For a base station set up

Instructions for installing and configuring the transceiver as a base station.

For a mobile station set up

Instructions for installing and configuring the transceiver in a mobile environment.

External power supply control & Power lamp functions

Power supply voltage display function

4. Part Names and Functions

Front Panel

Description of controls and connectors located on the front of the transceiver.

Rear Panel

Description of controls and connectors located on the rear of the transceiver.

Display

Explanation of icons, indicators, and information shown on the transceiver's display.

Microphone

Details on the functions and operation of the supplied microphone.

5. Basic Operations

Turning the unit on and off

Procedure for powering the transceiver on and off, including ignition key integration.

Audio Volume level setting

How to adjust the audio output volume to a comfortable listening level.

Squelch level setting

Adjusting the squelch to reduce or eliminate background noise.

VFO mode

Change frequency by the channel step

Change frequency by 1 MHz step

Changing the channel step

REPEATER (DUPLEX) Operation

Shift Direction and Offset frequency setting

CTCSS; DCS setting

Memory Mode

Memory programming

CALL mode

To receive signals

To transmit

6. Parameter Setting Mode

To use the Parameter Setting mode

Step-by-step guide to enter and navigate the parameter settings menu.

Details of the features in Menu

Overview of the configurable parameters available within the setting mode.

Channel Step setting

Scan Type

Beep Sound

Time-Out-Timer

TOT Penalty

APO-Auto Power OFF

Tone-Burst Frequency

Busy-Channel-Lock-Out

Theft Alarm

Alphanumeric Tag

Dimmer

7. Advanced Operations

Scanning Functions

Utilizing automatic scanning to search for active frequencies or memory channels.

KEY-LOCK FUNCTION

Disabling front panel keys to prevent accidental changes.

TONE BURST

Transmitting a short tone burst to activate repeaters or for specific signaling.

Digital voice communication

WIDE; NARROW (Reduction of the Mic. Gain; Deviation)

AUTO-DIALER

THEFT ALARM (Optional ADALM135 required for FXE models)

AM Mode Reception (DR235 TMkII only)

CABLE CLONE

8. PACKET OPERATION

To operate packet using EJ-41 U

Setting up the transceiver for packet operation with the optional EJ-41U TNC unit.

Packet Mode Setting

Configuring the transceiver to enter and operate in packet mode.

To operate packet using an external TNC

1200 bps

9600 bps

To operate APRS

SET UP

APRS Operation

9. Remote Control Operation

List of Remote Control Keys

Table detailing the DTMF keys and their corresponding remote control functions.

Entering a frequency directly

Entry method depending on tuning step

10. Maintenance; Reference

Reset

Procedure for resetting the transceiver to factory default settings.

Trouble Shooting

A guide to identifying and resolving common operational problems.

11. Optional accessories

12. Specifications

Appendix

TNC Commands List

Reference for commands used with the built-in TNC for packet communication.

Alinco DR-235TMkIII Specifications

General IconGeneral
TypeMobile Transceiver
ModulationFM
Channels200
Power Supply13.8V DC
CTCSS Encode/DecodeYes
DCS Encode/DecodeYes

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