Alinco DX-R8T User Manual (English)

Questions and Answers:

G
Gary DavisAug 12, 2025
Why Alinco DX-R8T power does not come on?
- E
  ericperezAug 12, 2025
  There are several reasons why your Alinco Receiver might not be powering on. It could be due to: 1. An incorrectly connected DC power cable – ensure it is properly connected. 2. A blown fuse – replace the fuse. 3. Wrong plug polarity – correct the polarity and replace the fuse. 4. The DC regulated power supply switch being off – turn the power switch on. 5. Insufficient voltage from the power supply – ensure a regulated 13.8 V DC ± 15 % power supply is used and adjust the operating voltage within the range of 11.7 to 15.8 V DC.
E
Emily EvansAug 16, 2025
What to do if there is no sound from the Alinco DX-R8T Receiver speaker?
- R
  robertsonrandyAug 16, 2025
  If you're not getting any sound from your Alinco Receiver speaker, consider these possible causes: 1. The AF control knob might be turned fully counterclockwise. Rotate the AF control knob to adjust the volume. 2. The external speaker cable may be short-circuited or damaged. Check the cable. 3. Headphones or earphones might be plugged into the speaker jack. Unplug them. 4. The squelch level might be set too high. Turn the SQL control knob counterclockwise to unmute the squelch.
J
Jade JonesAug 19, 2025
Why Alinco DX-R8T Receiver only receives strong signals?
- M
  Melinda MartinezAug 19, 2025
  If your Alinco Receiver is only picking up strong signals, it could be due to: 1. A muted squelch. Turn the SQL control knob counterclockwise. 2. The ATT being activated. Press the [RF] key to turn ATT off. 3. A defective antenna, short-circuited, or damaged coaxial cable. Check the antenna, cable, and connector. 4. An antenna that is not suitable for the receiving band. Connect the correct antenna.
M
Melinda StarkAug 23, 2025
What to do if Alinco DX-R8T received signal is not demodulated?
- T
  theresa27Aug 23, 2025
  If the received signal on your Alinco Receiver is not being demodulated: 1. Check that the correct mode is selected. If using SSB, verify LSB and USB settings. 2. Ensure the correct passband is set. Adjust the IF control knob until proper audio is heard and select the appropriate filter.
K
Kelsey HollandAug 27, 2025
How to unlock Alinco Receiver tuning dial?
- S
  Sarah SkinnerAug 27, 2025
  If the frequency isn't changing when you rotate the main tuning dial on your Alinco Receiver, the dial might be locked. Press the [ ] key to unlock it.
K
Kylie SmithAug 31, 2025
Why Alinco Receiver scan does not start?
- J
  Jamie MorrisonAug 31, 2025
  If the scan function isn't starting on your Alinco Receiver, it may be because the scan setting is incorrect in the Set mode, or the squelch is unmuted. Correct the scan type or mute the squelch.
K
Kelly StewartSep 3, 2025
Why Alinco DX-R8T memory scan will not start?
- E
  Edward ChristianSep 4, 2025
  If the memory scan won't start on your Alinco Receiver, the memory channel might be unprogrammed. Program a memory channel.
N
nicholaswilsonSep 8, 2025
Why Alinco Receiver memory frequency cannot be changed?
- L
  Loretta SmithSep 8, 2025
  If the memory frequency cannot be changed on your Alinco Receiver, the memory channel may be protected. Turn off memory access protection.

Alinco DX-R8T Specifications

General

Power Supply	13.8V DC
Antenna Impedance	50 Ω
Modulation Modes	AM, FM, SSB, CW
Audio Output Power	2 W (8 Ω)
IF Frequencies	455 kHz

Summary

NOTICE / Compliance Information Statement

Conformity Information

Declares compliance with essential requirements for radio equipment.

WARNING

Environment and condition of use

Safety guidelines for operating the receiver in various environments and conditions.

Handling this product

Precautions for safely handling the receiver and its components.

About power-supply

Guidelines for safe and correct use of power supplies with the receiver.

In case of emergency

Procedures to follow in case of product emergencies like smoke or damage.

Maintenance

Instructions regarding unit maintenance and consulting dealers.

About Receiver

Precautions for connecting external devices and cleaning the receiver.

Before Operating the Receiver

Attention

Important notes and precautions before operating the receiver.

Notice to California resident users

Specific notice for California residents regarding product materials.

The receiver has no protection against lightning.

Information regarding the receiver's lack of lightning protection.

Limited Power Source

Details about the receiver's enclosure and power source limitations.

Introduction

1. Getting Started

1-1 Functions and Features

Overview of the receiver's key functions and capabilities.

1-2 Standard Accessories

1-3 Installation and Connection Basics

Connecting an external speaker (if not using the internal speaker)

Instructions for connecting an external speaker to the receiver.

Connecting headphones

Instructions for connecting headphones to the receiver.

Connecting a regulated DC power supply

Steps for connecting the receiver to a DC power supply.

Connecting an antenna and ground cable

Steps for connecting the antenna and ground cable to the receiver.

1-4 Controls, Connectors, and Display

Front Panel

Identification and function of controls on the front panel.

Keypad

Description of the keypad layout and its functions.

Rear Panel

Identification and function of connectors on the rear panel.

Display

Explanation of the LCD display segments and indicators.

Quick Reference for Control Keys

A quick guide to the functions of various control keys.

2. Operation

2-1 Reception Basics

Fundamental steps for receiving signals, including power, volume, and squelch.

5. Setting the reception frequency

Methods for setting the reception frequency using tuning dial and keys.

6. Tuning to a desired frequency

Techniques for fine-tuning the reception frequency.

Direct Frequency Entry with Keypad

Instructions for entering frequencies directly using the keypad.

Getting Familiar with Useful Functions

Explanation of useful functions like RF gain, attenuator, and AGC.

RIT (Receiver Incremental Tuning)

How to use the RIT function for fine-tuning reception.

2-2 RTTY/Packet Operation (FAX/SSTV)

Procedures for enabling RTTY, Packet, FAX, and SSTV operations.

2-3 IQ Signal Output

How to use the IQ signal output for software-defined radio applications.

3. Memory Channels

3-1 Basics

Overview of memory channel features and functions.

3-2 Storing Data in Memory Channels

Step-by-step guide to storing data into memory channels.

3-3 Memory Mode Operation

How to access and operate the receiver in memory mode.

3-4 Memory Channel Data Erasing

Procedures for erasing data from memory channels.

3-5 Memory to VFO Data Transfer

How to copy data from memory channels to VFO.

3-6 Channel Name (Alphanumeric) Registration Function

How to assign alphanumeric names to memory channels.

3-7 Quick Memory

Using keypad keys for quick access to stored frequencies.

4. Scanning

4-1 Basics

Introduction to the scanning functions and available scan modes.

VFO scan

Details on how VFO scan operates and its band coverage.

Programmed scan

How to set and use programmed scanning with specified frequency limits.

Search scan

Using search scan for high-speed scanning within a pre-determined width.

Memory scan

Scanning through programmed memory channels in numerical order.

Priority scan

Monitoring two frequencies alternatively for priority reception.

Scanning Conditions

Explanation of conditions for starting various scan modes.

4-2 VFO Scan

Step-by-step guide to performing a VFO scan.

4-3 Programmed Scan

Detailed steps for performing a programmed scan.

4-4 Search Scan

Instructions for setting up and performing a search scan.

4-5 Memory Scan

Steps for scanning through memory channels.

4-6 Skip-channel Setting

How to set memory channels to be skipped during memory scanning.

4-7 Priority Scan

Detailed procedure for performing a priority scan.

5. Other Functions

5-1 Interference Reducers

Methods to reduce interference using IF SHIFT and Narrow Filter.

IF SHIFT

Explanation of the IF SHIFT function for reducing interference.

Narrow Filter

Explanation of the Narrow Filter for reducing interference.

CW BFO REVERSE

Using CW BFO REVERSE to reduce interference in CW mode.

NB (Noise Blanker)

Using the Noise Blanker to suppress pulse noise.

5-2 Other Useful Functions

Various useful functions for enhancing receiver operation.

RIT Function

How to use the RIT function for fine-tuning reception.

±△f (Plus-Minus Delta F) Function

Function to exit RIT and apply shift to operating frequency.

VFO A=B Function

Copying VFO A settings to VFO B or vice versa.

MULTI FUNCTION Feature

Assigning functions to the MF key for shortcut access.

DIAL LOCK Function

Locking the main tuning dial to prevent accidental frequency changes.

KEY LOCK Function

Locking most keys to prevent unintended operations.

Dimmer

Adjusting the display illumination brightness.

Beep Sound

Turning the operational beep sound on or off.

Sleep

Setting the receiver to turn off automatically after a preset time.

CABLE CLONE

Copying programmed data and parameters between units.

6. Parameter Setting Mode (Set mode)

Table of Setting Mode Parameters

List of selectable parameters and their default settings.

To Use the Parameter Setting Mode

Step-by-step guide to entering and using the parameter setting mode.

Menu 00. Setting Frequency Step with the [A/V] Keys

Setting the frequency step for the up/down keys in different modes.

IQ Mode

Setting the frequency step for the IQ mode.

Menu 01. Memory Overwrite Protection

Protecting memory channels from accidental overwriting.

Menu 02. Memory Frequency Access Protection

Protecting memory frequencies from unintended changes.

Menu 03. Timer Scan Setting

Setting conditions for stopping and resuming scans.

Menu 04. Search Range Setting for Search Scan

Setting the scanning range for search scan.

Menu 05. Memory Scan Skip Setting

Selecting whether to include or exclude skip channels in memory scanning.

Menu 06. Automatic USB/LSB Selection

Automatically selecting USB or LSB mode based on amateur bands.

Menu 07. Automatic AGC-S/AGC-F Selection

Automatically selecting AGC-S or AGC-F based on modulation mode.

Menu 08. Sleep Time Setting

Setting the sleep timer for automatic power-off.

Menu 09. Automatic Power Off (APO)

Setting the automatic power-off timer.

Menu 10. [A/V] Keys Repeat Setting

Setting key-repeat function for the [A/V] keys.

Menu 11. FUNC Key Resume Timing Setting

Setting the timing for FUNC key resume (manual or auto).

Menu 12. RX Lamp Setting

Setting the RX lamp indicator (green or red).

Menu 13. CW Pitch Frequency Setting

Adjusting the CW sidetone frequency.

Menu 14. AF Mute Setting

Advanced setting for AF mute and VFO switching.

Menu 15. IQ Shift Setting

Adjusting IQ signal shift for SDR software compatibility.

7. Maintenance and Reference

7-1 Reset

Different types of reset operations and their procedures.

7-2 Cleaning

Guidelines for safely cleaning the receiver and its accessories.

7-3 Troubleshooting

A guide to diagnosing and resolving common problems with the receiver.

Appendix

Options

List of optional accessories available for the receiver.

About Mounting Bracket and Carrying Handle

Information on mounting brackets and carrying handles.

After-Sales Customer Services

Warranty certificate

Details on the warranty certificate and its validation.

Warranty period

Information about the warranty period and dealer consultation.

Repairs and other customer-service information

How to obtain repairs and customer service details.

About older products

Information on spare parts availability for discontinued products.

Specifications

Related product manuals

Alinco DX-R8T User Manual

Table of Contents