mAT-TUNER mAT-125S Universal Automatic Antenna Tuner 120W HF / 6m
SKU Part Number: MAT-125S
Universal Automatic Antenna Tuner mAT-TUNER mAT-125S Compact automatic antenna tuner covering 1.8 to 54MHz with up to 120W RF handling on...
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£168.95
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Universal Automatic Antenna Tuner

mAT-TUNER mAT-125S

Compact automatic antenna tuner covering 1.8 to 54MHz with up to 120W RF handling on SSB/CW, straightforward front-panel operation and fully automatic or semi-automatic tuning.

RF Power Rating
120W SSB/CW • 30W Digital Modes

During a tuning cycle, transmitter output must be reduced to between 5W and 15W.

The mAT-TUNER mAT-125S is a general-purpose automatic antenna tuner designed for use with virtually all brands and models of HF transceiver. Covering 1.8 to 54MHz, it provides a simple external tuning solution for HF and 6 metre operation.

The tuner supports a maximum RF input of 120W on SSB/CW and 30W when operating digital modes. A full tuning cycle typically takes less than five seconds.

Unlike radio-specific tuners that require a dedicated control interface, the mAT-125S uses the RF signal itself to perform tuning. This makes it a versatile option for stations using different makes and models of transceiver.

FREQUENCY RANGE
1.8 - 54MHz

Covers the HF amateur bands through to 6 metres.

RF POWER
Up to 120W

Rated for 120W SSB/CW operation and up to 30W on digital modes.

TUNING TIME
Under 5 Seconds

A full tuning cycle completes in less than five seconds under normal conditions.

OPERATING MODES
Automatic or Semi-Automatic

Choose between automatic SWR-triggered tuning or manually initiated tuning.

Flexible Operation

Fully Automatic or Semi-Automatic Tuning

In Fully Automatic Mode, the mAT-125S can automatically begin a tuning cycle when the detected SWR exceeds 2.0, provided the TUNE/BYPASS switch is left in the TUNE position.

In Semi-Automatic Mode, tuning is initiated by moving the front-panel TUNE/BYPASS switch from BYPASS to TUNE while transmitting a suitable low-power carrier.

mAT-TUNER mAT-125S front panel
Front Panel

Simple, Direct Control

A series of LEDs provides a quick indication of the current SWR, while a separate PWR LED confirms the tuner's operating state.

Dedicated TUNE/BYPASS and ON/OFF switches provide direct control without requiring a radio-specific control cable.

mAT-TUNER mAT-125S rear panel
Rear Panel

Straightforward Station Integration

Separate ANT and RF IN UHF sockets connect the tuner between your transceiver and antenna feed line.

A ground terminal is provided for the station ground connection, while the DC input accepts 12 to 14V DC.

Important Tuning Power Note

Set the transceiver to between 5W and 15W while performing a tuning cycle. Do not exceed 15W during tuning, as excessive tuning power may damage the tuner.

In the Box

Package Includes

  • 1 x mAT-125S automatic antenna tuner
  • 1 x DC power cable
  • 1 x Operating Manual
Please note: RF coaxial cables between the transceiver, tuner, and antenna are not supplied.
Technical Specifications

mAT-125S

Frequency Range 1.8 - 54MHz
Maximum RF Power 120W SSB/CW, 30W digital modes
Tuning Power 5 - 15W
Full Tuning Time Less than 5 seconds
Operating Modes Fully automatic / semi-automatic
RF Connectors UHF / SO-239 / SL16
Power Supply 12 - 14V DC, maximum 1A
Operating Temperature -10°C to +60°C
Dimensions 200 × 130 × 40mm
Weight 800g
Product Information

mAT-TUNER mAT-125S

Technical Specifications

General Specifications

Product Type General-purpose automatic antenna tuner
Frequency Range 1.8 - 54MHz
Maximum RF Power 120W SSB/CW
Digital Mode Power 30W maximum
Tuning Power 5 - 15W
Full Tuning Time Less than 5 seconds
Operating Modes Fully automatic and semi-automatic
Antenna Connector UHF / SO-239 / SL16
RF Input UHF socket
Power Supply 12 - 14V DC, maximum 1A
Operating Temperature -10°C to +60°C
Dimensions 200 × 130 × 40mm
Weight 800g
Front Panel

Controls and Indicators

mAT-TUNER mAT-125S front panel controls
  • 1.5 - 3.0 LEDs: Current SWR indication
  • PWR LED: Power status indicator
  • TUNE/BYPASS: Online, tuning and bypass control
  • ON/OFF: Main power switch
Rear Panel

Connections

mAT-TUNER mAT-125S rear panel connections
  • ANT: UHF socket for antenna connection
  • RF IN: UHF socket for connection to the transceiver
  • GND: Ground terminal
  • DC: 12 - 14V DC power input, maximum 1A
Operating Modes

Automatic and Semi-Automatic Tuning

FULLY AUTOMATIC
SWR-Triggered Tuning

With the TUNE/BYPASS switch in TUNE, the mAT-125S automatically begins tuning when detected SWR exceeds 2.0.

SEMI-AUTOMATIC
Manual Tune Initiation

Tuning begins when the operator moves the TUNE/BYPASS switch from BYPASS to TUNE while transmitting the required carrier.

Important Tuning Power

Use a steady carrier in FM, CW or FSK at between 5W and 15W when tuning. Do not exceed 15W during a tuning cycle.

Outdoor Use

The mAT-125S is not waterproof. Protect the tuner from rain and moisture when using it in portable or outdoor installations.

Package Contents
  • mAT-125S automatic antenna tuner
  • DC power cable
  • Operating Manual

RF coaxial cables are not included.

Shipping:

We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.

Returns:

If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

Click here for returns form

Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]