The mAT-40 HF-SSB Automatic Antenna Tuner lets you rapidly tune any antenna automatically: unbalanced or single-wire. It can be operated by various brands of transmitters by selecting different interface cables, such as ICOM, YAESU, and KENWOOD, just like their own brand tuners.
The tuner housing is produced by aluminum milling and oxidation surface technology, beautiful, delicate, compact and firm. It can work well in all kinds of harsh outdoor environments. The maximum size of the tuner is only 20 cm, which is the smallest outdoor antenna tuner now.
The mAT-40 also features advanced memory tuning, providing 16000 memory locations. When tuning near a previously used frequency it will recall the settings for nearly instant tuning. It learns your favorite frequencies and bands as you use it.
The standard configuration accessory of the tuner does not contain 50 ohm coaxial cable, and the user needs to prepare it himself.
The tuner consists of the following parts: mAT-40 host, control cable (mAT-40-D, 10m), YAESU interface cable (mAT-40-Y), ICOM interface cable (mAT-40-M), KENWOOD interface cable (mAT-40-K). The mAT-40 host and mAT-40-D control cable are necessary parts, and the rest of the interface cables are optional. You can choose different interface cables according to your radio.
The tuner's extended bracket is supplied with the tuner as a standard accessory. It allows tuners to be installed more conveniently. Made from stainless steel, it is strong, reliable, and offers good corrosion resistance.
The control cable is a standard accessory provided with the tuner. It is a six-core cable with a length of 10 meters. One plug connects to the tuner, and the other plug connects to different interface cables. The standard configuration contains only one specific interface cable; the others are optional.
Interface Cables
ICOM interface cable mAT-40-M - Optional, needs to be purchased separately.
YAESU interface cable mAT-40-Y - Optional, needs to be purchased separately.
KENWOOD interface cable mAT-40-K - Optional, needs to be purchased separately.
Power Limits
SSB: 120W continuous, 150W short-term max.
Digital Modes (FT8/RTTY/FSK): 30W max.
Tuning Power: 5–10W recommended, minimum 0.5W, maximum 20W.
Installation & Antenna
The mAT-40 is designed for outdoor use. A wire length of 12 meters is recommended for optimal performance. Minimum antenna length is 2.5 meters. Always use a proper ground network. Do not use gas pipes for grounding.
Waterproof tape should be applied to RF and control cable connectors. Regularly inspect waterproof integrity.
Radio Configuration
- ICOM radios: Use mAT-40-M cable. Most require no additional settings.
- YAESU radios: Use mAT-40-Y cable. Configure tuner options in radio menu.
- KENWOOD radios: Use mAT-40-K cable. Follow radio instruction manual.
Technical Specifications
| Frequency Range | 1.8 – 54 MHz |
|---|---|
| Maximum RF Power (SSB) | 120W continuous, 150W short-term |
| Maximum RF Power (Digital) | 30W (FT8/RTTY/FSK) |
| Tuning Power | 5–10W recommended, 0.5W min, 20W max |
| Tuning Time | 0.1 – 5 seconds, 0.1 seconds (memory tune) |
| Memory Channels | 16,000 |
| Impedance Matching Range | 5 to 1500 ohm |
| Dimensions (L × W × H) | 20 × 13 × 4.5 cm |
| Weight | 1.0 kg |
| Control Cable Length | 10 meters (mAT-40-D) |
| Construction | Aluminum milling, oxidation surface |
Standard Accessories
- mAT-40 Tuner Main Unit
- Control Cable (mAT-40-D, 10m length)
- Extended Bracket (stainless steel)
Optional Accessories
- mAT-40-Y (YAESU Adapter Cable)
- mAT-40-M (ICOM Adapter Cable)
- mAT-40-K (KENWOOD Adapter Cable)
Purchase Advisory
To ensure reliable after-sales service and technical support, we strongly recommend purchasing our products through authorized dealers. See the list at: Distributor List
Technical Support
Visit: http://www.mat-tuner.com/ for manuals, specifications, and authorized dealer information.