mAT 40 hf pole tuner 120 w

The mAT-40 tuner has a weatherproof metal housing and is intended for permanent outdoor use. Tune end-fed wire antennas or wire loops. A high voltage screw terminal is provided on the top of the tuner for this purpose. Connection to the radio is made via a PL coaxial socket on the bottom of the tuner. Power and control signal are provided by a waterproof screw connection, also on the bottom. A 10m long cable is included. This cable must be adapted to the respective transceiver with an optionally available interface cable. Interface cables are available for Icom, Kenwood and Yaesu. For other radios, the manufacturer offers a universal cable for your own adaptation.

The following transceivers are supported:
-with mAT-40-M cable: All Icoms with 4-pin tuner socket, all devices that support AH-3 or AH-4, with modification the IC-M710 can also be used.
-With mAT-40-K cable: All Kenwood with 6-pin tuner plug, all devices that support the AT-250 or AT-300.
-with mAT-40-Y cable: All Yaesu with 8-pin MiniDIN CAT socket that support the FC-30, FC-40 or FC-50.

The tuner tunes antenna wires or rods starting from a length of approximately 2.5m, so the efficiency is severely limited with such short antennas. The suggested antenna length is 12m, but other lengths are also possible. In some cases it may be necessary to connect a counterbalance wire to the tuner. A screw terminal on the bottom side is used for this purpose. Here, for example, the body of a vehicle or an electrical contrast on a sailing ship can be connected. Stainless steel brackets are included for mounting. They are used for mounting on a pole or on the wall. M6 U-bolts from 25 to 100mm wide can be used for mounting on a pole (not included). The tuner is weatherproof.

Operation is via the "Tune" button on the radio. This simplifies the tuning process by automatically switching to low power and CW, as well as returning to the previously used transmission line and mode. The maximum transmit power can be 120W PEP, with RTTY and other continuous wave modes approx. max. 30W. The tuner tunes the antennas in an impedance range from approximately 5 to 1500 Ohms.