SA-525-20 Antenna Tuning Unit

The SA-525/20 HF Antenna Tuning Unit features automatic matching of electrically short HF antennas, as usually found in vehicular applications, for up to 20W RF power with frequency hopping compatibility.
One MT-525 single radio docking station with one PRC-525 radio and one AP-525V 50W VHF power amplifier together with one SA-525/20 HF antenna tuning unit makes a very compact communications system with 20W HF and 50W VHF power capability.
The SA-525/20 offers two modes of operation, the Active and the Silent tuning. In Active tuning the unit generates RF signal, optimizes VSWR and stores the tuning parameters. In Silent tuning pre-stored parameters are used.
Tuning process can be remotely controlled via coaxial or optical interface.
The unit was designed for battery powered systems, having a reduced power consumption and automatic switch off under radio control.