The serial coupling RAT consists of the coupling transformer, the resonant circuit cabinet and the transmitter matching circuit. The coupling transformer is used for potential separation and level adjustment. The RKC resonant circuit cabinet includes the resonant circuit capacitor bank as well as isolation and protection devices. The transmitter tuning circuit consists of a longitudinal filter tuned to audio frequency, a 50Hz absorption circuit and the transmitter output transformer.
Preferably at very low sound frequencies
Suitable for indoor or outdoor installation