The R-399A Katran receiver was designed for long-haul reception and radio intelligence. It is a solid-state receiver, the only tubes are digital scale tubes. The receiver has a separate power supply.
Range: 1 - 30 MHz
Modulations: A1, A3, A3J
Sensitivity: A1 0,3 uV, A3 2 uV, A3J 0,7 uV
Power supply: 120/220V mains
Source own collection
Range: 1 - 30 MHz
Modulations: A1, A3, A3J
Sensitivity: A1 0,3 uV, A3 2 uV, A3J 0,7 uV
Power supply: 120/220V mains
Source own collection