Trunk professional communication radio `` R-309 '' (Barley).
Receiving and transmitting radio equipment.The main professional communication radio "R-309" (Barley) since 1967 has been producing the Kharkov Radio Plant named after V.I. 25th Congress of the CPSU. Optical scale. Frequency range: 1 ... 36 MHz. Sensitivity at 4 kHz bandwidth in telephone mode 3 µV, telegraph 0.6 µV. Weakening of the sensitivity along the mirror channel at least 4 thousand times, at 6-7 subranges at least 2 times. By IF signals 10 t. Times. The number of points of the affected reception is 20. There is an output of LF 0.5 V (300 ... 3000 Hz), AGC for double reception, an electric motor for AFC. Receiver dimensions: 480x290x440 mm. Weight 33 kg, power supply 14 kg. Powered by an alternating current 127 or 220 V, via an external power supply unit or from a 12 V battery. A more detailed description of the receiver is available on the Internet.
