Army portable shortwave simplex radio R-104M “Kedr”.
- Operating frequency range: 1.5 – 4.25 MHz. The first subband: 1.5 – 2.88 MHz. Second subband: 2.88 – 4.25 MHz.
Modification R-104M “Kedr” became the most famous: this transceiver telephone and telegraph HF radio station with amplitude modulation and mechanical half-duplex was produced since 1955. It was produced in four versions: automobile (portable) R-104AM3 automobile (portable) R-104M stationary (box) R-104UM wearable R-104UMU The transporters worked at full power and were transported by car. The wearables operated at reduced power and were carried by two radio operators.
Modulation: AM and CW. Power supply: 4.8 V. Transmitter type: smooth local oscillator. Receiver type: single conversion superheterodyne.