•
FM, superheterodyne radio transceiver based on
valve circuitry. The tuning scale is calibrated in 50
kHz increments. • Frequency range: • R-105D (Р-105Д) - 36.0 to 46.1 MHz (used by motorized infantry and tank troops) • R-108D (P-108Д) - 28.0 to 36.5 MHz (version used by artillery units) • R-109D (P-109Д) - 21.5 to 28.5 MHz (
HF band variant used by the air defense forces) • Receiver sensitivity: better than 1.5 μV at a signal-to-noise ratio of 10:1 • Transmitter output power: 1 Watt • Power source: two nickel-cadmium batteries 2NKN-24 or 2KN-32 with a total voltage of 4.8 V. HT supply to the anode circuits is from a built-in vibration transducer. • Battery endurance: Continuous operation time at a 3:1 ratio of reception/transmission time is from 12 to 17.5 hours depending on the type of battery fitted. • Antenna: flexible
whip antenna 1.5 m high (Kulikov's pin type) with additional bends for extension up to 2.7 m. External antennas can also be used. • Range: 10 km when using a short whip antenna, and 30-40 km when using more complex antennas. •
Operating temperature range: -40 to +50 °C • Dimensions of transceiver: 365 × 385 × 230 mm • Weight: 21 kg ==References==