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The first prototype of the Astra (Астра) series of radio transceivers was developed in the late 1940s at the
Scientific Research and Test Institute for Communications of the Army (NIIIS SV) as a replacement for the
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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.
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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.
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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.
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Range: 10 km when using a short whip antenna, and 30-40 km when using more complex antennas.
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armed forces in 1952. It was superseded by the R-105M Parus-3 (P-105M Парус-3) set in 1967.
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R-105D (Р-105Д) - 36.0 to 46.1 MHz (used by motorized infantry and tank troops)
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Receiver sensitivity: better than 1.5 μV at a signal-to-noise ratio of 10:1
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R-108D (P-108Д) - 28.0 to 36.5 MHz (version used by artillery units)
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circuitry. The tuning scale is calibrated in 50 kHz increments.
43:series radio sets. They entered service with the
109:Dimensions of transceiver: 365 × 385 × 230 mm
59:, superheterodyne radio transceiver based on
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81:band variant used by the air defense forces)
131:"Развитие отечественной военной радиосвязи"
202:Military equipment introduced in the 1950s
106:Operating temperature range: -40 to +50 °C
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23:portable radio transceiver used by the
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77:R-109D (P-109Д) - 21.5 to 28.5 MHz (
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91:Transmitter output power: 1 Watt
17:R-105D Astra-3 (Р-105Д Астра-3)
187:Military electronics of Russia
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197:Radio in the Soviet Union
51:Technical specifications
192:Military radio systems
135:www.computer-museum.ru
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160:www.radioscanner.ru
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34:R-105D transceiver
68:Frequency range:
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112:Weight: 21 kg
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163:. Retrieved
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138:. Retrieved
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181:Categories
117:References
27:military.
156:"Р-105Д"
165:18 June
140:18 June
45:Soviet
25:Soviet
61:valve
19:is a
167:2018
142:2018
41:A-7
21:VHF
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79:HF
57:FM
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