The portable radio receiver "Russia-303-1" has been produced by the Chelyabinsk PO Polet since 1982.
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The radio was created on the basis of the Russia-303 model, but unlike it, it has a socket for an external power supply unit, which could have been included in the kit.
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The scheme and design of the model has been changed accordingly.
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The radio receiver is designed for reception in the LW and MW bands on a magnetic antenna and in two KB sub-bands on a telescopic antenna.
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Power supply 4 elements 316. Current consumption, in the absence of signal 10 mA.
,86e6f450b8cc469628ba70bf2947b049
The operability remains at a decrease in the supply voltage to 3.5 V. The duration of operation at an average volume from fresh batteries is 50 hours.
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The receiver has a regulator for fine tuning in the HF sub-bands, jacks for an external antenna and a miniature telephone.
,86e6f450b8cc469628ba70bf2947b049
Ranges: DV 150 ... 408 kHz, SV 525 ... 1605 kHz, KV1 9.5 ... 12.1 MHz, KV2 3.95 ... 7.3 MHz.
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IF 465 kHz.
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Sensitivity in the ranges of DV - 1.5 mV / m, SV - 0.7 mV / m, in both KB sub-ranges of 100 μV.
,86e6f450b8cc469628ba70bf2947b049
Selectivity 46 dB.
,86e6f450b8cc469628ba70bf2947b049
The nominal output power is about 100 mW, the maximum is 150 mW.
,86e6f450b8cc469628ba70bf2947b049
The band of reproducible sound frequencies is 300 ... 3550 Hz.
,86e6f450b8cc469628ba70bf2947b049
Average sound pressure 0.25 Pa.
,86e6f450b8cc469628ba70bf2947b049
Receiver dimensions 215Ñ…125Ñ…47 mm.
,86e6f450b8cc469628ba70bf2947b049
Weight 1 kg.
,86e6f450b8cc469628ba70bf2947b049
Since 1987, the radio has been produced under the name "Russia RP-303-1".
,86e6f450b8cc469628ba70bf2947b049
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