Since 1974, the portable radio receiver "Russia-303" has been produced by the Chelyabinsk PO Polet.
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Portable radio receiver of the 3rd class `` Russia-303 '' is assembled on 8 transistors and 2 diodes.
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It is designed to receive radio stations with AM modulation, in the LW, SV bands on the internal magnetic antenna and in the KB sub-bands, on the telescopic one.
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Frequency ranges: DV - 150 ... 408 kHz, SV - 525 ... 1605 kHz, KV-1 - 9.5 ... 12.1 MHz, KV-2 - 3.95 ... 7.3 MHz
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...
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The IF is 465 kHz.
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Sensitivity in the range of DV - 1.5 mV / m, SV - 0.7 mV / m, KB - 100 μV.
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Selectivity on the adjacent channel in LW and MW - 46 dB.
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Selectivity for the mirror channel in the range of LW - 26 dB, MW - 30 dB, KB - 14 dB.
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AGC action: when the input signal changes by 26 dB, the output voltage changes by 6 dB.
,86e6f450b8cc469628ba70bf2947b049
Rated output power 100 mW.
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The frequency range is 300 ... 3550 Hz.
,86e6f450b8cc469628ba70bf2947b049
Power supply from 4 elements 316. Dimensions of the model 215Ñ…125Ñ…47 mm.
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Weight 1 kg.
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Since 1987, the Russia-303 receiver has been referred to as the Russia RP-303.
,86e6f450b8cc469628ba70bf2947b049
In terms of parameters, it is analogous to the described receiver, and the design is similar to the lilac receiver.
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However, to increase the range of items, the production of the "Russia-303" model also continued.
,86e6f450b8cc469628ba70bf2947b049
During the production process, all elements of the radio receiver, such as a loudspeaker, piezofilter and resistors and capacitors, were replaced with modern ones.
,86e6f450b8cc469628ba70bf2947b049
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