Since 1991, the Alpinist RP-224 portable radio receiver has been produced by the Voronezh PO Polyus.
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The portable radio receiver Alpinist RP-224 is designed to receive radio stations in the ranges DV - 2020.2 ... 1058.2 m, SV - 569.8 ... 186.7 m, KV - 31.58 ...
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30.30 m and VHF - 4.56..4.05 m. Reception of stations in the LW and SV bands is carried out on magnetic, KB and VHF on telescopic antennas.
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The use of the wideband head ZGDSH-8-4 and the correction of the frequency response in the low-frequency region made the sound of the receiver soft and balanced.
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You can also listen to programs on headphones, the loudspeaker is turned off.
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The AM path is assembled on a field-effect transistor, 2 bipolar and transistor assemblies.
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The ChM path is assembled on 2 microcircuits of the K-174 series.
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The FM path has a non-disconnectable AFC and a disconnected BSHN.
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The receiver is powered by 4 elements A-343, from the mains through the supplied power supply unit.
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Receiver battery life 50 hours.
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Sensitivity in the ranges: DV - 1.5 mV / m, SV - 0.7 mV / m, KB - 0.3 μV, VHF-FM - 100 μV.
,86e6f450b8cc469628ba70bf2947b049
Selectivity 30 dB.
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Maximum output power 0.7 W.
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The range of sound frequencies in the AM channels is 200 ... 3150, FM - 200 ... 7100 Hz.
,86e6f450b8cc469628ba70bf2947b049
Dimensions of the radio receiver 220x47x131 mm.
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Weight 0.6 kg.
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