Al'pinist RP-224 1991
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Since 1991, the Alpinist RP-224 portable radio receiver has been produced by the Voronezh PO Polyus. ,86e6f450b8cc469628ba70bf2947b049 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 ... ,86e6f450b8cc469628ba70bf2947b049 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. ,86e6f450b8cc469628ba70bf2947b049 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. ,86e6f450b8cc469628ba70bf2947b049 You can also listen to programs on headphones, the loudspeaker is turned off. ,86e6f450b8cc469628ba70bf2947b049 The AM path is assembled on a field-effect transistor, 2 bipolar and transistor assemblies. ,86e6f450b8cc469628ba70bf2947b049 The ChM path is assembled on 2 microcircuits of the K-174 series. ,86e6f450b8cc469628ba70bf2947b049 The FM path has a non-disconnectable AFC and a disconnected BSHN. ,86e6f450b8cc469628ba70bf2947b049 The receiver is powered by 4 elements A-343, from the mains through the supplied power supply unit. ,86e6f450b8cc469628ba70bf2947b049 Receiver battery life 50 hours. ,86e6f450b8cc469628ba70bf2947b049 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. ,86e6f450b8cc469628ba70bf2947b049 Maximum output power 0.7 W. ,86e6f450b8cc469628ba70bf2947b049 The range of sound frequencies in the AM channels is 200 ... 3150, FM - 200 ... 7100 Hz. ,86e6f450b8cc469628ba70bf2947b049 Dimensions of the radio receiver 220x47x131 mm. ,86e6f450b8cc469628ba70bf2947b049 Weight 0.6 kg. ,86e6f450b8cc469628ba70bf2947b049 ,null,ru,null,null,null,null
Information from collection of Valery Khartchenko