Portable radio `` Alpinist RP-224-1 ''.

Portable radio receivers and radios on p / p.DomesticThe Alpinist RP-224-1 portable radio receiver has been produced by the Voronezh PO Polyus since 1992. The radio receiver of the 2nd group of complexity "Alpinist RP-224-1" is created on the basis of a 4-band receiver "Alpinist RP-224", differing from it by the presence of only two; LW and MW bands. The electrical diagram of the receiver has been correspondingly revised and greatly simplified. The technical parameters of the receiver generally correspond to the base receiver, but the Alpinist RP-224-1 is distinguished by a fairly high real sensitivity, at least 800 μV in the LW and 500 μV in the MW range, high selectivity, 30 dB in adjacent and mirror channels, quite high up to 1 W, when powered from the mains, the output power and relatively high sound quality 200 ... 3150 Hz, with THD less than 0.5%.