Portable VHF-FM radio receiver `` Iren-401 ''.
Portable radio receivers and radios on p / p.DomesticSince 1986, the portable VHF-FM radio receiver "Iren-401" has been producing the Perm Long-Distance Communication Equipment Plant. Iren-401 is the first domestic small-sized receiver designed to receive radio stations in the VHF-FM range. The sensitivity of the model is 18 μV. Selectivity 30 dB. The range of reproducible frequencies is 450 ... 3150 Hz. Rated output power 70 mW. SOI 3%. Power supply - Krone battery. Quiescent current 23 mA. Dimensions 115x65x30 mm. Weight with battery 200 gr. Since autumn 1989, the plant has been producing the Iren RP-301 receiver, continuing the production of the previous model. The circuit of models of different years has differences, in particular, in some batches, the replacement of the first microcircuit with transistors was noticed. The first releases of the receivers were called "Iren", without a class.
