Radio receiver `` Meridian ''.
Portable radio receivers and radios on p / p.DomesticSince 1967 the radio receiver "Meridian" has been produced by the Kiev plant "Radiopribor". The radio receiver `` Meredian '' is designed to receive radio stations in the DV, SV and HF bands, split into 4 sub-bands, 3 extended (25, 31, 41) and 1 half-extended (49 ... 75 m). In terms of electro-acoustic parameters, the receiver meets the requirements for portable models of the 2nd class, and in terms of sensitivity and selectivity in the adjacent and mirror channels in the MW and AGC range it surpasses them. One of the important operational advantages in comparison with other similar receivers is the presence of a magnetic antenna, in addition to a telescopic antenna on short-wave subbands, operating with a fairly high efficiency. The receiver circuit is made on 10 transistors. The receiver was also produced for export, the difference of which was only in the inscriptions in English. The main parameters of the receiver are as follows: Real sensitivity when receiving on a magnetic antenna in the LW range - 1.5 mV / m, SV - 0.8 mV / m, KV-1 ... KB-IV - 0.4 mV / m, on telescopic antenna in the ranges KB-I ... KBIII 50 μV, KV-IV 100 μV. Selectivity but adjacent channel (at 10 kHz detuning) is not worse than 46 dB. Selectivity on the mirror channel in the ranges: LW 40 dB, CB 30 dB, and KB 12 dB. AGC works in such a way that when the voltage at the input of the receiver changes by 40 dB, the voltage at the output changes by 6 dB. The rated output power of the receiver is 150 mW with a harmonic distortion factor of 7%. Maximum output power 350 mW. The frequency band reproduced by the 1GD-28 loudspeaker is 200 ... 4000 Hz. Average sound pressure at rated power 0.25 N / m. The receiver is powered by 2 KBSL-0.5 batteries or 6 cells of type 343. The consumed current in the silent mode is 11 mA, and at a rated output power of 50 mA. The dimensions of the radio receiver are 260x155x69. Its weight is 1.8 kg.
