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Army radio "R-323" (Digital) was produced in small quantities since 1961, and serially since 1963. Designed to receive signals with AM and FM modulation, as well as the telegraph. Compiled according to the superheterodyne scheme with 3 transformations on 28 lamps (5 lamps 1Ж29Б and 23 lamps 1Ж24Б). For power supply from AC mains 220 or 127 V, the receiver is equipped with a separate external stabilized rectifier "VS-2.5M". Main technical characteristics: The frequency range of 20 ... 100 MHz (4 sub-bands). Error setting frequency of 10 KHz. Formation / setting frequency smooth local oscillator (LC generator). The frequency display is an optical scale (10/20 KHz resolution). Sensitivity in AM (narrow / wide band) 3/5, FM - 2.5, CW 1 µV. Attenuation in the mirror channel at least 800 times. Bandwidth 8, 25, 85 KHz. Intermediate frequencies 9 MHz; 2.86 MHz; 473 KHz. The output voltage of the LF on one pair of low-impedance phones 4.5 V. CED - 10%. Supply voltage 2.5 V. Operating temperature range -50 50 ° C. Dimensions 225x270x370 mm. Weight 4.5 kg.