Kvarc-403 1972
Sorry, this page is not translated yet. Automatic translation used.
Since 1972, the portable transistor radio receiver "Quartz-403" has been producing the Kyshtym radio plant. ,86e6f450b8cc469628ba70bf2947b049The model is assembled on the basis of the Sokol-403 radio receiver and is designed to receive radio stations in the DV and SV bands. ,86e6f450b8cc469628ba70bf2947b049The radio is received via an internal magnetic or external antenna. ,86e6f450b8cc469628ba70bf2947b049The sensitivity when receiving on the internal antenna and the output power at the detector is 5 mW and the signal-to-noise ratio of 20 dB is 3.0 mV / m in the LW range, 1.0 mV / m in the MW range. ,86e6f450b8cc469628ba70bf2947b049Selectivity on the adjacent channel is 20 dB in the LW range and 16 dB in the MW, the attenuation of the image channel in both ranges is about 20 dB. ,86e6f450b8cc469628ba70bf2947b049The AGC system provides a change in the signal voltage at the output by 10 dB, with a change at the input by 26 dB. ,86e6f450b8cc469628ba70bf2947b049The volume control range is 40 dB. ,86e6f450b8cc469628ba70bf2947b049The working range of sound frequencies is 450 ... 3150 Hz, the average sound pressure is 0.15 N / m2, the rated output power is 100 mW. ,86e6f450b8cc469628ba70bf2947b049Powered by a Krona battery or a 7D-0.1 battery. ,86e6f450b8cc469628ba70bf2947b049It remains operational when the voltage drops to 5.6 V. The dimensions of the receiver are 170x100x40 mm, and the weight is 480 g (without battery).,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null
Documentation:
Information from collection of Valery Khartchenko