FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering and can be used in receiving devices, in particular in receiving devices of radio relay communication. To achieve such a technical result, a superheterodyne receiver comprising: two antennas of vertical and horizontal polarization (1, 2), two input circuits (3, 4), two radio frequency amplifiers (5, 6), two mixers (9, 10), two intermediate frequency amplifiers (14, 15), two detectors (16, 17), two keys (18, 19), two signal-to-noise ratio meters (7, 8), heterodyne (11), electronic switch (20), comparator unit (21), adder (22), modulation frequency amplifier (23), terminal device (24), two controlled amplifiers (12, 13) are introduced, two low-pass filters (25, 28), two DC amplifiers (26, 29), two logarithmic detectors/controllers (27, 30).
EFFECT: providing independent operation of the system for automatic gain control of vertical and horizontal polarization channels.
1 cl, 2 dwg
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SU1734052A1 |
Authors
Dates
2025-02-19—Published
2024-08-15—Filed