FIELD: physics; radio.
SUBSTANCE: superheterodyne receiver relates to radio engineering and can be used in radio systems for different purposes. The superheterodyne receiver comprises a reception antenna, a radio frequency amplifier, first and second band-pass filters, first and second devices for measuring signal-to-noise ratio, an electronic switch, a comparator unit, a switch, a mixer, a heterodyne, an intermediate frequency amplifier, an AGC circuit, a detector, a modulation frequency amplifier and a terminal device.
EFFECT: increased noise immunity due to reception of useful information at frequencies of the main and image reception channels.
2 dwg
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