FIELD: invention refers to radio technique.
SUBSTANCE: in may be used in radio location and radio navigation for receiving reference marks of marked points on locality on indicators of survey radar stations. Achieved technical result is increase of noise immunity of radar responders by way of achieving selectivity of radar transponders on signals of frequency and time parameters of received impulse signals ensuring triggering of radar transponders only on signals of survey radar stations with definite frequency-time parameters. Radar transponder has receiving-transmitting antenna, video amplifier, threshold block, element AND, generator of triggering of pulses, generator of prohibition of pulses, super high frequency generator, generator of saw-tooth voltage of continuous action, band-pass filter and selector of impulses definitely connected for getting indicated technical result.
EFFECT: increases noise immunity of radar transponders.
1 dwg
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