FIELD: radio engineering, communication.
SUBSTANCE: portable amplitude radio direction finder has a whip antenna 1 and a frame antenna 2, a main receiving channel 3.1 and an additional receiving channel 3.2, a subtractor 4, a low frequency amplifier 5, a telephone 6, input circuits 7.1 and 7.2, high frequency amplifiers 8.1 and 8.2, frequency converters 9.1 and 9.2, intermediate frequency amplifiers 10.2 and 10.2, a detector 11.1 and 11.2, a platform 12, a reducing gear 13, an angle indicator 14, a divider unit 15, a threshold unit 16, switches 17 and 20, a phase detector 18, a control voltage generating unit 19, a motor 21 and an adder.
EFFECT: high accuracy of determining the azimuth to a radio source and enabling automatic tracking of movements thereof.
5 dwg
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