AIRCRAFT RESPONDER Russian patent published in 2008 - IPC G01S13/74 

FIELD: radio electronics.

SUBSTANCE: aircraft responder contains serially connected transmitting-receiving antenna, discrimination filter, receiver, decoder and coder of request and response signal codes, transmitter, the outlet of which is connected to the second inlet of discrimination filter, and control panel, in which device for code keying in is inbuilt. Device for code keying in contains unit of asynchronously operating switches of request and response signal codes. Code switches are connected to certain mode of responder operation and are coupled, on the one side, with corresponding frequency channels of temporary arrangement of pulses of active codes of request and response signals in decoder and coder, and on the other hand, are connected parallel to the second outlet of decoder, at that decoder, coder and control panel with switches form pulse unit, on casing of which control panel is installed with handles for switching of request and response signal codes, located in pilot cabin.

EFFECT: reduction of weight and dimension parameters and power consumption.

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