Class 342/398 - Rotating beacon signal

Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter wherein the direction of the beacon radiation
No. of patents: 42
Last issue date: 05/03/2011

Number	Title	Issue Date
3936829	Method of radio navigation A method of determining, at the site of a radio beacon, the location of any beacon signal reflecting objects, in which method the beacon is caused to transmit a directionally coded signal over a given service sector, in which during said signal transmissi...	02/03/1976
3935576	Broadband beacon antenna system Tactical radio navigation systems provide bearing information to an interrogating aircraft in response to pairs of interrogation pulses received at a beacon transponder, the system also provides distance measuring and identification information. To provid...	01/27/1976

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