Radar detector

Details Radar detector Radar detector

1992-11-12

1994-05-24

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

Detection of surveilance

G01S 740

Patent

active

053153022

ABSTRACT:
For receiving radar waves entering an antenna horn by the heterodyne method, the system is designed so that one of the local oscillation signals produced respectively by a local oscillator for the X- and K-band radar waves, a local oscillator for the Ka-band radar wave, and a local oscillator for leaked local oscillation waves can be selected to be used as the first local oscillation signal for beating down the radar waves at a first mixer. When a radar wave has been detected in the Ka-band receiving mode with the local oscillator for the Ka-band being selected, a signal processing circuit sets the heterodyne receiving system to the leaked local oscillation wave receiving mode, selecting the local oscillator for the leaked local oscillation waves as the first local oscillator. If a radar wave is detected in this mode, the signal processing circuit inhibits a warning apparatus from issuing the regular warning.

REFERENCES:
patent: 4581769 (1986-04-01), Grimsley et al.
patent: 5068663 (1991-11-01), Valentine et al.

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