Dual frequency band radar detector

Details Dual frequency band radar detector Dual frequency band radar detector

1983-06-15

1986-12-02

Tubbesing, T. H.

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

Radar ew

Detection of surveilance

455166, 455226, 455228, 342103, H04B 1700, H04B 126, G01S 740

Patent

active

046268570

ABSTRACT:
A dual frequency band radar detector responds to radar signals occurring within either of a first or a second range of frequencies. The detector comprises one or more antennas for receiving radar signals including radar signals occurring within the first and second ranges of frequencies. At least one pilot signal at a predetermined frequency is produced for modulating the received radar signals. The modulated signals produced in response to received signals in either of said first range of frequencies or said second range of frequencies are isolated. A detector is coupled in circuit for detecting the one pilot signal in these isolated and modulated signals and a control output signal is produced responsive to the detected pilot signal. Accordingly, the presence of a control output signal indicates the reception of radar signals occurring within at least one of the first and second ranges of frequencies.

REFERENCES:
patent: 4190838 (1980-02-01), Kemp
patent: 4313216 (1982-01-01), Jaeger et al.
patent: 4315261 (1982-02-01), Mosher
D. Mennie, "Helping Speeders Beat the Radar Rap", IEEE Spectrum, Aug. 1978, pp. 38-42, vol. 15, #8.

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