R.F. Power and video modulation monitoring circuit for counterme

Details R.F. Power and video modulation monitoring circuit for counterme R.F. Power and video modulation monitoring circuit for counterme

1978-01-06

1980-03-18

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 18E, G01S 738, G01S 740, H04K 300

Patent

active

041942051

ABSTRACT:
The RF power and video modulation monitoring circuit of the invention provides the unique capability of monitoring the performance of a repeater
oise jammer countermeasures system when the system is operating in either the repeater or the noise jamming mode. In the repeater mode the systems noise level is measured in an unused portion of the countermeasures system frequency band to provide a monitor of system gain and antenna VSWR. In the noise mode crystal detection and threshold comparison provides an indication of RF power output. In either jamming mode the measurement of AC in the detected output provides a monitor of modulation.

REFERENCES:
patent: 2840810 (1958-06-01), Bailey, Jr.
patent: 3543270 (1970-11-01), Wiley, Jr.
patent: 3792475 (1974-02-01), Smetana
patent: 4114152 (1978-09-01), Wiedemann
patent: 4121214 (1978-10-01), Marinaccio et al.
patent: 4122452 (1978-10-01), Richmond

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