FM receiver comprising a circuit arrangement for determining the

Details FM receiver comprising a circuit arrangement for determining the FM receiver comprising a circuit arrangement for determining the

1993-07-22

1996-01-23

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

455 671, 4552261, 455312, H04B 1700

Patent

active

054871778

ABSTRACT:
An FM reciever which provides a rapid determination of the field strength of FM transmitters has a circuit arrangement which includes an FM demodulator and is characterized in that the output signal of the FM demodulator is applied to a comparator which, in response, produces an output signal that will assume a low or a high amplitude. The comparator precedes an integrator stage whose output signal has a high amplitude only when the output signal of the FM demodulator is suitable for field strength evaluation.

REFERENCES:
patent: 3979679 (1976-09-01), Bush et al.
patent: 4203072 (1980-05-01), Beningfield et al.
patent: 4388731 (1983-06-01), King
patent: 4881273 (1989-11-01), Koyama et al.
patent: 4989263 (1991-01-01), Suzuki
patent: 5125105 (1992-06-01), Kennedy et al.
patent: 5199109 (1993-03-01), Baker
patent: 5222254 (1993-06-01), Verron et al.

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