Dual frequency FM receiver

Details Dual frequency FM receiver Dual frequency FM receiver

1975-07-16

1976-08-10

Habecker, Thomas B.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343206, 325437, H04B 106

Patent

active

039744507

ABSTRACT:
A receiver is disclosed which will receive signals on either one of two closely spaced frequencies. The receiver is of the superheterodyne type and has a local oscillator frequency midway between the two frequencies which the receiver is tuned to. The receiver also includes a tone squelch circuit which mutes the audio unless a tone is received for a period of time.

REFERENCES:
patent: 1764751 (1930-06-01), Roberts
patent: 2955199 (1960-10-01), Mindes
patent: 3035171 (1962-05-01), Manke

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