Blanker inhibit circuit

Details Blanker inhibit circuit Blanker inhibit circuit

H - Electricity

04

B

325/120

H04B 1/10 (2006.01) H03G 3/20 (2006.01) H03G 3/34 (2006.01)

Patent

CA 1076651

BLANKER INHIBIT CIRCUIT ABSTRACT A radio receiver includes a blanker circuit for muting the receiver in response to interfering noise signals. The invention contemplates a transistor switch which, when biased to its nonconducting state, inhibits blanker action. The transistor is biased to nonconduction when the receiver provided automatic gain control (AGC) level is below the threshold voltage of the transistor. An adjustment is provided for controlling the AGC level at which blanker inhibit is introduced. Temperature compensating circuitry maintains inhibit action response at the threshold voltage with changes in ambient temperature.

271698

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