Radio receiver audio attenuator

Details Radio receiver audio attenuator Radio receiver audio attenuator

H - Electricity

04

B

325/101

H04B 1/10 (2006.01) H03G 1/00 (2006.01) H03G 3/30 (2006.01)

Patent

CA 1129011

C-3033 D-2,195 Abstract of the Disclosure A radio receiver includes apparatus for attenuating the audio signal derived from weak and noisy radio frequency signals to render the resulting noisy output audio signals less objectionable. Apparatus is provided to attenuate the AGC audio frequency signal in a predetermined constant attenuation, linearly mix the AGC regulated and attenuated audio frequency signals in a proportion controlled by an attenuation control signal and generate the attenuation control signal from the difference between the radio AGC signal and a predetermined constant reference.

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