Automatic switching system for a combination transceiver-auxilli

Details Automatic switching system for a combination transceiver-auxilli Automatic switching system for a combination transceiver-auxilli

1977-09-08

1980-08-05

Martin, John C.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455296, H04B 140, H04B 144

Patent

active

042164320

ABSTRACT:
In a radio of the type having a selectively operable transmitter portion and an associated receiver portion for two-way communication, such as a CB radio, plus an auxilliary receiver for reproducing auxilliary audio signals, such as an AM/FM radio, a system is provided for automatically interrupting the audio signal output of the auxilliary receiver whenever the transmitter portion is operated. When the transmit/receive switch is in the transmit position, an auxilliary electronic switch interrupts the audio output of the auxilliary receiver by by-passing to ground the audio signal input to the audio amplifier section of the auxilliary receiver.

REFERENCES:
patent: 3887872 (1975-06-01), Sharpe
George Sante "CB Switcher for Music Between Calls" 12-3-77, Radio-Electronic, pp. 40-41.

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