Automatic signal switching apparatus for a combined transceiver

Details Automatic signal switching apparatus for a combined transceiver Automatic signal switching apparatus for a combined transceiver

1976-05-07

1977-11-29

Safourek, Benedict V.

325302, 325303, 325304, 325311, H04B 138

Patent

active

040607666

ABSTRACT:
An improved automatic switching system for switching between two sources of audio signals in a combination transceiver set and radio or tape recorder set. A transistor in the squelch control circuit of the transceiver set switches the audio signals from either the transceiver set or from the radio or tape recorder set through respective switching diodes to an output amplifier circuit, thereby reducing the complexity and cost of the system.

REFERENCES:
patent: 2968718 (1961-01-01), McKesson
patent: 3493681 (1970-02-01), Richards
patent: 3599099 (1971-08-01), Tatebayashi

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