Radio transceiver

Details Radio transceiver Radio transceiver

1982-12-13

1984-10-09

Bookbinder, Marc E.

Telecommunications

Transmitter and receiver at same station

With frequency stabilization

455 78, H04B 150

Patent

active

044765754

ABSTRACT:
A radio transceiver has a single reference oscillator and a receiving frequency synthesizer and a transmitting frequency synthesizer. The synthesizer frequencies are selected so that the receiving intermediate frequency and a transmitting intermediate frequency (produced by the transmitted frequency mixing with the received frequency) are spaced widely apart. Thus, any beat note between the two intermediate frequencies is outside the passband or filter bandwidth in the receiver circuit.

REFERENCES:
patent: 3825830 (1974-07-01), O'Connor
patent: 3944925 (1976-03-01), De Laune
patent: 4097805 (1978-06-01), Fujii et al.
patent: 4194151 (1980-03-01), Gregersen et al.
patent: 4310923 (1982-01-01), Kennedy

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