Frequency synthesis method for an AM-SSB transmitter-receiver

Details Frequency synthesis method for an AM-SSB transmitter-receiver Frequency synthesis method for an AM-SSB transmitter-receiver

1977-05-03

1979-07-24

Griffin, Robert L.

325 25, H04B 140

Patent

active

041624475

ABSTRACT:
A frequency synthesis method for an AM-SSB transmitter-receiver using a phase locked loop type synthesizer, having the steps of supplying a mixer with an offset frequency of an offset oscillator or a multiplied frequency thereof and an output frequency of a voltage-controlled oscillator, applying a difference signal outputted from the mixer to a variable frequency divider, and using a sum signal frequency outputted from the mixer as the local oscillation frequency of the receiver section and that of a mixer of the transmitter section where a transmitting frequency is produced.

REFERENCES:
patent: 3696422 (1972-10-01), Burrell
patent: 3944925 (1976-03-01), De Laune
patent: 3983484 (1976-09-01), Hodama
patent: 4002995 (1977-01-01), Reed
patent: 4061973 (1977-12-01), Reimers

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