Crystalless scanning radio receiver and transmitter

Details Crystalless scanning radio receiver and transmitter Crystalless scanning radio receiver and transmitter

1977-06-02

1979-05-22

Griffin, Robert L.

325470, H04B 140, H04B 132

Patent

active

041561937

ABSTRACT:
A receiver and transmitter apparatus is disclosed which is of the superheterodyne type and is capable of scanning a plurality of channels and receiving and transmitting on such channels. The apparatus incorporates a phase-locked-loop frequency synthesizing means for generating beating signals for use in tuning specific channels and also incorporates means for controlling the frequency synthesizing means and the overall receiver and transmitter operation. The apparatus includes a display for viewing information during its operation.

REFERENCES:
patent: 3962644 (1976-06-01), Baker
patent: 3983484 (1976-09-01), Hodama
patent: 4009451 (1977-02-01), Moore et al.
patent: 4013957 (1977-03-01), Tojo
patent: 4027242 (1977-05-01), Yamanaka

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