Frequency control systems

Details Frequency control systems Frequency control systems

1977-12-19

1979-12-18

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 12A, G01S 902

Patent

active

041796942

ABSTRACT:
An AFC system for a radar comprising means for changing in one sense a control voltage fed to a voltage controlled local oscillator forming part of the radar receiver when a predetermined number of cycles of a difference frequency between a local oscillator and a transmitted radar frequency obtain during a predetermined period until less than the predetermined number of cycles obtain whereupon the voltage is changed in the opposite sense whereby the frequency of the local oscillator is automatically controlled.

REFERENCES:
patent: 3569965 (1971-03-01), Bagley

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