Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1974-11-15
1976-08-03
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 130
Patent
active
039732614
ABSTRACT:
In a phase comparison radio navigation system using transmissions from spaced stations in a time-sequence, for synchronising the timing of the transmissions, and for synchronising switching in a receiver, the timing control means include digital counting means counting down from the output of an oscillator phase locked to one of the received signals, and a timing identification signal is transmitted from one station for initially synchronising the counter timing.
REFERENCES:
patent: 3689925 (1972-09-01), Hulland
patent: 3761932 (1973-09-01), Fujimoto
Berger Richard E.
Connors Edward F.
Decca Limited
Wilbur Maynard R.
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