Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1973-03-09
1976-03-09
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 5LS, 343 75, G01S 956
Patent
active
039435091
ABSTRACT:
A navigation aiding system primarily for aircraft consists of a number of spaced apart ground stations. A ranging signal is transmitted to each of a number of aircraft in turn in response to received interrogation signals. The system allows a clock carried by each aircraft to be accurately synchronised with a master clock on the ground to permit the range to be measured precisely.
REFERENCES:
patent: 2536496 (1951-01-01), Falloon
patent: 3119107 (1964-01-01), Maresca
patent: 3262111 (1966-07-01), Graham
patent: 3336591 (1967-08-01), Michnik et al.
patent: 3412399 (1968-11-01), Chisholm
patent: 3594799 (1971-07-01), Michnik
patent: 3662391 (1972-05-01), Brown
Elliott Brothers (London) Limited
Montone G. E.
Wilbur Maynard R.
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