Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Patent
1985-07-03
1987-09-22
Griffin, Robert L.
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
455 25, 455 69, 342 74, 342359, 342360, 342374, 342426, H04B 714
Patent
active
046960538
ABSTRACT:
A method for effecting communication between first and second antennas, includes the steps of (a) mutually displacing the antennas and determining received signal strength at each antenna and positioning said antennas accordingly to obtain a first quality level of communication therebetween; and (b) effecting a second quality level of communication as between the antennas, exceeding the first quality level, by defining a plurality of succeedingly diminishing search movement patterns for each of the first and second antennas, transmitting from the first antenna while displacing the second antenna in one such pattern and detecting the level of receipt of such transmitted energy. The second antenna is now placed in its location of maximum received signal level and transmits while the first antenna is displaced in one of the patterns and its level of receipt of transmitted energy is monitored. The first antenna is now placed in its location of maximum received signal level. This practice of transmitting from one antenna and moving the other in succeedingly diminished patterns and replacement in accordance with received signal strength continues until the desired second quality level of communication is attained. Maintenance of the second quality level of communication is practiced by quite small antenna search patterns on given lessening of communication quality.
The antennas are supported on masts and preferred practice includes the further step of sensing movement of the masts and displacing the antennas responsively to such sensed mast movement in excess of a given threshold level. A system is disclosed for implementation of the practice.
REFERENCES:
patent: 2538063 (1951-01-01), Touvet
patent: 2642567 (1953-06-01), Kimball et al.
patent: 2677822 (1954-05-01), Perilhov
patent: 2871344 (1959-01-01), Busignies
patent: 3312973 (1967-04-01), Rogers
patent: 3560977 (1971-02-01), Cayzac
patent: 4247857 (1981-01-01), Wilcke et al.
patent: 4358767 (1982-11-01), Boieau
DeSantis Charles M.
Jacoby Donald
Linick Bruce
Marinho John
Mastriani Dennis
Canadian Marconi Corporation
Griffin Robert L.
Seidenglanz Elissa
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