Simulcast auto alignment system

Details Simulcast auto alignment system Simulcast auto alignment system

1991-02-01

1992-06-30

Kuntz, Curtis

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 671, H04B 100

Patent

active

051271010

ABSTRACT:
In a multisite radio frequency simulcasting transmission system involving microwave-multiplex distribution paths to several transmitting sites, each path including manually settable amplitude and time delay devices for equalization of the modulation in signal overlap areas among the various transmitter sites, an automatic simulcast alignment device is included in each distribution path whereby transmissions between a control point and each site transmitter are periodically tested and each path is compensated for amplitude and time delay variations to thus maintain equalized amplitude and time of arrival of the modulation in the transmitter site overlap areas. Thus, the instantaneous distribution of the FM modulation sidebands is maintained to be ideally identical in the signal overlap areas.

REFERENCES:
patent: 4317220 (1982-02-01), Martin
patent: 4475246 (1984-10-01), Batlivala
patent: 4516269 (1985-05-01), Krinock
patent: 4570265 (1986-02-01), Thro
patent: 4696052 (1987-09-01), Breedon
patent: 4718109 (1988-01-01), Breeden et al.
patent: 4850032 (1989-07-01), Freeburg
patent: 5014344 (1991-05-01), Goldberg
patent: 5046128 (1991-09-01), Bennett

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