Switching system for broadcast transmission

Details Switching system for broadcast transmission Switching system for broadcast transmission

2005-04-19

2005-04-19

Chang, Daniel D. (Department: 2819)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S109000, C333S111000

Reexamination Certificate

active

06882244

ABSTRACT:
An apparatus directs two high-power UHF transmitter signals to one or the other or a combination of output destinations as determined by the setting of control components. Redirection between outputs can be performed continuously under full power. Using the apparatus, synchronous amplifiers directed to the same output produce a signal with all of the power of both amplifiers. The signals can be shifted to the station load without shutting down the amplifiers. After a failure, the remaining amplifier can be redirected to provide a clean signal.

REFERENCES:
patent: 4119931 (1978-10-01), Hudspeth et al.
patent: 6359530 (2002-03-01), Grandchamp

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