| 摘要 |
A system of the type wherein transmissions of the same information are simultaneously broadcast by spatially removed transmitter sites. A control center establishes transmission links to the transmitter sites. The center includes electronic storage which supplies the required time delay for each signal applied over a predetermined link to assure phase coherency of overlapping transmissions. Upon the establishment of a new link, a new set of time delays is recalled from memory and used to program a bucket brigade to thereby provide the required delay to signals carried over the link.
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