AWR CURRENT Volume X, Issue Number 4 December 1994

AWR CURRENT Volume X, Issue Number 4 December 1994
AWR CURRENT Volume X, Issue Number 4 December 1994
Volume X
Issue Number 4
December 1994


AWR-Asia Third Transmitter On the Air

Test broadcasts on the new third transmitter at AWR-Asia began August 1, 1994, and programming, including the newly added Vietnamese broadcasts began on August 15.
The 100-kilowatt transmitter, built by Continental Electronics of Texas, arrived on Guam on June 8. The
transmitter measures nearly 5 meters wide, and 2.43 meters high and deep. The modulator and power supply occupy an area 5 meters wide and deep, and 1.8 meters high.

"This transmitter has a solid state modulation/power supply," says Elvin Vence, chief engineer. “The modulator section is constructed so that even with the failure of some modules, the transmitter will continue to operate until we are off the air and can carry out maintenance?
Vence also said the transmitter has a tunable balun, allowing for "a better match between transmitter and antenna, increasing efficiency. This permits the final tube to run cooler, which extends the life of the tube."
The new transmitter has a data acquisition system that can store meter readings and other operating function data to help in trouble shooting.
"We are also happy that Continental has such fast parts delivery," Vence continued. "Even out here in the Western Pacific, they provide two day delivery."
The installation of this transmitter allows AWR-Asia to add more languages, broadcast in three languages every hour, and to carry one third more prime time broadcasts, said Gordon Retzer, AWR-Asia general manager. Funds for the purchase of the $700,000 transmitter were made available through a bequest to AWR.
Assembly and installation of the transmitter was carried out by AWR engineers Brook Powers, Gary Benton and Christoph Gysin, and student engineer Cameron Settlemier. Fred Riley of Continental Electronics went to Guam for a final check before test broadcasts began. Al McDowell, a member of the AWR board of directors, was a consulting engineer.
AWR has reports that the transmitter signal is being heard very well in target areas.
In addition to Vietnamese, which was added on August 15, Sinhalese for Sri Lanka began airing on the AWR-Asia schedule on September 25.

テーマ : BCL
ジャンル : テレビ・ラジオ





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