Understanding Television What It is And How It Works
Understanding Television What It is And How It Works
Orrin Elmer Dunlap
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The pattern should be round, clear, and steady with distinct shades, or gradations of black and white. When the set is properly tuned, these five shades of gray are discernible on the circles in the center of the test pattern. The converging lines should be clear and sharply separated all the way to the center. By means of the "brightness control' 7 and the "contrast control" knobs, the observer is able to adjust the various shades of gray in the pattern. TESTING YOUR TELEVISION I. Q. 107 histo...ric telecasts on film. Q. How jar away can I pic\ up a television station? A. This depends upon local terrain, the power of the station, height of your antenna and proper installa- tion of your set. Generally, you can directly receive a station 30 to 40 miles. Q. What is a remote pickup in television? A. Whenever you see a television program that orig- inates outside the main studios, you're witnessing a remote pickup. Mobile transmitters accompany the tele- vision cameramen and flash pictures back to the main television transmitter, which puts the program on the air for reception on your set.
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