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431. A transmitter operating on 5000 kHz uses a 1000 kHz crystal with a tempered coefficient of — 4 Hz/MHz/0 degrees centigrade. What is the change in the output frequency of the transmitter if the temperature increases 6 degrees centigrade?
The crystal's negative temperature coefficient causes its frequency to decrease as temperature increases. This decrease is amplified by the transmitter's multiplication factor, resulting in an output frequency of 4999.88 kHz.
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