TONE_BURST_GENERATOR_FOR_EUROPEAN_REPEATERS

Published:2009/7/6 9:07:00 Author:May | From:SeekIC

Most European repeaters must be brought up with a 1750-Hz tone. The SK3733 (also known as an ECG1197) IC contains a crystal oscillator and is divided by -256, 1024, 2048, and 4096. A 7168-kHz crystal is used; the divide-by-4096 output produces a 1750-Hz signal.



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