PTT_CONTROL_FROM_RECEIVER_AUDIO

Published:2009/6/18 2:51:00 Author:May | From:SeekIC

This system will key a transmitter or other device that can be keyed by a relay closure. Audio is amplified, limited, and is rectified and drives relay driver Q2 and LED indicator. The transmitter au-dio output was used to feed a keyed transmitter and can be deleted or ignored where this feature is unnecessary.



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