![](https://www.pdfsearch.io/img/8029763e76b5c1791312b71d70aa1343.jpg) Date: 2002-12-23 09:59:12
| | A Positive Voltage Transmitter Keying Circuit Different transmitters have different PTT (push-to-talk) circuits. We’ll call it a sink-type PTT if grounding the PTT line causes the transmitter to key and removing the grAdd to Reading ListSource URL: www.scomcontrollers.comDownload Document from Source Website File Size: 10,91 KBShare Document on Facebook
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