Comments - QRQ CW Keying of a TWIN -T sine wave oscillator - LIVE demo @60 wpm - show waveform & spectrum of CW - QRQcw2024-03-28T17:37:23Zhttp://qrqcwnet.ning.com/profiles/comment/feed?attachedTo=1993813%3ABlogPost%3A134884&xn_auth=noanother TWIN-T sinewave CPO k…tag:qrqcwnet.ning.com,2022-06-11:1993813:Comment:1349622022-06-11T14:36:08.433ZChuck aa0hwhttp://qrqcwnet.ning.com/profile/chase
<p><span style="font-size: 12pt;">another TWIN-T sinewave CPO keyed by FLdigi's serial port RTS pin feature... reducing HUM and background noise form the CPO using a simple gate...with adjustable rise/fall time</span></p>
<p><span style="font-size: 12pt;"><iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/Jw-uvHs9PTY?wmode=opaque" width="560"></iframe>
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<p><span style="font-size: 12pt;"><span>this demo uses ZAMGATE to provide the 'gating…</span></span></p>
<p><span style="font-size: 12pt;">another TWIN-T sinewave CPO keyed by FLdigi's serial port RTS pin feature... reducing HUM and background noise form the CPO using a simple gate...with adjustable rise/fall time</span></p>
<p><span style="font-size: 12pt;"><iframe width="560" height="315" src="https://www.youtube.com/embed/Jw-uvHs9PTY?wmode=opaque" frameborder="0" allowfullscreen=""></iframe>
</span></p>
<p><span style="font-size: 12pt;"><span>this demo uses ZAMGATE to provide the 'gating function' the sidetone is a keyed by fldigi and its serial port RTS PIN keying mode... TWIN -T sine wave oscillator with shaped edges...</span></span></p>
<p><span style="font-size: 12pt;"><span><a href="https://www.zamaudio.com/" target="_blank">https://www.zamaudio.com/</a></span> </span></p>
<p><span style="font-size: 12pt;"><span><a href="https://github.com/zamaudio/zam-plugins" target="_blank">https://github.com/zamaudio/zam-plugins</a></span></span></p> Here is a picture of the TWIN…tag:qrqcwnet.ning.com,2022-06-10:1993813:Comment:1349592022-06-10T21:35:50.694ZChuck aa0hwhttp://qrqcwnet.ning.com/profile/chase
<p><span style="font-size: 12pt;">Here is a picture of the TWIN-T sine wave oscillator CW NOTE waveform at 60wpm\</span></p>
<p><span style="font-size: 12pt;"><a href="https://storage.ning.com/topology/rest/1.0/file/get/10561006687?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/10561006687?profile=RESIZE_710x" class="align-full"/></a></span></p>
<p><span style="font-size: 12pt;">Here is a picture of the TWIN-T sine wave oscillator CW NOTE waveform at 60wpm\</span></p>
<p><span style="font-size: 12pt;"><a href="https://storage.ning.com/topology/rest/1.0/file/get/10561006687?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/10561006687?profile=RESIZE_710x" class="align-full"/></a></span></p>