| To: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
|---|---|
| Subject: | Re: [TenTec] Omni VI Mod 3 and RTTY |
| From: | Ken Brown <ken.d.brown@hawaiiantel.net> |
| Reply-to: | ken.d.brown@hawaiiantel.net, Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Mon, 26 Jan 2009 18:44:36 -1000 |
| List-post: | <mailto:tentec@contesting.com> |
How can FSK using the Omni VI FSK keying input be made to splatter? Could you do that by putting too high a baud rate in there? Or could in between proper Mark and Space logic levels make noise from switching diodes or transistors not fully on or off? The FSK input on the Omni VI switches between two padding capacitors in the BFO. Only one BFO frequency can be generated at a time in either Mark or Space mode. There are not two tones to create IMD, just one tone at a time. Even if you over drive a PA, one tone is one tone. How can you mess this up?People will tell you that AFSK can be set up badly, so as to splatter and make a mess. That's true. But then again - so can FSK. DE N6KB |
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