| To: | <topband@contesting.com> |
|---|---|
| Subject: | Re: Topband: Digital mode spurious issues |
| From: | "Tom W8JI" <w8ji@w8ji.com> |
| Reply-to: | Tom W8JI <w8ji@w8ji.com> |
| Date: | Tue, 31 Dec 2013 14:15:50 -0500 |
| List-post: | <topband@contesting.com">mailto:topband@contesting.com> |
Actually, IMD can be produced by ANY keying waveform -- for example, the envelope of a CW or RTTY signal. Let's not divert the issue.A rise and fall is always composed of many frequencies making up sidebands, otherwise it would have no shaping. Even CW is an AM signal, when we look at rise and fall. We are not talking about momentary sidebands generated during level transitions. We are talking about spurious signals up and down the band. _________________ Topband Reflector Archives - http://www.contesting.com/_topband |
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