A classic comb generator products equal level harmonics. In the time domain, it is an impulse waveform--in the limit infinitely narrow. It can be approximated by differentiating a fast rise/fall square wave with an RC circuit.
If you search "comb generator" you can find many implementations on the Internet. Jack K8ZOA On 4/16/2011 8:15 AM, David Cutter wrote: > For my education: what is the mark-space ratio to develop optimum even and > odd harmonics? Does this have any merit? > > David > G3UNA > > >> And by the way, the XG1 and XG2 also have more or less square-wave >> output. This is where the harmonics come from that allow them to put >> out a useful signal on higher bands. >> >> For the intended applications, this waveform is not an issue, because >> the receiver under test will virtually always have a low-pass filter >> at its antenna input. >> >> 73, >> Wayne >> N6KR >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
