Of course the K3 has already done most of this, and then thrown Q away at the last minute. The upconvert is, of course, done by the transmitter.
Alan Bloom wrote: > The other way to get the I/Q signals is with an I/Q modulator. > Basically you run the baseband audio signal into two mixers whose local > oscillators are 90 degrees out of phase. Now you have two RF signals 90 > degrees out of phase. If you convert them back to baseband with the > same oscillator you get two audio signals 90 degrees out of phase and > can combine them as before. You then combine that signal with the > original to simulate rotation of the directional antenna. > -- David Woolley "we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> ______________________________________________________________ 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
