True, but I figured more people would be able to build a simple mixer than happen to own a DC receiver, especially if time was a consideration prior to the hamfest (per the original query). And I didn't think the carrier or opposite sidebands from the up conversion would be an issue for a simple demo.
73, Dave AB7E On 8/9/2010 12:19 PM, Don Wilhelm wrote: > Dave, > > You don't have to build that mixer to shift the ham band down to the > audio range, a Softrock receiver will do that. > For that matter, you don't need the I and Q channels, so any DC > receiver without audio filtering after the mixer will do that job too. > Turning it back into RF is the bigger problem. You need an SSB > generator followed by a wide band filter for that unless you want to > tolerate the carrier and the opposite sideband as well. > > 73, > Don W3FPR > > David Gilbert wrote: >> Of course, it would always be possible to build a simple mixer that >> shifted a ham band down to lower than 200 Khz and record that with a >> decent computer sound card, and then mix it back up to feed it into >> the K3. >> > ______________________________________________________________ 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
