Mike wrote: > First, have you used a direct conversion receiver?... > Now add that back end you mention. There is so much "magic" that can be > done there. Of course, its not really magic. Its digital signal processing. > ... > Bottom line, its a very sound way to implement a rig these days.
This is a little off-topic for the Elecraft list, but with respect to SDR technology mentioned above, it's very interesting (to me, anyway) that a Chinese 2m/70cm FCC part 90 HT (Baofeng UV-3R) has been available for a year that is implemented using SDR technology through a RDA1846 chip. The very interesting data sheet showing the I/Q and DSP components of the chip is at http://versatechmicro.com/file/RDA1846_datasheet_v1.2e.pdf . How much are these pioneering SDR HTs? They're all over the hamfest circuit for $50 to $60, or from China direct for much less. Ignoring the various issues with this low cost and not-quite ham gear, I am amazed at finding full SDR technology now appearing within **very very inexpensive** radio gear. Doubtless, SDR is the future of radio electronics. 73, Mike / KK5F ______________________________________________________________ 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