> I understand that the present bar for in-passband Spurious Free 3rd > Order dynamic range is 120db, set in 2007, but not on the market.
You are, I think, referring to <http://www.xs4all.nl/~martein/pa3ake/hmode/> and the work done by CDG2000 group. Imho, Martein's site is really worth reading. Interestingly "SFDR (Spurious Free Dynamic Range) 112 dB" and "BDR (Blocking Dynamic Range) 125 dB (CW, 500 Hz BW)" are claimed for the QS1R, which has almost no analogue filtering <http://www.srl-llc.com/files/qs1r_revd_specs.pdf>. vy 73 de toby ______________________________________________________________ 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
