[Elecraft] K3 vs. Icom IC-7600

[dj7mgq at muenchen-mail.de]

> 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