While looking at DH1TW's excellent web site, I followed a link to what
looks like a very neat implementation of the W3NQN-design bandpass filters
in a single unit for 6 bands, with relay switching. This work appears to
have been done by DL2NBU and DL6RAI. The link is
http://www.bavarian-contest-club.de/projects/bandpassfilter/100W-BP.pdf
. It would be a real service to the English-speaking contest community if
someone with the needed language skills could translate this article from
the German. It looks as if the performance is miles better than either the
ICE or Dunestar filters.
Before someone volunteers the info, I know that Array Solutions markets a
similar solution, but the cost is comparatively prohibitive.
73, Pete N4ZR
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
|