[CQ-Contest] 6-band W3NQN-design filter unit

Pete Smith n4zr at contesting.com
Tue Sep 2 06:25:09 EDT 2008

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 
.  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

More information about the CQ-Contest mailing list