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

[Jukka Klemola]

>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.

Finns have been served:
http://www.oh6mf.net/elrak/hf/bpf/index.htm


There are more pictures for more universal communications.

Spend some time and explore how Markku, OH6MF, did it.


73,
Jukka OH6LI