[UK-CONTEST] Bandpass Filters...

[Cooper, Stewart]

Many thanks to all who responded to this request. There were many, so excuse
the general thank you. I am torn between making what I wanted - a set (or
maybe more) of 6 single band filters - or buying what appears like a real
bargain (at the moment), the ICE 419a switchable filter set (about £120 +
P&P) from ArraySolutions. I would however, ideally require two sets, and
could then integrate them into the band switching and antenna selection
relay box for SO2R. The W3LPL filters on K1TTT's web site seem to be the
simplest to make but would require a good spectrum analyser to set up, but I
do have access to one.
For information, suggestions included:
http://www.k1ttt.net/technote/w3lplfil.html
http://www.qsl.net/ok1rr/ffilt.html
http://www.arraysolutions.com/Products/ice/filtersrf.html
http://www.bavarian-contest-club.de/projects/index.html
and:
Clean Up Your Signals with Band-Pass Filters - Part 1 (84,538 bytes, PDF
file)
QST May 1998, pp. 44-48
Clean Up Your Signals with Band-Pass Filters - Part 2 (78,309 bytes, PDF
file)
QST June 1998, pp. 39-42
(ARRL web site login req'd)

So thanks again to all who responded.

Stewart
GM4AFF

Check out http://www.ratemyantenna.com


-----Original Message-----
From: Cooper, Stewart [mailto:coopers at odl.co.uk]
Sent: 16 February 2004 13:16
To: uk-contest at contesting.com
Subject: [UK-CONTEST] Bandpass Filters...


I am looking for some practical designs and component data for bandpass
filters for the amateur HF bands. Similar to ICE, W3NQN, etc. Does anyone
have such a thing?
Thanks,
Stewart GM4AFF
Please reply direct.


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