You may want to consider a Quadrifilar Helix antenna. I think it will accomplish what you're looking for. I just built one using the design in the most recent QST and am very pleased with the results. I'm sure its easier to construct than a lindenblad as well. I did mine in less than 3 hours. I could do it again in half that time now that I know how.
Tim KI6VBY
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, October 13, 2009 12:00 PM To: [email protected] Subject: AMSAT-BB Digest, Vol 4, Issue 532
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