I used a "tab matching" method taught to me by Joe, K0VTY. Just a strip of copper following the first 90* of the helix. Adjust the distance to the wire for min. SWR. This was for L band antennas. Miss L & S stuff on satellites, and, you know. 73 Bob W7LRD
----- Original Message ----- From: "n0jy" n0jy@n0jy.org To: amsat-bb@amsat.org Sent: Friday, September 27, 2013 6:05:20 PM Subject: [amsat-bb] Re: Helix matching
On 9/27/2013 6:05 PM, Joe Fitzgerald wrote:
In my limited experience, it's easier to diddle around with a strip of brass or copper at the feed end of the Helix..
In addition to being easier for my practically non-existent construction abilities, I think the strip of brass or copper might be more forgiving, too. It worked for my VE3NPC helix http://n0jy.org/Antennas.aspx http://n0jy.org/images/L%20Band%20Array-2.ppt but given my abilities, I'm not sure how!
Jerry N0JY
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