|To:||Tim Holmes <W8TAH@Zoominternet.net>, email@example.com|
|Subject:||Re: [TowerTalk] Cable TV hardline question|
|Date:||Fri, 29 Oct 2004 14:45:32 -0400|
The 50 to 75 Ohm transmission line transformer (TLT) described by Sevick work well. Used a couple of homemade TLTs (one at each end of a 200 ft run of CATV hardline) with 1500 Watt RTTY and they survived. They were used for HF for 80 thru 10 meter antennas.
At 12:08 PM 10/29/04, Bob Pack, NX5M wrote:
Build 1/12th wave coaxial transformers on each end. Easily done if you are not happy with the swr. My last install for a 20m stack was almost 300 feet of the 3/4" catv with trannys on each end. Tested into a dummy load I could find no swr to speak of.....and the swr after all the antennas were up in my worst case combination is no higher than 1.3:1. I might add that I am also using 1/2" catv from the phasing/switchbox to the tail of RG213 connected to the antennas.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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