To: | <tentec@contesting.com> |
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Subject: | [TenTec] Johnson Antenna Tuners article in Electric Radio,March2001. |
From: | geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer) |
Date: | Thu, 05 Apr 2001 12:06:12 -0600 |
Years ago running Mininec on an Apple ][+, I worked out that if a double extended zepp was something like 82 or 85' feet long and feed with a 300 ohm line 200 feet long, it was nearly resistive on all bands from 20 to 6m. N0AN put one up like that fed with Belden 8290 shielded twin lead and it did have a decent match through 4:1 balun over that range. Above 20m, the pattern does break out into a cloverleaf with a null broadside. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com |
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