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Total 6 documents matching your query.

1. Topband: Shunt fed T (score: 1): Author: "john" <jb@beaumonts.karoo.co.uk>; Date: Mon, 04 Jan 2010 07:49:05 -0800; I posted over christmas a question of gamma matching, thanks to everyone for the replies. Could anyone advise me about top loading when 4 wires are use as an alternative to 2 with this type of antenn; /archives//html/Topband/2010-01/msg00040.html (7,532 bytes)
2. Re: Topband: Shunt fed T (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Mon, 04 Jan 2010 12:41:08 -0400; Am I on the right lines, what if I use 4 wires the reason been its better for guying and I thought the 4 shorter ones mean less cancellation of the vertical radiator!! Obviously I can use 2 rope for; /archives//html/Topband/2010-01/msg00044.html (8,065 bytes)
3. Re: Topband: Shunt fed T (score: 1): Author: "Gary Hinson" <Gary@isect.com>; Date: Tue, 5 Jan 2010 08:49:43 +1300; John, Though I am no expert, I think you are on the right lines. The Tee-top, or X-top, or disc-top, or self-supporting top-hat are all, to my mind, working as "capacity hats". As with earth radials; /archives//html/Topband/2010-01/msg00046.html (7,564 bytes)
4. Re: Topband: Shunt fed T (score: 1): Author: "John G3PQA" <g3pqa@onetel.com>; Date: Mon, 04 Jan 2010 22:02:42 -0800; Could anyone advise me about top loading when 4 wires are use as an alternative to 2 with this type of antenna. My present antenna is 82ft vertical with 4 top lading wires each 35ft long, I have been; /archives//html/Topband/2010-01/msg00053.html (8,018 bytes)
5. Re: Topband: Shunt fed T (score: 1): Author: Herbert Schoenbohm <herbs@vitelcom.net>; Date: Tue, 05 Jan 2010 05:48:59 -0400; Thanks for the EZNEC model John. Are the wires in your model sloping down or straight as a 45 degree slope would tend to make them appear a bit shorter?. I think the match on 1.8mhz may be easier wit; /archives//html/Topband/2010-01/msg00054.html (10,094 bytes)
6. Re: Topband: Shunt fed T (score: 1): Author: "John G3PQA" <g3pqa@onetel.com>; Date: Tue, 05 Jan 2010 08:26:32 -0800; Thanks for the EZNEC model John. Are the wires in your model sloping down or straight as a 45 degree slope would tend to make them appear a bit shorter?. Yes, it was assuming 45 deg slope, and all 0.; /archives//html/Topband/2010-01/msg00056.html (8,639 bytes)

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