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Total 126 documents matching your query.

121. Re: [TowerTalk] W7PUA Tiny Ground Probe (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Wed, 4 Mar 2026 17:05:35 -0800
"But it does show trends that can help us think about the viability of vertical antennas..." The FCC conductivity map indicates a conductivity of 4 mS/m for N6LF's QTH in Oregon. In January Rudy meas
/archives//html/Towertalk/2026-03/msg00019.html (9,684 bytes)

122. Re: [TowerTalk] New antenna? (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Tue, 31 Mar 2026 09:47:05 -0700
"I've been 'recommending' to hams that they should, if possible, buy a Yagi of computer aided design. Roger Cox did this at Hy-gain and I believe his are the oldest computer-aided design Yagis." I li
/archives//html/Towertalk/2026-03/msg00063.html (9,491 bytes)

123. Re: [TowerTalk] New antenna? (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Wed, 1 Apr 2026 02:56:14 -0700
"All of the Hy-Gain and M2 monobanders that I have seen the manuals for are not directly fed Yagis." As far as I know, Hy-Gain never made an OWA. The M2 Yagis with closely spaced directors intended t
/archives//html/Towertalk/2026-04/msg00002.html (7,819 bytes)

124. Re: [TowerTalk] More Interference Pattern (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Wed, 15 Apr 2026 18:16:46 -0700
"Keep in mind that the RF ground plane is almost certainly not at the surface of the physical ground." Dave, the notion of a ground plane makes sense for perfectly conducting ground. And it's not far
/archives//html/Towertalk/2026-04/msg00043.html (10,284 bytes)

125. Re: [TowerTalk] More Interference Pattern (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Thu, 16 Apr 2026 03:45:06 -0700
"I have a drone that I have once or twice used to plot the elevation pattern of an antenna..." Dave, here are a few papers on antenna measurement using a drone that may interest you. I only did a qui
/archives//html/Towertalk/2026-04/msg00045.html (9,320 bytes)

126. [TowerTalk] ionosphere Re: More Interference Pattern (score: 1)
Author: Brian Beezley <k6sti@att.net>
Date: Thu, 16 Apr 2026 17:24:21 -0700
"There are a fair number of people who have done polarization diversity receiving. A big X is popular (because it's easier to build than a big cross, and the two sloped elements have similar ground e
/archives//html/Towertalk/2026-04/msg00050.html (9,500 bytes)

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