- 1. [TowerTalk] 1 (score: 1)
- Author: mihry@argontech.net (Mchael D. Ihry)
- Date: Sun, 08 Aug 1999 00:52:22 -0500
- Hi Dave, The reflection that you care about for your high horizontal antennas isn't dependent on where the local water table is located. The ground conductivity in the region immediately below the an
- /archives//html/Towertalk/1999-08/msg00136.html (10,691 bytes)
- 2. [TowerTalk] 1 (score: 1)
- Author: W8JI@contesting.com (Tom Rauch)
- Date: Sun, 8 Aug 1999 14:13:13 -0400
- Can you point me to some reference where I can find the effective d.c. or loss of a stand of trees at HF?? Trees are not like a lake, where it 100% saturated with the lossy media. There is one heck
- /archives//html/Towertalk/1999-08/msg00145.html (8,428 bytes)
- 3. [TowerTalk] 1 (score: 1)
- Author: mcduffie@scottsbluff.net (Gary McDuffie, Sr.)
- Date: Sun, 08 Aug 1999 12:37:42 -0600
- Can't speak for the HF side, but 144 sigs are very much attenuated with trees. There is a tremendous change in signal levels between winter and summer when the vegetation is on the limbs. Of course,
- /archives//html/Towertalk/1999-08/msg00147.html (7,712 bytes)
- 4. [TowerTalk] 1 (score: 1)
- Author: philk5pc@tyler.net (Phil Clements)
- Date: Sun, 8 Aug 1999 14:18:22 -0500
- It seems to me if the woods was thick enough to look like a solid wall of dielectric at HF, neither light nor people nor animals could wade through the mess. I'd wager there is NOT an abrupt change i
- /archives//html/Towertalk/1999-08/msg00149.html (7,509 bytes)
- 5. [TowerTalk] 1 (score: 1)
- Author: W8JI@contesting.com (Tom Rauch)
- Date: Sun, 8 Aug 1999 16:58:16 -0400
- Attenuation and other effects vary with distance the wave travels through the media. In a stand of trees 500 feet thick, we measured almost three dB of extra attenuation on 144 MHz over the same pat
- /archives//html/Towertalk/1999-08/msg00150.html (8,323 bytes)
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