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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+\[TowerTalk\]\s+New\s+N6LF\s+Ground\s+Probe\s+Designs\s*$/: 7 ]

Total 7 documents matching your query.

1. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Sat, 2 Mar 2024 09:51:33 -0800
I'm not trying to take away anything from Rudy's excellent work, but he doesn't explain in the posted article what useful advantage we can derive from the measurements. It only gives a spot measureme
/archives//html/Topband/2024-03/msg00002.html (8,196 bytes)

2. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Sat, 2 Mar 2024 12:43:27 -0600
I think there are a couple of reasons I want to try this method. First is that it's a technically cool use of a VNA - which is my personal favorite gadget in general. I live in an area surrounded by
/archives//html/Topband/2024-03/msg00003.html (9,543 bytes)

3. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 2 Mar 2024 11:36:16 -0800
This is a link to ancient FCC maps of soil conductivity to be used by AM broadcast stations. I would expect it to still be good in undeveloped areas. It's in quadrants. As a young EE student, I had a
/archives//html/Topband/2024-03/msg00004.html (8,123 bytes)

4. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Sun, 3 Mar 2024 18:47:02 -0800
There is no definite correlation between land being farmed and RF conductivity. My QTH is classified as "Class 4" soil for Ag. purposes. That's the LOWEST rating. It is 100% clay from the surface do
/archives//html/Topband/2024-03/msg00006.html (8,928 bytes)

5. Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: "Roger Kennedy" <roger@wessexproductions.co.uk>
Date: Mon, 04 Mar 2024 13:12:06 -0500
But what is GOOD Ground for RF? I've always presumed that the reason I do so well for DX with a horizontal 160m Dipole is because the Ground conductivity is POOR . . . so my Dipole is effectively a l
/archives//html/Topband/2024-03/msg00008.html (7,401 bytes)

6. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Mon, 04 Mar 2024 13:48:45 -0500
Salt water, salt marshes, alkaline soil, soil with a high water-table should be good. George I've always presumed that the reason I do so well for DX with a horizontal 160m Dipole is because the Grou
/archives//html/Topband/2024-03/msg00009.html (7,679 bytes)

7. Re: Topband: [TowerTalk] New N6LF Ground Probe Designs (score: 1)
Author: Steve Harrison <k0xp@k0xp.com>
Date: Mon, 4 Mar 2024 11:17:31 -0800
What could be considered a "high water table"?? My water table is maybe 110 - 120 feet down; but if it were shallower, like maybe 30 feet, I might be concerned about the soil over it not being "stiff
/archives//html/Topband/2024-03/msg00010.html (7,335 bytes)


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