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21. Re: [TowerTalk] Vertical in pond (score: 1): Author: Dan Zimmerman N3OX <n3ox@n3ox.net>; Date: Wed, 18 Mar 2009 02:04:35 -0400; "Could a fresh water pond have sufficient minerals dissolved in it to be helpful? Even if not salt in the water, I think it could be useful in the same way." I can tell you that water that's been cor; /archives//html/Towertalk/2009-03/msg00520.html (10,240 bytes)
22. Re: [TowerTalk] Vertical in pond (score: 1): Author: Dan Zimmerman N3OX <n3ox@n3ox.net>; Date: Wed, 18 Mar 2009 02:13:32 -0400; I think I totally ignored mismatch losses Re: the 17dB total loss in my calculation ... turns out filling a line with water tends to alter its characteristic impedance. So I may be a good bit off wit; /archives//html/Towertalk/2009-03/msg00521.html (8,862 bytes)
23. Re: [TowerTalk] Vertical in pond (score: 1): Author: Michael Tope <W4EF@dellroy.com>; Date: Wed, 18 Mar 2009 00:01:15 -0700; That water station data is interesting, Dan. There seems to be at least some correlation between that big conductance spike and the turbidity. Perhaps it depends on who is flushing their toilet upstr; /archives//html/Towertalk/2009-03/msg00523.html (10,712 bytes)
24. Re: [TowerTalk] Vertical in pond (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Wed, 18 Mar 2009 05:32:17 -0400; I think it'd be comparable or better than a normal earth ground close to the antenna system and give a more predictable elevation pattern. 73 Roger (K8RI) ____________________________________________; /archives//html/Towertalk/2009-03/msg00524.html (11,564 bytes)
25. Re: [TowerTalk] Vertical in pond (score: 1): Author: N6FD <n6fd@mchsi.com>; Date: Wed, 18 Mar 2009 08:33:11 -0700; Given the location of that river, it is quite possible that someone dumped something in there that changed the conductivity :-) _______________________________________________ _______________________; /archives//html/Towertalk/2009-03/msg00531.html (10,932 bytes)
26. Re: [TowerTalk] Vertical in pond (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Wed, 18 Mar 2009 12:03:03 -0400; Just because they are a "broadcast station" doesn't necessarily mean they knew what they were doing when they built it. I know of a station that is built on top of a large rocky hill. It has terrible; /archives//html/Towertalk/2009-03/msg00532.html (11,453 bytes)
27. Re: [TowerTalk] vertical in pond (score: 1): Author: jim Jarvis <jimjarvis@optonline.net>; Date: Wed, 18 Mar 2009 13:42:35 -0400; The issue of a freshwater pond being a better location than rocky soil has been discussed at length. While the pond itself might not be highly conductive, the mud around it is a lot better than dry d; /archives//html/Towertalk/2009-03/msg00537.html (8,818 bytes)
28. Re: [TowerTalk] Vertical in pond (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Wed, 18 Mar 2009 12:59:37 -0500; Actually for a 1 kw station on 1340 with a 73 degree stick you get out pretty well. I looked at your contours and the fringe looks like it's about 80 miles from your tx site. not bad for 1 kw non-DA; /archives//html/Towertalk/2009-03/msg00540.html (9,138 bytes)
29. Re: [TowerTalk] Vertical in pond (score: 1): Author: Dan Zimmerman N3OX <n3ox@n3ox.net>; Date: Wed, 18 Mar 2009 14:46:43 -0400; I was outside pondering the vast amount of ice melter they use around here when we get (infrequent) snows and it occured to me that it's very possibly runoff from heavily salted parking lots. 73 Dan; /archives//html/Towertalk/2009-03/msg00543.html (8,802 bytes)
30. [TowerTalk] vertical in pond (score: 1): Author: "Dave Johnson" <djohnson@windstream.net>; Date: Wed, 18 Mar 2009 13:17:23 -0400; More proof that fresh water is more of a insulator than a reflector is found in the very fine article "The 3Y0X Peter 1 Island 160 Meter Beam" by K4DLI and W6XX in the March 2009 QST on page 37. I kn; /archives//html/Towertalk/2009-03/msg00562.html (8,502 bytes)
31. Re: [TowerTalk] vertical in pond (score: 1): Author: Richards <jruing@ameritech.net>; Date: Thu, 19 Mar 2009 09:11:22 -0400; The discussion on putting your antenna over a bod of fresh water leaves me with these general conclusions: 1) It is difficult to quantify the positive effects of placing your antenna over fresh water; /archives//html/Towertalk/2009-03/msg00567.html (8,872 bytes)
32. Re: [TowerTalk] vertical in pond (score: 1): Author: Dan Zimmerman N3OX <n3ox@n3ox.net>; Date: Thu, 19 Mar 2009 09:42:11 -0400; was only a few feet above >the fresh water ice. Ice and water have very different dielectric and conductive properties. _______________________________________________ ______________________________; /archives//html/Towertalk/2009-03/msg00568.html (8,094 bytes)
33. Re: [TowerTalk] vertical in pond (score: 1): Author: Jon Kåre Hellan <hellan@acm.org>; Date: Thu, 19 Mar 2009 21:35:16 +0100; And at Peter Island, the ice was thick, and there was very little biological matter underneath. Underneath a shallow lake, the bottom is soaked. If there are also ions, conductivity should be good. S; /archives//html/Towertalk/2009-03/msg00582.html (8,623 bytes)

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