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Total 46 documents matching your query.

41. Re: [TowerTalk] Elevated Vertical (score: 1): Author: "Terry G. Glagowski" <TGlagowski@SBCglobal.net>; Date: Sat, 24 Dec 2011 17:35:35 -0500; I made one of those (still have it, but in storage)... I used 4 elevated radials and had them sloped downward at 30 degrees from horizontal, and the feedpoint about 20 feet high. SWR at feedpoint was; /archives//html/Towertalk/2011-12/msg00623.html (9,425 bytes)
42. Re: [TowerTalk] Elevated vertical (score: 1): Author: k9muf@comcast.net; Date: Sun, 25 Dec 2011 15:26:24 +0000 (UTC); Hi All I just put up an elevated 40 meter vertical. The feedpoint is around 15 feet or so up and I have 8 radials on it right now. I cut the radials the same length of the vertical section. I have a; /archives//html/Towertalk/2011-12/msg00624.html (10,689 bytes)
43. Re: [TowerTalk] Elevated Vertical (score: 1): Author: EZ Rhino <EZRhino@fastmovers.biz>; Date: Sun, 25 Dec 2011 08:35:49 -0700; Terry describes KN5L's field day vertical, as described here: http://www.kn5l.net/fdantenna/ I've built this and it does work pretty good. The link describes how to build and material list. As I reca; /archives//html/Towertalk/2011-12/msg00626.html (10,164 bytes)
44. Re: [TowerTalk] Elevated vertical (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Sun, 25 Dec 2011 13:10:17 -0800; "except for the change due to loss can be a VERY important qualifier." I recently used N6BV's TLW software (free with the ARRL Antenna Book) to do the math for 4.5 wavelengths at 21 MHz for some 75 o; /archives//html/Towertalk/2011-12/msg00633.html (9,528 bytes)
45. Re: [TowerTalk] Elevated vertical (score: 1): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Sun, 25 Dec 2011 18:12:38 -0500; Unless I'm missing something line loss always makes the SWR appear *less*. Line length can bring up nulls and nodes when the antenna is reactive. If the antenna is 50 ohms X= 0 then regardless of lin; /archives//html/Towertalk/2011-12/msg00637.html (9,565 bytes)
46. Re: [TowerTalk] Elevated vertical (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 25 Dec 2011 21:38:22 -0500; Yes, if the characteristic Z of the line is 50 ohms. Not true for lines of other characteristic Z terminated into that antenna. True when a non-reactive load value equals the characteristic Z value; /archives//html/Towertalk/2011-12/msg00641.html (9,031 bytes)

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