Mail Archive Search: <+from:dick.green@VALLEY.NET>

Results:

References: [ +from:dick.green@VALLEY.NET: 337 ]

Total 337 documents matching your query.

201. [TowerTalk] FS: Johnson KW Matchbox (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Tue, 21 Jul 1998 18:47:11 -0400; So, a matching coil for a shortened 80M vertical would be OK, but a matching network in a box isn't OK? --Original Message-- From: Bill Fisher - W4AN <w4an@contesting.com> To: Pete Smith <n4zr@contes; /archives//html/Towertalk/1998-07/msg00644.html (8,458 bytes)
202. [TowerTalk] Steve's antenna study (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Tue, 21 Jul 1998 18:40:24 -0400; Right. The conventional wisdom on Tower Talk has been that, barring lossy coax and/or matching networks, the reflected energy does eventually get radiated by the antenna, with only minor losses. For; /archives//html/Towertalk/1998-07/msg00645.html (14,618 bytes)
203. [TowerTalk] mismatch loss and SWR (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 22 Jul 1998 19:59:18 -0400; Yikes! I didn't mean to start this particular thread. I recall one just like it on the amps reflector. Eventually, we all got down to the same terminology and conclusions that are emerging here. In E; /archives//html/Towertalk/1998-07/msg00705.html (11,023 bytes)
204. [TowerTalk] Buried Guy Anchor Question (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 22 Jul 1998 19:59:44 -0400; Many commercial installations have fences around the anchor points. I guess the guy attachment points must be pretty high or the anchors must be elevated because the entry angle for the guys is suffi; /archives//html/Towertalk/1998-07/msg00706.html (10,455 bytes)
205. [TowerTalk] mismatch loss and SWR (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 22 Jul 1998 23:07:48 -0400; I'm sure Tom will answer, but I can't resist taking a stab at it: if the total system loss is 10%, 900 watts will be radiated by the antenna. The power really only flows in one direction, right? Of c; /archives//html/Towertalk/1998-07/msg00731.html (9,900 bytes)
206. [TowerTalk] Feed Line (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 23 Jul 1998 11:24:22 -0400; Let me know what you find. On my 72' tubular, I tried LMR400UF for the low loss, but it was way too stiff to properly coil up as the tower was lowered. I had a lot of problems keeping it from wanderi; /archives//html/Towertalk/1998-07/msg00758.html (9,457 bytes)
207. [TowerTalk] mounting barrel connectors on lightning bulkhead (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 23 Jul 1998 11:26:48 -0400; I've never found a better way to make a hole for an SO-239 than a chassis punch. I have a set but can't remember where I got it. I'm sure they're still made. Check with a big hardware outlet like Hom; /archives//html/Towertalk/1998-07/msg00759.html (10,076 bytes)
208. [TowerTalk] Antenna Comparisons (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 23 Jul 1998 11:17:57 -0400; I think the key here is that you were able to raise your vertical well over 1/2 wavelength on 15M. The discussions I've read here about elevated vs ground-mounted verticals indicate you really have t; /archives//html/Towertalk/1998-07/msg00760.html (10,959 bytes)
209. [TowerTalk] How Many Elements in a Yagi? (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Mon, 27 Jul 1998 02:44:36 -0400; Here's an odd question: Signals were booming in from ZL land tonight, so much so that 100 watts to my TH-7 with the crankup at 50 feet here in NH got a 20-over report from a ZL op. I didn't think it; /archives//html/Towertalk/1998-07/msg00880.html (9,575 bytes)
210. [TowerTalk] Disconnecting cables and lightning (questions -- (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 3 Jun 1998 11:43:10 -0400; I recommend that anyone interested in this subject get a copy of Polyphaser's "The Grounds for Lightning and EMP Protection". Of course, the case presented is self-serving, but there's a lot of good; /archives//html/Towertalk/1998-06/msg00092.html (14,531 bytes)
211. [TowerTalk] Ground resistance measurements (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 4 Jun 1998 20:25:19 -0400; Coincidentally with all this talk about lightning protection and ground systems, I recently bought a used ground resistance tester. It's a professional model, AEMC #136.100. It appears to be in good; /archives//html/Towertalk/1998-06/msg00167.html (8,998 bytes)
212. [TowerTalk] Measurring at the antenna feedpoint (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Mon, 8 Jun 1998 23:53:22 -0400; For what it's worth, I've had consistent problems with the RF-1 measuring at the feedpoint of the 40M verticals in my 4-square (each has a current balun, too.) It's always given me wierd and inconsis; /archives//html/Towertalk/1998-06/msg00251.html (11,760 bytes)
213. [TowerTalk] Crank-up Horror Stories... (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Tue, 9 Jun 1998 23:10:34 -0400; Sure, crankups can fail if not properly operated and maintained, and can cause serious injuries if safety precautions are not followed when working on them. But the same holds true for guyed towers.; /archives//html/Towertalk/1998-06/msg00287.html (12,032 bytes)
214. [TowerTalk] Crank-up Horror => crankup use model (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 10 Jun 1998 17:30:28 -0400; Mike: I have a U.S. Tower 70' base-rotated tubular (don't show the town a picture or they'll instist you put one up -- some people like the slender "mast-like" appearance.) Fully extended, the tower; /archives//html/Towertalk/1998-06/msg00321.html (10,416 bytes)
215. [TowerTalk] Crankup towers (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 10 Jun 1998 22:52:28 -0400; This is a multi-part message in MIME format. --=_NextPart_000_006A_01BD94C2.716124C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Most crankup towers are; /archives//html/Towertalk/1998-06/msg00330.html (11,875 bytes)
216. [TowerTalk] Peripheral ground system (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 11 Jun 1998 10:12:28 -0400; as Probably OK for Western Washington, but here in the frozen tundra of the Northeast, four feet deep is the standard for getting under the frost line. 73, Dick, WC1M -- FAQ on WWW: http://www.conte; /archives//html/Towertalk/1998-06/msg00335.html (8,905 bytes)
217. [TowerTalk] Guying crank up towers (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 11 Jun 1998 11:47:54 -0400; Hmmm. This is a little hard to visualize. If I slip a pipe into the top of the bottom section and lower the tower to allow the first movable section to come to rest on the pipe, I can see that the wi; /archives//html/Towertalk/1998-06/msg00347.html (11,537 bytes)
218. [TowerTalk] Peripheral ground system (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 11 Jun 1998 12:01:08 -0400; In New England, we get a phenomenon called "frost heaves". It happens when the ground freezes, melts, and refreezes in late winter. It causes the ground to heave and buckle, often as much as a foot o; /archives//html/Towertalk/1998-06/msg00348.html (12,200 bytes)
219. [TowerTalk] Vertical? (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 11 Jun 1998 14:23:35 -0400; Steve, Here's a copy of a message I sent to someone else on the GAP Titan. Hope this helps. 73, Dick, WC1M I've been using a GAP Titan for the past three years while planning my new "hidden" antenna; /archives//html/Towertalk/1998-06/msg00360.html (15,526 bytes)
220. [TowerTalk] Vertical? (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Thu, 11 Jun 1998 21:07:12 -0400; I don't think radials will help the Gap because it's a vertical dipole. 73, Dick, WC1M --Original Message-- From: Roger D. Johnson <n1rj@ime.net> To: UpTheTower@aol.com <UpTheTower@aol.com> Cc: tower; /archives//html/Towertalk/1998-06/msg00372.html (10,040 bytes)

Current List: 201 - 220
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]