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161. [TowerTalk] Front to Back Measurements (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Thu, 13 Dec 2001 11:06:05 -0500; The step attenuator on my MP is 6db. Nice if you think of S units in 6 db steps. It's also rather accurate (checked it). It also shows rather quickly that the steps below "S9" are non linear, and "wo; /archives//html/Towertalk/2001-12/msg00323.html (18,905 bytes)
162. [TowerTalk] Hink and Kinks (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Tue, 18 Dec 2001 09:44:45 -0500; We also have rotator controllers that "ramp up" and "ramp down" the torque, for the same set of reasons. M2's controller for a prop pitch rotator is such a beast. 73, Guy thing http://www.anwireless.; /archives//html/Towertalk/2001-12/msg00409.html (10,974 bytes)
163. [TowerTalk] 9913 Reliability (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Fri, 21 Dec 2001 00:16:40 -0500; There is FAR less open air space between the outer jacket, shield and dielectric of 213 than in the center space of 9913. The temp change on 9913 will create quite a vacuum. 213 will not create a vac; /archives//html/Towertalk/2001-12/msg00477.html (11,375 bytes)
164. [TowerTalk] AOL 7.0 (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Sun, 30 Dec 2001 13:24:46 -0500; If it was a *sending* setting that Bert needs to fix, then everyone would see it. So the problem must be a setting or program issue at your end. Nice to know that apparently AOL users can send plain; /archives//html/Towertalk/2001-12/msg00605.html (8,254 bytes)
165. [TowerTalk] 40m 4square - factors relating to gain (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Mon, 12 Nov 2001 09:49:34 -0500; If you are comparing a 4 SQ with a good dipole (say up 50/60 feet) in the dipole's broadside direction, you probably won't get an impression of a huge difference in gain. You will be aware of being a; /archives//html/Towertalk/2001-11/msg00267.html (10,894 bytes)
166. [TowerTalk] vertical antennas math & 1/2 waves (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Fri, 16 Nov 2001 00:03:46 -0500; THREE reasons for a ground screen underneath a vertically oriented antenna. 1) to give a high conductivity path for a current sink in case you are feeding the vertical portion at the bottom against g; /archives//html/Towertalk/2001-11/msg00372.html (13,244 bytes)
167. [TowerTalk] MFJ ARTIFICIAL GROUND (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Tue, 20 Nov 2001 10:51:14 -0500; There's a bit of a semantic problem here, but the radiational characteristics of that short whip do not change. You may vary how much loss you have due to the placement of tuning elements, but it is; /archives//html/Towertalk/2001-11/msg00432.html (11,400 bytes)
168. [TowerTalk] Ant proximity (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Tue, 27 Nov 2001 21:38:39 -0500; One simple way of looking at the seeming greater independence of VHF is to take scaling into account. A 420 yagi with a two foot separation from a two meter yagi is roughly the same thing as twenty f; /archives//html/Towertalk/2001-11/msg00545.html (9,004 bytes)
169. [TowerTalk] Force12 (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Wed, 3 Oct 2001 10:34:40 -0400; Ah, SWR. But then again, what else except SWR. Then there's SWR. How could anything else but SWR matter, after all, it's SWR. SWR trumps performance. SWR trumps efficiency SWR trumps price. ... How c; /archives//html/Towertalk/2001-10/msg00060.html (11,035 bytes)
170. [TowerTalk] Mosley CL-33 (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Mon, 8 Oct 2001 22:35:53 -0400; While you might get into a conversation about why Mosley at all, or why traps at all with newer antennas from any number of manufacturers that either eliminate traps or minimize them, I will stay awa; /archives//html/Towertalk/2001-10/msg00186.html (12,584 bytes)
171. [TowerTalk] Trauma as a teacher (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Sat, 13 Oct 2001 00:12:51 -0400; This is too easy... -- Guy Olinger, K2AV Apex, NC, USA us We have never done much until we got our models to where they predicted what DID happen. A good model is a law of nature that has finally got; /archives//html/Towertalk/2001-10/msg00271.html (9,547 bytes)
172. [TowerTalk] Beverage f/b (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Sun, 21 Oct 2001 14:36:12 -0400; Ground being dry or wet underneath has a lot to do with it. Also the acidity of rotting leaves leaching into the ground surface changes its characteristics. This is a seasonal boost that wears away t; /archives//html/Towertalk/2001-10/msg00411.html (9,665 bytes)
173. [TowerTalk] vertical antennas (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Tue, 23 Oct 2001 21:36:17 -0400; There are THREE issues that are improved with ground radials, NOT just one. 1. Reduce ground resistance as a series resistance loss at the feedpoint. Since a shortened radiator has a lower radiation; /archives//html/Towertalk/2001-10/msg00483.html (14,668 bytes)
174. [TowerTalk] vertical antennas (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Wed, 24 Oct 2001 10:14:11 -0400; See interspersed. 73, Guy -- elevated Same problem as with a triband beam. Though if the elevation is 8 feet for a shortened 160 meter vertical, not sure that is % wise enough to worry about. If it's; /archives//html/Towertalk/2001-10/msg00490.html (11,999 bytes)
175. [TowerTalk] What about hams with small lots??? (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Sat, 1 Sep 2001 22:46:04 -0400; There is more to the end-fed wire: I'm personally talking about a 133' wire, that goes up 60-70 feet, and then out for the rest. On 160 you feed it direct. As many radials as you can get away with. (; /archives//html/Towertalk/2001-09/msg00041.html (14,622 bytes)
176. [TowerTalk] Inv L's and 4 square (score: 1): Author: k2av@contesting.com (Guy Olinger); Date: Wed, 5 Sep 2001 14:02:41 -0700 (PDT); Definitely one of those things you model to see what it does. Guarantee that there will be at least one non-intuitive outcome of what you proprose. 73, Guy == 73 & GL -- Guy Olinger, K2AV k2av@contes; /archives//html/Towertalk/2001-09/msg00186.html (8,870 bytes)
177. [TowerTalk] True Or Not True #2 (score: 1): Author: k2av@contesting.com (Guy Olinger); Date: Thu, 6 Sep 2001 11:56:06 -0700 (PDT); In marginal conditions, such as daytime on the lower bands, or at the edges of a skip zone, etc, where the signal is at or in the noise, adding 2 db to your signal is helpful. For certain digital mod; /archives//html/Towertalk/2001-09/msg00225.html (11,185 bytes)
178. [TowerTalk] True Or Not True #2 (score: 1): Author: k2av@contesting.com (Guy Olinger); Date: Thu, 6 Sep 2001 12:18:56 -0700 (PDT); The definition of db is 10 log (powerA/powerB) and has NOTHING TO DO with human perception. (Where DID that old wive's tale come from...) The landmark Bell Laboratories study on how well average peop; /archives//html/Towertalk/2001-09/msg00226.html (12,602 bytes)
179. [TowerTalk] True Or Not True #2 (score: 1): Author: k2av@contesting.com (Guy Olinger); Date: Thu, 6 Sep 2001 12:36:53 -0700 (PDT); Maybe another way to put that: in a 48 hour contest, you can bet some significant number of contacts will individually qualify as marginal conditions (as in QRP & indoor antennas), and the 2 db will; /archives//html/Towertalk/2001-09/msg00228.html (11,195 bytes)
180. [TowerTalk] killing one band of triander? (score: 1): Author: k2av@contesting.com (Guy Olinger, K2AV); Date: Sat, 4 Aug 2001 15:17:41 -0400; Removing the inner traps removes the 10 meter functionality as a driven element. After that the element inside the remaining traps would have to be extended until 15 meters was resonant again. What t; /archives//html/Towertalk/2001-08/msg00061.html (9,417 bytes)

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