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141. [TowerTalk] Is the FCC sharp? Is ARRL counsel swift? (score: 1): Author: W4EF@dellroy.com (Mike); Date: Sun, 30 Dec 2001 23:06:05 -0800; The crux of our constitutional right to pursue happiness is best summed up in the idea that one mans fist can extend as far as another man's nose. The problem with towers is that everyone has a diffe; /archives//html/Towertalk/2001-12/msg00619.html (20,533 bytes)
142. [TowerTalk] Is the FCC sharp? CC&R's (score: 1): Author: W4EF@dellroy.com (Mike); Date: Mon, 31 Dec 2001 11:11:23 -0800; Since everyone keeps talking about hypothetical purple houses, I thought I would through in the story of a real purple house. When I was in high school one of my buddies lived on an 80 acre farm abou; /archives//html/Towertalk/2001-12/msg00638.html (10,303 bytes)
143. [TowerTalk] Is the FCC sharp? Is ARRL counsel swift? (score: 1): Author: W4EF@dellroy.com (Mike); Date: Mon, 31 Dec 2001 19:58:31 -0800; Seems to me that the question of erecting towers is really a property rights issue. Not really sure though how private property is protected under the U.S. Constitution. With a few noteable exception; /archives//html/Towertalk/2001-12/msg00652.html (11,214 bytes)
144. [TowerTalk] MFJ Noise Cancellor (score: 1): Author: W4EF@dellroy.com (Mike); Date: Wed, 14 Nov 2001 17:20:48 -0800; I was thinking of giving the MFJ 1025/1026 noise cancellor a try to see how it compares to my badly wounded JPS ANC-4. Are there any differences between the MFJ-1025 and the MFJ-1026 aside from the t; /archives//html/Towertalk/2001-11/msg00350.html (7,003 bytes)
145. [TowerTalk] Plans and drawings (score: 1): Author: W4EF@dellroy.com (Mike); Date: Mon, 26 Nov 2001 11:07:13 -0800; Pick-up a Rohn Catalog. They have detailed engineering drawings including base construction/dimensions, etc. Mike, W4EF.......... the The looking detailed http://www.anwireless.com List Sponsored by; /archives//html/Towertalk/2001-11/msg00522.html (11,080 bytes)
146. [TowerTalk] VHF/UHF antenna question (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 2 Oct 2001 08:33:28 -0700; Hi Paul, I did an internet search under "CATV Yagi" and found this company http://www.wade-antenna.com/slbam.htm These are the heavy duty yagis that you see at CATV headends. Looks like they make a l; /archives//html/Towertalk/2001-10/msg00028.html (8,843 bytes)
147. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Wed, 10 Oct 2001 18:11:26 -0700; Hey Tom, I don't think it is absolutely true that line loss is the only mechanism that can increase system bandwidth. If the reactance change of the mismatched line happens to work in opposition the; /archives//html/Towertalk/2001-10/msg00220.html (10,358 bytes)
148. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Wed, 10 Oct 2001 18:55:23 -0700; Hi Wes, What you say is true if the characteristic impedance of the line is equal to the system reference impedance (Zo). In other words, if your are changing the length of a 50 ohm feedline in a 50; /archives//html/Towertalk/2001-10/msg00225.html (14,219 bytes)
149. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 11 Oct 2001 07:32:53 -0700; Hey Tom, See my comments below: Yes, but only if you are measuring VSWR referenced against 75 ohms. If your are in a 50 ohm system, then the VSWR measured (relative to 50 ohms) will change as a funct; /archives//html/Towertalk/2001-10/msg00232.html (13,086 bytes)
150. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 11 Oct 2001 07:42:51 -0700; Hey Joe, Yes, I was guilty of jumping in without reading the whole thread. The matching technique you describe sounds similar to something I used to broadband a UHF dipole about 10 years ago. In my c; /archives//html/Towertalk/2001-10/msg00233.html (16,052 bytes)
151. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 11 Oct 2001 08:19:56 -0700; Hey Tom, See my comments below: Not if I am using the 75 ohm coax as a transformer in a 50 ohm system. All my meters are calibrated against Zo = 50 ohms, yet I have a pile of 75 ohm coax behind my ga; /archives//html/Towertalk/2001-10/msg00235.html (12,234 bytes)
152. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 11 Oct 2001 20:46:44 -0700; Hey Tom, I think we agree on about 99% of what has been discussed. Please see my comments below: Not sure what you mean by "across and through" vectors. Yes, in the case of the Force 12 Antenna with; /archives//html/Towertalk/2001-10/msg00246.html (13,091 bytes)
153. [TowerTalk] Re: Force12 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 11 Oct 2001 21:05:40 -0700; Hey Tom, One more try - see my comments below: Yes, I agree that the ratio of voltage maximum to voltage minimum on the 75 ohm line will still be 2.14:1, but that is not what my 50 ohm equipment is i; /archives//html/Towertalk/2001-10/msg00247.html (11,436 bytes)
154. [TowerTalk] Strength of rotating towers (score: 1): Author: W4EF@dellroy.com (Mike); Date: Tue, 30 Oct 2001 21:33:51 -0800; Great question, Chris! Wish I had the answer. In the past when I have posed questions related to torsional limits of tower sections, they seem to have fallen on deaf ears. Most of the familar design; /archives//html/Towertalk/2001-10/msg00561.html (12,114 bytes)
155. [TowerTalk] 4 Square question (score: 1): Author: W4EF@dellroy.com (Mike); Date: Wed, 31 Oct 2001 11:24:03 -0800; Bill, I don't think it matters much, but just to be safe you can make the 50 ohm pieces an integer mutiple of 1/2 wavelength at the operating frequency. This will ensure that the there is no impedanc; /archives//html/Towertalk/2001-10/msg00572.html (10,629 bytes)
156. [TowerTalk] What about hams with small lots??? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 1 Sep 2001 14:24:37 -0700; Hi Dave, I was looking over my logs from back in Florida the other night. I had forgotten just how much DX I was able to work with 100 watts and a 50' high "T" antenna fed against ground on 1/2 acre; /archives//html/Towertalk/2001-09/msg00032.html (13,762 bytes)
157. [TowerTalk] Weatherproofing for copper coils? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 1 Sep 2001 14:27:25 -0700; Hi Steve, You might consider building yourself a hi-q parallel resonant tank circuit that you can put in parallel with a dummy load. This will allow you try various coatings and compare for self heat; /archives//html/Towertalk/2001-09/msg00033.html (10,221 bytes)
158. [TowerTalk] True or Not True? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Mon, 3 Sep 2001 04:41:36 -0700; I think most of the NEC based programs calculate the current distribution along the length of the antenna's linear elements. The far field pattern of the antenna can then be derived by integrating th; /archives//html/Towertalk/2001-09/msg00087.html (14,184 bytes)
159. [TowerTalk] Amidon Type 31 Material?? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 22 Sep 2001 11:53:57 -0700; I recently ordered some type 77 beads from Amidon. Instead of sending me what I ordered, I received type 31 material. When I called CWS (e.g. Amidon), the girl I talked to said that type 77 material; /archives//html/Towertalk/2001-09/msg00599.html (7,381 bytes)
160. [TowerTalk] Connectors for LMR-400 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 30 Sep 2001 10:42:24 -0700; I have been using PL-259's successfully on LMR-400 until today. Normally when I thread the connector over the dressed end of the cable, the connector body "cuts" a thread in the outer jacket which ti; /archives//html/Towertalk/2001-09/msg00757.html (7,396 bytes)

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