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Total 435 documents matching your query.

141. Re: [TowerTalk] A SteppIR Performs So Well (score: 1)
Author: TexasRF@aol.com
Date: Fri, 18 Mar 2005 11:38:40 EST
Almost sounds like Kurt in World Radio Magazine/Aerials Column, doesn't it?! 73/k5gw In a message dated 3/18/2005 9:55:31 A.M. Central Standard Time, stevek@jmr.com writes: Sounds like my Gotham vert
/archives//html/Towertalk/2005-03/msg00551.html (8,811 bytes)

142. Re: [TowerTalk] Tower "Electrical Height"? (score: 1)
Author: TexasRF@aol.com
Date: Sat, 19 Mar 2005 16:19:03 EST
I need an education here... When the FCC gives the "Electrical Height" (in degrees) of a broadcast tower as 175.7 degrees, what does that mean? In this situation, I'm specifically talking about the (
/archives//html/Towertalk/2005-03/msg00643.html (8,563 bytes)

143. Re: [TowerTalk] re; Whiskers growing where you cannot shave them (score: 1)
Author: TexasRF@aol.com
Date: Sat, 2 Apr 2005 16:02:46 EST
Hi all, Another place this shows up occasionally is in high voltage door knob capacitors. This was pointed out by Bob Sutherland, W6PO, many years ago, and he called it silver migration. Wonder if th
/archives//html/Towertalk/2005-04/msg00059.html (8,190 bytes)

144. Re: [TowerTalk] When a Yagi Loses an Element (score: 1)
Author: TexasRF@aol.com
Date: Sun, 3 Apr 2005 11:50:50 EDT
Another approach to this problem is to rebalance the boom with dead weight to compensate for the missing element. If the element weighs 25 pounds and is 16ft from the boom center, then the correction
/archives//html/Towertalk/2005-04/msg00088.html (8,940 bytes)

145. Re: [TowerTalk] Previous Feb 74 HR magazine (score: 1)
Author: TexasRF@aol.com
Date: Sun, 24 Apr 2005 12:07:11 EDT
You are describing a series matching transformer matching. The formulas for this have been published in the ARRL Antenna Book for years. I have not looked at the most recent version so not sure it is
/archives//html/Towertalk/2005-04/msg00660.html (7,023 bytes)

146. Re: [TowerTalk] antenna impedance anomaly (score: 1)
Author: TexasRF@aol.com
Date: Fri, 27 May 2005 13:43:18 EDT
Not too long ago, when I asked why reflectors of a Yagi are longer than the driven element and directors of a Yagi are shorter than the driven element, several Towertalkians advised me to look at the
/archives//html/Towertalk/2005-05/msg00678.html (9,109 bytes)

147. Re: [TowerTalk] Rotator cable (score: 1)
Author: TexasRF@aol.com
Date: Thu, 2 Jun 2005 16:43:49 EDT
On 06/02/05 03:14 pm Phil Camera tossed the following ingredients into the ever-growing pot of cybersoup: the following. outside the window of the shack I ran regular multi conductor rotator cable (#
/archives//html/Towertalk/2005-06/msg00076.html (9,681 bytes)

148. Re: [TowerTalk] Interaction and loaded elements (score: 1)
Author: TexasRF@aol.com
Date: Thu, 30 Jun 2005 13:25:49 EDT
The likely thinking is that a full sized 40m antenna element also resonates on it's odd harmonic frequencies; third being at 15 meters. A loaded element is going to have different odd harmonic resona
/archives//html/Towertalk/2005-06/msg00726.html (10,546 bytes)

149. Re: [TowerTalk] Center on Pad of Rohn SSV (score: 1)
Author: TexasRF@aol.com
Date: Sat, 9 Jul 2005 12:01:33 EDT
If the pad is square (or round), then there could be a geometrical illusion since the center of the triangle will not correspond to the center of the square. For example, suppose the tower is 18" per
/archives//html/Towertalk/2005-07/msg00215.html (11,492 bytes)

150. Re: [TowerTalk] Center on Pad of Rohn SSV (score: 1)
Author: TexasRF@aol.com
Date: Sat, 9 Jul 2005 17:27:25 EDT
You are 100% correct, temporary brain fart!. The comment is only valid for square bases. 73/k5gw In a message dated 7/9/2005 1:48:52 P.M. Central Standard Time, n8de@thepoint.net writes: illusion <sn
/archives//html/Towertalk/2005-07/msg00229.html (8,498 bytes)

151. Re: [TowerTalk] Measuring electrical length of coax... (score: 1)
Author: TexasRF@aol.com
Date: Thu, 14 Jul 2005 11:55:10 EDT
Hello John, how do you test your lines and what equipment do you use? I've experimented with the MFJ 259B for stubs and phasing lines, but if it is critical, I'll order lines from M2. I'd sure like a
/archives//html/Towertalk/2005-07/msg00326.html (9,179 bytes)

152. Re: [TowerTalk] Anyone Familiar with Rohn 45 TiltOver? (score: 1)
Author: TexasRF@aol.com
Date: Tue, 16 Aug 2005 11:30:58 EDT
Beware the dead weight limitation of the Rohn Foldover towers: There are two versions; the most recent version is specified to handle a maximum of 135 pounds dead weight AT THE APEX. with a long mast
/archives//html/Towertalk/2005-08/msg00356.html (9,600 bytes)

153. Re: [TowerTalk] Source for 20' Mast (score: 1)
Author: TexasRF@aol.com
Date: Sat, 10 Sep 2005 17:09:49 EDT
It seems that nothing is a simple as it first appears; masts included. The structural steel commonly used for industrial applications is usually made of an alloy with a 40,000 psi yield strength. Whi
/archives//html/Towertalk/2005-09/msg00275.html (10,341 bytes)

154. Re: [TowerTalk] How to weather seal a Tailtwister rotor? (score: 1)
Author: TexasRF@aol.com
Date: Tue, 13 Sep 2005 21:17:38 EDT
Marshall, even if you were able to weather seal the rotator there is still the problem of moisture condensation inside the unit due to the heating/cooling cycle from day to night. The condensation wi
/archives//html/Towertalk/2005-09/msg00429.html (9,346 bytes)

155. Re: [TowerTalk] Antenna Switching - Complexity for its own sake? (score: 1)
Author: TexasRF@aol.com
Date: Fri, 23 Sep 2005 13:11:30 EDT
Welcome to the Kermudgeon club, Pete! Being a member allows unlimited complaining and gripping about such short comings. 73, Gerald/K5GW In a message dated 9/23/2005 11:07:30 A.M. Central Standard Ti
/archives//html/Towertalk/2005-09/msg00722.html (11,719 bytes)

156. Re: [TowerTalk] ICOM AH-2B (score: 1)
Author: TexasRF@aol.com
Date: Mon, 26 Sep 2005 12:46:37 EDT
It is basically a nice eight ft whip with a heavy duty base insulator. Many AH2b owners use a CB whip with good results. 73/k5gw In a message dated 9/26/2005 11:08:27 A.M. Central Standard Time, Cqte
/archives//html/Towertalk/2005-09/msg00799.html (7,682 bytes)

157. Re: [TowerTalk] WD40 (score: 1)
Author: TexasRF@aol.com
Date: Mon, 3 Oct 2005 16:13:33 EDT
It also works as charcoal lighter when you run out on a Sunday afternoon... 73, Stew K3ND __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com _____
/archives//html/Towertalk/2005-10/msg00088.html (8,637 bytes)

158. Re: [TowerTalk] Cable on a reel using a formula? (score: 1)
Author: TexasRF@aol.com
Date: Thu, 6 Oct 2005 15:34:44 EDT
Who said: pi are round; cornbread are squared? Circumference= pi times diameter. Length= circumference times number of turns. 73/k5gw In a message dated 10/6/2005 2:04:12 P.M. Central Standard Time,
/archives//html/Towertalk/2005-10/msg00204.html (11,389 bytes)

159. Re: [TowerTalk] CQ article error(?) (score: 1)
Author: TexasRF@aol.com
Date: Fri, 7 Oct 2005 13:59:43 EDT
Bill, do you mean a metallic conductor in addition to the normal third wire (neutral) for a total of four conductors between the transformer and panel? 73/k5gw In a message dated 10/7/2005 12:57:13 P
/archives//html/Towertalk/2005-10/msg00291.html (11,202 bytes)

160. Re: [TowerTalk] Concrete Fiber (score: 1)
Author: TexasRF@aol.com
Date: Mon, 17 Oct 2005 12:25:28 EDT
This sounds like a version on concrete mix sold around here called "Maximizer" I notice on the bag it claims to yield a somewhat higher volume of concrete per bag of mix. This higher volume comes at
/archives//html/Towertalk/2005-10/msg00613.html (10,555 bytes)


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