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Total 197 documents matching your query.

141. Re: [TowerTalk] Tower as a Vertical (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 11 May 2008 15:17:46 -0400
Also, you can climb it unguyed too. Try that with a commercially made MFJ Hytower! -- Original Message -- From: "larryjspammenot@teleport.com" <larryj@teleport.com> To: <towertalk@contesting.com> Sen
/archives//html/Towertalk/2008-05/msg00165.html (12,228 bytes)

142. Re: [TowerTalk] FIRST TOWER UP AND LOOKING GORGEOUS (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 10 Jun 2008 14:07:10 -0400
I would assume that temporary guys would be in order. Although my homebrew version of the Hygain Hytower is unguyed and I climb it all the time. It's made from 3 Rohn 24 sections and set in a yard of
/archives//html/Towertalk/2008-06/msg00228.html (11,679 bytes)

143. Re: [TowerTalk] 204CA Antenna Dimensions? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 24 Jun 2008 22:12:28 -0400
On page 11-25 in the 20th Edition Antenna Handbook(ARRRRRRGGL) it gives all the optimized dimensions of a 204BA. You can call me if you don't have that info available. I'll be up until 11:30 EDT 813-
/archives//html/Towertalk/2008-06/msg00516.html (8,549 bytes)

144. Re: [TowerTalk] 204CA Antenna Dimensions? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 24 Jun 2008 22:37:25 -0400
The 20th Ed agrees with the element spacings but the tip dimension are different, They are: R 56.0 DE 52.0 D1 61.5 D2 50.125 I put the optimized spacings and the above tip lengths in YO 7.1 and the p
/archives//html/Towertalk/2008-06/msg00521.html (9,655 bytes)

145. Re: [TowerTalk] Delta Loop compared to Dipole (actual experience) (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 24 Jun 2008 22:40:26 -0400
You also have to mention that you need to feed it 1/4 wave down from the apex for vertical polarization. Feeding it at the apex or in the middle of the base leg makes it horizontal, bad for low angle
/archives//html/Towertalk/2008-06/msg00522.html (12,212 bytes)

146. Re: [TowerTalk] Delta Loop compared to Dipole (actual experience) (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 25 Jun 2008 07:07:22 -0400
Actually, the delta loop is fed at one of the lowers by many because of convenience. When fed at that location, it is more of a oblique radiation polarization pattern rather than the preferred vertic
/archives//html/Towertalk/2008-06/msg00528.html (13,950 bytes)

147. Re: [TowerTalk] Delta Loop compared to Dipole (actual experience)(Richards) (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 25 Jun 2008 16:05:10 -0400
Get the apex up as far as possible, feed it in one of the corners, put at least 5KW into it and you'll be loud everywhere. Bob -- Original Message -- From: "Bill Axelrod" <bill@axelrods.org> To: "Ric
/archives//html/Towertalk/2008-06/msg00555.html (18,209 bytes)

148. Re: [TowerTalk] Delta Loop compared to Dipole (actualexperience)(Richards) (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 25 Jun 2008 16:23:21 -0400
Actually, if I had limited space or, as in my case, only allowed to put up one antenna(XYL), I would make a homebrew Hygain Hytower with at least 60 radials under it. The vertical will work on 20, 40
/archives//html/Towertalk/2008-06/msg00558.html (20,521 bytes)

149. Re: [TowerTalk] Delta Loop compared toDipole (actualexperience)(Richards) (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 26 Jun 2008 16:45:57 -0400
Richards, enough of this drivel. You're letting your newness to the hobby show. Instead of continuing this thread, why not go get your Extra and come down and work the real DX. Bob -- Original Messag
/archives//html/Towertalk/2008-06/msg00610.html (9,687 bytes)

150. Re: [TowerTalk] Rohn 25 Insulated Base (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 28 Jun 2008 21:52:27 -0400
Instead of trying to find a duplicate of what you have, why not use of those insulated pier pins like the broadcast stations use? I had one but sold it last year to a ham in the NE. I see that there
/archives//html/Towertalk/2008-06/msg00688.html (8,628 bytes)

151. Re: [TowerTalk] Aluminum tarnish removal (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 6 Jul 2008 20:50:14 -0400
Bronze wool works great. Also, they sell a pad that's green on one side and black on the other, kind of like a brillo pad but w/o the soap. Why worry about making the elements shiny? The last thing y
/archives//html/Towertalk/2008-07/msg00164.html (11,008 bytes)

152. Re: [TowerTalk] positive pull down for Tri-ex towers (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 10 Jul 2008 16:54:51 -0400
Most towers that were designed not to have positive pull down cannot be EASILY modified to have the pull down feature. It all comes down to the fact that the pull up cable has to wind in at the same
/archives//html/Towertalk/2008-07/msg00263.html (11,018 bytes)

153. Re: [TowerTalk] positive pull down for Tri-ex towers (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 10 Jul 2008 17:33:19 -0400
When I started reading your response I thought I was going to learn something then I realized that you could have done the same thing by just grabbing the bundle of coax lines and pulling down on the
/archives//html/Towertalk/2008-07/msg00267.html (11,532 bytes)

154. Re: [TowerTalk] How many cans of Prelube 6? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 16 Jul 2008 15:22:40 -0400
Why spray at all? Maybe if you live close to salt water but otherwise it's been my feeling that all that sticky s&%t just attracts airborne particles. 15 years for a set of galvanized aircraft wire r
/archives//html/Towertalk/2008-07/msg00420.html (10,062 bytes)

155. Re: [TowerTalk] Crimps vs Clamps on Wire Rope (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 16 Jul 2008 19:30:00 -0400
Not only are they smaller, they are STRONGER!!!!!!!!, anyone that uses the nut tightened cable clamps deserves whatever happens. There is no comparison between the strength and reliability of the Nic
/archives//html/Towertalk/2008-07/msg00429.html (11,313 bytes)

156. Re: [TowerTalk] Yagi Balun (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Fri, 18 Jul 2008 22:08:45 -0400
I do believe that the Telrex monoband yagis employed the use of a T match in the driven element. The impedance of a T match is not 50 ohms but 400 to 600 ohms. You would probably need a 9:1 Balun. A
/archives//html/Towertalk/2008-07/msg00498.html (8,665 bytes)

157. Re: [TowerTalk] Yagi Balun (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Fri, 18 Jul 2008 22:22:02 -0400
I just looked in an old ARRL Handbook and they say that you need a 1/2 wave of 50 ohm coax to match a T to 50 ohm coax. You have to take the VF of the cable being used for the balun. ________________
/archives//html/Towertalk/2008-07/msg00499.html (8,217 bytes)

158. Re: [TowerTalk] town ordanence (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 13 Aug 2008 16:13:16 -0400
You are not only a pessimist, a bad speller too. -- Original Message -- From: "Richards" <jruing@ameritech.net> To: "Martin Staffa" <geitaemort@sbcglobal.net> Cc: <TowerTalk@contesting.com> Sent: Wed
/archives//html/Towertalk/2008-08/msg00315.html (10,248 bytes)

159. Re: [TowerTalk] remote antenna switches? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 16 Aug 2008 10:23:14 -0400
IMHO, the W0MLY remote antenna switch is(was) the best you could buy. Since MLY died a few yrs back, I don't believe that anyone has been making it although I could be wrong. The unit uses a ceramic
/archives//html/Towertalk/2008-08/msg00370.html (9,153 bytes)

160. Re: [TowerTalk] ground radial length vs antenna height? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 27 Aug 2008 12:37:26 -0400
Gary, you really need to read an article written by Al Christman, K3LC. Just look him up on Google under his article name: Maximum Gain Radial Ground Systems for Vertical Antennas. It was originally
/archives//html/Towertalk/2008-08/msg00524.html (9,038 bytes)


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