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141. Re: Topband: Barbed Wire Fence as Beverage? (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 3 Nov 2010 14:15:50 -0400
Short version: The trick is to turn the fence into a non-conductor at 160 meters to make it invisible to the beverage run above it. Long version: Strictly from a transmission line basis, the fence to
/archives//html/Topband/2010-11/msg00006.html (11,030 bytes)

142. Re: Topband: Elevated Radials (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 3 Nov 2010 16:53:42 -0400
I realize this is turning into a long article on the reflector, and overall is not really a response to an individual poster. But we are into yet another season and it's getting late for construction
/archives//html/Topband/2010-11/msg00007.html (20,714 bytes)

143. Re: Topband: I just want to vent (a little) (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 12 Nov 2010 10:25:35 -0500
The lack of a DX window seems to be taken care of by having people call "UP", does it not? Then it is up to the DX operator to spread it around a bit by not operating with a QRM-able or reliable QSX
/archives//html/Topband/2010-11/msg00057.html (11,087 bytes)

144. Re: Topband: 160 meter current-fed T antenna, where did I go wrong? (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 12 Nov 2010 11:54:08 -0500
Two long radials on the ground is only one step above using just an iron pipe in the ground. That should be common wisdom, like high dipoles do better than very low dipoles, but alas, is not. Try two
/archives//html/Topband/2010-11/msg00058.html (13,670 bytes)

145. Re: Topband: Inverted L (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 30 Nov 2010 03:05:08 -0500
Elevated radials are also part of the resonance equation. You did not mention how long the radials are and whether they are all the same length and evenly distributed. If they are short, then your re
/archives//html/Topband/2010-11/msg00126.html (9,795 bytes)

146. Re: Topband: antenna basics (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Dec 2010 07:50:51 -0500
If I had an up 125 out 125 wire out in the clear on 160m, I'd keep it. Questions would be how you were feeding it, did you have brick wall common mode block to keep the antenna from using the feedlin
/archives//html/Topband/2010-12/msg00002.html (9,917 bytes)

147. Re: [CQ-Contest] Topband: Stew Perry contest this weekend (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 16 Dec 2010 12:09:44 -0500
I don't think you've quite addressed the confusion. Should the first paragraph in 6. read: Prohibited activities: For single op in any category, use of internet-based and/or radio-based spotting syst
/archives//html/Topband/2010-12/msg00073.html (10,763 bytes)

148. Re: Topband: South Coast British Columbia 160M Beacon (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 5 Jan 2011 12:21:26 -0500
Don't be too quick to abandon the 3/8. bend (away from the ground) have 50 years of persistent anecdotal success in SKYWAVE QSO's that is NOT explained by the models, theory or popular talk. Hams are
/archives//html/Topband/2011-01/msg00010.html (12,126 bytes)

149. Re: Topband: Boring Report - December (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 7 Jan 2011 11:03:20 -0500
I find it very interesting to watch the reverse beacon network come up with Skimmer spots. http://www.reversebeacon.net/dxsd1/?f=3 It is interesting in that real signal reports are involved, signal-t
/archives//html/Topband/2011-01/msg00031.html (10,455 bytes)

150. Re: Topband: Inverted L Question (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 7 Jan 2011 13:18:30 -0500
Given that you have the 70-90 vertical rise as a given (not in play as maybe or maybe not), what the shape of your L will do to improve/worsen your signal will be overwhelmingly swamped (not close at
/archives//html/Topband/2011-01/msg00033.html (8,893 bytes)

151. Re: Topband: Russian Vacuum Variables on EBAY (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 10 Jan 2011 14:25:26 -0500
Bought two 1200 pf 4 kV for use on big 160 antennas out at N4AF, from QRO-stuff. No problems and have done the job out in remote box for seven or eight years now. Very stable. Quite large, drive shaf
/archives//html/Topband/2011-01/msg00048.html (8,347 bytes)

152. Re: Topband: "Grounds" for a Beverge (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 18 Jan 2011 09:46:08 -0500
Some grounds can be horrific. 500 ohms is horrific and atypical unless we are talking about sand or extremely dry material. BUT even a 500 ohm ground at the feed would be in series with a 450 ohm-ish
/archives//html/Topband/2011-01/msg00094.html (9,577 bytes)

153. Re: Topband: shunt fed tower (was: How to measure the resonance of a tower) (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 20 Jan 2011 13:46:36 -0500
You should probably have a conversation with SteppIR about being the top antenna on a tower that is being loaded on 160. I really don't know what they recommend. BUT, if you are QRO there are many kV
/archives//html/Topband/2011-01/msg00109.html (8,713 bytes)

154. Re: Topband: UNOCCUPIED BANDWIDTH (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 2 Feb 2011 13:17:33 -0500
Listening at 100 Hz bandwidth will often just find the space between two stations separated by 400-500 Hz. When you find a "hole" best to find its center and width by extending WIDTH control until yo
/archives//html/Topband/2011-02/msg00025.html (8,734 bytes)

155. Topband: Diversity in CQ 160 contest (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sat, 5 Feb 2011 13:05:31 -0500
I have pulled this thread from the Elecraft reflector as it has broad application and seems to particularly specific to the topband audience. The just past CQ 160 was my first 160 contest using diver
/archives//html/Topband/2011-02/msg00058.html (14,380 bytes)

156. Re: Topband: Musings of a DX-Window Intruder (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 7 Feb 2011 12:41:42 -0500
I have to vote with Herb. Further there will always be disadvantages to those without monster stations. There will always be advantages or disadvantages to various locations on the planet. One CANNOT
/archives//html/Topband/2011-02/msg00071.html (13,735 bytes)

157. Re: Topband: Inverted L Proximity to RX Antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 17 Feb 2011 00:03:51 -0500
If you model the RX antennas with the TX antennas in the model, and then without, you can see the change in RX pattern, usually with the loss of deep nulls. Some situations you can get extreme intera
/archives//html/Topband/2011-02/msg00149.html (8,443 bytes)

158. Re: Topband: Chat Room Confirmation (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 17 Feb 2011 12:05:13 -0500
I draw the line at claiming a contact when either did not actually get it over the air. I draw the line at using non-over-the-air to "fix" a log, whether contest or DXCC credit. It is clear that ther
/archives//html/Topband/2011-02/msg00155.html (10,499 bytes)

159. Re: Topband: Base Loaded Vertical vs. Asymmetrical Top Loading (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 17 Feb 2011 23:33:52 -0500
With 60 feet vertical, getting "pure" vertical polarization just won't make any difference. Always go for the efficiency. Many people have outstanding signals with inverted L's. And as always, worryi
/archives//html/Topband/2011-02/msg00161.html (8,458 bytes)

160. Re: Topband: Need EZNEC file for 1/4 wave 160 vertical with radial system (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 10 Mar 2011 12:06:05 -0500
This question is the same for actual antennas as it is for modeled antennas. The performance of a real world and modeled 160m vertical antenna is almost entirely determined by the nature of the radia
/archives//html/Topband/2011-03/msg00039.html (9,553 bytes)


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