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Total 256 documents matching your query.

221. Re: Topband: Shunt Fed Tower SWR Troubles (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Thu, 27 Aug 2020 15:01:37 -0400
While air variables certainly do flash over, the effect is sudden, and has no "ramping up" effect. From Dale's original post: "The problem I having is that when transmitting the SWR goes up with powe
/archives//html/Topband/2020-08/msg00078.html (16,973 bytes)

222. Re: Topband: Shunt Fed Tower SWR Troubles (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Thu, 27 Aug 2020 21:29:53 -0400
I agree about the padding caps, good addition. I know of instances of both, fixed caps with insufficient current rating, and the balun insufficient for 160m blocking. If the caps were starting cold,
/archives//html/Topband/2020-08/msg00081.html (13,860 bytes)

223. Re: Topband: BOG Front to back (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Thu, 24 Sep 2020 19:13:22 -0400
Just to point out that there is NO one-size-fits-all PHYSICAL length for BOG best f/b. There is an ELECTRICAL length that far better defines it. And the electrical length of a fixed length of wire va
/archives//html/Topband/2020-09/msg00067.html (15,414 bytes)

224. Re: Topband: Good Conditions, Little Activity (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Fri, 9 Oct 2020 10:54:20 -0400
Is this threads subject material really just whining? Well, FT8 does some really good things that typical CW operation doesnt usually want to bother with. 1) use of a calling frequency (SSB carrier f
/archives//html/Topband/2020-10/msg00055.html (12,527 bytes)

225. Re: Topband: ARRL 160M and 1830-1835 change (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Fri, 23 Oct 2020 09:54:23 -0400
Im glad that rule is gone from the ARRL 160. THEORETICALLY that should have worked. What I observed year over year was that the ** DX ** didnt use it that much. Not altogether sure why. I suspect tha
/archives//html/Topband/2020-10/msg00156.html (10,446 bytes)

226. Re: Topband: Wednesday CW DX Activity Night (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Thu, 19 Nov 2020 12:14:39 -0500
I heard the 7Q7 call sign here in NC exactly once, of course at the tippy top of a long QSB cycle, which then immediately dove into the noise not to be heard again in the 30 minutes before I had to g
/archives//html/Topband/2020-11/msg00112.html (10,824 bytes)

227. Re: Topband: Cycle 25 predictions (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Tue, 1 Dec 2020 15:05:10 -0500
As a lifetime true-blue dyed-in-the-wool statistical wonk, this solar cycle presentation is the statistical equivalent of Jascha Heifitz playing the violin. We always have to wait and see how things
/archives//html/Topband/2020-12/msg00022.html (9,303 bytes)

228. Re: Topband: FW: CQWW a bust this year (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Tue, 1 Dec 2020 18:21:50 -0500
Hi Nick, I have a limited setup, only an inverted L over an FCP on 160 (not like W3LPL's 160m 4 square cannon). With basically no time to operate, I managed about 60 minutes in three spells on 160m,
/archives//html/Topband/2020-12/msg00031.html (10,537 bytes)

229. Re: Topband: I need help proofing an Inverted L model I made please. 40 x 143, four 100 radials, #14 wire. (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Fri, 11 Dec 2020 08:02:03 -0500
Over really good dirt there isnt too much difference. The other problem is that the NEC ground approximation coding usually underestimates loss. This is because the ground approximation in the model
/archives//html/Topband/2020-12/msg00118.html (16,488 bytes)

230. Re: Topband: Rogers dipole (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Wed, 16 Dec 2020 11:20:52 -0500
I dont at all doubt Rogers reports. The grind comes when others attempting Roger's successful methods report terrible results. There is clearly something going on not at all well understood. There ar
/archives//html/Topband/2020-12/msg00168.html (13,730 bytes)

231. Re: Topband: US1Q Stew (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Wed, 30 Dec 2020 23:32:11 -0500
Hi Jamie, That will be the contest sponsor's call, whose decision is final. Nor is the sponsor required to explain decisions of this nature. Any explanation would be the sponsor's choice. Nor do the
/archives//html/Topband/2020-12/msg00265.html (7,822 bytes)

232. Re: Topband: FCP Question (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Fri, 8 Jan 2021 13:41:47 -0500
Hi Rick, There is no problem modeling an FCP. You do have to do the parallel wires a certain way thats documented in EZNEC since 1997 (version 2). What do you perceive to be the issue? 73, Guy K2AV -
/archives//html/Topband/2021-01/msg00106.html (9,701 bytes)

233. Re: Topband: FCP Question (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Sat, 9 Jan 2021 06:22:29 -0500
Hi Rick, An answer to Rick and some number of others with inquiries off reflector.... Ill mount a downloadable .EZ file of a basic L over FCP on k2av.com sometime this week, along with some text, and
/archives//html/Topband/2021-01/msg00108.html (14,895 bytes)

234. Re: Topband: Antenna thoughts (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Tue, 2 Mar 2021 20:30:25 -0500
I would have to know just exactly how your "Ground R" was constructed to comment. The two EZNEC variables for ground description are dielectric constant and conductance. Also there is a lot depending
/archives//html/Topband/2021-03/msg00011.html (13,864 bytes)

235. Re: Topband: New Subject: 160M array feedline question (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Mon, 22 Mar 2021 23:55:10 -0400
A counterpoise is what we do when the full size of a double-ended antenna, dipole, OCF, etc is too large for us to build, maintain, etc. Very simply, we want to jam the energy from the shield of our
/archives//html/Topband/2021-03/msg00143.html (12,215 bytes)

236. Re: Topband: New Subject: 160M array feedline question (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Wed, 24 Mar 2021 22:57:21 -0400
Hi, Roger It sure seems like a lot of confusion arises when folks attempt concise electrical and mathematical thoughts and calculations using words with very broad and fuzzy definitions. Words like r
/archives//html/Topband/2021-03/msg00157.html (16,018 bytes)

237. Re: Topband: 160m CW Activity (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Sun, 4 Apr 2021 07:07:43 -0400
Was recently talking on 160 to one of my G3 acquaintances at his dawn. He was apparently hearing me quite nicely. I gave him an honest, accurate RST 289. Maybe closer to 189. In between rapidly recur
/archives//html/Topband/2021-04/msg00020.html (10,009 bytes)

238. Re: Topband: Hygain hytower on 160 (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Sat, 8 May 2021 10:57:15 -0400
I havent run a model on a hytower recently but helped one soul out of a quandary with one a while back. Items that required attention: 1) Coax connection SO239 at base and its mounting device metal,
/archives//html/Topband/2021-05/msg00025.html (9,783 bytes)

239. Re: Topband: Summer Stew Scores (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Sun, 11 Jul 2021 18:05:38 -0400
Thanks, Tree. Note that in the *summer* Stew this year, as of this post the high scorer is K1LT who was running LOW power. Ya just never know..... 73, Guy K2AV _________________ Searchable Archives:
/archives//html/Topband/2021-07/msg00005.html (6,958 bytes)

240. Re: Topband: NA activity + Inv-L corner insulator (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Sat, 25 Sep 2021 19:32:52 -0400
In the pulley snag conundrum, I found that the small marine grade stainless steel, ball bearing pulleys would handle the black sheathed 3/16 in parachute cord style rope and never a snag. They also p
/archives//html/Topband/2021-09/msg00075.html (8,726 bytes)


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