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References: [ +from:olinger@bellsouth.net: 438 ]

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301. Re: Topband: HI-Z BACK IN BUSINESS (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 31 May 2012 16:53:32 -0400
They put that up during the day today. 73, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-05/msg00242.html (9,636 bytes)

302. Re: Topband: Detuning transmit antenna in receive (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sun, 17 Jun 2012 21:42:07 -0400
The easy way to do that is with a relay between the coax center conductor and the L wire at the feedpoint. When the relay is open, that makes the L a 1/4 wave on 160 which is not self-resonant. The q
/archives//html/Topband/2012-06/msg00152.html (11,063 bytes)

303. Topband: Summer Stew (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 18 Jun 2012 03:11:13 -0400
The QRN was "elsewhere" this summer, out in the US Midwest and in a big circle around KV4FZ, I think. So I was able to hear better than last year. F5IN called for my only European contact. He was sur
/archives//html/Topband/2012-06/msg00158.html (6,856 bytes)

304. Re: Topband: TX ANT TO RX ANT COUPLING (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 20 Jun 2012 17:04:51 -0400
If one's tower does not have radials, is set in concrete, with minimal direct contact with earth (say less than a linear foot, with nothing more than the usual lightning treatment attached to the bas
/archives//html/Topband/2012-06/msg00172.html (13,508 bytes)

305. Re: Topband: Chokes for Beverages (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 21 Jun 2012 11:47:09 -0400
I have recently replaced some "RG-6" in use for maybe seven or eight years. I opened it up to see what was happening. The degree of oxidation on the inside and outside of the foil was perplexing. One
/archives//html/Topband/2012-06/msg00180.html (9,370 bytes)

306. Re: Topband: Chokes for Beverages (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 21 Jun 2012 13:50:48 -0400
I said flooded a few sentences later. It appears that you (by inference) use flooded everywhere outdoors. I have gone over to flooded + PE jacket for all my RX cables for the last three years, includ
/archives//html/Topband/2012-06/msg00186.html (13,500 bytes)

307. Re: Topband: Reducing Noise in the Shack (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 21 Jun 2012 15:07:39 -0400
This is from the web page advertisement: -- Compare this with a Brand "C" filter which only handles common-mode interference problems. The NQN AC power-line filters are optimized for common-mode and
/archives//html/Topband/2012-06/msg00193.html (7,940 bytes)

308. Re: Topband: Reducing Noise in the Shack (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 21 Jun 2012 19:40:20 -0400
I'd take that question to the seller for an explanation. The filter may be intended to quiet a particular noisy device, like a PC. It only needs to be rated for the current drawn if it's on the custo
/archives//html/Topband/2012-06/msg00202.html (9,843 bytes)

309. Re: Topband: Lightning makes antennas vanish (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sun, 8 Jul 2012 10:45:04 -0400
I had an 80 half wave inverted L, up 67 out 70 feet, made of #12, strung with great difficulty between two tall trees, that really worked well. The vertical came down to my tractor shed from the west
/archives//html/Topband/2012-07/msg00103.html (10,779 bytes)

310. Re: Topband: Loss comparison between two antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sun, 8 Jul 2012 11:07:44 -0400
The losses in a 160 meter vertical antenna system are almost completely controlled by what you do for the antenna's counterpole (radials or counterpoise) and the electrical characteristics of the dir
/archives//html/Topband/2012-07/msg00109.html (9,451 bytes)

311. Re: Topband: Loss comparison between two antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 10 Jul 2012 12:15:49 -0400
Hi, Steve. It has taken some time to get to this and do it carefully. And sorry, some of the needed info WAS right there in your first post. Some days I just read right over tops of things and can't
/archives//html/Topband/2012-07/msg00128.html (16,163 bytes)

312. Re: Topband: DSL knocks out when on TopBand (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 17 Jul 2012 09:14:51 -0400
With AT&T Uverse I had the experience of adding common mode chokes (#31 ferrite) on a long run of cat 5 and having it knock down the desired signal. The cat 5 is not all that well balanced, and putti
/archives//html/Topband/2012-07/msg00221.html (9,517 bytes)

313. Re: Topband: DSL knocks out when on TopBand (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 17 Jul 2012 17:33:22 -0400
VDSL as used in AT&T Uverse and others employs a string of carriers from 147 kHz to 7.9 MHz every 13 khZ. Each of these is a data carrier for 1-13 data bits. In the extended handshaking between the r
/archives//html/Topband/2012-07/msg00226.html (17,222 bytes)

314. Re: Topband: Beverage strain auto-disconnects (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 20 Jul 2012 12:16:50 -0400
When you replace the blade connectors, first solder them in place and them wipe them all over with automotive silicone grease, leaving a thin layer, using a small stiff artist's brush. Then push them
/archives//html/Topband/2012-07/msg00240.html (9,942 bytes)

315. Re: Topband: Connector installation on flooded cable (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 20 Jul 2012 12:19:37 -0400
Bingo. Any difference in the GE stuff and the silicon grease found in auto stores? 73, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-07/msg00241.html (9,584 bytes)

316. Re: Topband: Beverage strain auto-disconnects (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 20 Jul 2012 14:40:31 -0400
Roger that, but not sure I want to use acetone on clothes if it etches plastic. Lot of cloth has synthetic thread blend in the fabric. Thanks for the tip. 73, Guy ____________________________________
/archives//html/Topband/2012-07/msg00247.html (9,768 bytes)

317. Re: Topband: WD1A (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 23 Jul 2012 15:40:28 -0400
That's what I would like to hear. Back some years got ahold of a sample of some alleged high power 72 ohm transmission line before I bought a bunch of it. It was 80 ohms and had terrible losses. It s
/archives//html/Topband/2012-07/msg00299.html (7,925 bytes)

318. Re: Topband: Beverage antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 23 Jul 2012 21:39:16 -0400
What may be more destructive is a slow velocity factor in the insulated wire. There is no way to estimate that, you just have to measure it. If the VF is low, then you get into the same kind of probl
/archives//html/Topband/2012-07/msg00313.html (10,552 bytes)

319. Re: Topband: Beverage antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 24 Jul 2012 03:53:46 -0400
I'm just thinking about the probably slow velocity factor of the stuff Jacques describes, the loss, and the poor performance it would give if used for a reversible beverage. The losses as a reversibl
/archives//html/Topband/2012-07/msg00317.html (13,659 bytes)

320. Re: Topband: Beverage antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 24 Jul 2012 09:38:26 -0400
Yeah, so he says when the wire is new. There is an ASSUMPTION that stuff retains characteristic at RF over time when it was only designed for audio. Have you ever noticed how pungent that stuff smell
/archives//html/Topband/2012-07/msg00320.html (9,924 bytes)

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