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References: [ +from:ranchorobbo@gmail.com: 286 ]

Total 286 documents matching your query.

221. Re: [TowerTalk] AM Broadcast Harmonic Interference to 75 Meters (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sun, 6 Dec 2020 07:15:40 -0600
Are there other AM properties in your area? When you receive, is it with any kind of preamp on an unturned antenna or something like a coax fed dipole straight to your receiver or transceiver? I had
/archives//html/Towertalk/2020-12/msg00016.html (7,823 bytes)

222. [TowerTalk] Dacron (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 8 Dec 2020 05:34:34 -0600
Don W7WLL posted this link about a year and a half ago https://www.eversoncordage.com/tarred-seine-twine and according to some, this stuff used by fishing operations is less expensive and stands up t
/archives//html/Towertalk/2020-12/msg00026.html (7,284 bytes)

223. [TowerTalk] outdoor junction shelters (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 20 Jan 2021 05:07:59 -0600
Interesting item I came across that looks as if it might help keep feedline splices and other junctions outside dry. https://www.amazon.com/dp/B089XVCC21 My experience has been the best way is to shi
/archives//html/Towertalk/2021-01/msg00086.html (6,785 bytes)

224. Re: [TowerTalk] outdoor junction shelters (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 20 Jan 2021 16:33:13 -0600
You'd be surprised what you can get away with below VHF. W0AIH's method probably worked fine on 10 m. and down. Not sure if he soldered or made a mechanical bond. I'd probably want to solder but I'd
/archives//html/Towertalk/2021-01/msg00095.html (8,795 bytes)

225. Re: [TowerTalk] PL-259 - reuse or replace (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 15 Feb 2021 09:36:49 -0600
Same here. I'll add that it seems like a lot of hams think Teflon dielectric represents a gold standard for UHF connectors. Amphenol uses Teflon in a limited number of their UHF jacks and maybe some
/archives//html/Towertalk/2021-02/msg00046.html (8,986 bytes)

226. [TowerTalk] PL-259 RF Coaxical Connectors (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 16 Feb 2021 16:05:59 -0600
Starting a few years ago I experienced an intermittent and sudden loss of signal into one or two of my receivers. Sometimes I'd be tuned to a vacant frequency and have band noise and hiss in the bac
/archives//html/Towertalk/2021-02/msg00075.html (8,888 bytes)

227. [TowerTalk] Wire Antenna Supports (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 16 Feb 2021 20:45:31 -0600
If I were you I'd consider a small lightweight tapering aluminum tower 40 feet high. For only holding a wire, it doesn't have to be in concrete and it is okay to guy it. It will give you rigidity and
/archives//html/Towertalk/2021-02/msg00091.html (7,766 bytes)

228. Re: [TowerTalk] Evaluating coaxial cable not from a dealer (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sun, 7 Mar 2021 06:13:48 -0600
Any good answer will depend on you telling us what coax you have in mind, and what you plan to do with it. 73 Rob K5UJ _______________________________________________ ________________________________
/archives//html/Towertalk/2021-03/msg00038.html (7,538 bytes)

229. Re: [TowerTalk] Wire (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 12 Mar 2021 05:42:10 -0600
I quit soldering wire splices outside years ago. All splices are now done with wire split bolts. I've had antenna and feedline splices with split bolts outside for years now and _never_ had a failur
/archives//html/Towertalk/2021-03/msg00113.html (7,665 bytes)

230. Re: [TowerTalk] Wire (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 13 Mar 2021 05:28:11 -0600
Agree. Yes, I sometimes effect a seal on the s/b to prevent water from freezing into it, but that's if the s/b is hanging horizontally. I recall finding mine at Home Depot and used them because they
/archives//html/Towertalk/2021-03/msg00127.html (9,217 bytes)

231. Re: [TowerTalk] HFT (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 18 Mar 2021 07:06:07 -0500
I'm 40 miles west of downtown Chicago. There are a bunch of HF trading sites out here. The Merc has a data center near Aurora IL. The HF sites are all linked to that via microwave. The yagis are all
/archives//html/Towertalk/2021-03/msg00240.html (8,891 bytes)

232. Re: [TowerTalk] Removing ground rods (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 31 Mar 2021 05:27:08 -0500
This method is what I use and it works FB. Keep in mind that once the rod is halfway out, it gets a lot easier and eventually you can pull it by hand. Only use copper clad rods. The galvanized ones d
/archives//html/Towertalk/2021-03/msg00344.html (8,742 bytes)

233. [TowerTalk] copper (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 1 Apr 2021 05:46:27 -0500
If you haven't been to the big box store lately to get copper wire get ready for sticker shock. 500 feet of #14 THHN solid at Lowes here is $53. Never seen it that high for plain old electric service
/archives//html/Towertalk/2021-04/msg00000.html (6,013 bytes)

234. Re: [TowerTalk] copper (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 2 Apr 2021 05:27:06 -0500
The reason for the cost is not the point. The fact is that copper is something hams and broadcasters need and use quite a bit and it's gotten expensive. I for one, will not be so fanatical about advi
/archives//html/Towertalk/2021-04/msg00009.html (10,615 bytes)

235. Re: [TowerTalk] copper (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 2 Apr 2021 05:46:15 -0500
That is certainly part of it. The price of hard drawn #14 bare hasn't gone crazy high (yet). Don't know about coax. I advise anyone with summer antenna plans to buy materials now. 73 Rob K5UJ ______
/archives//html/Towertalk/2021-04/msg00010.html (8,401 bytes)

236. [TowerTalk] OCFD: Should I be able to do better?12 (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 28 May 2021 06:55:34 -0500
I'm not Jim Brown, and I don't play him on TV, but I can tell you that for decades, there have been ham antenna manufacturers who have taken advantage of the wishful thinking of some hams along with
/archives//html/Towertalk/2021-05/msg00172.html (8,585 bytes)

237. Re: [TowerTalk] Dipole center connector (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 24 Jul 2021 15:25:35 -0500
https://forums.qrz.com/index.php?threads/a-rogues-gallery-of-panel-mount-uhf-jacks.735574/ Rob K5UJ _______________________________________________ _______________________________________________ To
/archives//html/Towertalk/2021-07/msg00112.html (8,391 bytes)

238. [TowerTalk] Decoupling feedlines from tower (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 8 Oct 2021 04:53:55 -0500
In the broadcast industry, AM towers have "isocouplers" made by Kintronic among others, when they have other service antennas on the radiator. As you alluded to, the idea is to not allow the feedline
/archives//html/Towertalk/2021-10/msg00045.html (7,414 bytes)

239. Re: [TowerTalk] 160M Antenna puzzlement (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 20 Dec 2021 04:41:29 -0600
You need way way way more radials, around 60 on ground at a minimum, and due to copper cost, keeping them at 40 or even 30 feet is better than a paltry 8 at 65+ feet. Your feed point resistance will
/archives//html/Towertalk/2021-12/msg00052.html (8,933 bytes)

240. [TowerTalk] Rapid-Deployment Beverage? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 24 Dec 2021 06:17:25 -0600
I'd use the extension dowels. I think you want to reduce possible signal loss to the steel posts as much as possible. Connect to the NE end. Get the most of the length. As I understand it, you need
/archives//html/Towertalk/2021-12/msg00118.html (9,168 bytes)

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