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Total 61 documents matching your query.

1. [TowerTalk] Lightning suppression through coax loops (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 27 May 2010 08:09:22 -0400
I bought an Ameritron RCS-10 antenna switch at Dayton, and in reading the manual (please, no giggling) I note that it calls for a two-turn loop in each antenna coax line just before entering the rela
/archives//html/Towertalk/2010-05/msg00659.html (8,790 bytes)

2. Re: [TowerTalk] Dipole center connector (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Fri, 23 Jul 2021 10:37:55 -0400
Amen to this, though I've never felt the need to use split bolts.  However, I used one in one side of my Carolina Windom, which is under quite a lot of tension due to the weight of the balun and unun
/archives//html/Towertalk/2021-07/msg00102.html (8,862 bytes)

3. Re: [TowerTalk] Heliax question (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sat, 24 Jul 2021 22:45:17 -0400
I've heard, as a rule of thumb, that you can try cutting off one foot on each end for each year the coax was exposed to the elements, and see if you can get down to clean. 73, Pete N4ZR Check out the
/archives//html/Towertalk/2021-07/msg00117.html (8,342 bytes)

4. Re: [TowerTalk] Yaesu contol box? (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Fri, 6 Aug 2021 22:18:10 -0400
Indeed - I've been using them since 1995 and they have always been DC. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your
/archives//html/Towertalk/2021-08/msg00018.html (13,152 bytes)

5. [TowerTalk] Antennas was Re: TH-7 (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Fri, 3 Sep 2021 16:22:57 -0400
It's amazing what antennas hams take for granted these days (those who don't have to contend with HOAs).  That 4-stack was a big deal in the 80s. 50 years ago W3AFM wrote a seminal 2-part QST article
/archives//html/Towertalk/2021-09/msg00033.html (11,787 bytes)

6. Re: [TowerTalk] Phillystran suppliers (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Fri, 10 Sep 2021 13:57:32 -0400
I recall back maybe 20 years ago that PVRC members put together a group buy of fiberglas guy rod from the manufacturer.  Instead of risking used Phillystran, or paying $2.05 a foot from DXEngineering
/archives//html/Towertalk/2021-09/msg00115.html (13,443 bytes)

7. Re: [TowerTalk] Phillystran suppliers (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Fri, 10 Sep 2021 22:43:02 -0400
I was not suggesting that he use fiberglass rod instead, because I'm well aware of the problems people had with spontaneous deterioration.  My only point was to suggest he explore the possibility of
/archives//html/Towertalk/2021-09/msg00125.html (9,812 bytes)

8. Re: [TowerTalk] Phillystran suppliers (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sat, 11 Sep 2021 09:27:59 -0400
For the last time, I was not advocating Polygon rod. Of course, it is possible to incorrectly apply big-grips to Phillystran, and if you're building a couple of 160-foot towers it makes sense to spen
/archives//html/Towertalk/2021-09/msg00131.html (11,550 bytes)

9. [TowerTalk] Intermittent on Receive Only (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 16 Sep 2021 08:23:07 -0400
One of my antennas has a problem on receive, where the strength of signals will abruptly drop for a second or less and then spontaneously return to normal.  However, when I transmit on the antenna, i
/archives//html/Towertalk/2021-09/msg00140.html (7,052 bytes)

10. Re: [TowerTalk] Intermittent on Receive Only (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 16 Sep 2021 11:42:00 -0400
It's the latter, John - thanks. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 9/16/
/archives//html/Towertalk/2021-09/msg00144.html (8,240 bytes)

11. [TowerTalk] Antenna Testing via RBN (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 30 Sep 2021 10:22:43 -0400
I know that many Towertalkians are aware of using the RBN for antenna testing, but thought you might find my latest blog article at <reversebeacon.blogspot.com> interesting.  It addresses specificall
/archives//html/Towertalk/2021-09/msg00224.html (7,222 bytes)

12. Re: [TowerTalk] SP7GXP antennas? (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 21 Oct 2021 14:28:32 -0400
Anybody remember Gotham antennas from the 1950s?  Or all of the fanciful claims emanating from various mainstream antenna companies before Force 12 came on the scene and let in some much needed fresh
/archives//html/Towertalk/2021-10/msg00119.html (10,917 bytes)

13. Re: [TowerTalk] SP7GXP antennas? (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 21 Oct 2021 16:15:31 -0400
From another angle, I note that Remote Ham Radio and W2RE uses (used?) these antennas at the Eastport, Maine station.  An after-action report on how they performed and particularly how they stood up
/archives//html/Towertalk/2021-10/msg00124.html (13,026 bytes)

14. Re: [TowerTalk] SP7GXP antennas? (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 21 Oct 2021 22:46:31 -0400
Frankly I'm wondering more about the physdcal durability of the antennas, if they weigh (as some have said) only about 2/3 as much as the equivalent product from JK or Opti-beam.  Thinner-walled tubi
/archives//html/Towertalk/2021-10/msg00135.html (10,672 bytes)

15. [TowerTalk] 160M Antenna puzzlement (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sun, 19 Dec 2021 10:59:22 -0500
I may be suffering from a case of too much information, but I'm puzzled by my new 160-meter inverted L, about 60 feet vertical with 8 on the ground radials each about 65 feet long My old inverted L b
/archives//html/Towertalk/2021-12/msg00037.html (10,339 bytes)

16. Re: [TowerTalk] 160M Antenna puzzlement (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sun, 19 Dec 2021 11:42:14 -0500
I hope that's not the case, Mike.  There is already a two-toroid common mode choke between the coax and the antenna, wound with RG-400. 73, Pete N4ZR Check out the new Reverse Beacon Network web serv
/archives//html/Towertalk/2021-12/msg00043.html (10,761 bytes)

17. Re: [TowerTalk] 160M Antenna puzzlement (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sun, 19 Dec 2021 16:14:18 -0500
Thanks, everyone, for a lot of thought-provoking advice.  A couple of specific comments. At the base of the antenna I have 2 #31 cores each wound with 12 turns of RG-400, in series.  I think that may
/archives//html/Towertalk/2021-12/msg00051.html (12,630 bytes)

18. Re: [TowerTalk] 160M Antenna puzzlement (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Mon, 20 Dec 2021 10:21:31 -0500
Thanks, Rob, but I'm trying to keep things in some sort of proportion.  I'm currently redeploying my K9AY (which was down for the summer - yeah, I know it's overdue) and then I'll see about more radi
/archives//html/Towertalk/2021-12/msg00054.html (10,141 bytes)

19. [TowerTalk] Moving ham radio eflectors to permit attachments (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Tue, 21 Dec 2021 08:53:17 -0500
Since my earlier posting, I have learned that since February, 2021, groups.io has charged for groups larger than 100 members. While I think donations could easily cover these costs, and would be will
/archives//html/Towertalk/2021-12/msg00058.html (7,317 bytes)

20. Re: [TowerTalk] Moving ham radio eflectors to permit attachments (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Tue, 21 Dec 2021 15:14:48 -0500
$ 20/month for up to 500 members.  Additional members $0.44/member/year.  I have no idea what the total membership of towertalk is, but suspect it's a couple of thousand, which suggests another $700
/archives//html/Towertalk/2021-12/msg00065.html (11,517 bytes)


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