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Total 35 documents matching your query.

1. [TowerTalk] Hygain HG-70HD (score: 1)
Author: "Marv Shelton" <marvs@att.net>
Date: Mon, 28 May 2012 16:30:19 -0700
I just purchased a used HG-70HD 70 ft. crankup tower by Hygain. My problem is that the manual I received online is not 100% identical to the tower that I have. Specifically, the base mounting is diff
/archives//html/Towertalk/2012-05/msg00335.html (7,730 bytes)

2. Re: [TowerTalk] Hygain HG-70HD (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Mon, 28 May 2012 21:06:34 -0700
Hmmmm Greg, To tell you the truth I don't know if it is truly a HyGain or not. I was told it was but the person I bought it from had it sitting in their yard for a few years so he could have been wro
/archives//html/Towertalk/2012-05/msg00350.html (9,976 bytes)

3. [TowerTalk] Replacing crank up tower cables (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 9 Oct 2012 05:37:38 -0700
I bought a used US Tower TX-472 and because the cables appear rusted, I have decided to replace them. I have purchased replacements from US Tower so the lengths are correct. the tower is on the groun
/archives//html/Towertalk/2012-10/msg00096.html (7,183 bytes)

4. Re: [TowerTalk] Contents of TowerTalk Digest, Vol 120, Issue 22 - TB3 hole pattern (score: 1)
Author: Marvin Shelton <marvs@att.net>
Date: Thu, 20 Dec 2012 09:26:40 -0800
Jerry, I'm no expert but since it's critical that the thrust bearing and rotor be 'plumb' to each other I would think you'd want to match drill the actual thrust bearing to the tower instead of using
/archives//html/Towertalk/2012-12/msg00101.html (8,286 bytes)

5. [TowerTalk] TRX-80HD antenna raising fixturee (score: 1)
Author: Marvin Shelton <marvs@att.net>
Date: Wed, 30 Jan 2013 06:06:57 -0800
I have an older US Tower TX-472 and I'd like to build a raising fixture for it similar to the TRX80HD. I don't believe that my base has the necessary attachment holes for the fixture so I'm going to
/archives//html/Towertalk/2013-01/msg00321.html (6,909 bytes)

6. Re: [TowerTalk] Attaching "flex" cable to crank-up standoffs (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 14 May 2013 05:09:59 -0700
So, what do you think is best? RG-213??? I think getting 5 years out of low loss coax is acceptable. I can help force at least that interval of mainten ance on one's amtennas. Best 73's de Marv WA2BF
/archives//html/Towertalk/2013-05/msg00168.html (9,054 bytes)

7. Re: [TowerTalk] Contents of TowerTalk Digest, Vol 140, Issue 47, Foundation Pad Removal (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 19 Aug 2014 03:36:45 -0700
I have a related question. Can I use an concrete existing base with a different set of anchor bolts? I would like to upgrade my T-base to one with tilt over attach points. Is it possible to remove a
/archives//html/Towertalk/2014-08/msg00329.html (7,144 bytes)

8. Re: [TowerTalk] TowerTalk Digest, Vol 140, Issue 57 (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Sat, 23 Aug 2014 13:40:00 -0700
DX Engineering sells replacement boom end caps. Another option. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contes
/archives//html/Towertalk/2014-08/msg00394.html (6,677 bytes)

9. [TowerTalk] Elements over or under (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Wed, 27 Aug 2014 20:48:52 -0700
Its probably already been asked and answered but what ia everyone's opinion on if the elements on a multi-band yagi should be installed hanging below or above the boom? What is any are the structural
/archives//html/Towertalk/2014-08/msg00506.html (7,335 bytes)

10. [TowerTalk] Placement of HF, UHF, and VHF antennas on one mast (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Thu, 18 Sep 2014 10:11:44 -0700
I'm about to complete my annual tower work and have added a few new antennas to the mast. I have done some reasearch but found conflicting information on how far apart to seperate antennas on one mas
/archives//html/Towertalk/2014-09/msg00256.html (7,228 bytes)

11. [TowerTalk] Anchor bolt material (score: 1)
Author: Marvin Shelton <marvs@att.net>
Date: Sun, 12 Oct 2014 08:37:25 -0700
Heres a question for everyone. Im installing a new T-base for my crank-up US Tower so that I can use the raising fixture and stop climbing it when its retracted. (getting too old for that) and Ive go
/archives//html/Towertalk/2014-10/msg00094.html (7,575 bytes)

12. Re: [TowerTalk] Anchor Bolt Material (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Mon, 13 Oct 2014 19:29:26 -0700
Anchor bolt update: Thanks for all the input everyone. It looks like epoxy, or at least commercial grade stuff dispensed with a caulking gun is out as a potential solution. It seems like the holes I
/archives//html/Towertalk/2014-10/msg00112.html (7,745 bytes)

13. Re: [TowerTalk] Anchor Bolt Material (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 14 Oct 2014 21:00:22 -0700
I asked a PE at work and since the holes are so much bigger than the bolt. ( the holes are 2.5" diameter, the bolts only 1.125") he said the rated strength of the epoxy is only good if the hole is no
/archives//html/Towertalk/2014-10/msg00142.html (9,558 bytes)

14. Re: [TowerTalk] Anchor Bolt Material (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 14 Oct 2014 22:09:38 -0700
the base is designed for 1-1/8 bolts. Sent from my iPad And YES it's cool! _______________________________________________ _______________________________________________ TowerTalk mailing list Tower
/archives//html/Towertalk/2014-10/msg00144.html (10,945 bytes)

15. Re: [TowerTalk] TowerTalk Digest, Vol 142, Issue 27 (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Wed, 15 Oct 2014 17:35:08 -0700
Message received guys, thanks. I am looking for a machine shop to neck down the threaded portion the entire lenght of the bolt. then I will have a bolt welded to the bottom of the anchor using the ol
/archives//html/Towertalk/2014-10/msg00163.html (8,643 bytes)

16. Re: [TowerTalk] Using old concrete in the new pour (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Wed, 22 Oct 2014 19:26:11 -0700
It's all about risk and liability these days. Tower manufacturers will "over engineer" the tower and foundation specs. because they don't want to be sued. If something goes wrong they can prove yhat
/archives//html/Towertalk/2014-10/msg00273.html (7,448 bytes)

17. [TowerTalk] WTB: US Tower TX-472 top section (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Sat, 27 Dec 2014 10:55:32 -0800
I thought I just might throw this out there because you never know do you? I am looking for the top section of a US Towet TX-472. US Tower will not sell me a single section, claiming that each is a c
/archives//html/Towertalk/2014-12/msg00379.html (7,261 bytes)

18. Re: [TowerTalk] Rotor control design (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Sun, 18 Jan 2015 15:50:05 -0800
I'm not sure why you have to write a whole new program. All it would seem you need to do is use one of the algorithms that calculates the beam heading based on the two gos coordinates, and send the r
/archives//html/Towertalk/2015-01/msg00296.html (7,386 bytes)

19. [TowerTalk] Hygain and US Tower bases compatible? (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Tue, 24 Feb 2015 18:43:40 -0800
Does anyone know if the US tower base for their TX-472 model will fit/ can be used with a HyGain HG70-HD? Marv WA2BFW _______________________________________________ _________________________________
/archives//html/Towertalk/2015-02/msg00461.html (7,359 bytes)

20. [TowerTalk] Coax cable comparison (score: 1)
Author: Marv Shelton <marvs@att.net>
Date: Thu, 6 Aug 2015 19:35:11 -0700
I remember reading a comparison of the different types of coax that talked about direct burial, injected jackets, etc. but I can't seem to find it. I thought it was from one of the contest university
/archives//html/Towertalk/2015-08/msg00097.html (6,797 bytes)


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