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References: [ +from:Rob.Frohne@wallawalla.edu: 21 ]

Total 21 documents matching your query.

1. Re: [TowerTalk] 45G tops (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Fri, 18 Apr 2008 20:21:25 -0700
Thanks Gentlemen: You have all convinced me. To a man, everyone says go with the flat top. One of my buddies at work, an ME with a lot of experience, said he was pretty sure there would be very littl
/archives//html/Towertalk/2008-04/msg00485.html (9,195 bytes)

2. [TowerTalk] How to deal with bad fitting Rohn 45 sections? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 20 Apr 2008 19:11:35 -0700
Hi Gentlemen: Thanks to Steve's good advice, I checked the alignment of the Rohn 45 sections I have and found that some sections are out of alignment by almost 1/4". Some of this tower was left over
/archives//html/Towertalk/2008-04/msg00513.html (7,336 bytes)

3. Re: [TowerTalk] LB Cebik - Bob Bogash (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 27 Apr 2008 09:04:24 -0700
Yes, and all the figures are missing on the web archive site, so it is almost useless. 73, Rob, KL7NA _______________________________________________ _______________________________________________ T
/archives//html/Towertalk/2008-04/msg00621.html (11,865 bytes)

4. [TowerTalk] Old style Rohn 45? (Square blocks to connect the sections?) (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Tue, 29 Apr 2008 21:27:34 -0700
Hi Gentlemen: I recently came across some "old Rohn 45" that has different mating on the legs, little square blocks with four bolts to hold the sections together. I have seen this on Rohn 65, but not
/archives//html/Towertalk/2008-04/msg00681.html (7,290 bytes)

5. Re: [TowerTalk] (no subject) (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Wed, 30 Apr 2008 10:22:28 -0700
Hi Ronnie, In general you expect the interference to be less with increasing height, but six meters isn't a whole lot, and funny things can happen. Possibly what happened is that your antennas are mo
/archives//html/Towertalk/2008-04/msg00688.html (8,957 bytes)

6. Re: [TowerTalk] "Array Of Light" (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Tue, 27 May 2008 15:23:38 -0700
Hi Bill, I would like to read his document as well, and I don't have it either. If I understand it right, I used to put up my four element quad this way. I would assemble the elements onto the boom w
/archives//html/Towertalk/2008-05/msg00480.html (9,126 bytes)

7. Re: [TowerTalk] HAM III x HAM IV and others (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Thu, 5 Jun 2008 05:36:22 -0700
Bill, et. al., I agree that the Ham series rotors will have problems with big antennas, however, if you are on a budget and you know about the modes of failure, you can make them work. Two of the rul
/archives//html/Towertalk/2008-06/msg00101.html (9,974 bytes)

8. Re: [TowerTalk] HAM III x HAM IV and others (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Thu, 5 Jun 2008 20:08:44 -0700
Hi Roger, et. al., When the wind really blows, I hold the brake down and let the antenna rotate by turning the motor to the direction it wishes to be. I then release the brake lever so the brake is r
/archives//html/Towertalk/2008-06/msg00116.html (9,092 bytes)

9. Re: [TowerTalk] Hindsight: Check your rotator bolts (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Fri, 6 Jun 2008 20:51:18 -0700
Hi Dick, I used aircraft bolts, after I had re-drilled and tapped the holes. The aircraft bolts have wires through them so that they won't turn. I'm not sure how Roger does it. He must have a T2X tha
/archives//html/Towertalk/2008-06/msg00135.html (15,500 bytes)

10. Re: [TowerTalk] Ham IV rotor - to service or not to service? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Mon, 27 Oct 2008 17:19:21 -0700
Hi Gary, I'm not the kind to send anything off to a service company, but there are some issues that can occur with Ham IV rotors. If you were the one using it the last 10 years, you will know that it
/archives//html/Towertalk/2008-10/msg00547.html (9,716 bytes)

11. [TowerTalk] Wanted: Rohn 25 WA, OR, ID, MT (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 14 Aug 2011 15:05:44 -0700
Hi, My friend Vernon near Polebridge, MT needs another 30-60 feet of Rohn 25. Anyone have any they are ready to part with? 73, Rob KL7NA -- Rob Frohne, Ph.D., P.E. E.F. Cross School of Engineering Wa
/archives//html/Towertalk/2011-08/msg00118.html (7,305 bytes)

12. [TowerTalk] What Kind of Roof Tower is This? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 23 Sep 2012 18:03:23 -0700
Hi All, I was donated a rooftop tower and KT-34XA Friday, and would like to know what kind of tower I have. It looks kind of like the Glen Martin towers, but not quite. It is aluminum, and could be m
/archives//html/Towertalk/2012-09/msg00385.html (7,396 bytes)

13. Re: [TowerTalk] What Kind of Roof Tower is This? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 23 Sep 2012 19:52:30 -0700
Hi All, I think Frosty, K5LBU, figured it out. He said it was a Create Designs roof mount tower. Here is a pdf <http://www.cd-corp.com/eng/twr/roof-twr_eng.pdf> of the catalog of that line. It looks
/archives//html/Towertalk/2012-09/msg00387.html (8,463 bytes)

14. [TowerTalk] Any Economical Options for a Ring Rotor? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Fri, 28 Sep 2012 11:53:55 -0700
Hi All, I have been gifted a KT-34XA and have thoughts of stacking it on my 100' of Rohn 45 that presently has a lonely 20 meter monobander on top. Are there any economical solutions for rotating it?
/archives//html/Towertalk/2012-09/msg00430.html (6,867 bytes)

15. [TowerTalk] Wanted: ring rotor (parts unit okay) (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Mon, 8 Oct 2012 19:18:51 -0700
Hi, I'm looking for a ring rotor for my Rohn 45G tower. A parts unit would be okay. I'm also considering building my own. 73, Rob KL7NA _______________________________________________ _______________
/archives//html/Towertalk/2012-10/msg00082.html (7,150 bytes)

16. [TowerTalk] AS455G rotor plate stuck in tower section.... (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 28 Oct 2012 13:26:09 -0700
Hi All, I am trying to move the AS455G I have up a couple of feet in my Rohn 45 tower to give me just that much more separation between my KT-34XA and a 4 element 17 meter monobander I want to mount
/archives//html/Towertalk/2012-10/msg00399.html (7,111 bytes)

17. Re: [TowerTalk] AS455G rotor plate stuck in tower section.... (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 28 Oct 2012 15:54:43 -0700
The crowbar worked. They make these so close a fit, they are just plain hard to put in or remove. 73, I am trying to move the AS455G I have up a couple of feet in my Rohn 45 tower to give me just tha
/archives//html/Towertalk/2012-10/msg00401.html (8,224 bytes)

18. [TowerTalk] Up to Date Instructions for MicroDEM and HFTA? (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Thu, 17 Jan 2013 19:03:06 +1000
Greetings, I'm on Guam, and would like to use HFTA at the location here, so I need to set up the terrain for here. Does anyone have any up to date instructions for using MicroDEM to make up the terra
/archives//html/Towertalk/2013-01/msg00209.html (7,126 bytes)

19. [TowerTalk] FS: Rohn 25 Fold Over Tower in Walla Walla, WA (score: 1)
Author: Rob Frohne <Rob.Frohne@wallawalla.edu>
Date: Wed, 7 Sep 2016 15:32:32 +0000
Hi All, I have a complete 68 foot Rohn fold over tower on the ground in Walla Walla, WA that is excess to my needs at the present. There are also a few other Rohn 25 things if anyone in this area is
/archives//html/Towertalk/2016-09/msg00169.html (7,009 bytes)

20. [TowerTalk] Prop Pitch Rotors (score: 1)
Author: Rob Frohne <rob.frohne@wallawalla.edu>
Date: Sun, 18 Jul 2021 23:08:51 -0700
Hi All, I'm cleaning out the shop of stuff from projects I'm not likely to complete.  I have two small prop pitch rotors I purchased long ago I was going to use to rotate some very large arrays, but
/archives//html/Towertalk/2021-07/msg00083.html (6,982 bytes)


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