Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Fri, 12 Dec 2008 10:41:54 -0600
I installed 30' of Rohn 25G in the early 90's. It is self supporting with 3' of the base in concrete (3x3x3'). I had two Channel Master antennas on it. Now that I am into ham radio, I want to heighte
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Fri, 12 Dec 2008 12:53:04 -0600
Thanks for the input. To answer some of your questions. The windload of the antennas (HF beam & 2M/440 beam), rotor and mast should be 8 sq. ft. I will use a 87,000 psi steel mast 10' long with 6' ab
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Fri, 12 Dec 2008 12:55:19 -0600
Thanks Jim I can probably take my hydraulic driven post hole digger and dig some holes around the tower and then take the tractor and pull it plumb and then backfill the hole. How plumb does it need
Thanks I can't use a trencher due to obstacles in the way - propane tank, water well house, etc. I could use direct burial cable and just bury it a few inches deep but it would take me an extra 10' t
I was thinking that the top plate would act as a stabilizer to keep the tower from twisting, similar to a "star" assembly. You know, for guy attachment, you can just form a loop and drop it over a to
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Sat, 13 Dec 2008 14:16:26 -0600
Thanks for the response. Referring to my current leaning tower I have decided that I am better off starting from scratch v.s. trying to level the old one for several reasons. One, if I move it I can
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Sat, 13 Dec 2008 15:35:19 -0600
Thanks for the response. I live in north Texas about 70 miles north of Dallas. There is a strip of land from here to south of Dallas that is very unstable. We have clay and black gumbo that goes down
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Sat, 13 Dec 2008 15:37:55 -0600
Thanks Because my current tower is sunk directly in the concrete I don't have a steel base plate to shim. I will look into the nuts. 73 Donald> Date: Sat, 13 Dec 2008 13:34:20 -0800> From: jimlux@ear
But that *is* the whole idea of a guyed tower. If the guys fail, it comes down. It's true that typical tower sections are designed to take some amount of bending loads (after all, the wind load on t
Thanks for the comments Jim. I don't see a problem with making it better than Rohn suggests. I don't like the idea of just putting the tower base on a pivot point. Rohn has several bases to choose fr
Hi Unfortunately you would have to drill to a depth of 20' to reach stable soil (limestone). FYI, the frost line around here is typically less than 1'. I may be worrying about nothing. Possibly if th
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Sun, 21 Dec 2008 14:27:54 -0600
Hi I decided on a US Tower TX-455 for my tower. I am planning on installing a Hygain EXP-14 (or TH3MK4) and A3WS 12/17M beams. What is good spacing between the bottom beam and the tower top and betwe
Author: Donald Hofmann <electroubleshooter@hotmail.com>
Date: Thu, 15 Mar 2012 13:29:57 -0500
What do you think a used 100' Rohn SSV should sell for? It is 6N, 5N, 4N, 3WN and 2W sections and will be already taken down. 73 Donald W5DWH _______________________________________________ _________