Yes. That is correct. They have unreleased docs for 70%, but said that really I should take it down and rebuild it.
Regards, Chuck Hogg Shelby Broadband 502-722-9292 ch...@shelbybb.com http://www.shelbybb.com -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Data Technology Sent: Thursday, April 08, 2010 2:27 PM To: WISPA General List Subject: Re: [WISPA] OT: Rohn 25G Tower Help Chuck, I guess I should have read all of you post. I now see that you mentioned that you found the 120' requirement but were looking for engineering for closer spacing. Data Technology wrote: > All Rohn tower books I have had show 80% of vertical height for the > anchor post. On some towers/heights they go to 2 sets of anchor posts. > Even the brochure they have on their site still shows that, 120' for > 150' tall tower with 5 sets of guys. > http://www.rohnnet.com/resourcesmodule/download_resource/id/511/src/@ran dom48eced0c124b9/ > > > Chuck Hogg wrote: > >> Myself included, nobody wants to climb it. I'm just trying to see if >> there is any documentation that says this can be done. Obviously it was >> some idiot that put it up...which is why I'm trying to see if it can >> even be safely engineered with anchors at these positions. >> >> FWIW, I contacted Radian/Rohn. They said because of the new Rev G >> standard, they do not release any documentation for this type of >> application. At a minimum, it should be 70% of the height. >> >> Regards, >> Chuck Hogg >> Shelby Broadband >> 502-722-9292 >> ch...@shelbybb.com >> http://www.shelbybb.com >> >> >> -----Original Message----- >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> Behalf Of Blake Bowers >> Sent: Thursday, April 08, 2010 12:29 PM >> To: WISPA General List >> Subject: Re: [WISPA] OT: Rohn 25G Tower Help >> >> <<<< SHUDDER >>>> >> >> >> Don't take your organs to heaven, >> heaven knows we need them down here! >> Be an organ donor, sign your donor card today. >> >> ----- Original Message ----- >> From: "Chuck Hogg" <ch...@shelbybb.com> >> To: <motor...@afmug.com>; "WISPA General List" <wireless@wispa.org> >> Sent: Thursday, April 08, 2010 10:53 AM >> Subject: [WISPA] OT: Rohn 25G Tower Help >> >> >> >> >>> We purchased a WISP and are doing tower maintenance on one of their >>> towers. I was going to replace the guy wires, bolts, redo the anchors >>> (not a big fan of how it is done), install guy wire brackets, etc. >>> Essentially it is a complete overhaul of the tower. >>> >>> >>> >>> The tower is 150' Rohn 25G. The guy anchors are placed at 51', 51', >>> >>> >> and >> >> >>> 44' from the base (can't be any more because of the lot). Rohn used >>> >>> >> to >> >> >>> have a PDF document going over the requirements for anchors, guy >>> >>> >> wires, >> >> >>> etc. for different guy anchor positions. I cannot find this document, >>> and all I can find is the standard one with the standard 120' anchor >>> placement from the base. Do any of you have any recommendations or >>> documentation on how to figure out the correct materials to be used to >>> support this tower? Moving the guy anchor positions out is not an >>> option. >>> >>> >>> >>> Regards, >>> >>> Chuck Hogg >>> >>> Shelby Broadband >>> 502-722-9292 >>> ch...@shelbybb.com <mailto:ch...@shelbybb.com> >>> >>> http://www.shelbybb.com <http://www.shelbybb.com> >>> >>> >>> >>> >>> >>> >>> >>> >> ------------------------------------------------------------------------ >> -------- >> >> >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> >>> >>> >> ------------------------------------------------------------------------ >> -------- >> >> >>> WISPA Wireless List: wireless@wispa.org >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >>> >> >> ------------------------------------------------------------------------ >> -------- >> WISPA Wants You! 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