For ultra low-cost non-penetrating roof mounts, I've been playing around with J-Bars salvaged from discarded Dish TV equipment, mounted to a base made from scrap treated lumber and weighted down with cinderblocks. Then, I mate a vertical length of EMT conduit, 1/2" or better yet 3/4", using a couple conduit hangers.
http://goo.gl/ojvZu0 http://goo.gl/6Wu0My Maybe this can give you a general idea, although this would definitely have a conspicuous DIY look. (I just try to make these things in batch, to conserve on labor.) I should note the latter photo, which might be of the most interest to you, is now out of date. The wood beams making up the base were rearranged into a "V" shape for more width, with a metal brace spanning the mouth of the "V" for stiffness. Likewise the 24inch vertical mast was replaced with a completely straight section of EMT, instead of that weird zig-zag piece I originally happened to have lying around. On Tue, Jul 30, 2013 at 12:58 PM, Joshua Zukerman <[email protected]> wrote: > Hello list, > > I am setting up a PtP link between two gas stations for a client. I am > going to be using two Nanostation M5 units going about 1/2mi diagonally > across a highway. I'd like to mount them to a 5ft mast then to a > non-penetrating roof mount, as the only place with clear line-of-sight is > on the roof of both gas stations. Flat roof without much of a lip to mount > an antenna to. All of my Google searches come up with much larger > non-penetrating roof mounts, 3' or wider, which are designed for much > larger and taller masts. Also very pricey, $150 or more each. > > Does anyone make a small non-penetrating roof mount, say 2ft square out of > metal with an attachment to hold a 5ft mast or including a 5ft mast? Maybe > a single cinder/cement block to weigh it down would be all that is needed. > Won't ever need to go higher. > > Or do you have another suggestion for mounting? > > Thanks in advance, > > Josh > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless > > -- Ben West http://gowasabi.net [email protected] 314-246-9434
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