September 2003
Intermediate to advanced
304 pages
8h 39m
English
Content preview from Wireless Hacks
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Cheap but Effective Roof Mounts
Install wireless gear on your flat roof without piercing it with mounting hardware.
If you intend to make a long distance wireless link, you will likely need to get your antennas up as high as they can comfortably go. For many people, adding a dedicated tower is out of the question (for aesthetic and local ordinance reasons), so the next logical place for gear is the rooftop.
Ideally, the equipment should be installed in such a way that it doesn’t pierce the roof of the building, lest the rainy season come and bring expensive roof repair bills with it. If you are working with a flat roof, you may find it useful to build a small “sled” on which to mount your gear. Figure 4-33 shows a typical plywood sled with a 24 dBi dish mounted on it.
Figure 4-33. A simple piece of plywood, raised with a couple of 2x4s and held down with cinder blocks.
It consists of a piece of plywood that is a few feet square around with sections of 2 × 4 screwed to it from above. This gets the wood slightly up and off of the roof’s surface to allow rainwater to flow past as it normally would. The sled is weighed down with cinder blocks, and has a cheap aluminum tripod mount (found at Radio Shack) bolted to it. Figure 4-34 shows a detail of the “experimental” equipment housing.
Figure 4-34. This ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.