Did a little arithmetic tonight...
I have a Tranzeo TR5plus access point on my wireless network. Other
than being limited by a 10meg ethernet port (it is installed at a noisy
FM tower location, and the speed must be turned down to 10meg to keep a
reliable connection) - it is a perfectly standard setup. It is hooked
up to a 16db H-pol 90 degree sector, and customer ranges are 1 mile to
26 miles. The majority of these customers are on a 1meg plan, with a
few 2meg and one 8meg in the mix.
This access point has 85 associations on it. Of those 85, two are
repeater sites. One has 35 additional customers on it, and the other
has 8. Add them all up, and this one AP is passing traffic for almost
130 customers. I see it peak around 6 meg sustained download (4 meg or
so sustained upload) and if I run a speed test at my house (which is one
of the customers off this access point) I can pull 8meg back to my NOC.
Anyone who says that 802.11a gear won't scale is full of it. I'd like
to see a Canopy based system that would even come close to delivering
that kind of performance. I'm planning to deploy 5ghz gear to as many
of my AP locations as possible this year. The money spent on that
access point is probably the best money I've spent on wireless gear
since I started my current WISP.
Matt Larsen
vistabeam.com
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