The AP is a 5plus, with a 90 degree 16db H-pol sector.
I use the SL5 (16db) up to about 5 miles, 5a20 up to 10 miles, 5a24 8 to
18 miles and 5plus with 26db grid up to 25 miles.
Matt Larsen
vistabeam.com
Marlon K. Schafer wrote:
what antenna are you using at the ap?
what are you using for customers past 15 miles?
marlon
----- Original Message ----- From: "Matt Larsen - Lists"
<[EMAIL PROTECTED]>
To: <wireless@wispa.org>; <[EMAIL PROTECTED]>
Sent: Thursday, February 01, 2007 12:12 AM
Subject: [WISPA] Scalability of 802.11a based broadband equipment
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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