Remember, it's in Extricom's interest to demonstrate a scarcity of channels
(less channel choice = more co-channel interference) because they have a
coordinated RF approach.  

While the second-generation of 802.11n draft 2.0 chips from Atheros deals
with some of DFS challenges, I was led to believe that it's still not 100%
(that was from a vendor who doesn't have 802.11n gear today).  Even if one
has to momentarily ignore the 255 MHz in the middle, there's still 6
channels, more than enough to run a pilot where there's no 802.11a in
production today.

Attached is a channel map supplied to me by a vendor.  

Frank

-----Original Message-----
From: Zeller, Tom S [mailto:[EMAIL PROTECTED] 
Sent: Monday, November 19, 2007 1:17 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] 802.11n, DFS2, and channel assignment in the 5 GHZ
range

Interesting TechWorld article on an aspect of 802.11n rollout that I hadn't
seen discussed before.

http://tinyurl.com/2ebpd4

Tom Zeller
Indiana University

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Attachment: 40 MHz channels in 5 GHz.pdf
Description: Adobe PDF document

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