Honestly, I wasn't sure if DFS applies at all in North America and any bands beyond the UNII-II Extended. I need to do some checking.
So if DFS is a problem, and all other things being equal, it appears that the 5.8 GHz ISM/UNII-III is the best place to start with channel planning. Regards, Frank -----Original Message----- From: Chuck Enfield [mailto:[EMAIL PROTECTED] Sent: Monday, November 19, 2007 8:46 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] 802.11n tied to 802.3at The DFS requirement only applies to the 5.25-5.35 & 5.47-5.725 bands. That leaves (8) 802.11a channels or (4) 40MHz 802.11n channels exempt from the requirement. Frank, are you thinking of avoiding the DFS channels? Chuck -----Original Message----- From: Frank Bulk - iNAME [mailto:[EMAIL PROTECTED] Sent: Monday, November 19, 2007 7:49 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] 802.11n tied to 802.3at Do any of the bands have lesser/no DFS requirements? If so, those are will be more attractive. Frank -----Original Message----- From: Jon Freeman [mailto:[EMAIL PROTECTED] Sent: Monday, November 19, 2007 6:32 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] 802.11n tied to 802.3at The most used indoor bands will likely be the two lower bands (5.150-5.250 and 5.250-5.350 which have power in the 40mW and 200mW levels respectively), the two upper bands will likely be used more frequently outdoors (due to their higher upper power level limits of 1000mW and 800mW). There are other factors such as station supplicant/radio support for the added bands (newer devices should support all of them - but they're new so you should double check). Still, some of the upper bands might be used indoors in higher capacity applications. And who doesn't want more capacity? Jon -----Original Message----- From: Dale W. Carder [mailto:[EMAIL PROTECTED] Sent: Sunday, November 18, 2007 9:10 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] 802.11n tied to 802.3at On Nov 18, 2007, at 7:06 PM, Kevin Miller wrote: > One thing to note is that 300Mbps as a symbol rate is only possible > with 40MHz channels (versus the 20MHz standard width for 802.11a/b/ > g) .. which in 2.4GHz takes you from 3 non-overlapping to 1 non- > overlapping. In 5GHz you have at least 8 40MHz non-overlapping > channels. Likewise, does anyone have a feel for which bands within 5GHz will be commonly used indoors? Dale ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
