20 in our dense spaces, 40 where it can be done safely- about 50/50. Lee Badman (mobile)
On Nov 29, 2016, at 6:09 PM, Jason Cook <jason.c...@adelaide.edu.au<mailto:jason.c...@adelaide.edu.au>> wrote: It all comes down to requirements & design, if you can have 0 channel overlap while using 40Mhz then go for it... This is likely to be quite a challenge in multi-floor environments. Using tools like Ekahau Site Survey and Airmagnet survey will help design and verify these installs. We went from 20 to 40 a few years back, but move back to 20 by default early last year. We have a few 40Mhz locations where we can, we could probably do a lot more but unless we have time to design and test we leave things at 20. Here's come CWNE's talking about it https://vimeo.com/158370545 Starts 27:50 Though the rest of the video is pretty interesting too -- Jason Cook Technology Services The University of Adelaide, AUSTRALIA 5005 Ph : +61 8 8313 4800 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Trinklein, Jason R Sent: Wednesday, 30 November 2016 8:05 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] 5GHz Channel Width Hi All, I was just reading a blog article that heavily recommends not to use 40Mhz channel width in multi-floor environments, particularly where many 5GHz radios are used (particularly in our case with Xirrus multi-radio APs). Our campus presently uses 20MHz channel width in all buildings. We are testing and considering 40MHz width because of the bandwidth benefits for clients. What do you use on your campus? Have you found that setting a 40MHz channel width on your 5GHz radios has caused too much interference? Here is the article: http://divdyn.com/dual-5ghz-radio-aps/ Your thoughts are appreciated. -- Jason Trinklein Wireless Engineering Manager College of Charleston 81 St. Philip Street | Office 311D | Charleston, SC 29403 trinkle...@cofc.edu<mailto:trinkle...@cofc.edu> | (843) 300-8009 ********** 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/.
