Where we’ve carefully located APs, matched Tx power and available rates to the AP layout, and use DFS channels we’ve had no trouble using 40Mhz channels. Were we have a legacy layout without optimized RF settings we’ve achieved better results with 20Mhz layouts. You’re probably only forced into 20MHz layouts if you can’t use DFS channels or you have an extremely high AP density, but when in doubt I recommend 20MHz channels.
Chuck Enfield Manager, Wireless Engineering Telecommunications & Networking Services The Pennsylvania State University 110H, USB2, UP, PA 16802 ph: 814.863.8715 fx: 814.865.3988 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Trinklein, Jason R Sent: Tuesday, November 29, 2016 4:35 PM To: [email protected] 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 <mailto:[email protected]> [email protected] | (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/.
