The four-channel plan made sense when AP density was lower and before OFDM (back when spectral density graphs had long tails.) I'm not sure if it was every really better than a 3-channel plan, but there was a case for it. Even if it was better for 802.11b, 802.11g and the iPhone made it obsolete.
From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]> On Behalf Of Seth Bean Sent: Wednesday, August 26, 2020 12:25 PM To: [email protected] Subject: Re: [WIRELESS-LAN] [EXT] Re: [WIRELESS-LAN] 2.4Ghz channel designations I briefly tried the 4 channel (1,4,7,11) plan and it was awful. I have found shutting off the 2.4 radio in dense environments works in a 3 channel plan. Seth Bean Administrator of Networks and Telecommunications MCLA APA Chapter President Massachusetts College of Liberal Arts 413.662.5022 413.663.1276 375 Church Street North Adams, MA 01247 "National Top Ten Public Liberal Arts College" 2019 US News & World Report MCLA ________________________________ From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> on behalf of SWARTZ, POLA <[email protected]<mailto:[email protected]>> Sent: Wednesday, August 26, 2020 12:18:24 PM To: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Subject: Re: [WIRELESS-LAN] [EXT] Re: [WIRELESS-LAN] 2.4Ghz channel designations CAUTION: This email originated from outside of MCLA. Do not click links or open attachments unless you recognize the sender and know the content is safe. 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Integrity . Equity. Collaboration. Accountability . Fun Never out smart your common sense... ________________________________ From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> on behalf of Brady J. Ballstadt <[email protected]<mailto:[email protected]>> Sent: Wednesday, August 26, 2020 10:15 AM To: [email protected]<mailto:[email protected]> Subject: [EXT] Re: [WIRELESS-LAN] 2.4Ghz channel designations Find a new consultant. Brady Ballstadt From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> on behalf of John Rodkey <[email protected]<mailto:[email protected]>> Reply-To: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> Date: Wednesday, August 26, 2020 at 11:13 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [WIRELESS-LAN] 2.4Ghz channel designations For many years I have consistently used channels 1, 6, and 11 as non-overlapping channels wherever 2.4Ghz is deployed. I have a consultant who is suggesting using all 11 channels in our high density dorm situations, arguing that signal interference will affect throughput less than the delays from protocols where the 3 channels are within hearing distance of each other. This doesn't make sense to me. If you in your situation have found using all 11 channels to be an effective solution vs the 3 channel non-overlapping approach, could you explain to me why you made that choice, and what your on-the-ground experience is with this configuration? Thank you! John Rodkey Director of Servers and Networks Westmont College Verification: Unsure if this is a legitimate email to an email list? Make sure it is recorded at https://my.westmont.edu/it_emails<https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmy.westmont.edu%2Fit_emails&data=02%7C01%7Ccae104%40PSU.EDU%7C4214df4d0a4e41784bdb08d849dc96b7%7C7cf48d453ddb4389a9c1c115526eb52e%7C0%7C0%7C637340559064882127&sdata=JnbinroNNee3MqczGG1ZbG%2B5sKUB4ZE8Nvxl4aA%2Bhjc%3D&reserved=0> "God-fearing faith... is neither brash nor foolhardy and does not tempt God." - Martin Luther ********** Replies to EDUCAUSE Community Group emails are sent to the entire community list. 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