Bit of both, we see plenty of new devices 2.4 only. It's always the cheap 
stuff. Apple is pretty popular though so at least on that side we know we get 
5ghz

The Edimax Nano USB seems a good choice for laptops, 5ghz only but the inbuilt 
will take care of 2.4 and the device is small enough to be plugged in 
permanently. Going to trial a coupel but they are only $20 here in AU so even 
students can afford an upgrade. We've proven to a few people the difference by 
using the large Edimax AC1200, those are great but too big. Antenna strength 
may be interesting on the Nano.

Does anyone have a website up to educate students/staff on BYOD purchasing? We 
used to but it was removed (another story) and I'm keen to get it going again. 
The problem is that most people won't see it before purchasing, but at least 
it's a point of reference. 


-----Original Message-----
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Gogan, James Patrick
Sent: Tuesday, 12 April 2016 9:38 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Turning off 2.4 on a select SSID?

I'm unfortunately seeing that we may actually start to experience an INCREASE 
in 2.4GHz-only devices ..... when we asked about this on campus recently, I 
received this reply ... and this is from a central IT person:

" I wanted to point out that many brand new phones don't speak 5GHz such as the 
Motorola Moto G (3rd generation) which just began shipping late last summer.  
In fact, none of the generations of Moto G have a 5GHz radio.  Motorola has 
reserved 5GHz wifi for the Moto X which is their premium spec phone.    The 
Moto G is a pretty common phone - I know of several folks (in our department) 
that have such including myself and a coworker who just bought a brand new one 
Friday.  Republic Wireless sells a ton of these.  The Moto E, which is the base 
model, also doesn't speak 5GHz.  Several folks in our building also have that 
phone."

Don't know whether to blame Motorola or folks that go for the cheapest stuff 
possible.

-- Jim Gogan / Univ of North Carolina at Chapel Hill

-----Original Message-----
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Earl Barfield
Sent: Monday, April 11, 2016 4:07 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Turning off 2.4 on a select SSID?

> On 04/07/2016 09:24 AM, Hector J Rios wrote:
>>
>> I guess this brings up another good question, and that is, what is 
>> the percentage of 5GHz vs 2.4GHz you all see in your institutions?
>> For us is still 50-50. And it’s been like that for a while. I still 
>> see new laptops that only come with 2.4GHz adapters.
>>


While it can be useful to track what percentage of connections use 5GHz radios, 
we've found that a better question to ask is "What percentage of 5GHz-capable 
clients are actually connecting at 5GHz".

In our environment, it varies wildly by building: some as high as 95% of 
sessions and others, such as our outdoor spaces, down close to zero.

We focus our resources on improving the 5GHz coverage in the buildings with the 
lower percentages.

All this data is in the Airwave Management Platform database.   It just
takes a little gentle coaxing to get it out.

In our high density spaces, we have many many APs on 5GHz with directional 
antennas, along with turning of lower data rates and
raising RxSOP to limit the cell size.   We turn off 2.4GHz
radios on all but a few APs in the room,   From the user side, this
should look about like APs with multiple 5GHz radios.

We're using Cisco AP3702Es right now but we're anxious to take a look at the 
upcoming AP3802Es that should allow us to use fewer APs to but the same number 
of 5GHz antennas serving a room.



--
Earl Barfield -- Academic & Research Tech / Information Technology Georgia 
Institute of Technology, Atlanta Georgia, 30332
Internet: earl.barfi...@oit.gatech.edu    e...@gatech.edu

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