Re: [WIRELESS-LAN] 802.11n antenna

[fred]

Nathan,
I am using one now connected to a Cisco 1252. It works just OK. This was 
the highest gain I could find in an outdoor MIMO antenna. I have a 
challenging application where the distance is several hundred feet 
shooting down from a tall building into a ground level coffee shop.  
Over a shorter distance with fewer obstructions, the Terrawave unit 
should work well enough.  We are also testing an Aerohive mesh along the 
same path but we were able to put one mesh AP inside the coffee shop. 
That setup uses a much higher gain(non MIMO) antenna for the backhaul to 
the mesh AP. We are early in the test but it looks promising.

Thanks,
Fred

Nathan Hay wrote:

Is anyone use the 802.11n MIMO antennas from TerraWave?
 
http://www.terrawaveonline.com
 
I'm particularly interested in the outdoor patch antenna and the 
outdoor omni antenna that has 6 leads for the 6 antennas inside of them.
 
The application is outdoor 802.11n coverage.  If you are doing 802.11n 
outdoors, but with another product, I'd be interested in hearing about it.
 
We have Meru wireless on our campus.
 
Nathan
 
 
 
 
 
 
Nathan P. Hay

Network Engineer
Computer Services
Cedarville University
www.cedarville.edu  ** 
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/.

<>

802.11n antenna

[Nathan Hay]

Is anyone use the 802.11n MIMO antennas from TerraWave?
 
http://www.terrawaveonline.com
 
I'm particularly interested in the outdoor patch antenna and the outdoor omni 
antenna that has 6 leads for the 6 antennas inside of them.
 
The application is outdoor 802.11n coverage.  If you are doing 802.11n 
outdoors, but with another product, I'd be interested in hearing about it.
 
We have Meru wireless on our campus.
 
Nathan
 
 
 
 
 
 
Nathan P. Hay
Network Engineer
Computer Services
Cedarville University
www.cedarville.edu

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] iPhone 3.1 breaking Exchange sync?

[Philippe Hanset]

John,

The author goes on a long rant about "your iphone lied about  
encryption to the server"
and I'm sure that Apple will  respond " it depends on your definition  
of encryption".


Traffic is encrypted, local storage was not until today, fine with me!

Considering CPU usage and battery life, I'm wondering if any other  
device

(blackberry etc...) encrypts email locally with Exchange 2007.
Or do we have more liars around? Does anyone know?

I certainly hope that the Blackberry does... there is a nice  
advertisement for it

on a banner at the top of the author's article!

Philippe Hanset
Univ. of TN





On Sep 17, 2009, at 8:58 AM, j...@nww.com wrote:

A number of news stories, such as this one from Infoworld http://www.infoworld.com/d/mobilize/apple-betrays-iphones-business-hopes-723 
, note that Apple fixed a big but unacknowledged bug in the iPhone  
OS, but doing so means that earlier iPhone models can no longer sync  
with Exchange 2007 servers that require on-device encryption.


Are you folks seeing this? And, if so, how are you responding? Any  
workarounds? Any word from Apple?


As a reporter for "Network World," I'm also looking for direct IT  
comments. Please feel free to copy or directly mail my NW account: john_...@nww.com 
.


Thanks.

regards,
John Cox
senior editor
Network World www.networkworld.com



** 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/.

iPhone 3.1 breaking Exchange sync?

[JCox]

A number of news stories, such as this one from Infoworld 
http://www.infoworld.com/d/mobilize/apple-betrays-iphones-business-hopes-723, 
note that Apple fixed a big but unacknowledged bug in the iPhone OS, but doing 
so means that earlier iPhone models can no longer sync with Exchange 2007 
servers that require on-device encryption.



Are you folks seeing this? And, if so, how are you responding? Any workarounds? 
Any word from Apple?



As a reporter for "Network World," I'm also looking for direct IT comments. 
Please feel free to copy or directly mail my NW account: 
john_...@nww.com.



Thanks.



regards,

John Cox

senior editor

Network World www.networkworld.com







**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

RE: [WIRELESS-LAN] Large numbers of clients in one room

[Patrick Reavey]

John,
I'm a little late to the party on this, but I had a very similar request a few 
years ago, supporting 50+ clients in a room  with wireless. I used 3 "a" 
radios(on different channels) and it worked very well, much as you're 
proposing. In fact, it worked so well that when we moved to N we left these 
clients on the old a radios.

Pat Reavey
Loyola College in Maryland

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[wireless-...@listserv.educause.edu] On Behalf Of John York [yo...@brcc.edu]
Sent: Wednesday, September 16, 2009 12:39 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room

Thanks everyone, for the great replies to my post.  The Xirrus arrays
are interesting, and may come into play if budgets improve.  What we are
going to do for the time being, is to remove the b/g only AP's from the
room, and move 3 a/b/g AP's to the ceiling.  We'll also prohibit the
lower bandwidths.  Within a year or so we'll be moving to n.
John

> -Original Message-
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv
> [mailto:wireless-...@listserv.educause.edu] On Behalf Of
heath.barnhart
> Sent: Wednesday, September 16, 2009 12:12 PM
> To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room
>
> John,
>
> As everyone else has said, adding APs to the room might cause some big
> problems with interference. At Washburn we use Xirrus wireless arrays
> to
> provide high density coverage all over campus. Each array as multiple
> directional radios that can operate either frequency ranges (or both
> with 8 radio or higher models) and they now have draft 2 N stuff as
> well. If you are looking at purchasing a solution to your problem you
> might look into them. Otherwise I would check the positioning of your
> current radios to optimize coverage.
>
> Heath
>
> John York wrote:
> > Hi
> > We have a small installation with about 40 Cisco lwap's (b/g)
running
> on
> > a Cisco 4402. I've just gotten a request from a group that wants to
> run
> > 50+ clients in one room.  The last time we tried that about 4 years
> ago,
> > it was a disaster.  We had fat AP's at the time.  There were a lot
of
> > Mac's, and they kept grabbing each other instead of the AP's.  Ugh.
> How
> > do folks handle this now?  With my current system can I just throw a
> > couple more AP's in the room and let them have at it?
> > Thanks
> > John
> >
> > John York
> > Blue Ridge Community College, VA
> >
> > **
> > Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.
> >
>
>
> --
> Heath Barnhart
> Asst. Systems and Networking Admin
> Information Systems and Services
> Washburn University
> Topeka, KS 66621
>
> **
> 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/.