Re: [WIRELESS-LAN] Antenna mounting suggestions

[Julian Y Koh]

On Aug 29, 2020, at 22:36, Ricardo Stella 
mailto:ste...@rider.edu>> wrote:

Many look for hidden Mickeys at WDW. I like to look for APs but they are well 
hidden.

Then again, no need to hide them in Galaxy’s Edge..

The Disney folks were great to talk with at recent Atmosphere conferences.  
They had all sorts of fun pictures and stories to tell about hiding (or not 
hiding as you point out) APs in the parks.

--
Julian Y. Koh
Associate Director, Telecommunications and Network Services
Northwestern Information Technology

2020 Ridge Avenue #331
Evanston, IL 60208
+1-847-467-5780
Northwestern IT Web Site: 
PGP Public Key: 


**
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Re: [WIRELESS-LAN] Antenna mounting suggestions

[Ricardo Stella]

Many look for hidden Mickeys at WDW. I like to look for APs but they are
well hidden.

Then again, no need to hide them in Galaxy’s Edge..



---
°(((=((===°°°(((===

On Aug 29, 2020, at 7:23 PM, Jeffrey D. Sessler 
wrote:



I’m a fan of ground or near-ground mounting.  We use the Cisco outdoor
AP’s, and place them in planters and other areas where they disappear into
landscape. Occasionally we’ll mount them below the cameras on a security
pole.



Jeff



*From:* The EDUCAUSE Wireless Issues Community Group Listserv <
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *John Turner
*Sent:* Friday, August 28, 2020 6:39 PM
*To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
*Subject:* Re: [WIRELESS-LAN] Antenna mounting suggestions



I did this back in the mid 2K time frame. I can tell you it was a disaster.
Mounting AP’s up high causes issues in far away places. We would have users
on the 4 th floor connecting to AP’s mounted on the roof of a building 150’
away.



Second with the trees you are suggesting are there they will suck up the RF
quickly.



Do you have any blue lights on the quad? Those are great locations.
Alternatively at the ground level can you penetrate next to a fire
standpipe or environmental sensor with a patch antenna?



You are going to spend a lot of time and money mounting them on the roof
plus the service issues down the road for limited benefit.







On Fri, Aug 28, 2020 at 5:47 PM Enfield, Chuck  wrote:
















PS – I also recommend bonding the AP and mount to the main conductor for
the lightening protection system (LPS).  Without equalizing the potential a
strike may arc from the grounding conductor of the LPS to your wireless
gear which (if

you’re doing it right) will have its own ground.  Without bonding you can
expect very different potentials during a strike, and when that close
together arcing is likely.











*From:* The EDUCAUSE Wireless Issues Community Group Listserv <
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>

*On Behalf Of *Enfield, Chuck


*Sent:* Friday, August 28, 2020 5:29 PM


*To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU


*Subject:* Re: [WIRELESS-LAN] Antenna mounting suggestions











The library is an excellent candidate for a non-penetrating roof mount.  If
you google it you’ll find many options.  Don’t get crazy with the size or
you’ll have to have a structure engineer make sure the roof can handle the
spot loading.

I did the wind load calculations and I think a 100MPH wind could result in
23lb of lateral load on an AP-375, so there’s no need for tons of ballast.
Also, put a pad of some sort (usually available where you order your mount)
between the mount and the antenna

to project the roof membrane.







For Building 2, if you’re trying to cover that smallish space between the
buildings I’d definitely recommend wall-mounted panel antennas.  Put the AP
above the ceiling inside, drill a ¾” hole in the wall, and mount an ant-35
(or something

similar) flat to the wall outside.  If you paint it to blend in with the
brick it will almost disappear.











*From:* The EDUCAUSE Wireless Issues Community Group Listserv <
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>

*On Behalf Of *Brian Helman


*Sent:* Friday, August 28, 2020 3:50 PM


*To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU


*Subject:* [WIRELESS-LAN] Antenna mounting suggestions











Hey everyone:







I hope you’re coping with the chaos and enrollment challenges.







So we’re rolling out a major wireless upgrade using Aruba gear.  A part of
this rollout is to provide wireless coverage to a few outdoor spaces.  One
of these spaces is a quad flanked by 2 relatively tall buildings (about 6
stories).  One

of those buildings has a flat roof with no knee wall or parapet.  The other
has a parapet that has glass on the outside.  Both are rubber-membrane
roofs, so mechanical attachment isn’t going to fly.  The building with the
parapet only has about a 6’ clearance

between the wall and solar panels, so I only have about 2’ to work with.







Building 1:



Flat roof



Rubber membrane



Roof has a minimal lip before you drop 6 stories



Has a penthouse that is recessed from the side of the building that I can
put electronics on/in







Building 2:



Library



Flat roof



Rubber membrane



~40” knee wall/parapet



Rubber membrane goes almost to top of knee wall, then is capped with lead
and a lightning ground



Outside of wall is glass







Our basic philosophy here is to separate the access points and antennas (ie
use external antennas).  We can’t attach anything to the face of the
Library (Building 2) because of the glass and I don’t really want to have
to maintain electronics

over the edge of a building anyway.  So, how are people installing antennas
on roofs pointed down to cover quads 60+’ below?  I’ll figure out where to
put the AP’s and dress in the cables.







Mounting at ground-level isn’t going to work.  There is too much sidewalk
and landscaping that would have to be 

RE: [WIRELESS-LAN] Antenna mounting suggestions

[Jeffrey D. Sessler]

I’m a fan of ground or near-ground mounting.  We use the Cisco outdoor AP’s, 
and place them in planters and other areas where they disappear into landscape. 
Occasionally we’ll mount them below the cameras on a security pole.

Jeff

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of John Turner
Sent: Friday, August 28, 2020 6:39 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Antenna mounting suggestions

I did this back in the mid 2K time frame. I can tell you it was a disaster. 
Mounting AP’s up high causes issues in far away places. We would have users on 
the 4 th floor connecting to AP’s mounted on the roof of a building 150’ away.

Second with the trees you are suggesting are there they will suck up the RF 
quickly.

Do you have any blue lights on the quad? Those are great locations. 
Alternatively at the ground level can you penetrate next to a fire standpipe or 
environmental sensor with a patch antenna?

You are going to spend a lot of time and money mounting them on the roof plus 
the service issues down the road for limited benefit.



On Fri, Aug 28, 2020 at 5:47 PM Enfield, Chuck 
mailto:cae...@psu.edu>> wrote:













PS – I also recommend bonding the AP and mount to the main conductor for the 
lightening protection system (LPS).  Without equalizing the potential a strike 
may arc from the grounding conductor of the LPS to your wireless gear which (if

you’re doing it right) will have its own ground.  Without bonding you can 
expect very different potentials during a strike, and when that close together 
arcing is likely.





From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>

On Behalf Of Enfield, Chuck


Sent: Friday, August 28, 2020 5:29 PM


To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU


Subject: Re: [WIRELESS-LAN] Antenna mounting suggestions





The library is an excellent candidate for a non-penetrating roof mount.  If you 
google it you’ll find many options.  Don’t get crazy with the size or you’ll 
have to have a structure engineer make sure the roof can handle the spot 
loading.

I did the wind load calculations and I think a 100MPH wind could result in 23lb 
of lateral load on an AP-375, so there’s no need for tons of ballast.  Also, 
put a pad of some sort (usually available where you order your mount) between 
the mount and the antenna

to project the roof membrane.



For Building 2, if you’re trying to cover that smallish space between the 
buildings I’d definitely recommend wall-mounted panel antennas.  Put the AP 
above the ceiling inside, drill a ¾” hole in the wall, and mount an ant-35 (or 
something

similar) flat to the wall outside.  If you paint it to blend in with the brick 
it will almost disappear.





From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>

On Behalf Of Brian Helman


Sent: Friday, August 28, 2020 3:50 PM


To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU


Subject: [WIRELESS-LAN] Antenna mounting suggestions





Hey everyone:



I hope you’re coping with the chaos and enrollment challenges.



So we’re rolling out a major wireless upgrade using Aruba gear.  A part of this 
rollout is to provide wireless coverage to a few outdoor spaces.  One of these 
spaces is a quad flanked by 2 relatively tall buildings (about 6 stories).  One

of those buildings has a flat roof with no knee wall or parapet.  The other has 
a parapet that has glass on the outside.  Both are rubber-membrane roofs, so 
mechanical attachment isn’t going to fly.  The building with the parapet only 
has about a 6’ clearance

between the wall and solar panels, so I only have about 2’ to work with.



Building 1:

Flat roof

Rubber membrane

Roof has a minimal lip before you drop 6 stories

Has a penthouse that is recessed from the side of the building that I can put 
electronics on/in



Building 2:

Library

Flat roof

Rubber membrane

~40” knee wall/parapet

Rubber membrane goes almost to top of knee wall, then is capped with lead and a 
lightning ground

Outside of wall is glass



Our basic philosophy here is to separate the access points and antennas (ie use 
external antennas).  We can’t attach anything to the face of the Library 
(Building 2) because of the glass and I don’t really want to have to maintain 
electronics

over the edge of a building anyway.  So, how are people installing antennas on 
roofs pointed down to cover quads 60+’ below?  I’ll figure out where to  put 
the AP’s and dress in the cables.



Mounting at ground-level isn’t going to work.  There is too much sidewalk and 
landscaping that would have to be disrupted.  It’d be a budget-buster.



Again, physically attaching anything isn’t going to be acceptable and in 
Building 2’s (Library) case, a large weighted sled will encroach on the service 
area for the solar panels.  There