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Fri, Jul 19, 2013 10:37 PM

Answered

Ceiling vs Wall mount for 7982?

Ceiling vs Wall mount for 7982? What is the optimal position and where can we see full radiation pattern map for its antenna array? Since overhead mount in the centre of the space to be covered is seldom an option for my case, just how much do I lose with a wall mount and what to look for in such deployment scenarios?
For example Cisco explicitly states not to use integrated antenna models as wall mounts, but to use ext. antennas positioned flat up and down the wall. I see no warning in Ruckus manual but I guess you can't have optimal beam in both of these cases?

Responses

43 Messages

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844 Points

7 years ago

Hello.

With reference to your post, we recommend Ceiling Mount for all Indoor Ruckus AP's. All ruckus devices have internal SMART ANTENNA's on them and they use BeamFlex which is a Ruckus patent technology.

BeamFlex consists of a smart, compact antenna array with multiple elements, which can be combined in real time to form unique antenna patterns. The advanced BeamFlex system software continually learns the environment with all its hostilities and interference sources, including disruptive RF conditions, numerous communicating devices, network performance issues, and application flows. Then, it selects the optimum antenna pattern for each communicating device in real time, while actively mitigating interference and minimizing noise to nearby networks and devices.

Unlike omni-directional antennas that radiate signals in all directions, BeamFlex directs transmit energy towards the best path to the receiving device. And unlike fixed-positioned directional antennas, BeamFlex dynamically configures its "beam" on a per-station, per-packet basis, to achieve omni-directional coverage.

Hope this answers your questions. all the best.

129 Messages

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1.6K Points

What does Ruckus suggest for outside antennas: zf7762 ??

368 Messages

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5.6K Points

Same for all APs, indoor or outdoor. If you need to cover a stairwell you can think of installing it "vertically".

3 Messages

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100 Points

7 years ago

Thanks, but is there something alike horizontal and vertical pattern map for the 7982 antenna array available, without beamflex effect (it can only get better with beamflex :) ?

683 Messages

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11K Points

7 years ago

We ship those antenna patterns with our mapping product and don't really have them in digestible format otherwise, but I'll see if I can find something (it's been on my todo list for a while). I believe the image here is the 5Ghz elevation

129 Messages

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1.6K Points

Keith: Did you "find something?"

3 Messages

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100 Points

7 years ago

Thank you very much, you have been of much help. I'll consider getting special mounts (or having them made) that keep AP horizontal for situations where ceiling mount is not available and such pattern is not optimal for coverage.

5 Messages

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190 Points

7 years ago

http://www.homedepot.com/p/Closet-Pro...

Works well for wall mount for $4. Install it "upside down".

9 Messages

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174 Points

Ray, does that bracket work with the ceiling rail mount on the back of the ap? That would be so cool! Thanks!

129 Messages

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1.6K Points

Does upside down really help very much since Ruckus has smart-antennas and beamflex?

683 Messages

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11K Points

It does - most of the RF propagates through the "top" of the unit as seen in the elevation above.

129 Messages

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1.6K Points

How about wall versus ceiling?

683 Messages

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11K Points

Imagine a large donut sitting on top of the unit and that will probably help you. They're designed for ceiling mount. Wall mount will work, but some signal will be "wasted" at floor and ceiling.

5 Messages

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190 Points

7 years ago

Yes, the tbar clips fit better on the bracket than on my actual tbar.

129 Messages

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1.6K Points

Go to legalzoom.com a patent your idea....hurry !

9 Messages

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174 Points

7 years ago

Brilliant!

129 Messages

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1.6K Points

7 years ago

An alternative to attach ZF7982's to recessed ceiling grids:

I am presently experimenting with a piece of drop ceiling grid and a specialized grid attachment hook. All from home depot for a install price of about $1.30 per drop ceiling mounted ZF7982 (AP).

Steps:
1. Purchase extra drop ceiling "T" at any length. Longer pieces reduce cost per section.
2. Cut the spare "T" grid to about 6 1/2 inches. (tin snips are helpful)
3. Drill two 1/8 inch holes in vertical side of ceiling grid.
4. Slip 6 1/2 inch cut ceiling grid into AP slots.
5. Attach grid hook and mount to ceiling grid.

Perfect? No. Cheap? Yes

HomeDepot parts >>

http://www.homedepot.com/p/Suspend-It...

http://www.homedepot.com/p/DONN-Brand...

Sample install Pics >>



1 Message

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60 Points

6 years ago

Hi, i have a LGPA77U Led projector which i placed in the ceiling about 8' 11'' h  and 9' 9'' away from the screen (100'' diag), i noticed that when I’m trying to adjust the focus to stabilize the image, half of the screen down or up looks blurring, and i just remember that when i placed it before on top of a shelf in the back wall (projecting directly to the center of the screen) (10' 6'' away from the screen) i didn’t had that problem, the image quality was great!  My question is: is this can be true? I will always have better image quality projecting from the wall vs the ceiling directly to the screen?

 

24 Messages

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320 Points

4 years ago

Why not just use the white brackets that came with it, that what i did.

Lift up the ceiling boards and clip from either side of the flat aluminium bar in your pic (that holds ceiling panels up)  Works perfecty.

62 Messages

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936 Points

4 years ago

I use Oberon that manufacturers brackets for Access Points.  http://oberoninc.com/products/right-angle-brackets