RF Predictions in WCS

So I am adding access points to WCS 6.0 and I am using a specialty antenna. When I choose other for the antenna type and I enter the dbi of the antenna when I hit save to place the APs it tells me it cannot give em the rf prediction for those APs. How do I get around this other than selecting a cisco antenna?

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Hi nshoe18
To do RF predictions the radiation patterns (
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Azimuth and Elevation) for the antenna needs to be known not just the power.
Therefore, as WCS doesn’t have the detail for the antenna you’re using it can’t perform the prediction, this is a limitation of WCS but it guarantees the accuracy of the coverage prediction.
It also enforces the point of buying Cisco antennas!
Troy

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Error with RF prediction in WCS

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Error: Some of the AP's RF Prediction is not yet computed. Please go to the AP placement page and place the APs properly, specify the correct antenna and then recompute the RF prediction.
I tried to do all the suggested actions but I had no changes.
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Try removing both APs from the map and saving. Next, go back into the map an assign the APs. If they still do not map then I would look at the traps on the controller and make sure that the AP is fine. I would also look at performing an on demand refresh from the controller to the WCS. You can do this from the management page in WCS.

LWAPP/CAPWAP Antenna Gain Setting - label only?

When configuring an AP external antenna gain (from a WLC), is the gain assigned purely a label to show its gain, or does it actually wind down the transmitter output by the dB amount that is input in to the gain field?
For instance, my Tx power is set to 2 (17dBm), and I attached a 2.2dBi antenna.
My ERP would now be 19.2dBm.
Does the antenna gain value I enter (4 x 0.5) actually cause the AP to lower its output power by 2.2dB to cater for the fact that I have attached a 2.2)dB antenna and maintain its 17dBm output? (...OK, I know 4 x 0.5 will give 2dB, but lets talk in round numbers)
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Excellent, I googled that and it is correct. For others that visit this discussion, here is the document:
http://www.ciscosystemscapital.biz/en/US/docs/wireless/wcs/release/notes/WCS_RN7_0_172.pdf
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Hi,
WCS version: 7.0.230.0.
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I have experienced this exact problem before in WCS 7 a couple of years back and we are not the only ones it seems: https://supportforums.cisco.com/thread/2040769
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Currently there is not a way to create or edit an obstacle. You will want to contact your account team to open a PERS if this is a business need. It sounds like a valid feature to me.

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Sent from Cisco Technical Support iPhone App

WLC 5508 & Aironet 3502 questions CleanAir, AP modes, WCS

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Hi Jason,
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The Cisco "best practice" for the WCS is to be at an equal or greater version
release than the WLC. In your case;
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5.2.193.0
5.2.178.0
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4.2.176.0
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4.2.99.0
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http://www.cisco.com/en/US/docs/wireless/wcs/release/notes/WCS_RN7_0.html#wp44347
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Hi,
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Below you can see that internal antenna is well detected on some AP but not for all.
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Wow i just solved it ...
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Does WCS come with the 5508 WLC?

Forum
I am providing a quote to a client for a wireless installation. I have two 5508 boxes and about 40 AP's on the quote, as well as associated SmartNet.
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Give Club Nokia a call, they'll be able to help you with this, especially as you have a network independent (sp!) model... btw, where did you get it from?
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RF Predictions in WCS

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