Access point power levels

Unanswered Question
May 26th, 2010
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I am running a 4400 controller and cant remember how to read the access point power levels.   I know the range is 1 to 8 but what represents full power.  Is it 1 or 8.


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Overall Rating: 5 (6 ratings)
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tysonhall Wed, 05/26/2010 - 10:36
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from command line: show run-config


Tx Power
      Num Of Supported Power Levels ............. 8
      Tx Power Level 1 .......................... 20 dBm
      Tx Power Level 2 .......................... 17 dBm
      Tx Power Level 3 .......................... 14 dBm
      Tx Power Level 4 .......................... 11 dBm
      Tx Power Level 5 .......................... 8 dBm
      Tx Power Level 6 .......................... 5 dBm
      Tx Power Level 7 .......................... 2 dBm
      Tx Power Level 8 .......................... -1 dBm

So, to answer your question: 1

tysonhall Wed, 05/26/2010 - 10:40
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Revised:


5GHz

Tx Power
      Num Of Supported Power Levels ............. 8
      Tx Power Level 1 .......................... 17 dBm
      Tx Power Level 2 .......................... 15 dBm
      Tx Power Level 3 .......................... 14 dBm
      Tx Power Level 4 .......................... 11 dBm
      Tx Power Level 5 .......................... 8 dBm
      Tx Power Level 6 .......................... 5 dBm
      Tx Power Level 7 .......................... 2 dBm
      Tx Power Level 8 .......................... -1 dBm

2.4GHz

Tx Power
      Num Of Supported Power Levels ............. 8
      Tx Power Level 1 .......................... 20 dBm
      Tx Power Level 2 .......................... 17 dBm
      Tx Power Level 3 .......................... 14 dBm
      Tx Power Level 4 .......................... 11 dBm
      Tx Power Level 5 .......................... 8 dBm
      Tx Power Level 6 .......................... 5 dBm
      Tx Power Level 7 .......................... 2 dBm
      Tx Power Level 8 .......................... -1 dBm


Hope this helps you out.

nh6we Wed, 05/26/2010 - 11:02
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Thanks - thats what I needed.


Chris

George Stefanick Fri, 05/28/2010 - 09:55
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There is a lttle catch you need to know on the A side ... Depending on the channel you select the TX power is different ..Here you can read more about this ...


http://www.my80211.com/cisco-wlc-labs/2009/10/30/what-you-need-to-know-about-tx-power-and-80211a-5ghz-on-a-ci.html


Example --


If you use channel 36 your max TX power is 11 dBm which is power 1 on the controller.



If you use channel 149 your max TX power is 17 dBm which is power 1 on the controller



I hope this helps...


Please rate helpful post!


Thanks

tysonhall Fri, 05/28/2010 - 10:37
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Oh yes, nice catch George.  Excellent site, btw, I visit it often.

George Stefanick Fri, 05/28/2010 - 10:44
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Hey Hall...


Thanks ... I have some new videos going up in the next 2 weeks and some great troubleshooting tips ...


btw -- Thanks a bunch for the rate!

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