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Radio power being limited on some APs not others

Radio power being limited on some APs not others

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w1f1n00b
Contributor II

‎05-10-2021 02:49 PM

Seeing the following warning in buffered log on some APs

Warning - ah_dcd: wifi: wifi1: Power 16 exceeds HW limit(14), forced to 14

 

Region Code: FCC

Country Code: 840

 

I’ve checked and have other APs, same model, FW, etc. that are running at powers all the way up to 20. Any ideas why some APs acting differently?

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w1f1n00b
Contributor II

‎06-08-2021 11:58 AM

I was able to determine this is only happening on ch36 when radio is set to 40MHz wide.

GTAC closed the case after stating it was FCC regulation, as the regulatory limit reported in CLI is 14. I’ve reached out to my SE to see if he’s able to provide any more detailed info.

View solution in original post

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w1f1n00b
Contributor II

‎05-10-2021 03:05 PM

AP is running at AT power.

Looking through all APs it appears this is happening across the board for ch36 (40MHz). Is that channel regulated differently than 40-48?

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Scott_Whall
Extreme Employee

‎05-10-2021 03:00 PM

Hello John - 

For those APs, are they getting full AT power?

What channels are getting limited to 14?  When you say other APs with same firmware are getting 20, are they also on the same channel?

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GTM-P2G8KFN