Good morning all,
We have an outdoor environment with MR86's and we are seeing an issue where the AP's will not increase their transmit power past 11dBm regardless of the target power set or manual configuration on the 5ghz band. This is causing a terrible experience in our environment where RSSI signal levels are averaging -75+ or worse in the areas we are trying to cover.
We think this maybe a code-related bug so anybody that has seen similar behavior or may have insight on this topic, we appreciate your support.
UNII-1 (Will not go past 8dBm)
UNII-2 (Will not go higher than 8dBm)
UNII-2 extended (Will not go higher than 11dBm)
UNII-3 bands are not affected
Meraki support came back with this but it does not line up with actual FCC regulations. Antenna type/gain does not appear to affect these settings.
Hello, I've looked into this behavior internally. It appears this is expected behavior on MR86 APs running MR 31.x. The reason for this is that earlier firmware versions did not follow power limits as per the particular regulatory domain. Starting with MR 31.x, this has been corrected which is why we do not see higher output limits even though the profile may have higher power limits.
Best,
.ılı.ılı.Cisco Meraki Technical Support
Lastly,
Here is what we have for actual transmit power limitations for the FCC regulatory domain
On 5GHz, Meraki MR86 APs are limited to specific power levels on specific channels:
- Channels 36 - 48: Limit 23dBm (200mW)
- Channels 52 - 64: Limit 17dBm (50mW)
- Channels 100 - 144: Limit 17dBm (50mW)
- Channels 149 - 161: Limit 23dBm (200mW)
Many thanks for your support,
Peter D.
