Working on Mirkotik for long time, I alwasy have issues finding the full specs for your radios, I’m looking for a full Sensitivity table for this board R52Hn AR9220 in 802.11n, from brochure only have a little summary from lowest and highest MCS, but really in order to do more precise Link budget calculations will be great if you can provide full table specs with RX sensitivity and TX power.
about receive sensitivity you will have to write to support, but tx-power you can check using winbox open wifi interface details, check if tx-power is set to default and then in advanced mode chose tab - “current tx power” there you will see full table for all supported rates.
or in cli:
/interface wireless monitor <wifi-interface-name> once
output example:
6Mbps:17(17/20)
for 6Mbps rate tx-power is 17dBm, real-tx-power is 17dBm for both chains 20dBm
Sensitivity usually goes nearly linear from the given max to min. If you want exact, please email support@mikrotik.com, but I expect it to be somewhere in the middle between given values.