RF power limits for 2.4ghz Wifi gear
The ACA has set a limit Between the ranges of 2400 MHz to 2483.5 MHz, the limit is a maximum of 4 W (watts) EIRP.
EIRP = Tx (dBm) + Antenna Gain (dB) - Feedline Loss (dB)
mwatts to DBM (where input is
100 Log X 10 = 20 dbm
DBM to mwatts (where 20 is 20dbm
10 x^y ((20 - 30)/10 ) = 100mw