Omada controller does NOT actually turn the radios off !!!
I am measuring the emission power of the antennas at a distance of 50cm with an RF meter.
When I plug in, the EAP takes about 15 seconds to boot and then starts emitting rapid pulses at a level of about 1 V/m (I want to say 4 to 6 pulses per second but could be more).
Using Omada Controller, I can then turn on the radio and select different Tx Power levels. The higher I chose, the more V/m the antennas blast out (this part works as expected).
Now, I turn off the radios (both 2.4 and 5 GHz) but the EAP continues to emit pulses at a level around 1 V/m.
It is only when I physically unplug the Ethernet (PoE) cable, that the pulses stop.
Note: If I unscrew the antennas and plug the PoE back in, I still get get pulses but at a much much lower level (almost lost in my background RF noise). This further confirms that the pulses I measure with radios off come out of the EAP225 antennas (and not some other device in the vicinity).
So:
1) I am disappointed that the Omada Controller and product documentation straight out lie to my face. The radio OFF, is NOT a radio OFF ! :((
2) Can TP-Link fix this with a firmware update?
3) What's the point of radio off if it does not actually stop emissions?
4) Can I mitigate this by using smaller antennas but a higher Tx Power setting? (Hoping that in this case, "off" will emit less with smaller antennas). What kind of antennas should I buy? (I don't know what to look for, all wifi antennas on amazon or aliexpress seems to want to advertise "signal boost" which is the opposite of what I would want).
5) On a related note: why is it impossible to set a custom Tx Level below 6 dBm? This seems like a completely arbitrary limitation.
Thanks