RFI
I think you are barking up the wrong tree here! I just did a quick calculation using 28 Volts across a 1k ohm load (the coil at RF) and used 140dB for space loss beyond the e-field.
I came up with 78 TeraWatts!
If someone was using that kind of RF power, you would know. All the lights in and around the airport would dim!