My readings were consistent in multiple locations so this is unlikely. Instead, the symptoms such as a siren sound via microwave hearing or sudden pains were felt even driving at high speeds. This is likely a microwave weapon that may be in the same frequency range you described (Millimeter Wave) but weaponized so that the frequency is concentrated and pulsed. Just as a wifi microwave frequency, when with a particular signal generator can cause Microwave Hearing (see Frey Effect), but a standard wifi signal meant for communication does not -- so too can millimeter wave be weaponized or have different effects on the body based on how the signal is produced.