Does anyone know who in Sacramento operates on the CALAW1 154.92000 frequency? I have it programmed into my scanner and it sounds like aerial surveillance of some sort. Doesn't operate all the time but every couple months I hear an air unit talking to ground units it sounds like. Maybe a personal message response if it's sensitive and someone knows. I know Sac PD CCAT units logged on the Sac TRS system today but don't know if they have access to a low-profile aerial surveillance unit.