Comant’s ComDat triple function single engine antenna for VHF/GPS/XM Weather. Our patented technology provides 80 dB of VHF harmonic suppression allowing Comant to offer VHF and GPS in one radome without in-line filters. Furthermore, this antenna provides XM weather capability. The perfect drop-in replacement to add functionality to a common existing footprint. Certified FAA TSO C144 for GPS and GPS WAAS Class Gamma 1 equipment. Not compliant for GPS WAAS Class Gamma 2 and 3 applications.