The 8178D-HR High Rejection, High Gain GPS/GLONASS Antenna is a dual-band antenna covering both GPS L1 and GLONASS L1 frequencies. PCTEL’s proprietary filtering design allows wideband coverage while achieving superior out-of-band rejection. This antenna comes in an all-plastic, non-corrosive low-profile package for vehicle mounting or fixed installations. This antenna is ideal for any global GPS/GLONASS tracking or time synchronization application that requires an externally mounted antenna and an extended run of cable.