Spectra Geospatial SPGA Rover Antenna (SPGA Antenna) The Spectra Geospatial SPGA Rover Antenna is a top-tier external GNSS antenna engineered for high-precision RTK surveying and demanding field conditions. Built with advanced multipath mitigation and sub-millimeter phase center repeatability , the SPGA delivers stable, repeatable positioning performance—especially in challenging environments where low-elevation satellite tracking and signal reliability matter most. Designed for both rover and base applications, the SPGA provides comprehensive support for current and near-future GNSS signals including GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS, SBAS, and Trimble RTX —making it a future-ready investment for professional survey and geospatial teams. For dependable operation around common interference sources, the SPGA includes Iridium and Japanese LTE filtering , along with a high-performance LNA delivering 50 dB signal gain to support reliable tracking over long cable runs and in tough RF environments. Key Features Optimized for GNSS base and rover applications Sub-millimeter phase center repeatability for consistent RTK performance Minimized multipath for improved accuracy in real-world sites Robust low-elevation tracking (quality tracking even below 5° elevation ) Comprehensive GNSS support: GPS L1/L2/L5, GLONASS L1/L2/L3, Galileo E1/E2/E5/E6, BeiDou B1/B2/B3, IRNSS L5, SBAS + Trimble RTX High signal gain 50 dB for reliable tracking in challenging environments 5/8"-11 stainless steel mount point + TNC female connector Fully sealed, field-proven durability: –40°C to +75°C , 2 m drop rating, MIL-STD shock/vibration Ideal For Surveying, geospatial, and mapping teams needing a premium external GNSS antenna for RTK rover work or base station setups—especially where multipath, low satellite elevations, or RF interference can compromise positioning quality.