Calian, a leader in high-precision GNSS antenna technology, today announced the expansion of its precision positioning and resilient PNT portfolio with three innovative antenna solutions: the new Accutenna® 4 (AC4) pole mount antenna (AC4990PXF), the latest pole mount Controlled Reception Pattern Antenna (CRPA) (CR8894PXF+), and the AJ979XF+-MAR full-band anti-jamming antenna.
These solutions address the evolving requirements of surveying, mapping, critical infrastructure, marine, autonomy, public safety and defence users who require both precision positioning and GNSS resilience in increasingly challenging RF environments.
Together, the AC4990PXF, CR8894PXF+, and AJ979XF+-MAR full-band anti-jamming antenna address the full spectrum of GNSS requirements, from high- accuracy surveying and machine control to assured positioning, navigation and timing (PNT) operations in interference-prone and contested RF environments as witnessed across Europe.
Designed and Built in Canada for Precision Surveying
The new AC4990PXF antenna, leverages Calian’s innovative Accutenna® 4 technology to provide survey-grade GNSS AC4990PXF performance in a lightweight, rugged form factor optimized for pole-mounted deployments. Built on a novel stacked composite patch antenna element, the AC4 combines full-band GNSS coverage, advanced interference mitigation and superior phase centre stability to support today’s most demanding geospatial workflows.
As surveying professionals face increasing pressure to deliver accurate results in challenging environments, the AC4 pole mount provides a dependable solution for RTK, PPK and PPP applications, helping users achieve consistent centimetre-level positioning performance.
Key Features
• Full GNSS Band Coverage supporting GPS, Galileo, BeiDou, GLONASS, SBAS and correction services in a single antenna.
• Accutenna® 4 Technology featuring an advanced four-feed compact stacked composite patch antenna design that minimizes multipath interference and maintains a highly stable phase centre.
• Survey-Grade Phase Centre Performance with phase centre variation (PCV) of less than 3 mm for highly repeatable RTK, PPK and PPP measurements.
• Lightweight and Rugged Design optimized for survey pole installations and field deployment.
• Superior Interference Rejection utilizing Calian’s proven eXtended Filtering (XF) technology to reject LTE and other unwanted RF signals.