Hemisphere GNSS and Calian Group have jointly introduced the A65, a next-generation GNSS antenna designed as a drop-in replacement for Hemisphere’s widely deployed A45 while adding broader constellation support and stronger interference rejection.
The new model is aimed at precision agriculture, survey, marine, machine control and fixed-reference installations.
The A65 combines a Calian-engineered stacked-patch quad-feed antenna element and RF front end with Hemisphere’s application-level integration and field validation. It is built to deliver tighter multipath suppression, consistent phase-center variation and tracking across GPS L1/L2/L5, Galileo E1/E5/E6, BeiDou B1/B2/B3, GLONASS G1/G2/G3, NavIC L5, QZSS and L-band correction services, while reducing power consumption compared to its predecessor.
XF Filtering for interference-heavy environments
A key change from the A45 is the integration of Calian’s XF Filtering technology at the antenna level. The filtering is designed to reject out-of-band energy before it reaches downstream receiver electronics, targeting interference from 4G/5G cellular, Ligado and adjacent-band emitters, broadband marine and aviation systems, and dense urban RF noise.
By pushing more of the interference-mitigation burden into the antenna and low-noise amplifier stage, Hemisphere and Calian are positioning the A65 for GNSS operations in increasingly congested and contested RF environments where legacy antennas can struggle to maintain clean signal quality.
Drop-in mechanical replacement for A45
To ease adoption, the A65 retains the same mechanical footprint, connector location and mounting configuration as the A45, allowing existing users to upgrade without hardware redesign. At the same time, the new model adds:
- Expanded GNSS band coverage
- Integrated XF Filtering
- Improved noise figure with 2.5 dB NF and 28–30 dB gain
- Lower power draw and broader voltage compatibility
Ruggedization features include IP69K environmental protection, a high-impact LEXAN radome, robust metallic base, 15 kV ESD protection and an operating range from –40°C to +85°C, reflecting its intended use on agricultural machinery, construction equipment, workboats and permanent reference stations.
OEM and embedded options
The A65 is available now through Hemisphere’s channels. For integrators that need embedded solutions rather than a finished antenna, OEM module versions based on the same Calian-engineered design are also being offered.
As a subsidiary of CNH Industrial, Hemisphere is positioning the A65 as a straightforward path for existing A45 users to gain wider multi-constellation support and stronger front-end interference protection, while maintaining compatibility with current installations.
