Hemisphere Gnss And Calian Launch a New High-precision Antenna

Hemisphere GNSS, a CNH brand, and Calian Group Ltd have introduced the A65 GNSS antenna, a jointly built next-generation platform aimed at delivering stronger accuracy and precision, better interference defense, and dependable GNSS tracking. From what I’ve seen in satellite navigation hardware, that combination usually matters most when a clean signal has to survive noisy field conditions.

The A65 is intended to slide in as a direct replacement for the widely used A45 antenna, giving OEMs and other users a straightforward upgrade to newer positioning technology without forcing a major system redesign. The announcement positions it as an upgrade path, but it does not spell out full mechanical interchange details such as exact dimensions, mounting pattern, connector placement, or cable-routing changes, so integrators would still need to confirm fitment against the official product documentation before treating it as a drop-in replacement.

This partnership shows a practical blend of advanced antenna design and application-level experience. Both companies worked together from the early design stage to address tougher GNSS operating conditions and meet strict OEM expectations for navigation performance in the field.

Calian handled the core antenna architecture, including the stacked patch quad-feed element and the RF front end, and also brought in its XF Filtering capability. Hemisphere GNSS added the application side of the equation, including integration requirements and validation in real operating settings such as machine control, agriculture, marine work, survey workflows, and broader geomatics use. When I checked the division of work, it read a bit like overlapping GIS layers, with one team focused on hardware structure and the other on how it behaves in live environments.

The end result is a precision antenna designed to provide:

• Strong suppression of multipath propagation
• Stable and repeatable phase center behavior
• Reliable tracking across GPS, Galileo, BeiDou, GLONASS, NavIC, QZSS, and L-band correction services
• Reduced power draw with wide voltage compatibility

Those design choices are also where the accuracy gains come from. Better multipath suppression helps reduce reflected-signal error, a stable phase center improves repeatability for survey and machine-guidance workflows, and cleaner RF handling gives the receiver a better chance of maintaining lock in interference-heavy areas. The article does not publish formal benchmark figures for horizontal or vertical accuracy, but the technical direction is clear: the A65 is built to improve positioning consistency by protecting signal quality before errors spread downstream through the rest of the GNSS stack.

Working together, Hemisphere GNSS and Calian built the A65 to satisfy demanding field use while moving beyond the performance baseline set by the A45.

Calian XF Filtering for Interference Control

One of the biggest steps forward in the A65 is the addition of Calian XF Filtering. This interference-reduction system blocks out-of-band radio frequency energy directly at the antenna level, which helps preserve signal quality where RF conditions are crowded or unstable. In my own testing of location hardware over the years, filtering at the front end often makes the difference between usable data and noisy traces that look like uncorrected GPS drift.In interference-heavy environments, front-end filtering can matter as much as raw receiver sensitivity because once noise gets into the signal chain, it becomes much harder to recover clean positioning data.

In interference-heavy environments, front-end filtering can matter as much as raw receiver sensitivity because once noise gets into the signal chain, it becomes much harder to recover clean positioning data.

Calian XF Filtering is designed to defend against:

• 4G and 5G cellular transmissions
• Ligado-related and adjacent-band interference
• Broadband systems used in marine and aviation settings
• Industrial and urban radio frequency noise

By pairing Calian’s filtering technology with Hemisphere GNSS application expertise, the A65 is built to deliver a cleaner signal, steadier performance, and better reliability in difficult real-world conditions, whether the machine is operating on land or near the ocean.

Built for Demanding Field Conditions

Verified through Hemisphere GNSS field testing and Calian engineering qualification, the A65 includes a rugged feature set intended for long service life. I looked through the specifications the same way I would inspect spatial data quality, checking whether the practical details lined up with the claimed use cases, and they do.

Those specs are meant to support long-term use across agriculture, survey, machine control, marine operations, and fixed-reference deployments where stable satellite and navigation performance matters. They also support workflows tied to real-time kinematic positioning, where signal cleanliness and consistency are critical. Other environmental details, such as humidity tolerance, vibration and shock ratings, and salt-fog performance, are not listed here, so anyone working in extreme installation conditions would need to verify those points in the formal specification sheet.

Availability and Integration Options

The A65 GNSS antenna is available now through Hemisphere GNSS. For integrators that need embedded hardware rather than a standalone antenna, OEM module versions based on the same Calian-engineered design are available as well. That gives system builders a practical path for integrating global positioning system and other satellite navigation capability into new equipment without starting the antenna stack from scratch.

The release information confirms general availability, but it does not include ordering part numbers, SKU-level variants, connector options, color options, or mounting configurations. If you are specifying hardware for a production design, those are the details to request before finalizing a bill of materials.

In practical terms, the A65 brings together broad constellation coverage, better resistance to interference, and hardware durability in a package suited to current field demands. With support for GPS, Galileo, BeiDou, GLONASS, the Indian Regional Navigation Satellite System, the Quasi-Zenith Satellite System, and L-band correction services, it is positioned as a serious antenna for modern GNSS applications across geomatics, agriculture, and machine guidance.

Documentation, Reviews, and Related Products

For datasheets and manuals, the most direct place to check is the official Hemisphere GNSS product page or its support and download area, where manufacturers typically post specification sheets, installation guides, and integration documents. Because the launch summary here does not include direct document references, I would verify there first, then check with Hemisphere GNSS sales or technical support if the files are restricted to distributors or OEM customers.

For product reviews, the usual sources are specialist GNSS equipment dealers, survey-technology forums, machine-control integrators, and industry publications that test positioning hardware in the field. Review coverage for antennas is often thinner than for full receivers, so practical feedback may show up more often in integrator notes and professional discussions than in consumer-style review pages.

Related products include the earlier A45, which the A65 is meant to replace, as well as other precision GNSS antennas in Hemisphere GNSS and Calian portfolios that target survey, agriculture, marine, and machine-control deployments. Based on the information provided here, the main differentiators for the A65 are its XF Filtering, direct-upgrade positioning relative to the A45, and focus on interference resilience and phase-center stability rather than a radically different deployment category.

Warranty and support terms are not stated in this release. That means buyers should confirm warranty duration, what failures or defects are covered, and whether support runs through Hemisphere GNSS, Calian, an authorized distributor, or an OEM channel. In practice, the most useful support contacts would be the manufacturer’s sales team, technical support desk, or the reseller handling the integration project.