Hemisphere GNSS, a brand of CNH, together with Calian Group Ltd, have released the A65 GNSS antenna, a jointly developed, next-generation solution engineered to deliver exceptional accuracy, superior interference protection, and robust GNSS tracking performance.
<p>The A65 is designed as a drop-in replacement for the widely deployed A45 antenna, offering users a seamless upgrade path to the latest precision technology.</p> <p>The collaboration reflects a shared focus on combining advanced RF design with real‑world application insight to address increasingly complex GNSS operating environments, with both teams working closely from the earliest stages of development to meet demanding original equipment manufacturer (OEM) performance requirements.</p> <p>The antenna architecture itself, including the stacked patch quad feed element and RF front end, was engineered by Calian, and provides Calian’s XF Filtering. Hemisphere GNSS contributed application expertise, system integration requirements, and performance validation within real-world machine control, agriculture, marine and survey environments.</p> <p>The result is a precision antenna that delivers:</p> <ul class="wp-block-list"> <li>outstanding multipath suppression</li> <li>highly consistent phase center variation</li> <li>accurate 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</li> <li>lower power consumption and broad voltage compatibility</li> </ul> <p>Together, Hemisphere and Calian ensured the A65 meets demanding field requirements while exceeding the performance benchmarks of the A45.</p> <p><strong>Calian XF Filtering for Interference Rejection</strong></p> <p>A major advancement of the A65 is the integration of Calian’s XF Filtering. The interference mitigation system rejects out-of-band energy at the antenna level, significantly improving signal quality in RF-challenging environments.</p> <p>Calian XF Filtering provides protection against:</p> <ul class="wp-block-list"> <li>4G / 5G cellular transmissions</li> <li>Ligado and adjacent band interference sources</li> <li>broadband marine and aviation systems</li> <li>industrial and urban RF noise</li> </ul> <p>By combining Calian’s advanced filtering technology with Hemisphere GNSS’s application-level expertise, the A65 delivers cleaner signals, improved reliability, and more stable performance in harsh real-world environments.</p> <p><strong>Engineered for rugged field use</strong></p> <p>Validated through Hemisphere GNSS field testing and Calian engineering qualification, the A65 includes:</p> <ul class="wp-block-list"> <li>IP69K environmental protection</li> <li>High-impact LEXAN radome and robust metallic base</li> <li>Low noise amplifier (LNA) with high gain (2.5 dB NF, 28-30 dB gain)</li> <li>15 kV electrostatic discharge (ESD) protection</li> <li>-40°C to +85°C operating range</li> </ul> <p>These specifications are designed to ensure the A65 provides long-term performance across agriculture, survey, machine control, marine and fixed-reference installations.</p> <p>The A65 GNSS antenna is available now through Hemisphere GNSS. OEM module versions based on the same Calian engineered design are also offered for integrators requiring embedded solutions.</p> <p><p>The post <a target="_blank" rel="nofollow" href="https://www.gpsworld.com/hemisphere-gnss-and-calian-produce-new-high-precision-antenna/">Hemisphere GNSS and Calian produce new high-precision antenna</a> first appeared on <a target="_blank" rel="nofollow" href="https://www.gpsworld.com">GPS World</a>.</p></p>