Calian® adds HC979XF and HC979EXF full-band helical GNSS antennas to its helical antenna line-up

April 17, 2024

Calian® adds HC979XF and HC979EXF full-band helical GNSS antennas to its helical antenna line-up

(Ottawa, Ontario, Canada, April 17, 2024)

Calian GNSS Ltd. is excited to announce that it has added the multi-constellation, full-band GNSS-housed HC979XF and embedded HC979EXF antennas to its industry-leading line of helical antennas. The HC979XF antenna has been designed to provide optimal support for the entire GNSS band, including: GPS/QZSS L1/L2/L5 (QZSS L6), GLONASS G1/G2/G3, Galileo E1/E5a/b/E6, BeiDou B1/B2a/b/B3, NavIC L5, and L-Band corrections services.

The key new feature of the HC979XF and HC979EXF antennas is the support for Galileo’s Global High Accuracy Service (HAS) and QZSS’s regional Centimeter Level Augmentation Service (CLAS); both correction services are broadcast in the E6/L6 band (1258-1300 MHz). 

The radio frequency spectrum has become congested worldwide as many new LTE bands have been activated, and their signals or harmonic frequencies can affect GNSS antennas and receivers. In North America, the planned Ligado service, which will broadcast in the frequency range of 1526 to 1536 MHz, can affect GNSS antennas that receive space-based L-band correction service signals (1539 – 1559 MHz). New LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also affected GNSS signals. Calian’s XF models mitigate the effects of these new signals. 

The Calian HC979XF housed helical antenna weighs ~42 g and is enclosed in a robust, military-grade IP69K plastic enclosure. The antenna base has an integrated SMA connector, a water-proofing O-ring, and three screw holes to enable secure attachment. Calian’s embedded HC979EXF helical antenna weighs ~8 g. It is easily mounted with an optional embedded helical mounting ring, which traps the outer edge of the antenna circuit board to the host circuit board or any flat surface. An MCX connector is installed in the base of the antenna. 

Trust Calian to provide clean and pure GNSS signals in a noisy RF world. 

About Calian GNSS Ltd.

We keep the world moving forward. Calian® helps people communicate, innovate, learn and lead safe and healthy lives. Every day, our employees live our values of customer commitment, integrity, innovation and teamwork to engineer reliable solutions that solve complex problems. That’s Confidence. Engineered. A stable and growing 40-year company, we are headquartered in Ottawa with offices and projects spanning North American, European and international markets. Visit to learn about innovative healthcare, communications, learning and cybersecurity solutions.