Calian expands GNSS antenna range for precision surveying and interference resilience

Calian added three antennas covering precision survey work, pole-mounted controlled reception patterns and full-band anti-jamming. The survey model combines full-band coverage, a claimed phase centre variation below 3 mm and interference filtering in a pole-mounted design.

Surveyors and infrastructure operators depend on repeatable positioning, while radio interference can threaten GNSS-dependent workflows. The new products target those requirements, but the announcement alone does not establish their performance under field interference or jamming.

Calian has expanded its precision positioning and resilient PNT portfolio with the AC4990PXF survey antenna, CR8894PXF+ pole-mounted controlled reception pattern antenna and AJ979XF+-MAR full-band anti-jamming antenna. The announcement links two operational requirements: repeatable survey measurements and access to GNSS signals in difficult radio-frequency environments. Most of the supplied technical detail concerns the AC4990PXF. Calian specifies full-band GNSS coverage, phase centre variation below 3 mm and filtering designed to reject LTE and other unwanted signals. Its stacked patch design is intended to reduce multipath interference and support RTK, PPK and PPP workflows. For survey and infrastructure teams, these specifications address measurement consistency and interference exposure at the antenna level. However, the material provides no independent field results and little performance detail for the two anti-jamming products, limiting conclusions about their operational resilience.

Evidence supplied by Inside GNSS.