Tallysman GNSS antennas with Accutenna technology

Tallysman's compact GNSS antenna range with Accutenna technology is future-proof: GNSS is changing, and an increasing number of receivers are capable of accessing multiple constellations - GPS, GLONASS, Galileo, BeiDou - but to provide the high precision these new generation of satellites enable also requires new antenna technology. Tallysman's proprietary Accutenna dual feed patch technology used in the company's wide range of GNSS antennas provides circular response over the entire antenna bandwidth, yielding superior multi-path signal rejection-low axial ratios, tight Phase Centre Variation (PCV), and a linear phase response, giving excellent precision and price performance. Single feed patch antennas, by contrast, only provide a circular response at a single frequency and exhibit poor multipath signal rejection when receiving signals from two or more constellations. A pre-filtering option is available that gives additional protection from near out-of-band signals if required.

Gyles Panther, President, Tallysman, explains: "Today's wideband GNSS signals require a pure right-hand-circular response over a much wider bandwidth. An inadequate phase response results in poor cross-polarisation suppression, which simply cannot be overcome in the GNSS receiver chip, regardless of its capabilities. Moreover, multipath interference can be expected, even in normal reception situations. Accutenna technology is a cost-effective way to ameliorate this and is particularly beneficial in situations where precision matters."

Please visit www.tallysman.com to learn more about the company's range of antennas featuring Accutenna technology.