Hemisphere GPS releases two new precision antennas

Hemisphere GPS has introduced two new precision antennas A52 and A21. Hemisphere says that these antennas add more precision, reliability, and value to its Crescent and Eclipse GPS technology.

A52, is a multi-GNSS (GPS L1/L2/L5, GLONASS L1/L2, Beidou, SBAS, OmniSTAR, and Galileo E1/E5a and b) precision antenna and is suggested for various applications including geodetic surveys, RTK positioning and navigation, precise guidance and machine control. This antenna can be used in challenging environments (such as near buildings and foliage) as it has superior multipath mitigation, stable phase center and strong SNR’s even at low elevations.

A21, is an antenna designed to help maintain tracking of GPS and differential correction signals in high electrical "noise" and interference environments and in dynamic applications where the antenna may be turned on its side. This device has a metal base, lower profile, improved multi-path mitigation, and ability to filter out an additional 30 decibels of radio band frequencies. A21 offers good noise rejection.A21. This antenna is already used for aerial application guidance and flow control and is also available for precise mapping and surveying, receives GPS L1, SBAS, and OmniSTAR L-band signals. A21 is designed for use with Hemisphere GPS Crescent and Crescent Vector II receivers.

"The A52 and A21 antennas set a high benchmark for incorporating innovative antenna design into very precise but portable packages," said Walter Feller, Senior Director of Precision Engineering at Hemisphere GPS. "The new antennas will improve GNSS performance for a wide range of customers and applications."

Both the A52 and A21 feature a rugged enclosure with an IP69K environmental rating for high presure and high temperature wash down applications. These antennas feature a metal base and 5/8 inch threaded connectors for secure mounting to survey poles, tripods, vehicle mounts and more. A52 includes both right angle and straight TNC connectors for pole or flush mounting and A21 includes a straight TNC connector. The U.S. National Geodetic Survey (NGS) has published the antenna calibrations for A52 and A21. The antennas wideband cross-dipole design technology is the basis of two pending Hemisphere GPS patents.

The A52 and A21 antennas are available through the Hemisphere GPS Precision Products global dealer network.