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Tallysman Wireless Adds XF Feature to Precision GNSS Antennas

Tallysman recently added eXtended Filtering (XF) to its line of VeroStar® housed and embedded precision GNSS antennas. The XF feature is designed to mitigate i ....

United States , Xtended Filtering , North America ,

Two New Antennas: Lightweight Triple Band for UAVs and

Tallysman Wireless Inc. has added the low-profile triple-band HC997EXF to its line of embedded helical GNSS antennas. The triple-band GNSS HC997EXF embed ....

United States , Galileo High Accuracy Service , Centimeter Level Augmentation Service , Tallysman Wireless Inc , Tallysman Wireless , Xtended Filtering , North America , Level Augmentation Service , Real Time Kinematic , Precise Point Positioning ,

Antenna Filtering Mitigates GNSS Interference - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

Tallysman Wireless announced its new eXtended Filtering (XF) features to the TW3900 series of Accutenna precision antennas. The XF feature is designed to mitigate interference from all near-band signals.
As the radio frequency spectrum has become more congested with many newly-activated Long Term Evolution (LTE) bands for cellular, these signals and their harmonic frequencies can affect GNSS antennas and receivers, according to the company. 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. Lastly, the Inmarsat satellite communication uplink (1626.5 – 1660.5 MHz) commonly used on maritime vessels can also affect nearby GNSS antennas. ....

United States , Tallysman Wireless , Xtended Filtering , Long Term Evolution , North America , ஒன்றுபட்டது மாநிலங்களில் , நீண்டது கால பரிணாமம் , வடக்கு அமெரிக்கா ,