Network corrected real-time is a technological approach to high precision GPS/ GNSS positioning that has been theorized about, studied, experimented with, and implemented in various academic, scientific, and commercial forms for nearly a decade. Many of the various approaches share the fruits of past research, algorithms, and technological tools; some which are in common.
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HomeNewsEquipment Topcon GR-3 Now with CDMA Cellular Modem Option The American Surveyor
Topcon GR-3 Now with CDMA Cellular Modem Option
Written by Topcon
Thursday, 20 December 2007
Livermore, CA -- A new internal CDMA cellular modem option for the GR-3 family of receivers has been announced by Topcon Positioning Systems. The CDMA option allows the use of signals from Verizon and Sprint, two major cell phone providers.
The new receiver kits are available with both single and dual mode GR-3 UHF receivers. Topcon announced the GR-3 fully integrated system (GNSS receiver, batteries, antenna and communications system) last year.
About Topcon Positioning Systems
Topcon Positioning Systems, a developer and manufacturer of positioning equipment, offers the world’s leading selection of innovating precision GPS, GIS, laser, agriculture, optical surveying, and machine control products, software, and applications. Topcon Corporation is traded on the Tokyo Stock Exchange (7732).
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Livermore, CA -- A new internal CDMA cellular modem option for the GR-3 family of receivers has been announced by Topcon Positioning Systems. The CDMA option allows the use of signals from Verizon and Sprint, two major cell phone providers.
