Download the attached file for:Topcon GB-1000 - Receiver Board Firmware v3.2Release notes for this firmware are contained in a separate KB article. Read More

Topcon GB-1000 GPS receivers and PG-A1 antennas were selected by UNAVCO for exclusive use in the EarthScope/PBO Campaign Equipment Pool in 2004. This hardware was subjected to extensive testing and evaluation along with competitors that responded to... Read More

Topcon has recently released GNSS receiver board firmware version 3.4 (.zip) for GB-1000 and NetG3 receivers.  This firmware has been tested and accepted for use by UNAVCO's Development and Testing group.Release notes: User visible changes in... Read More

The attached file contains instructions on how to download GNSS data from the Topcon GB-1000. Read More

The Topcon PG-A1 with Ground Plane is the standard antenna distributed with UNAVCO's EarthScope Topcon GB-1000 campaign systems (IGS designation: TPSPG_A1+GP)The original calibration published by the National Geodetic Survey in 2004 were found to... Read More