Using the quality check function in Teqc, we analyzed RINEX observation files from two GPS sites in the PBO network over a period of ~2 years. Both the sites in this analysis were equipped with Trimble NetRS receivers. We observed changes in the trac... Read More

The latest public version of firmware for the Trimble NetRS is 1.3-0.  Download links for the installation file and official release notes are linked below:NetRS-1.3-0.ppc.rpm1.3-0 Release Notes (pdf)This release has been formally accepted for... Read More

Trimble NetRS -- How to track and log L2C To enable L2C tracking on a NetRS receiver Change the Record Type to allow L2C data to be written to a session file (Firmware 1.2-0 or later required and firmware 1.3-0 is preferred) - Go to the receiver's w... Read More

The attached PDF describes the procedure to create a compact flashcard that can be used with a NetRS in the event that the OEM flashcard has failed.You need to download the image file too (1GB).A copy can be found here. Read More

While differencing the L2 and L2C carrier phase measurements made with a NetRS receiver, we have observed a banding pattern; the difference between each band is ~0.0039 (1/256) cycles. This banding demonstrates that the digitizing resolution of the... Read More

1.  nc 192.168.1.2 9999 | teqc -binex +rx_state     sends receiver voltage and temperature data to stdout from a binex stream    2.  nc 192.168.1.2 9999 | teqc -binex +met filename.met    ... Read More

Trimble has indicated that there is an issue with their firmware that will cause the 5700 and R7 models to become inoperable after the GPS week roll over on 14 FEB 2016. The issue also affects the 4700/4800 series receivers too, but there is no... 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 UNAVCO standard configuration file for the NetR8 is intended for use with firmware version 4.87. Do not use this file with earlier versions. Users should familiarize themselves with the details of the file and make changes according to their... Read More

If you upgrade a Trimble NetR9 receiver from a firmware version number < 4.41 to a firmware version number 4.41 -> 4.43, then your receiver may not reboot automatically. The voltage supplied to the receiver must be > 15 V for the receiver to... Read More