GNSS Stations for Geodetic Applications:  Equipment and Site Requirements D. Stowers (JPL) and S. Fisher (UNAVCO) Presented at the 2006 AFREF Technical Workshop. Download attached PowerPoint presentation. Read More

This article provides a summary of UNAVCO's comparison of the current state-of-the art hardware from 5 major manufacturers. It will include comparisons of receiver data quality in the following areas: double difference phase residual RMS; qualitative... Read More

GPS Data Collection Methods Various methods are used to collect high precision differential GPS data. The particular method used depends on several factors, including survey objectives, desired precision, available equipment, and field logistics.... Read More

The Effects of L2C Signal Tracking on High-Precision Carrier Phase GPS Postioning Introduction In December, 2005, the L2C signal was introduced to improve the accuracy, tracking and redundancy of the GPS system for civilian users. The unencrypted L2C... Read More

GPSurvey V2.35 - How to process GPS data (outline) UNAVCO 10/9/00 PROJECT: Create New or Open existing project LOAD data From DAT File: - CONFIG "interactive" or "quick edit/batch prompt" PROCESS Baselines – ADD files to process In WAVE... Read More

  UNAVCO Polar Services Trimble NetR9 Campaign Kit UNAVCO Polar Services provide campaign kits suitable for Polar environments. These kits are designed for use with a Trimble NetR9 and R7 receivers and a Zephyr Geodetic GPS or GNSS... 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

Septentrio added the capability of logging and streaming BINEX  to the PolaRx5 receiver model with the release of firmware version 5.1.0 . BINEX is an open binary data format for GNSS research. It has been developed in a collaborative... Read More

The UNAVCO configuration file for the NetR9 (right click to download. is intended for use with firmware version 5.44 Config file is a XML file the firmware file may be downloaded as a mp3 files dues the browser that is used, you will need... Read More

Leica GR10 Resource Page Back to receiver comparison page Receiver GNSS ? Available as special buy Available on loan Serviceable at UNAVCO File Size (24 hr, 15 s) Memory* Time lasts recording at 15 s Power draw w/ antenna Time lasts on... Read More