UNAVCO, founded in 1984 and based in
Boulder, CO, is an organization of Universities focused on GPS
and applications, in part funded by the National Science
Foundation. In November 1995 a report was published by UNAVCO
detailing results of rigorous testing of the five most capable
GPS receivers: Ashtech Z-12, Trimble SSI, Leica SR399, and Allen
Osborne Associates: Turborogue and Rascal. The report, though
quite substantive and timely, was poorly written and not easy to
summarize. NCAD carefully analyzed the report using a consistent
method of normalizing results from each reported observation,
then tabulated the results in a Microsoft Excel spreadsheet
comprising the NCAD "UNAVCO Report Summary".
Note: NCAD is in no way affiliated
with UNAVCO.
If you have the capability to
read Microsoft Excel 5.0 or higher, you may click on the
following line to open the Summary of the UNAVCO Report.
The full report may be downloaded from
UNAVCO (www.unavco.org).