Surveying an obstructed site

The files are from two ZMax dual frequency receivers.  One is connected to a 700718B antenna on the roof of the building where it has a clear view of the sky.  The SiteID is PHIL

The other ZMax, at BOOK, is set up with the ZMax antenna in the 0.327 meter configuration.

The vertical antenna height at both receivers is 0.000 meters.

BOOK is a very obstructed site.  It is as bad a location for GPS work as I could find without making it impossible to get GPS data.

The purpose of these files is to illustrate how it is possible to have enough SV's to get a solution and still not get a good solution.

Examine the raw data plots from each receiver and the residual plot of the vector.

From more than four hours of common data can you find enough to get a fixed solution?

The PHIL file was submitted to OPUS.  The OPUS report is included in this file.

Phil Stevenson
December 1, 2004
