Ashtech and Trimble Choke Ring SNR Analysis Mike Jackson Ph.D. UNAVCO Network Operations Manager 3340 Mitchell Lane, Boulder CO 80301 Introduction The Trimble 4000 receiver is obsolete and the Ashtech Z12 is nearing the end of its product... Read More
Ashtech Choke Ring
Preliminary report on data quality with a Trimble 5700 GPS receiver and an Ashtech Choke Ring Antenna Date: May 22, 2002 Author: Mike Jackson A critical issue with the use of the Trimble 5700 GPS receiver for use as a geodetic base station system is... Read More