Experiment Description
We collected data from Sep. 17 to Nov. 28, 1992, at both
ends of a 50-km baseline between Boulder and Platteville,
Colorado. Trimble TM 4000SST 8-channel dual-frequency
phase and C/A code receivers observed all GPS satellites
above 15 degrees elevation at 30-second intervals. Radiometrics
TM 23.8 and 31.4 GHz WVRs automatically pointed
sequentially towards the satellites, using elevation and azimuth
computed from broadcast GPS ephemerides. A typical
five-satellite scenario required 8 minutes to observe the lineof-sight
wet delay in the direction of all satellites.