Antenna Tests at BEV Vienna 2002-2005

摘要

Since 2002 a short baseline at the roof of the Federal Office of Metrology and Surveying was used for antenna tests. The permanent site WIEN was kept fixed, the twin site WIEB was setup with different antennas (Ashtech, Leica, Trimble, Geotracer). This short baseline was included into a network (distances up to 200 km) to test the short and long distance behavior. While the coordinate changes of the surrounding permanent stations are within the range of EPN variations, some antennas caused large jumps of several centimeters for the up-component of WIEB. For two antenna types it can be proved that the NGS phase corrections are incorrect. Up to now for one of those no correct alternative could be found. The other one has be corrected in a pragmatic way.