3. Antenna System Improvements 3.1 34-m Antenna System Improvement

摘要

The 34-m antenna at Kashima in Japan was constructed in 1988 as the main station of the West- ern Pacific VLBI network. The antenna was manufactured by TIW (existing VertexRSI) of the U.S.A. About thirteen years have passed since it was constructed. Since then, the radio telescope has been used For both geodetic VLBI and radio astronomy studies. The control system was continuously improved to Provide better performance. This paper describes these improvements and other technical enhancements, Focusing mainly on the hardware.