PERFORMANCE OF OPTICAL FIBERS FOR REFERENCE FREQUENCY AND IF SIGNAL TRANSMISSIONS IN VLBI OBSERVATION

Katsuhisa Sato, Tadayoshi Hara

Abstract:	We have constructed a 6 m antenna system in the Nobeyama Radio Observatory (NRO) complex of the National Astronomical Observatory, Japan. This system is used for the International Radio Interferometric Surveying trans-Pacific (IRIS-P VLBI) network observation of the International Earth Rotation Service with the Mark-111 VLBI Back-end and the hydrogen maser frequency standard operating at the control room of the 45m antenna in the NRO. This 8 m antenna is located about 880 m apart from the control room. Therefore, the 10 MHz reference frequency signal and the IP signals should be transmitted over 880 m distance without signal phase fluctuations in the Mark-111 VLBI observations. The phase stabilized signal transmission should be attained by using phase stabilized optical fiber (PsoF).
Published in:	Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting November 28 - 30, 1989 Sheraton Hotel Redondo Beach, California
Pages:	421 - 430
Cite this article:	Sato, Katsuhisa, Hara, Tadayoshi, "PERFORMANCE OF OPTICAL FIBERS FOR REFERENCE FREQUENCY AND IF SIGNAL TRANSMISSIONS IN VLBI OBSERVATION," Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting, Redondo Beach, California, November 1989, pp. 421-430. https://doi.org/10.33012/1989.14537
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