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Radio Interference in Astronomical Observatories of China

Published online by Cambridge University Press:  13 May 2016

B. Peng ,
R. Nan ,
T. Piao ,
D. Jiang ,
Y. Su ,
R. G. Strom ,
S. Wu ,
X. Zhang ,
L. Zhu  and
X. Liu
B. Peng
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
R. Nan
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
T. Piao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
D. Jiang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Y. Su
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
R. G. Strom
Affiliation:
NFRA and University of Amsterdam, Postbus 2, 7990 AA Dwingeloo, The Netherlands
S. Wu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
X. Zhang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
L. Zhu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
X. Liu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

Abstract

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We first very briefly introduce the major radio facilities for astronomical research in China, and then report on the present interference situation at major radio observatories. Some of the radio interference problems are caused by paging services, mobile phone satellites, telemetry services for power supply, waterpower and earthquake activity, or radar systems, but some causes are unknown. In the worst case, harmful to radio astronomy, the Sesan VLBI station has not been able to do any observations at 92 cm due to serious radio interference problems since 1992. Still more serious interference coming from satellites can be expected in the next decade. International efforts on frequency protection should be urgently pursued if ground-based radio astronomy is to survive.

Type
Part 4. Threats to Radio Astronomy
Information
Symposium - International Astronomical Union , Volume 196: Preserving the Astronomical Sky , 2001 , pp. 307 - 310
Copyright
Copyright © Astronomical Society of the Pacific 2001