Gain measurement of a 13.7 m paraboloid antenna and the calibration of solar radio flux density.

Details Gain measurement of a 13.7 m paraboloid antenna and the calibration of solar radio flux density. Gain measurement of a 13.7 m paraboloid antenna and the calibration of solar radio flux density.

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995acaps..15..267z&link_type=abstract

Acta Astrophys. Sin., Vol. 15, No. 3, p. 267 - 274

Astronomy and Astrophysics

Astrophysics

1

Radio Telescopes: Antennas, Solar Radio Radiation: Calibration

Scientific paper

The gain of a radio telescope with a 13.7 m paraboloid antenna operating at 22 GHz is measured based on the brightness temperature of the new Moon disk center and by the method for temperature calibration of the quasi-aperture plane of the horn. By measuring the antenna gain (its value is 67.1±0.07db) the solar radio flux density is calibrated. The systematic error of the flux calibration is ±5.8%, the accidental error is ±2.7%. The brightness temperature of the quiet Sun (or region without solar radio source) is 10100±300K. The authors deduced and calculated Ks, the correcting factor of the antenna pattern and calculated the flux density of the radio source emission.

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