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## The Parameters of the RT-13 Radio Telescopes of the “Quasar” VLBI Network of the IAA RAS in S/X/Ka Bands

Труды ИПА РАН, вып. 41, 135–140 (2017)

Ключевые слова: VLBI, 13 m radio telescope, tri-band receiver, noise temperature, SEFD

### Аннотация

Measurement results of the parameters of the RT-13 radio telescopes of the “Quasar” VLBI network in S/X/Ka bands are presented in this paper. The receiver noise temperature and calibration signals are measured by special wide-aperture noise load. Load is installed at the receiver feed and cooled by liquid nitrogen. The calculated and measured system noise temperatures are compared. Focusing and directional pattern measurements are performed by point cosmic radio sources, differing for S/X/Ka bands. SEFD and antenna efficiency are measured by reference cosmic radio source CAS A. The dependences of the system noise temperature, SEFD, antenna efficiency from the antenna elevation angle are obtained.

### Цитирование

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Yu. Vekshin, V. Chernov, D. Ivanov, M. Kharinov, E. Khvostov, V. Mardyshkin, A. Mikhailov. The Parameters of the RT-13 Radio Telescopes of the “Quasar” VLBI Network of the IAA RAS in S/X/Ka Bands // Труды ИПА РАН. — 2017. — Вып. 41. — С. 135–140. @article{vekshin2017, abstract = {Measurement results of the parameters of the RT-13 radio telescopes of the “Quasar” VLBI network in S/X/Ka bands are presented in this paper. The receiver noise temperature and calibration signals are measured by special wide-aperture noise load. Load is installed at the receiver feed and cooled by liquid nitrogen. The calculated and measured system noise temperatures are compared. Focusing and directional pattern measurements are performed by point cosmic radio sources, differing for S/X/Ka bands. SEFD and antenna efficiency are measured by reference cosmic radio source CAS A. The dependences of the system noise temperature, SEFD, antenna efficiency from the antenna elevation angle are obtained.}, author = {Yu. Vekshin and V. Chernov and D. Ivanov and M. Kharinov and E. Khvostov and V. Mardyshkin and A. Mikhailov}, issue = {41}, journal = {Труды ИПА РАН}, keyword = {VLBI, 13 m radio telescope, tri-band receiver, noise temperature, SEFD}, pages = {135--140}, title = {The Parameters of the RT-13 Radio Telescopes of the “Quasar” VLBI Network of the IAA RAS in S/X/Ka Bands}, url = {http://iaaras.ru/library/paper/1721/}, year = {2017} } TY - JOUR TI - The Parameters of the RT-13 Radio Telescopes of the “Quasar” VLBI Network of the IAA RAS in S/X/Ka Bands AU - Vekshin, Yu. AU - Chernov, V. AU - Ivanov, D. AU - Kharinov, M. AU - Khvostov, E. AU - Mardyshkin, V. AU - Mikhailov, A. PY - 2017 T2 - Труды ИПА РАН IS - 41 SP - 135 AB - Measurement results of the parameters of the RT-13 radio telescopes of the “Quasar” VLBI network in S/X/Ka bands are presented in this paper. The receiver noise temperature and calibration signals are measured by special wide-aperture noise load. Load is installed at the receiver feed and cooled by liquid nitrogen. The calculated and measured system noise temperatures are compared. Focusing and directional pattern measurements are performed by point cosmic radio sources, differing for S/X/Ka bands. SEFD and antenna efficiency are measured by reference cosmic radio source CAS A. The dependences of the system noise temperature, SEFD, antenna efficiency from the antenna elevation angle are obtained. UR - http://iaaras.ru/library/paper/1721/ ER -