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Extending the Facilities of BRAS by External Digital Downconverter Bank

Authors: S. Grenkov, D. Marshalov, E. Nosov

Journal: Transactions of IAA RAS vol. 41

Pages: 65–68

Year: 2017

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About the paper

Keywords: VLBI DAS, BRAS, digital downconverter bank

Broadband Acquisition System (BRAS) is a digital backend used on new fast-slew rate radiotelescopes RT-13. The system implements eight wideband channels of 512 MHz that allows to achieve high sensitivity of the radio interferometer but complicates processing of joint observations with narrow-band types of backends. To simplify such observations IAA RAS is developing external digital downconverter bank. The results of the development is presented.