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Advances in Astronomy
Volume 2014, Article ID 517058, 5 pages
Research Article

First Radio Astronomy Examination of the Low-Frequency Broadband Active Antenna Subarray

1Institute of Radio Astronomy, 4 Chervonopraporna Street, Kharkiv 61002, Ukraine
2Kharkiv Radio Engineering College, 18/20 Sumskaya Street, Kharkiv 61057, Ukraine

Received 26 January 2014; Accepted 19 March 2014; Published 8 April 2014

Academic Editor: Dieter Horns

Copyright © 2014 A. A. Stanislavsky et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present the 25-element active antenna array and its remote control in the framework of the GURT project, the Ukrainian Radio Telescope of a new age. To implement beamforming, the array is phased with the help of discrete cable delay lines in analog manner. The remote control of the array is carried out through the paired encoder and decoder that can transmit parallel data about antenna codes serially. The microcontroller provides the online interaction between personal computer and beamformers with the help of the encoder-decoder system through wires or wireless. The antenna pattern has been measured by radio astronomy methods.