Decameter wavelength radio emission is finely structured in solar bursts. For their research it is very important to use a sufficient sensitivity of antenna systems. In this paper we study an influence of the radiotelescope-antenna effective area on the results of decameter solar radio observations. For this purpose we compared the solar bursts received by the array of 720 ground-based dipoles and the single dipole of the radiotelescope UTR-2. It's shown that a larger effective area of the ground-based antenna allows us to measure a weaker solar emission and to distinguish a fine structure of strong solar events. This feature has been also verified by simultaneous ground- and space-based observations in the overlapping frequency range.
@article{arxiv.1111.3226,
title = {Antenna Performance Analysis for Decameter Solar Radio Observations},
author = {Aleksander Stanislavsky and Aleksander Konovalenko and Eduard Abranin and Vladimir Dorovskyy and Valentin Mel'nik and Michael Kaiser and Alain Lecacheux and Helmut Rucker},
journal= {arXiv preprint arXiv:1111.3226},
year = {2011}
}