Effect of RNS moduli set selection on digital filter performance for satellite communications The paper presents the results of investigation of RNS moduli set selection effect on the digital filters performance in satellite communication systems. Parks- McClellan filters with the order from 8 to 63 and 7 the most balanced RNS moduli sets were investigated. It is shown which of the considered moduli sets provide the best performance for such systems. Simultaneously difference in performance between the various moduli sets can be up to 32%.