CCSDS - SFCG Efficient Modulation Methods Study at NASA/JPL - Phase 4: Interference SusceptibilitySusceptibility to two types of interfering signals was requested by the SFCG: a pure carrier (single frequency tone)and wide-band RFI (characteristics unspecified). Selecting a broad-band interfering signal is diffuclt because it should represent the types of interference to be found in the space science service bands.