ChannelCore Flex (CCF) redefines the limits of channeliser technology. It outperforms existing digital down-converter (DDC) ASICs and FPGA cores and can be fully tailored to the needs of an individual application. CCF is unique in supporting thousands of channels, each with independent bandwidth and spacing controls that can be changed even during operation. Thanks to advanced algorithms and highly optimised implementation, this combination of flexibility and performance is achieved with extremely efficient use of FPGA resources. CCF - the universal channeliser solution.