Those of you running your RX-888 at the thermally preferred 64.8 Mhz almost certainly need a good 30 MHz anti-aliasing filter like this in front of your RX-888.
His product also includes a configurable 10 MHz high pass shelving filter inspired by Clint KA7OEI's designs. As the bands open more and more, suppressing both AM and SW broadcasters can help minimize overloading of all direct sampling SDRs like the RX-888 and the KiwiSDR.
Email me if you are interested in one
