Enables digital resampling in the tuner. This is available on all series 4 and later cards supporting tuners. The resampling filter must be loaded using the LOADFC function and the resampling rate must be set by /RATIO=x switch on Midas primitives or the setKey(KEY_RATIO) in user code. The FPGA resampler in the PIC5 tuner has a default filter that should work well for most applications.