Does anyone know how to set the R6's AF Filter on by default? The filter cuts the highs, making the radio a lot more pleasant to listen to. I can get it to stick in VFO mode and it will remain on no matter what frequency I tune to, but that doesn't apply to programmed frequencies in memory mode, even if I switch the filter on with an individual channel active. As soon as I leave the channel and come back to it, the setting defaults to off. This isn't covered in the manual.