Hi Mac
Are you sure there's something wrong with it? In my experience the CW filter on a QCX is very soft compared to my K2 and KX3.? The QMX sounds steeper but still soft compared to a crystal roofing filter and dsp.? What are you comparing it to, are you used to a really tight, steep filter?
HNY and 73
Peter, GM0EUL
Peter GM0EUL