any kind of waveteck is pretty good, i myself have a cmip500 this meter is a little confusing to set up but once you get it dialed in its sweet. It can check return, signal levels on all channels, it also capable of voip with a software download, we don't have voip in my system yet but this is what i have been told. Good luck any questions just message me.
This is CABL.com posting #149993. Tiny Link: cabl.co/mNbp