BobT, is it possible to make the logging program interface to the 6000 so if the VFO-B isn't up when you connect the two together that the 6000 will generate a RX-B automatically? Or, fool it into thinking one is up so it won't error out? As you found out DX4WIN looks for a VFO-B or it won't connect. Also, If I double click on a spot with no RX-B up I keep crashing SSDR/CAT, if I don't do things in the right order that is.... Is that possible??