Thanks for the testing and update.
Quote:The 756ProII driver #48 functions perfectly. The 746Pro driver #56 has one anomaly with the radio buttons not showing as "depressed" when initiating any change in VFO A or B or Split from the radio. They function fine when initiated from the rig control window. All the other buttons for Mode and Filter work fine.
I have this same anomaly with my IC-735 driver #47 that also doesn't show the radio buttons for VFO A or B or Split as depressed when initiated from the radio.
I know that with the 735, this is a limitation of the radio. You can CONTROL VFO A/B, but cannot read. The 735 cannot set or read split. What you have to do is press the split button in LOGic AND on the rig. LOGic will now set the 735 to a split-frequency spot. To go back to simplex, turn split off in LOGic and the radio.
The 756 may have similar limitations. It is better than the 735 in that LOGic can control split. If you change split with the radio's button, LOGic has no way to know this. The solution is to control split only from LOGic. Very few Icom rigs allow READING split. The 7800 was the first, and some rigs since. The 7610 for example.
Tnx & 73,
Dennis WN4AZY