Turn off ICm710. Press and hold "Function" and "1"? while powering back up again. Try "d-Sub REMT-IF" selection not Pin or clone. I know you are using the clone jack but this is what works for me. It is not as good as using the rs422 remote port connection but everything changes on the radio 100% but some of the feedback indicators in HRI do not update when using the clone pin as they do with the rs422 remote db9 connector.
Put ferrites on all cables.
Tom KC1GTU
