Hey Steve,
There is a ham "K5JV", who is running his 480 with out the control head,
but with his computer. It is kind of a long story. It was shipped from the
factory and Kenwood said there was no way that it could happened. They
would not replace it or send him another one and the original owner put it
on Ebay and Lon bought it and is talking on it regularly. Of course Lon is
quite a technician.
Richard KF5UB