riccardo wrote: > Hoiwever, and it's a big one ... the program cannot converse with the radio. > I have tried resetting the program to use com ports 1 through to 6 ... but on > each occasion after testing the link, the program states it cannot converse > with the radio ... and the behaviour of the led's on the face of the radio > cabinet reinforces this view. Do you have read-write access to that com-port device [/dev/ttyS0]?