Hi Paul, Using two rigs here: FTdx5000 and IC756Pro III. Programme "writes" to Pro III (changes band and/or frequency from "call-sign" field) but will not "read" from it, i.e. no frequency displayed on screen. Programme "reads" from FTdx5000, i.e. frequency is displayed on screen but will not "write" to the rig neither frequency or band. Regards. Duncan