Jeff I don't know for sure, but if the kx3 is like the k3...the utility program sees the radio serial number and will only re write to the same serial.... Harlan NC3C Sent from my Verizon Wireless 4G LTE DROID Jeff Herr <herr42 at comcast.net> wrote: why cant you use the kx3 utility to back up one unit then restore those setting to a second unit?