Greetings fellow community have several repeaters R100 MOTOROLA and trying to program the program throws the following message "error cheksum" I use a 486 25mhz with DOS 6.22 and is the original Motorola interface. Someone will have a version of the program you have tried this type programming repeater?. the web that runs without problems but gives error when trying to program. If you have some saved codeplugs a VHF repeater in this series also could serve me. Thanks for your attention.