TH25AT The Mars & Cap mod for the Kenwood TH-25AT is to remove resistors R18-21. They are located on a panel under the display. This one is a real pain to access but this mod gives transmit coverage from 140-163 Mhz. The TM-721A mod gives trans mit from 142-152 Mhz.  Downloaded From P-80 International Information Systems 304-744-2253