I downloaded a demo copy of ARC300 for my old Pro97. Problem 1: when I save my file with conventional frequencies (pl/dpl included) everything is fine. When I close and reopen the same file the dpl's are in search. Problem 2: when I amended the same file with new frequencies and uploaded to the scanner all pl/dpl are missing on the scanner, but the software still shows them. Using the 20-546 cable and latest software, frequencies are Vhf high. Hope I explained it well enough. Thanks, Chuck.