Looking for proven modifications for the new PRO 43 scanner ? Restore cellular bands; significantly lower volume of keypad entry beeps; improve high frequency response of built-in speaker; and add the 54-88 Mhz band !!! Go on-line to Compuserve and look into the HAMNET forum and use the "browse" "all files" commands with "radio shack" or even "pro-43" as keywords to find the files. I believe 3 mods are in one file and the fourth is by itself in another. I have done the 4 modifications myself and they work. Just be SURE you know EXACTLY which diodes and resistors to remove and/or move. If your not, don't try it. And, of course, anything you do is YOUR responsibility. By, the way, monitoring the cellular bands is illegal. GOOD LUCK !