If you are trying to program it I would recommend paying for the premium subscription to this site then downloading a programming software like Win500 or PSRedit(both have free trial periods), buy the interface cable, then program the scanner using the radioreference database downloads. For stuff other then programming read the manual and then if you have specific questions ask on here. I was also new to the digital trunkers and with PSRedit and the downloads along with a few forum questions programming my Pro 106 was a snap.