I have in front of me a scanner which I was given. The face plate reads Radio Shack (upper left corner) TRUNK TRACKER 800MHZ (UPPER RIGHT CORNER) and below the number pad PRO-2050 (lower right corner). Have looked everywhere only for people to tell me this model and scanner does not exist. I only have 300 channels to store and the directions are to hard to comprehend. Pro- 96 & 97's are easy compared to this antique. Anybody have any idea what I have? Any and all help greatly appreciated!!!!!!!!!