Actually with that old a scanner, it doesn't support just programming the control channels - you need to program every frequency for the system.
bojo you can get all that information from our database. I agree, you need to bone up on how trunking works, and use the links I provided to help you understand how to program the 2052. The first link - a PDF file - will introduce you into the world of trunking. The next links I supplied will help you understand how to use the 2052 and program it correctly. best regards..Mike