Now to get started - no hobby is simple to get into. Everyone has their own terminology and other things that sometimes makes it a bit overwhelming, scanning included. However we have a series of articles in our wiki that should get you started.
To begin, go up to the blue toolbar under the Scanner Master logo, and float your mouse over wiki. Select wiki homepage. About 2/3 of the way down, there's a section for newcomers. Read these articles, particularly the first couple and the one labeled Trunking Basics. Note that anything in blue, here or in the wiki, is a link of one kind or another.
Keep this link to our database handy - even if you don't understand it fully yet. It's data for Santa Clara county, which includes San Jose