grimace, be much more specific about what you are trying to program. Go up to our database (the link is in the blue toolbar under the site title on the left) and supply some URLs.
I would also read up on what DMA does and how it works. The key, really, is to understand systems, sites and groups. Our DMA FAQ has a few brief articles on the subject...read the first 3 topics (which includes trunking...) from here...
Uniden DMA FAQ- the RR Wiki
At the bottom of the FAQ are the links to the Easier to Read manuals. Download and read the one for the 396XT.
I firmly believe that no program, no matter how easy it might be, can help unless you understand the concepts behind them. Hopefully those links will get you started in the right direction
Best Regards..Mike