Since you mentioned that you need to find new frequencies, the link given earlier won't help - but this will -
Programming Your Uniden Scanner - The RadioReference Wiki
Anything in blue in the article above is a link. You will need to do some reading (and look in our database to see if we have the new freqs you need), so get comfortable, you're going to be here awhile;
a. Go to the
Easier to Read homepage and download the manual for the BCT15X. Scanner Master also sells a printed version. Before you go any further, read this - discard the manual the scanner came with.
b. Our
Uniden DMA FAQ will fill you in on many topics the Easer to Read manual doesn't. It also has a brief article explaining systems, sites, groups and quick keys - key concepts to understanding how to program these DMA based radios
c. To program this with software, you will first need a USB-serial converted. While Scanner Master sells the USB-1, there are several other off the shelf ones that are known to work. See the
Connecting scanners via USB article for a list of examples, along with an explanation on how to use Windoze Device Manager to diagnose connection issues.
d. There are 4 packages that will program this radio - ProScan, ARC-XT, FreeScan and BcTool. Probably the most popular one is FreeScan, as its name implies, it's freeware. The User Guide for FreeScan is linked in the above article - the
DMA Scanner Software Support article at the bottom has the links for all 4 of these packages.
e. Lastly you need data. If you purchase a
premium subscription you can download data from our database (all 4 packages are compatible with the web service, although BcTool requires purchase of the Pro version for this). Alternately you can go to our
NC Forum and ask for a file. Note that FreeScan can import Butel ARC and UASD files directly.
That's a lot, I know - take it one step at a time, ask lots of questions. That's what we're here for...Mike