Whister's EZ-Scan database, just like the Uniden Sentinel Database, should be updated from time to time on your computer. Whistler's database populates weekly from the data within the Radio Reference Database. This video describes the process on a Whistler TRX-1 scanner, but the process is the same on the TRX-2 as well as other EZ-Scan radios by Whistler, GRE, and Radio Shack. #scannerradio #policescanner #hamradio #hamr | Scanner School