Roy Law Enforcement is on the UCAN - Not sure if their city public works and plows are as well....
Roy contracts with Weber County and Ogden City for combined service efforts. That said Roy law enforcement is dispatched on Weber Law 4 South Cities tg 6048. Some UHP is dispactched from Weber Law 5 (Sheriff Dispatch) and some on Weber Law 6 (North Cities).
UHP in Roy - because it's so close to Davis County really needs the No. Davis Dispatch to catch most of the UHP traffic in the area. There are several car to car channels for the area which UHP uses.
Roy Fire is dispatched from tg 5600 and uses the same ops 2-10 channels with Weber and Ogden Fire Units.
What kind of equipment are you using to listen with?