Make sure you have the attenuator off,the range set to as many miles you think you are away from what you want to hear and the service types on ,the ones you want to hear (ie Fire dispatch).Did you turn on full database and pickwhat you wanted to hear and put that in your own favorites list?
Then shut off full database,if full database is on ,it will take 20 years for it to scan and hence it would appear you are receiving next to nothing.In the menu theres a management of scan lists,also turn OFF the nationwide lists.(this sounds like its on because you are getting CB channels).Remember this scanner has everything programmed into it.If I turn full database on and I dont pick 5 mile range I live in NJ,I get NY,NYC,and PA,so you do the math....I would advise you put in 5 miles or even less for your range,get me?Make sure you update the database and the firmware,you do this by taking the microsd card out and putting it into the computer using Uniden Sentinel.Report back,tried to pm you but I cant.Dont get frustrated,its very different from a 396XT ,it takes some "playing with" to get it right,I wanted to put mine through a wall the first few days!Keep calm and program on.