We have a CB in our coach and typically use it about twice a year, typically in a vain attempt to find out why traffic on out route is backed up a mile. About 50% of the time we get useful information (which doesn't help our situation BTW) and the rest of the time we get truckers swearing at whoever it was that caused the accident. Can't remember a time when it was actually "useful". Unless I'm stuck in traffic, it is turned off. Cell phones seem to have taken over for most of what a CB used to