Only illegal if used illegally such as violation of Federal or State law ,ie monitoring mobile phones, common carrier paging, cordless phones or scanning blocked frequencies. Of course it is also illegal to use for obtaining personal gain or committing a crime.
Many use for avoiding road crews, road conditions, traffic congestion, snow plows, tornadoes, and to monitor traffic helicopter reports.
In many areas yes unless you have an amateur radio license.
Only illegal if used illegally such as violation of Federal or State law ,ie monitoring mobile phones, common carrier paging, cordless phones or scanning blocked frequencies. Of course it is also illegal to use for obtaining personal gain or committing a crime.
Many use for avoiding road crews, road conditions, traffic congestion, snow plows, tornadoes, and to monitor traffic helicopter reports.