What are radio scanners used for?

Related questions

1. Is FM radio in stereo?
2. How far can an AM radio signal travel?
3. What RDS means?
4. What does the scan button do on a radio?
5. What is Loc radio?
6. How do I find my radio serial number?
7. What is a local radio station?
8. What's the difference between AM radio and FM radio?
9. What does St mean in a car?
10. How does RDS radio work?

Tags

1. #quickly
2. #calls
3. #scans
4. #police
5. #allow
6. #thousands
7. #checks
8. #scanner
9. #transmissions
10. #occur
11. #short
12. #channels
13. #radios
14. #receiver
15. #radio
16. #listen
17. #others