A Quick Tip

Radar Detector Range in Hilly Areas
Hilly areas are tricky for radar detection. Because of the frequent increases and decreases in elevation, and the nature of radar waves, picking-up strong signals is more difficult. Also, police have learned areas in the hills that are shielded from advanced detector warning, adding to the problem.
The best advice is to keep things slower in the hills. Not only is it safer, but weaker signals frequently indicate the speed trap is closer than you might think.
That's why radar detectors boast incredible range. In wide-open road areas, a cool 7-8 mile advanced warning of police radar is possible. Urban areas can provide less warning, though a 2.5 mile heads-up is common. With that much time to hit the brakes and look innocent, avoiding hefty traffic fines becomes a cinch.
Check First

Are radar detectors legal in my area?
The best way to be sure radar detectors are legal in your area is to browse your state's department of motor vehicles website. Or, you can call local law enforcement and ask about specific laws for your area. If they are illegal in your area, it's best not to use a radar detector. You will probably get caught, and the penalties are stiff.
- Make sure radar detectors are legal in your area before picking one up