highway will pick up everything... some things will not be cops, like automatic doors at walmart, or win-dixie. Or motion detectors.
City will not pick those things up, but you run the risk of not picking up cops that use radar on same frequency as automatic doors etc.
I use highway, just because you will not pick up some cops on city (because you are blocking the lowest freq.)
Its a little more annyoing, but worth not getting a ticket for.
You'll learn on your daily route what things it beeps at everytime you pass, and learn to ignore them.
City will not pick those things up, but you run the risk of not picking up cops that use radar on same frequency as automatic doors etc.
I use highway, just because you will not pick up some cops on city (because you are blocking the lowest freq.)
Its a little more annyoing, but worth not getting a ticket for.
You'll learn on your daily route what things it beeps at everytime you pass, and learn to ignore them.