I've got a cop radar detector to know when a speed radar is deployed.
However, if the police officer doesn't have the radar on, it doesn't really help.
I understand there are police scanners that allow you to eavesdrop on transmission, while this is cool it takes a level of control and shifting as well as listening to get information that does not indicate current position.
I am wondering if there is an instrument out there, that determiens the strength of a signal of a police radio, and estimates proximity and dirrection and relays that to you.
Such as, "Police Radio Approximately 50-100 feet NorthWest!" being transmitted in your car.
What do you think, is there a devise like this?