So we have radar detectors that detect when a radar signal is within range and the correct frequency. Is there a "scanner detector"? A scanner that will beep/alert when a police frequencey/channel is near (a mile away) or something? I think it would help with I/O and stuff. Like if ur cruzing and u get an alert that a officer has a radio unit in their car, you could slow down to verify if there is a threat? I saw someone do it with GSP?
And what percent of county/city/state agencys are incripted????