I have heard PD units on COPS tv show say "Cancel the beeper". What does that mean? I mainly hear it after car chases. I havent ever heard it before in Michigan, and I'm guessing its specific to certian areas.
During a hot call, a dispatcher may restrict traffic on a channel by adding a tone every 10 -15 seconds. If the cop is not on the call, the stay off the air. Cancel the beeper, or open the air are common ways to cancel the channel marker tone.
We use that saying when an officer or deputy has asked for the air to be held or secured from general use. That means that everything over the air is being recorded "LIVE". The beeper is the sound you hear every 10-15 seconds. When the officer/deputy does not need it or want it he/she will say "Cancell the Beeper".
Robert L. Nitsch
Communications Director
Wisconsin Emergency Services Group
And the reason a 'beeper' is used is two-fold. One - hearing a beep every few seconds lets the crews on that channel know that something 'big' is up. Two - logging recorders typically record x seconds of audio each time it's triggered. So the beep is set to go off slightly less than 'x' seconds.. that way the logger stays active continuously.