A spokeswoman for the city's Office of Emergency Management and Communications said in an email that an "unauthorized user" appears to have made the interrupting transmission.
"We have reviewed the audio for this incident and we do not believe that the comments were made through the use of a City-programmed radio as the audio in question lacks identifying characteristics of an official police radio," said OEMC spokeswoman Melissa Stratton, in an email.
The offending transmission didn't have the MDC1200 data burst that the other transmissions had. Believing it wasn't a CPD radio is certainly good news for the city, though I expect plenty will still milk the incident for all they unfortunately can in terms of CPD being racist, etc.
BUT...
Had that police channel not been sounding like a ghetto party-line, that comment would not have been made. I'll never forget being in Chicago about 20 years ago now & listening to CPD. I was utterly amazed at how unprofessional their use of radio was -- the dispatchers throwing in comments like "Be extra careful ###, I got a bad feeling about this call," etc. That sort of atmosphere breeds a culture where people -- officers, dispatchers, and yes, even jackasses with illegally transmitting on public safety freqs all find it perfect reasonable to throw-in their comments.
I expect some of you people that have been listening to such BS over the years get used to it, and will maybe defend it as them blowing-off some steam, but the reality is it's unprofessional, and the radio-version of what's called 'broken-window' syndrome.
To the FCC, a police dispatcher saying "Why ya'll up in my kool-aid?" on a frequency/system the FCC licensed for public safety communications is most likely also an *illegal* transmission. If Chicago public safety isn't going to be professional over the airwaves, it's no-wonder a local radio-geek --or an officer-- is going to join the free-for-all BS with their commentary,