ISPERNIllinois State Police Emergency Radio Network (155.475 Mhz)
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Inside the Crown Vic Police Interceptor squad car of Officer Tim Gramins, the dedicated ISPERN radio --the Illinois State Police Emergency Radio Network, reserved for serious emergencies--comes to life.
Prior to hearing the emergency call over ISPERN, Tim had been pondering when he could take some break time to buy his son the Star Wars game he wanted for his birthday.
This concept was pioneered in the Midwest decades ago with ISPERN, the Illinois State Police Emergency Radio Network.