It's an HTTP+Ogg+Opus stream from my BCD536HP. It's scanning the local P25 trunked radio system (Durham police, fire, EMS, ops, etc.).
P.S. As I write this I'm hearing chatter about responding to an airplane crash... no more details yet.
My radio has a WiFi interface, but it's weird and unreliable (only supports RTSP, 401s if the requested host isn't its internal IP, crashes after 12 hours, etc). So I just use a short analog audio cable instead.