I haven't asked anything obscure for a while, so here goes:
How to NYPD officers refer to themselves (and other officers) on the radio? I know that LAPD units have (or had) "Adam," "Mary," "Victor" (and so on) call signs, so I'll imagine NYPD does something completely different, just because. Trouble is, I haven't been able to figure out what.
I have been able to figure out that NYPD's media office is a black hole for inquiries, so don't bother to point me to them.
The setup: in my current WIP, an NYPD patrol sargeant is trying to call his lieutenant on his handheld while my POV character listens. I already have the NYPD ten-codes. I need to know what the sargeant calls himself on the radio, and what he calls the lieutenant.
Thanks in advance.