I gave up chasing the NFL when they went DMR, sorry
But, if based on the past and the ole Analog channels they had
a. QB Radio - Prim Freq/Alt Freq - this was assigned to the Team and did travel
b. DEF Radio - Prim Freq/Alt Freq - also assigned per team and traveled
Now seeing the Ref's with MIC's/Headsets - outside of the ole Wireless, I would not be surprised
to find that the NFL has a vast aray of wireless back to the on-site Replay booth and time clocks
Not sure if the Coaches are still hard-wired back to their boxes or now RF
Even tho the old Analog was ENC is was rather easy to determine what was what based on the possession
and then what re-appeared each week vs what was new.
Downtown before a Colts home game this year I could hear 457.8625 TG 16 CC 5 SL 1 ENC. I didn't hear it at the next game I was downtown for.
@ecps92 or
@dtscho - have either of you heard this at any games?