How does the NFL control the use of the helmet radio signal calls?
jane asked:
NFL quarterbacks and now selected defensive players have a radio receiver imbedded in their helmets for hearing play calls from the sidelines.
What precautions does the league have to prevent someone using a frequency scanner from listening in and relaying the called play to the other team?
And, what precautions does the league have to prevent someone in the stands, or even someone miles away, from flooding the frequencies used for the communications with a much stronger signal?
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Posted in Football (American) | 
Tags: Control, Frequency Scanner, Helmet Radio, Nfl Quarterbacks, Radio Signal, Sidelines
im pretty sure i read or heard this somewhere…..there is a main official in the booth to make sure frequenceys arent being tampered with….also ive hear that any communication to a player on the field CUTS OUT COMPLETELY with 10 seconds left on a play clock….