After three decades in play, the NFL is dropping the old analog system used by coaches to relay plays to their quarterbacks and instituting a new digital communication system instead. The old analog systems faced heavy interference from concerts and airlines that often interrupted vital communications, as well as poor sound quality and communication delays. The new digital network allows for an instant connection and clearer, more precise sound while also preventing any interference from outside sources
The system was tested in the pre season and Pro Bowl of last year and will be instituted in every NFL stadium permanently starting this year.
