[EAS] FCC NPRM on improving EAS just issued

[Sean Donelan]

On Thu, 4 Feb 2016, Mike McCarthy wrote:
> In addition to using the ASTC data channel for continuous confidence
> testing, the same can be done using a very slow, but exceedingly robust
> PSK method placed below the audio passband of AM stations. Specifically
> this could be used on clear channel stations and those regionals with
> large coverage areas.

Thanks, great idea and permitted under the current EAS rules,
Part 11.47 Optional use of other communications methods and systems.

Currently digital channels must still transmit the AFSK data header 
in-band, even when they use digital control. Digital channels could flip 
it around and use digital control only, e.g. SCTE, ATSC, IP, etc.  My 
suggestion is the AFSK squawks would be optional over those digital 
communication channels.

You could still use terrestrial channels as a backup daisy-chain
using the digital control information.  But you avoid the problems
that happen with in-band analog signalling.

Again, I'm not suggesting using only Internet.  But changing from
analog modem tones to digital control channels via satellite,
cable, digital tv, IPTV, etc.