[EAS] Suggestions for 2021 national EAS test

[Sean Donelan]

1. Include the year as part of the alert audio to detect stations which
re-broadcast old taped copies of past tests, instead of "live" relay of the
national test from PEP.

  - (NOT INDEPENDENTLY VERIFIED) In 2019, KCWX in San Antonio appears to 
re-broadcast a taped copy of the 2018 national test in place of the 2019 
test.  The text scroll on the video did not match the 2019 test or other 
stations.
https://www.youtube.com/watch?v=P9jiDIGMEdM

2. Collect and report on wireless/mobile service provider performance from
operators as well as the field.

  - While past FEMA and FCC national test reports have lots of information 
about EAS test results, they didn't have details about mobile telephone 
operator performance.

3. Schedule off-hour audio-level checks with national satellite distributors
(NPR, Premiere and SiriusXM), i.e. some DMO or RWT containing an audio message.

  - Because there isn't regular EAS audio, its difficult for receivers to 
set appropriate audio levels for EAS.  The last PEP test was extremely hot 
on PEP sources.