[sbe-eas] Xperi HD Radio Emergency Alerts Nationwide Test Report

[Sean Donelan]

Xperi Corp submitted a copy of its technical report evaluating the 
reception of the August 11 national EAS/WEA test alerts via HD Radio 
broadcast, ATSC broadcast, and Wireless Emergency Alerts (WEA) cellular 
service.

https://www.fcc.gov/ecfs/filing/1012182198299


According to Xperi "the HD Radio alert system performed as well as the 
other digital alert services and demonstrated significant market coverage 
and lowlatency delivery."

Xperi conclusion:
"On average, both HD Radio alerts and wireless emergency alerts were
generally received within a 20 second window when measured at the same 
location. It is important to note that precise time measurement was not 
possible in all locations and there is +/- 30 second variability in the 
times recorded with 1 minute resolution."


Xperi monitored the test in 11 markets using a variety of HD and analog 
radios (professional-grade monitors, consumer portable and car radios), 
ATSC televisions and cellular telephones.

Thank you to Xperi for collecting this data, and making it available.