[EAS] California WEA

[Sean Donelan]

On Wed, 9 Dec 2020, Adrienne Abbott wrote:
> California officials gave local officials a heads up about the WEA on 
> the latest COVID lockdown. The statewide WEA is being called "the 
> largest WEA message ever issued". Even with the tenth of a mile limit, 
> the WEA showed up in Nevada.

Just a reminder, in spite of the press releases from the FCC chairman, the 
WEA tenth of a mile geo-location only works in NEW/recent cellular phones 
and messages which include it.

Old phones (i.e. most cell phones) still use tower-based alerting.  Just 
because an alerting authority draws a pretty line on their computer, 
doesn't mean devices in the field use it.

Device-based Geo-Targeting.  Notice its called "device-based."

Sorry, I know its not you.  But the FCC press releases have mis-lead a lot 
of emergency officials.