[EAS] New EAS handbook

[Botterell, Arthur@CalOES]

And there are probably receivers still in service somewhere that listen for the old carrier drop, but I'm not sure how much we should worry about those.  If weather radios are any example, the vast majority of alerting receivers in schools seem to be stored unpowered in closets.

And it's true that the average delay going through IPAWS is longer than the attention signal, but that could be fixed.  Eight seconds still represents thirty miles or more of earthquake propagation across the surface, which is unacceptable.  And broadcasters commonly use sounders that folks recognize in less than one second.  (Plus I don't think modern PLLs need eight seconds to lock up.)

Art

-----Original Message-----
From: EAS [mailto:eas-bounces at radiolists.net] On Behalf Of Richard Rudman

Hi, Art:

Some special receivers still used in schools and other locations that only respond to the attention signal.

The attention signal is still called for in Part 11.

That said, I believe the other latencies inherent in legacy EAS monitoring called for in Part 11 are a quake alert show stopper, probably more lengthy and serious than the 8 second attention signal. 

I said as much when I served on Egil Hauksson's California quake alert working group.

Regards,

Richard