[EAS] Part 11 / Local CAP Relay Networks

[Eric Adler]

At that point, why not make CAP satellite distribution feeds public as well, just happen to place them on the same bird as the networks?  In this way, locales that don't have one of the major networks and/or remote locations can still get the content from distributed means.  

Also, if a few networks can do it, then we can all receive each others' feeds (each network affiliate would retransmit in their DTV mux) and have some smart IP routing in-place (you can get a highly configurable router for < $100 -- I use the mikrotik routerboard products here for a lot of things) so that they all reach the CAP/EAS box and the CAP/EAS box can check message/event IDs to see if it is a duplicate or not (sorry, I'm not fully up-to-date on CAP/IPAWS standards but I'd hope each message has a globally unique identifier [GUID] that follows it along all paths, including EAS).  

Eric Adler
WSKG Public Broadcasting
Binghamton, NY
eadler at wskg.org

-----Original Message-----
From: eas-bounces at radiolists.net [mailto:eas-bounces at radiolists.net] On Behalf Of Don Heppelmann

David, 

This is defiantly doable.

Broadcast
One or two ATSC stations could be the regional relay, and in exchange for the use of their bandwidth, ALL the region broadcaster's and cable operators would pay the cost for the needed hardware and other ongoing misc. costs to deploy and broadcast the FEMA EAS CAP stream.

Network(s)
Perhaps there is a television network (or two) that would embed/Mux the FEMA IPAWS Open CAP stream onto their network transports so regional EAS relay ATSC broadcaster's can receive and Mux onto their emission transport.

Don Heppelmann
Twin Cities Public TV

-----Original Message-----
From: eas-bounces at radiolists.net [mailto:eas-bounces at radiolists.net] On Behalf Of David Ostmo

I am still under the opinion that existing television stations should serve as the CAP relay network.  The CAP data can exist in the background of a DTV signal.  The reinforced towers and transmitters are already in place.  Signal coverage is well established  in most areas.  The approach does not require additional licensing or spectrum.  It does not require the development of new technology.  Am I missing anything?

David Ostmo

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