[EAS] NWS CAP server
Clay Freinwald
k7cr at blarg.net
Mon Mar 7 11:16:22 CST 2022
Sean suggested -
If NOAA/NWS was going to do something for EAS broadcasters, I'd suggest a
subset its CAP feed, e.g. creating specially formatted WEA weather warning
messages for EAS broadcasters rather than the full CAP NWS feed. 99% of the
CAP NWS feed doesn't make sense for EAS broadcast.
For those of you that know me, this is something I have advocated for a very
long time.
Looking back a bit......
> > When EAS came along, it was a no-brainer to connect NWR to a monitor
input on your EAS Equipment. If for no other reason than the fact that,
perhaps, 95% of warnings are weather related.
>> Back in those days, the volume of information carried by NWR was much
less than you find today.
>> Early on, there were humans reading into microphones- Soon to be replaced
by 'Perfect Paul' and a few other 'test to voice' systems.
>> The incorporation of Event Codes augmented the old 1050 Tone
>> Now we have a system that's full of information....
>> Geo targeting, oodles of messages etc etc. (Do I dare say message
flooding?)
>> NWR has become a 'fire-hose' ....When broadcasters only want/need a
'sip'.
>> IMHO, the problem is that NWS overlooked the EAS-Box connection and the
needs of Broadcasters in their quest to enhance their system.
>> In some cases, the results have not been pretty - With broadcasters
electing to pull the plug and disconnect this vital, potentially life-saving
service.
In a number of meetings on this topic I submitted what, to me, appears to be
a simple solution -
>> Have NWS meet with the Broadcast Industry to determine what would be the
most useful in terms of -
> Message types (Life impacting)
> Duration (Shorter the better)
> Frequency of repeats or updates (in the process, stopping message
flooding)
> Come up with a broadcast specific message to be broadcast via NWR.
> etc
IMPORTANT - Pick an Event Code that would be used with this message service.
Broadcasters would then program their EAS Equipment for this new Event Code,
providing them want they want/need and let the rest of the information get
enhanced and/or repeated as much as NWS wants.
BEFORE I QUIT - A WORD ABOUT RECEIVERS -
In my experience the major of the issues with poor audio quality can be
traced to the lack of good engineering practice - on the receiving end.
>> Many use cheap receivers (Scanners etc)
>> Many do not install - outside/elevated/directional antennas
Audio from NWS does not need to be, wide bandwidth, 'Broadcast Quality'
.What it needs is -
>> Lack of background noise
>> Low in distortion
These things are achievable !!!
AND FINALLY -
We are, perhaps, spoiled with the Audio Quality that comes from an MP3 File
shipped to all via the Internet.
However, the internet is a fragile thing. Life Saving Messages should be
delivered via 'Point-Multi-Point' wireless systems.
Soap Box Off -
Thoughts anyone ?
Clay Freinwald
Past Chair of the Washington State SECC
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