[aprssig] Generating Weather Alerts from NWR

[Jason KG4WSV]

On Tue, Jun 9, 2020 at 12:09 AM Eric H. Christensen via aprssig <
aprssig at lists.tapr.org> wrote:

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> I've wanted a way to transmit weather alert packets on APRS, locally,
> without the need for an Internet connection (think disaster conditions or
> other situations where having an Internet connection is just too hard) or
> if/when the WXSVR is unavailable.
>

Me too.

The SI4707 is a combined receiver/modem for decoding SAME data. Sparkfun
used to have a breakout board but it's no longer available.  The 4707 IC is
available from Digikey (~US$18 quantity one).

There are SAME decoder circuits using the XR2211 ( e.g.
https://hackaday.com/2012/07/27/decoding-noaa-weather-radio-with-an-arduino
). I think I used the wayback machine to find the files since they are no
longer available on the original web site.

Seems that hardware solutions have fallen out of favor and the cool kids
are playing with SDR.

The solutions I've seen involving the inexpensive RTL-SDR involve sending
received audio to multimon-ng.

I hadn't heard of the EMWIN terrestrial retransmission on VHF.  How's the
coverage?

-Jason
kg4wsv
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