[aprssig] Hardened APRS?

[gerheim at cox.net]

Also look at http://www.navcen.uscg.gov/enav/ais/default.htm.  

This is a Coast Guard system that I worked on several years ago.  Unlike APRS, it's synchronous.  Every 20 ms or so, you get to send/receive a packet.  Works great for local VHF traffic.  

Full provision for packet crashes, etc... 


---- Dave Baxter <dave at emv.co.uk> wrote: 
> http://www.raytheon.com/products/stellent/groups/public/documents/conten
> t/cms01_052749.pdf
> 
> Or..  http://tinyurl.com/yscj2r  (goes to the above link)
> 
> Real Time Local Tactical Information?...
> 
> Sounds strangely familiar, "with bells on" by the sound of it...
> 
> 73.
> 
> Dave G0WBX.
> This mail has been scanned by Palmer Cook Computer Services Limited.  www.palmercook.co.uk
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--
-Al Gerheim, K1QN

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