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[aprssig] AVRS/APRS-Alert Updates

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Fri Sep 30 15:20:19 UTC 2011


Any thoughts on band-restricted queries?  Not everyone has dual-band 
radios so we might need to find the nearest 2m or 70cm of the various 
interconnect options.

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 9/30/2011 11:09 AM, John Gorkos wrote:
> I just wanted to do a little self-promotion and give folks who are interested
> in updates on my coding projects.
>
> AVRS-
>    I'm working with the AllStar author to add AllStar nodal information along
> with the existing IRLP and EchoLink data.  This will give us a third
> interconnect network to chose from.
> The following commands are currently working when you send an APRS message to
> "AVRS":
> ? - will return the CLOSEST VOIP gateway node (either IRLP or Echolink, and
> soon allstar) to your last beaconed position
> ?E - returns the Echolink node info for the node closest to your last beaconed
> position
> ?I -  returns the IRLP node info for the node closest to your last beaconed
> position
> ?A -  returns the Allstar node info for the node closest to your last beaconed
> position (probably next week some time, doesn't work yet)
>
> ?<callsign>   - returns the CLOSEST VOIP gateway node (either IRLP or Echolink,
> and soon allstar) to<callsign's>  last beaconed position
> I hope to add ?<callsign>/[E|I|A] soon, but I've got other work to do first.
>
> LOCATE -
>    A new service added by the AVRS daemon is the "LOCATE" service.  Sending a
> message to "LOCATE" will result in the server sending you a message with a
> plain-English description of the last known position for the target.  For
> example, if I send a message from my home station (AB0OO) to "LOCATE" with "?"
> as the body, I get this:
> AVRS>APZ013,TCPIP*::AB0OO    :AB0OO heard 0d0h1m54s ago 9.75km E of Sugar
> Hill, GA{0
>
> If I send one to LOCATE with "WB4APR-3" in the body, I get this:
> AVRS>APZ013,TCPIP*::AB0OO    :Wb4APR-3 heard 0d0h7m35s ago .98km SW of
> Annapolis, MD{0
>
> I'm working on a SAT server, too, where you can send a query to "SAT" with ?
> for the params of the next satellite pass over your location, or ?[SATNAME] to
> specify a satellite.   That's a few weeks out, but I DO have working* Java
> code for satellite prediction.
>
> APRS-Alert-
>    The http://www.aprs-alert.net website is ticking along nicely, I think.  I'm
> not getting ANY feedback on it, so it works great, no one is using it, or no
> one care enough to complain.  My current project for that is to constantly
> pull and parse Common Alerting Protocol data (i.e. NWS alerts/bulletins) and
> give you the option to get a message with something like
> "AB0OO-9 has just entered an active tornado warning zone"
>
> There are still a few stability/memory issues plaguing the system.  I'm doing
> something stupid with large hashtables, and leaking memory somewhere.  I try
> to check on the system every few hours, and restart it when necessary, but
> occassionally it will go 6 hours or so without me catching it.  I can't really
> automate the restarts, because I'm collecting core dumps when it dies.
>
> Anyway, feel free to play with the APRS toys I'm making.  All the code is
> available at http://avrs.sf.net (sourceforge).  If you want to help code,
> please do.  If you want to help test, my ab0oo at arrl.net or jgorkos at gmail.com
> addresses are the best places to get messages to me.
>
> Thanks.
> John Gorkos
>
> * working code is defined as "it compiles and doesn't format my harddrive when
> I run it"
>
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