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[aprssig] OK you APRS Pilots. Cyber-writing on-line!

Steve Noskowicz noskosteve at yahoo.com
Fri Dec 17 07:33:05 UTC 2010



Turn on your APRS in flight and write the world-readable on-line message:

  http://www.eaa.org/news/2010/2010-12-16_gps.asp

This guy had to translate from his GPS to Google.  APRS can do it directly.  Have at it...


--
 73, Steve, K9DCI   USN (Vet) MOT (Ret) Ham (Yet)

Up to date APRS Beginner Guide - updated Apr-2010
  http://K9DCI.home.comcast.net 
    Click 'APRS Beginner INFO' under Contact

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--
You know that sea of entropy we were going to drown in?  Well, upon closer examination, it turns out to be stupidity.  S. Noskowicz 1987


--- On Mon, 12/13/10, Robert Bruninga <bruninga at usna.edu> wrote:

> From: Robert Bruninga <bruninga at usna.edu>
> Subject: [aprssig] A-Star gateway repeaters?
> To: "'TAPR APRS Mailing List'" <aprssig at tapr.org>
> Date: Monday, December 13, 2010, 10:33 AM
> As you know, since 2001 or so, we
> have been striving for
> universal TEXT and VOICE ham radio connectivity using only
> callsigns.  We have made much progress on both. 
> Here are the
> partculars for the VOICE side:
> 
> * Echolink, IRLP and D-star nodes now show up on APRS
> * These and repeaters show their FREQs and Tones
> * The D710, FTM-350 and D72 can instantly QSY to them
> * We have global APRS signalling
> * Echolink, IRLP and D-star have global voice.
> 
> But for 9 years, we still have not gotten someone to write
> the
> AVRS engine to simply do the signalling and set up the
> calls.
> Though we have an excellent volunteer A0OO in Atlanta who
> has
> just started work on the AVRS engine.
> 
> But, recognizing that D-star already has the end-to-end
> callsign-to-callsign voice connectivity, maybe a short cut
> to
> universal connectivity is to simply make A-star gateways
> between
> the D-star network and the analog-end user.  
> 
> See www.aprs.org/avrs.html
> 
> The concept is simple.  On the D-star network, the
> A-star
> repeater just appears as another identical D-star
> gateway.  It
> signals using the same 4 callsign fields as do all D-star
> radios.  But on the Analog side, it is aware of all
> calls on the
> A-star repeater because it can see their APRS
> beacons.  So it
> can receive any incoming D-star-to-callsign call and pass
> the
> audio to the repeater.
> 
> For an APRS user on the analog side of the A-star repeater,
> he
> simply initiates a message TO ASTAR and the message content
> is
> simply "A*CALLSIGN" indicating that he wants to make a call
> to
> CALLSIGN.  This gets converted by the A-star repeater
> over to
> D-star signalling and the connection is made on D-star.
> 
> The beauty of this approach is that there is zero change
> to
> D-star connectivity, gateways, or callsigns or signalling.
> Everyone (including the APRS users) appears on the D-star
> network simply by callsign and appears as another D-star
> user.
> But that last mile to the APRS user is made by analog audio
> on
> the analog repeater and by APRS signalling.
> 
> If we can not be distracted by politics, this could be a
> win-win
> for everyone.  Of course the devil is in the
> details... But why
> not?
> 
> The one big advantage of the A-star end is that the CALLEE
> does
> not even need to be on the A-star repeater to receive the
> call.
> He receives the CALL message with the QSY info so he can go
> to
> the repeater to receive the call.  This is why we have
> pushed
> the QSY and TUNE buttons into all new APRS radios. 
> All along,
> this capabilty was eventually going to support
> automatic-instant
> radio QSY to receive such calls.  But until we had the
> whole
> system working, the automatic feature was premature.
> 
> Of course, please correct any errors in this vision. 
> I am sure
> I screwed something up somewhere.
> 
> Bob, WB4APR
> 
> 
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
> 


      



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