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[aprssig] EchoLink and other Local Info - Future?

Stephen H. Smith wa8lmf2 at aol.com
Thu Jul 23 17:18:17 UTC 2009

Futher on this issue,  here is a picture that shows the range of options 
in the AGWpe KISS port management capabilities. 

This screen shot shows the AGW TNC setting dialog. One of four instances 
of UIview running on this PC shows in the background.    Note that the 
pop-down list box is showing only about HALF the range of TNCs 
explicitly supported by AGWpe. In this instance, AGW is splitting the 
VHF and HF streams from a classic original KAM TNC on physical COM2 into 
separate logical ports for use by different programs.

      <http://wa8lmf.net/aprs/AGWpe_TNC_Setup.gif>     [220KB  XGA-sized 
GIF image]

Stephen H. Smith wrote:
> Robert Bruninga wrote:
>>> As far as this EchoLink objects project, we have arrived at a
>>> show-stopper (traffic load).  To me, that simply offers a
>>> challenge.  I see two possible approaches?:
>>> 1) A widget that runs in parallel with a local Igate, but that
>>> can share the TNC.  It gets the Echolink status periodically
>>> just for the local object, and then it beaons that object ONLY
>>> to its own path (independent of the Igate's path).
>>> 2) An upgrade to the APRS-IS that provides regional feeds, so
>>> that Lynn's engine can inject only regional info into regional
>>> feeds.
> Again, if you can bend the ear of Echolink's developer, this issue can 
> be solved very easily:
>       Support for the AGW Packet Engine in Echolink's APRS reporting 
> module.  
> Currently, Echolink supports the RF announcing mode either by:
> 1)   Using a dedicated radio & TNC
> 2)   Communicating directly with UIview and "piggybacking" on the 
> radio and TNC UIview is controlling.
> Unfortunately, the linkage only works with UIview if it is running in 
> the classic TNC command interface mode.   You can't run UIview in the 
> KISS mode (where it must operate to function as a digipeater and igate). 
> The AGW Packet Engine is far far more than just a soundcard "software 
> TNC".  It is a sophisticated data distributer that can share serial 
> streams from up to 16 hardware or software TNCs with a nearly 
> unlimited number of packet-data-using applications.  It can separate 
> the VHF and HF data streams received on a single physical serial port 
> from a KAM to multiple data streams on multiple logical ports. 
> It interfaces to physical (hardware) TNCs on serial ports via a KISS 
> interface A pull-down list box provides explicit support for every 
> flavor of Kantronics, AEA/TIMEwave, TNC2 and Paccom devices, along 
> with a number of TNCs only widely offered in Europe, and of course 
> sound cards.  It can deliver these outputs either via Windows DDE 
> (dynamic data exchange) to programs on the same PC, or via TCP/IP to 
> either local or distant PCs.
> Digital types can think of AGWpe as a kind of "router" or "switch" for 
> KISS serial data.  Analog types can liken it to a "distribution amp" 
> for serial ports. 
> Note that each application talking back to the AGWpe interface uses 
> it's own callsign, SSID and most importantly PATH. For example, UIview 
> might be beaconing on a WIDE1-1 path, Echolink could be beaconing on a 
> direct-only path, and UI Events beaconing on a one-hop path of a 
> specific digi's eplicit callsign -- all on the same radio/TNC setup!
> If Echolink would join the ranks of applications that support the 
> AGWpe DDE interface, it could effortlessly share TNCs  --ALREADY BEING 
> USED--  by UIview, APRSplus, WinAPRS, AGW Tracker, UI Events, UI 
> Traffic Manager, WinPack, APRS Emergency, etc.     
> Or for non-APRS Echolink operators operating on UHF, AGWpe operating 
> in the sound card TNC mode would let you recycle any old 2M radio on 
> 144.39 for local APRS status beacons with no TNC at all required.  
> ------------------------------------------------------------------------
> --
> Stephen H. Smith    wa8lmf (at) aol.com
> EchoLink Node:      WA8LMF  or 14400    [Think bottom of the 2M band]
> Skype:        WA8LMF
> Home Page:          http://wa8lmf.net
> JavAPRS Filter Port 14580 Guide
>   http://wa8lmf.net/aprs/JAVaprsFilters.htm
> "APRS 101"  Explanation of APRS Path Selection & Digipeating
>   http://wa8lmf.net/DigiPaths
> Updated "Rev H" APRS            http://wa8lmf.net/aprs
> Symbols Set for UI-View,
> UIpoint and APRSplus:
> ------------------------------------------------------------------------
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> aprssig at tapr.org
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