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[aprssig] Interpeting packets on findu

Stan - N0YXV n0yxv at gihams.org
Fri Apr 7 18:48:10 UTC 2006


Yes it does but it leaves me with one last question (hopefully :-D). Something
must be wrong then if I see a qAR on the raw data feed on findu.com (APRS-IS
data) correct? Since my packets do show up with qAR on findu.com.

N0YXV-9>GPSMV,WIDE1-1,WIDE2-1,qAO,K0BEV:$GPRMC,153030,A,4052.5035,N,09827.3983,W,049.2,239.0,070406,006.3,E*62
N0YXV-9>GPSMV,WIDE1-1,WIDE2-1,qAR,N0YXV-1:$GPGGA,153032,4052.4894,N,09827.4292,W,1,07,1.4,591.9,M,-27.0,M,,*73

(For those of you that hate GPGGA type strings I am getting a HamHUD to fix that
problem :-D)

Quoting AE5PL Lists <HamLists at ametx.com>:

> The findU server only sees data passed to APRS-IS via other servers.  In
> other words, no one connects to the findU server to feed data (it
> connects to the APRS-IS servers).  IGate<->APRS-IS servers->findU
> database.  Therefore, if the IGate is connected to a limited feed port
> on an APRS-IS server, all of its gated packets will appear to findU as
> qAo since the server it is connected to has set the gated packets q
> construct to qAo.  Only the server that the IGate is connected to sees
> the qAR or I construct in this case.  The server then sends the packet
> to the rest of APRS-IS with the qAo construct.
>
> This effect is the same as with the I construct.  You don't see ,I on
> APRS-IS.  The servers convert it to a qAR (or qAo) construct before the
> packet gets distributed to the rest of the APRS-IS.
>
> Don't make it more complicated than it is.  IGates may only generate qAR
> or I constructs for _gated_ packets.  _No_ other constructs are
> generated by APRS clients including IGates.  _All_ other q constructs
> are generated by the _servers_ (qAI is a diagnostic construct which
> should not be used except under the direction of a server sysop).
>
> Hope this clears it up for you.
>
> 73,
>
> Pete Loveall AE5PL
> mailto:pete at ae5pl.net
>
> > -----Original Message-----
> > From: Stan - N0YXV
> > Posted At: Thursday, April 06, 2006 9:52 PM
> > Subject: RE: [aprssig] Interpeting packets on findu
> >
> > Ok I guess I'm confused then. If I understand you correctly
> > then you should never be able to see a qAO or qAo in
> > findu.com data. If the server (APRS-IS
> > Server?) changes qAR to qAo then why do I see qAO and qAo as
> > well as qAR on findu.com data strings? Please help me get unconfused.
>
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