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22869Re: [aprsisce] Object Paths

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  • Lynn W Deffenbaugh (Mr)
    May 10, 2013
      On 5/10/2013 1:16 PM, Robert Bruninga wrote:
      >>> I cannot see the paths used for these objects, because the APRS-IS
      >>> strips the path when heard by an IGate, but if they are anything other
      >> Please educate me Bob. How does "the APRS-IS strip the path
      >> when heard by an IGate"?
      > I thought that everything after the last-digipeated-used was stripped. So
      > that if a packet had 4 hops and was heard on the first one, that all the
      > path after the first one was stripped, then the QAR construct and callsign
      > of the IGATE was inserted?

      Not based on what I'm seeing from
      http://aprs.fi/?c=raw&call=VA3CC-14&limit=1000&view=normal (handy
      station that routine travels from Canada to El Paso criss-crossing the
      continental USA).

      2013-05-07 05:38:44 EDT: VA3CC-14>S6UT2Q,WIDE1-1,WIDE2-2,qAR,KG4LVA-1:`r60!6<0x1f>u/]"5U}Heading to El Pas
      2013-05-07 01:57:44 EDT: VA3CC-14>T0QU6P,WA4ZKO-15,WIDE1*,WIDE2-2,qAR,WA4ZKO-2:`p&<0x7f>!?ku/]"7#}Heading to El Paso
      2013-05-07 01:59:00 EDT: VA3CC-14>T0QU6P,WA4ZKO-15,WIDE1,KB9GYO-3,W8BLV,WIDE2*,qAR,W8GUC:`p&<0x7f>!?ku/]"7#}Heading to El Paso

      > Maybe things have changed... (above my overly protective rock ;-)

      Been that way for as long as I've been into APRS. I'm very familiar
      with that because I started out with path analysis from simply the
      global APRS-IS feed. At least, provided that all of the involved
      digipeaters are properly configured and WIDEn-N capable.

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