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[aprssig] Multiple SSID's from one station, with the New N Paradigm.

Dave Baxter Dave at emv.co.uk
Sat Dec 13 21:31:04 UTC 2008

Belatedly cross posted from the APRS-UK list...
Folowing the recent IARU R1 meeting in Cavtat, and the resultining recomendation that Region 1 adopts the Newn-N paradigm, several people in the UK APRS network have been investigating how best to adopt it.  Notwithstanding that many think it's not nesesary to change from RELAY,TRACEn-N to WIDE1-1,WIDEn-N etc, for many reasons, not least this following behaviour seen on air..
2008-12-08 14:36:12 UTC: G7III-15>APRS,MB7UW*,WIDE5-3,qAR,G0CGL-12:!5124.12N/00046.23W& Test Dup SSID: W5-5
2008-12-08 14:36:21 UTC: G7III-14>APRS,MB7UW*,WIDE5-3,qAR,G0WKM-2:!5124.12N/00046.23W& Test Dup SSID: W5-5
2008-12-08 14:36:25 UTC: G7III-13>APRS,MB7UW*,WIDE5-2,qAR,G0WKM-2:!5124.12N/00046.23W& Test Dup SSID: W5-5
2008-12-08 14:36:36 UTC: G7III-12>APRS,MB7UW*,WIDE5-1,qAR,G0WKM-2:!5124.12N/00046.23W& Test Dup SSID: W5-5
Note the decrementing SSID of G7III, this is caused by a digi somewhere in the network, but is proving illusive to track down.  G7III of course only used one SSID, -15.
It is (again I'm told) one of the main reasons why the UK (well, England at least) has stuck with RELAY,TRACEn-N as it doesnt happen with that path method.
Someone has said this...   "...there is a D700 somewhere with UIFLOOD set with NOID enabled."
Is this the case, or is there something else hapening?
Was this odd behaviour seen in the USA when the New WIDEn-N system was first rolled out?   If so, how did you track it down and fix it?
73 etc.
Dave G0WBX (at home after a long trip for work)

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