[aprssig] Duplicates evident on aprs.fi

Rob VK6UFO at multiline.com.au
Sat Jun 25 20:42:53 EDT 2011


We are seeing a lot of duplicate packets for our area on aprs.fi to the 
point where it is warning "This station is transmitting packets at a 
high rate, which can cause congestion in the APRS network." I believe 
that duplicate packets are dealt with in the APRS-IS network (?) so the 
problem probably doesn't lie with an igate. Is this the correct place to 
report the problem and if not, where should I go. Here are the last few 
reports of my mobile tracker from aprs.fi raw:. Just about every packet 
has a duplicate and I've highlighted an obvious pair.

2011-06-25 09:06:38 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^\BEkisoOwVG/A=000054 
14.0V  17C
2011-06-25 09:06:39 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^\BEkisoOwVG/A=000054 
14.0V  17C
2011-06-25 09:07:10 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^\#UkivSO$VG/A=000042 
14.0V  17C
2011-06-25 09:07:10 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^\#UkivSO$VG/A=000042 
14.0V  17C
2011-06-25 09:07:30 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^[gZkixlOzVG/A=000045 
14.0V  17C
2011-06-25 09:07:31 UTC: 
VK6UFO-9>APOT21,VK6RTH-3*,WIDE1*,WIDE2-1,qAR,VK6RX-1:!\^[gZkixlOzVG/A=000045 
14.0V  17C
_2011-06-25 09:07:49 UTC: 
VK6UFO-9>APOT21,VK6GHZ-1,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^[V-kittOrVG/A=000040 
14.0V  17C
2011-06-25 09:07:49 UTC: 
VK6UFO-9>APOT21,VK6GHZ-1*,WIDE1*,WIDE2-1,qAR,VK6RX-1:!\^[V-kittOrVG/A=000040 
14.0V  17C_
2011-06-25 09:08:19 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:>HARG.ORG.AU
2011-06-25 09:09:20 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^ZgwkiRoOpUG/A=000020 
14.0V  17C
2011-06-25 09:09:20 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^ZgwkiRoOpUG/A=000020 
14.0V  17C
2011-06-25 09:09:53 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^ZQ_kiDMOoUG/A=000006 
14.1V  17C
2011-06-25 09:09:53 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^ZQ_kiDMOoUG/A=000006 
14.1V  17C
2011-06-25 09:10:12 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^ZB4ki=0OsUG/A=000041 
14.0V  17C
2011-06-25 09:10:13 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^ZB4ki=0OsUG/A=000041 
14.0V  17C
2011-06-25 09:10:33 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^Z.gki8ROwUG/A=000033 
14.0V  17C
2011-06-25 09:10:34 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Z.gki8ROwUG/A=000033 
14.0V  17C
2011-06-25 09:10:55 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^Yt$ki7*O!UG/A=000030 
14.0V  16C
2011-06-25 09:10:55 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Yt$ki7*O!UG/A=000030 
14.0V  16C
2011-06-25 09:12:18 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^Y\jki7OOyIG/A=000085 
14.0V  17C
2011-06-25 09:12:19 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Y\jki7OOyIG/A=000085 
14.0V  17C
2011-06-25 09:12:48 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^YC#ki45OuUG/A=000054 
14.0V  17C
2011-06-25 09:13:30 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^Y$Nki*sOwRG/A=000065 
14.0V  17C
2011-06-25 09:13:30 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Y$Nki*sOwRG/A=000065 
14.0V  17C
2011-06-25 09:14:07 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:>HARG.ORG.AU
2011-06-25 09:14:07 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^Xakki,\O#SG/A=000076 
14.0V  16C
2011-06-25 09:14:09 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Xakki,\O#SG/A=000076 
14.0V  16C
2011-06-25 09:14:39 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^XF6ki,/OyOG/A=000068 
14.0V  17C
2011-06-25 09:14:40 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^XF6ki,/OyOG/A=000068 
14.0V  17C
2011-06-25 09:16:04 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^X:kki+2OxKG/A=000081 
14.0V  17C
2011-06-25 09:16:06 UTC: 
VK6UFO-9>APOT21,VK6RTH-3*,WIDE1*,WIDE2-1,qAR,VK6RX-1:!\^X:kki+2OxKG/A=000081 
14.0V  17C
2011-06-25 09:16:46 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^Wu8ki(SOwRG/A=000080 
14.0V  17C
2011-06-25 09:16:47 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Wu8ki(SOwRG/A=000080 
14.0V  17C
2011-06-25 09:17:04 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^WjPki!'OeUG/A=000088 
14.0V  17C
2011-06-25 09:17:05 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^WjPki!'OeUG/A=000088 
14.0V  17C
2011-06-25 09:17:37 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^WpYkhivOaUG/A=000088 
14.0V  17C
2011-06-25 09:17:38 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^WpYkhivOaUG/A=000088 
14.0V  17C
2011-06-25 09:17:58 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^Wr at kh]SOeTG/A=000103 
14.0V  17C
2011-06-25 09:17:59 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^Wr at kh]SOeTG/A=000103 
14.0V  17C
2011-06-25 09:18:40 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^W[_khSSOuQG/A=000083 
14.0V  17C
2011-06-25 09:18:42 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^W[_khSSOuQG/A=000083 
14.0V  17C
2011-06-25 09:19:31 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^W at QkhRyO&EG/A=000091 
14.0V  17C
2011-06-25 09:19:32 UTC: 
VK6UFO-9>APOT21,VK6RTH-3*,WIDE1*,WIDE2-1,qAR,VK6RX-1:!\^W at QkhRyO&EG/A=000091 
14.0V  17C
2011-06-25 09:20:01 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^WBxkh\,O?PG/A=000096 
14.0V  18C
2011-06-25 09:20:02 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^WBxkh\,O?PG/A=000096 
14.0V  18C
2011-06-25 09:20:24 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:>HARG.ORG.AU
2011-06-25 09:20:26 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6EX-1:!\^WGGkhc?O0DG/A=000086 
13.7V  17C
2011-06-25 09:20:26 UTC: 
VK6UFO-9>APOT21,VK6RTH-3,WIDE1*,WIDE2-1,qAR,VK6HGR:!\^WGGkhc?O0DG/A=000086 
13.7V  17C
2011-06-25 09:20:50 UTC: 
VK6UFO-9>APOT21,WIDE1-1,WIDE2-1,qAR,VK6EX-1:!\^W8GkhcaO#OG/A=000091 
14.0V  17C
2011-06-25 09:20:51 UTC: 
VK6UFO-9>APOT21,VK6RTH-3*,WIDE1*,WIDE2-1,qAR,VK6RX-1:!\^W8GkhcaO#OG/A=000091 
14.0V  17C

-- 
Rob, VK6UFO, VK6RN

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