[aprssig] Duplicate Packet - Sending too soon to CQSRVR
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Tue Jan 12 17:21:30 EST 2010
Cross-posted to javaprssrvr to see if there are any comments on this
duplicated message in APRS-IS...
Actually, if you look at your Raw packets:
2010-01-12 21:30:54 UTC: *VK2JNG-9
<http://aprs.fi/?c=raw&limit=&call=VK2JNG-9>*>APK102,VK2BTQ-1*
<http://aprs.fi/?c=raw&limit=&call=VK2BTQ-1>,WIDE2-1,qAR,VK2IN-5
<http://aprs.fi/?c=raw&limit=&call=VK2IN-5>::CQSRVR :CQ CQ Gerard
EL#63666 147.050MHz{58
2010-01-12 21:30:54 UTC: *VK2JNG-9
<http://aprs.fi/?c=raw&limit=&call=VK2JNG-9>*>APJIC1,qAR,CQSRVR::KJ4ERJ-12:CQ
CQ Gerard EL#63666 147.050MHz *[Duplicate message content]*
2010-01-12 21:30:54 UTC: *VK2JNG-9
<http://aprs.fi/?c=raw&limit=&call=VK2JNG-9>*>APJIC1,qAR,CQSRVR::WB4APR-9
:CQ CQ Gerard EL#63666 147.050MHz *[Duplicate message content]*
2010-01-12 21:30:55 UTC: *VK2JNG-9
<http://aprs.fi/?c=raw&limit=&call=VK2JNG-9>*>APK102,VK2BTQ-1
<http://aprs.fi/?c=raw&limit=&call=VK2BTQ-1>,VK2RAG-1
<http://aprs.fi/?c=raw&limit=&call=VK2RAG-1>,WIDE2*,qAR,VK2ZEN-5
<http://aprs.fi/?c=raw&limit=&call=VK2ZEN-5>::CQSRVR :CQ CQ Gerard
EL#63666 147.050MHz{58 *[Duplicate message ID]*
The problem, I believe, is that final packet. VK2IN-5 gated your first
packet by way of VK2BTQ-1. That's the one that CQSRVR acted on sending
out the two notifications to KJ4ERJ-12 (coincidentally me) and WB4APR-9
(Bob).
The final packet gated by VK2ZEN-5 should not be showing up at all
assuming that every server in the APRS-IS chain is using a 30 second
dupe check. I've noticed that if multiple IGates hear a packet near
simultaneously, a duplicate like this can actually show up in the raw
APRS-IS logs. The aprs.fi Messages screen suppresses these duplicates
so you have to look at Raw to see them.
Lynn (D) - KJ4ERJ
JandG wrote:
> This is what I see after sending my message to CQSRVR:
>
>
> 2010-01-12 21:30:54 UTC: *VK2JNG-9
> <http://aprs.fi/?c=message&limit=&call=VK2JNG-9>*>*CQSRVR
> <http://aprs.fi/?c=message&limit=&call=CQSRVR>*: CQ CQ Gerard EL#63666
> 147.050MHz
> 2010-01-12 21:30:54 UTC: *CQSRVR
> <http://aprs.fi/?c=message&limit=&call=CQSRVR>*>*VK2JNG-9
> <http://aprs.fi/?c=message&limit=&call=VK2JNG-9>*: 2 messages sent to CQ
> 2010-01-12 21:30:55 UTC: *CQSRVR
> <http://aprs.fi/?c=message&limit=&call=CQSRVR>*>*VK2JNG-9
> <http://aprs.fi/?c=message&limit=&call=VK2JNG-9>*: Sending too soon to CQ
>
> When you do a message via the Kenwood TM-D710 it sends it 5 times at
> approx 1 minute intervals unless an acknowledgement has been received
> back.
>
> Could that be causing the message : Sending too soon to CQ?????
>
> Gerard
> VK2JNG
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