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[aprssig] Delayed packets

Wes johnston wes at kd4rdb.com
Tue Jun 6 11:38:34 UTC 2006

Although it is difficult to prove, this delayed delivery of a packet seems 
to always revolve around the UI-View client.  I know that is painting with a 
broad brush, and I'm not trying to bad mouth uiview.   But check to see if 
the delayed packet's igate is from a uiview client.  Note: Just to be 
clear... the originating station can be anything... tracker, d700, other 
aprs program; the IGATE will probably be uiview.  We ended up asking the guy 
running uiview in our area to stop igating and the problem went away for us. 
Please let us know what you find.  Unfortunately, we all know the chances of 
fixing this....

----- Original Message ----- 
From: "Robbie, wa9inf" <mwrobertson at comcast.net>
To: "TAPR APRS Mailing List" <aprssig at lists.tapr.org>
Sent: Monday, June 05, 2006 11:50 PM
Subject: [aprssig] Delayed packets

>I seldom use the APRS-IS for input to my aprs station, except for NWS, and 
>for tracking my friends on their trips.
> There is a station 85 miles from the station I am tracking. Since I am 
> getting the station I am tracking from the APRS-IS via a filter, I see all 
> the I-Gate stations callsigns.. This one station constantly has my tracked 
> station jump backwards with a "delayed" packet by as much as a two minute 
> delay...
> Is this a Findu issue of Dupe checking because too short of dupe checking 
> time cycle, or, how could the I-Gate in question delay I-Gateing by as 
> much as two minutes, and have the tracked station jump backwards with his 
> delayed packet?
> This station does this on a regular basis for any mobile I have tracked 
> via the internet that gets its packet digipeated out to the Rockford area 
> from the Chicagoland area. The sysop said he does not know why his I-Gate 
> could do this.
> I do not know, and I haven't heard about a means of  an I-Gate client 
> being able to dupe check stations it is about to put on the APRS-IS, but I 
> sure can see that in this case, they all should??
> Robbie
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