[aprssig] Object wierdness

[Lynn W. Deffenbaugh (Mr)]

Dale,

I think you can rest easy, there's nothing nefarious going on here, at 
least as far as I can tell.  Nothing is actively beaconing KD5LVH in any 
form.

The original culprit (at least, THIS month) was a packet on 8/1/2009 
that was probably KD5LVH-1's normal beacon with a single bit dropped out 
of the AX-25 header.  That created a station, not an object (no, let's 
not jump on the differentiation again) called KD5LVH.

2009H01O.LOG:2009-08-01 14:07:21 
KD5LVH>APOTC1,WIDE1-1,WIDE2-2,qAR,N5AG-5:!3149.99N\09846.05Wk/A=001677 
14.4V  Go, Teach, Make Disciples Matt. 28: 18-20

You can pull a file from 
http://ldeffenb.dnsalias.net.nyud.net/KD5LVH.txt showing all traffic 
I've observed on APRS-IS for this month mentioning the text "KD5LVH" 
anywhere.  You will see LOTS of the same beacon coming from KD5LVH-1, 
but the bogus one (without the -1) was the first.

Nothing out of the ordinary appears until 8/8 at 16:09:52 (all times 
Eastern US) when the beacons start to include HICKTN and JACKTN in their 
path.  I suspect that's due to driving in a different area and being 
picked up by different digis.  Nothing strange here.

That all continues until 8/13/2009 18:28:51 when KG4LT via K5BAR-5 
posted an object called KD5LVH.  That was beaconed twice and then the 
Kills started coming out.  However, at 18:35:32, the object itself was 
again beaconed (via N5AG-5), and then a bunch more Kills.  KD5LVH-1 
threw 2 more valid-looking beacons in the middle of that mess as well.

So, it does NOT appear that anything is currently (since 8/13/200 
23:55:23, the last kill) beaconing an object or station or anything for 
KD5LVH.  I can't speak for why aprs-fi hasn't honored the kill, but 
you'll only see it now if you specifically search for it or open your 
lookback window fairly long.

As I said at the outset, it appears that this was all an innocent event 
based on one single beacon that had a 0 SSID, possibly/probably due to 
some digi or IGate in the area (the packet would seem to indicate 
N5AG-5) running in PASSALL mode.  Either that, or the KD5LVH-1 station 
itself dropped the bit before the calculation of the FCS and actually 
sent that original packet out over the air.

Or it could have even been that the TNC/Radio was powered up with KD5LVH 
as the callsign and was taken down for reconfiguring to KD5LVH-1.  There 
IS a 37 minute gap between the KD5LVH and the first KD5LVH-1 beacon.

Enjoy the logs, and with time, all things will finally disappear!  
(provided that whatever happened doesn't happen again!)

Lynn (D) - KJ4ERJ


Dale Seaburg wrote:
>
> I am helping N5AG figure out why an object still appears on aprs.fi.  
> The object name is KD5LVH.  It currently is "owned" by N5AG-5, a 
> rf-receive-only UI-View igate station (no RF xmit).  The current 
> timestamp tells me that it gets updated about every 22 minutes from 
> N5AG-5.  Earlier this afternoon in assisting N5AG in getting rid of 
> the object, I created an object on RF using xastir with KD5LVH name.  
> Sure enough on aprs.fi I was now the new "owner".  I waited a few 
> minutes, then using xastir, I deleted the KD5LVH object.
>
> Just now N5AG and myself were discussing this on the local repeater.  
> We both saw the KD5LVH object on aprs.fi and back at it's original 
> position.  N5AG-5 was now the owner of the object.  Just now, I see 
> where the object has moved to where it was the last time I had created 
> it and I am now the new owner.  Heh?  How can that be, I haven't done 
> anything with it on xastir for several hours.  This starting to sound 
> like the Twilight Zone...
>
> Question:  Does anyone have a clue as to why UI-View with igate 
> capability would be automatically creating this object?  N5AG as not 
> very familiar with UI-View, and neither am I.  Or, is this an issue 
> with aprs.fi that we both don't understand?
>
> It could be that *I* am clueless on how objects work.  I thought I 
> knew.  Now, I'm not so sure...
>
> 73 - Dale.  KG5LT
>
>
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>