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[aprssig] Random Beacon from RC-D710?

Adam Cartwright adam.cartwright at gmail.com
Wed Aug 20 18:33:48 UTC 2008


The 5 packets that were sent 2 hours later were generated when I opened up
AGWTracker. Same call and SSID, also using the RC-D710 as a TNC.  I opened
up AGWTracker because it has a nice packet monitor, but forgot that I had
been using it days earlier to play with Objects (hence the Practice object,
etc.).  I'm not sure why it sent that empty packet, I noticed it too.

I'm still perplexed at why it would beacon like that. I've never noticed it
before, but never watched for it.  I'm going to pay a little closer
attention and see if it does such a thing again.

I'm still somewhat new to APRS, and so was wondering if it is possible that
another station could have sent a query that would cause it to beacon?

-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Keith VE7GDH
Sent: Wednesday, August 20, 2008 12:16 PM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Random Beacon from RC-D710?

Adam W0AKO wrote...

> Right now I have an RC-D710 connected to a Yaesu 857 monitoring APRS
> on my desk (dogs & cats working together).  I have the beacon set for
> manual so I have to press a button to get it to beacon.  This morning,
> I was sitting at my desk, and the unit spontaneously beaconed.
> Here are the packets it sent as looked up on oaprs.net:
>
> 05:47:54
> W0AKO-1>3Y2SQV,WIDE1-1,WIDE2-1,qAR,N0PSJ:'pRQl -/]AdamC WLNK-1=
> 05:46:35
> W0AKO-1>3Y2SQV,KC0D,WIDE1*,WIDE2-1,qAR,WB0BLV:'pRQl -/]AdamC WLNK-1=
> 05:45:36
> W0AKO-1>3Y2SQV,WIDE1-1,WIDE2-1,qAR,N0PSJ:'pRQl -/]AdamC WLNK-1=

I don't know. The last thing it did prior to this was send out an ACK,
but that was almost a day earlier. Grabbed from
http://aprs.fi/?c=raw&call=W0AKO-1

2008-08-19 15:16:12 UTC:
W0AKO-1>APK102,KC0D,WIDE1,WB0JRG-7,WIDE2*,qAR,WB0BLV::WLNK-1 :ack1199

Then the three "mystery" beacons:

2008-08-20 12:45:36 UTC:
W0AKO-1>3Y2SQV,WIDE1-1,WIDE2-1,qAR,N0PSJ:'pRQl -/]AdamC WLNK-1=
2008-08-20 12:46:35 UTC:
W0AKO-1>3Y2SQV,KC0D,WIDE1*,WIDE2-1,qAR,WB0BLV:'pRQl -/]AdamC WLNK-1=
 2008-08-20 12:47:54 UTC:
W0AKO-1>3Y2SQV,WIDE1-1,WIDE2-1,qAR,N0PSJ:'pRQl -/]AdamC WLNK-1=

and finally the five that caght my attention nearly two hours later...

2008-08-20 14:27:12 UTC:
W0AKO-1>APAGW,qAR,N0PSJ:=3923.24N/10454.92W-PHG5030WLNK-1
2008-08-20 14:27:13 UTC:
W0AKO-1>APAGW,qAR,N0PSJ:;Practice *131400z3921.35N\10448.02W;Football
Practice 7PM
2008-08-20 14:27:13 UTC:
W0AKO-1>APAGW,qAR,N0PSJ:>WLNK-1
2008-08-20 14:28:42 UTC:
W0AKO-1>APAGW,qAR,K0ANI:;Practice _ [Unsupported packet format]
2008-08-20 14:29:14 UTC:
W0AKO-1>APAGW,qAR,N0PSJ:>WLNK-1

What generated them? Is this AGWtracker under the same call-SSID as
the RC-D710 ? What happened to the object sent out at 14:28:42 without
a time or position? The beacons sent right before and after didn't 
contain
a position either.

73 es cul - Keith VE7GDH
--
"I may be lost, but I know exactly where I am!"


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