[aprssig] What is Generating These Packets

Lee Bengston lee.bengston at gmail.com
Fri Dec 23 00:36:33 EST 2011

My post of the issues generated a fair amount of discussion in the
APRX google group.  First the original packet example:


The source call of APRSIS is a bug that was fixed previously, so as
others already suggested, the root of this problem is people running
old versions of APRX.  Evidently version 2.0 from Aug 2010 doesn't
have this problem, so the fix was either in that release or an earlier

Next the invalid TOCALL such as "RXTLM-2" below:


The author of APRX, OH2MQK, acknowledged that this issue still needs
to be fixed.

The other problems associated with the KD8IAY/KD8IAY-1 station(s)
appear to be configuration issues.

Hopefully the tocall problem with telemetry can be fixed soon, but of
course the users will need to upgrade.

Lee - k5DAT

On Wed, Dec 21, 2011 at 12:11 PM, Pete Loveall AE5PL Lists
<hamlists at ametx.com> wrote:
> From what you show, it appears APRX has multiple issues (showing qAR for self-generated packets, using APRSIS as a "from" station instead of the login, using RXTLM-SSID instead of APRXnn for the TOCALL, using TCPIP instead of TCPIP* in the path).  I am not a user of that software nor do I wish to join their group to post but if a group member monitors this list, they might want to let the author(s) know about these issues.
> 73,
> Pete Loveall AE5PL
> pete at ae5pl dot net
>> -----Original Message-----
>> From: Lee Bengston
>> Sent: Wednesday, December 21, 2011 11:01 AM
>> They appear to be telemetry packets generated by APRX.
>> http://ham.zmailer.org/oh2mqk/aprx/
>> Below are a few packets from findu.com.
>> KD8IAY-1>APRX22,qAR,KD8IAY:!4147.06NT08614.67W&Ubuntu / GE MVS / T2
>> /
>> Aprx v2.02 I-gate
>> KD8IAY-1>APOT21,WIDE1-1,WIDE2-1,qAR,KD8IAY:!/9Btc8`C6# st 12.9V 37F
>> KD8IAY-1>RXTLM-2,TCPIP,qAR,KD8IAY:T#117,0.3,1.4,2.0,2.0,6.0,00000000
>> KD8IAY-1>APRX22,qAR,KD8IAY:!4147.06NT08614.67W&Ubuntu / GE MVS / T2
>> /
>> Aprx v2.02 I-gate
>> :EQNS.0,0.005,0,0,0.005,0,0,1,0,0,1,0,0,1,0
>> KD8IAY-1>RXTLM-2,TCPIP,qAR,KD8IAY:T#334,0.4,0.3,1.0,1.0,1.0,00000000
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