[aprssig] Beacon parsing help

[Robert Bruninga]

I think your thinking is correct.  These are bad packets.  No new position
report formats have been added in morethan a decade.
There are plenty and they work fine.

Bob, WB4APR

On Fri, Mar 22, 2019 at 5:14 PM Jim (List) <jim.list at stuckinthemud.org>
wrote:

> Looking for help from someone experienced in parsing ARPS beacons to assist
> in understanding differences in the position beacons I'm seeing from
> various
> stations.
>
> I'm dusting off some code I wrote a few years ago to parse APRS beacons,
> which at the time was decoding everything perfectly and was used on various
> activities.
>
> However, monitoring positional data today it's picking up beacons with
> differences that do not appear in the specification.
>
> Are these differences recent changes to the APRS spec, or are they clients
> that are just sending bad data?
>
> Monitored beacons are listed below, with a note of what I'm seeing wrong.
>
> K3NAL-1>BEACON,qAR,KK4ZWW-1:!146.64-000000z3812.05n/07623.07WrT146 R25
> NetTu
> 1930 Mtg 4th Th
> *** Appears to have a frequency, a dash and a time inserted before the Lat,
> plus the Lat letter is in lower case
>
> W9GO-3>BEACON,qAR,KC9MWQ-1:!146.91-4028.82N/08609.33W# Kokomo Repeater Club
> *** Another with what looks like a frequency and a dash before the Lat
>
>
> SV1GCB-3>APMI06,SV3ISZ-11*,SOUTH2-1,qAR,SV3IRM-10:!222024S3704.18N/02225.79E
> #QTH T=18.5C, U=13.2V, WX3in1Plus2.0
> *** Has "222024S" inserted before Lat
>
>
> WB5OER-2>APTT4,WX5II-3,WIDE1*,WIDE2-1,qAO,KG5YOV:!2847.0333N/09729.2666W#PHG
> 71304/ 13.0V
> *** Too many digits after the decimal in both Lat and Long
>
> W3EPE-3>APTT4,WIDE1-1,WIDE2-1,qAO,BEARCK:!4048.31N07531.34W#PHG51304/ W1
> *** No symbol table ID
>
> POINT6>APN382,qAR,N6MLD-1:!4702.46NS11359.W#PHG5860/ 11,22,21,33 harc's pt6
> thanks mso wx.
> *** No digits after the Long decimal
>
>
> OE3FRE-15>APNL51,TCPIP*,qAI,OE3FRE-15,SQ6KXY-2,T2DENMARK,T2HUB5,T2CAEAST:!48
> 04.66NN/01618.46EE`Radiosondetracker
> *** Lat N/S and Long E/W duplicated
>
>
> DC1SK-15>APNL51,TCPIP*,qAI,DC1SK-15,SQ6KXY-1,T2BIO,T2HUB5,T2CAEAST:!5112.018
> N/01117.042E`Radiosonde Tracker - Based on kxyTrack 1.0-1805
> *** Too many digits after the decimal in both Lat and Long
>
> DO2ATR-10>APGW1K,TCPIP*,qAC,T2KA:!5005.05N/007 0.07E#DO2ATR iGate APRS
> 432.500 JO30MU
> *** Spaces in the Long that don't conform to position ambiguity
>
>
>
> Jim, G1HUL
>
>
>
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