[aprssig] EMERGENCY test...
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Fri Aug 8 10:51:03 EDT 2014
VE7HMW-9's emergency beacons are showing up at aprs.fi's raw packets.
However, they're flagged with issues, so they aren't processed into his
database.
I suspect that there's a digipeater or IGate in the area that has
PASSALL enabled and is gating invalid packets to the APRS-IS causing the
Mic-E bits (mbits: below) to be 000.
2014-08-07 19:36:26 EDT: *VE7HMW-9
<http://aprs.fi/?c=raw&limit=&call=VE7HMW-9>*>461QTP,VE7DID*
<http://aprs.fi/?c=raw&limit=&call=VE7DID>,WIDE3-3,qAR,UBC39
<http://aprs.fi/?c=raw&limit=&call=UBC39>:`2Txm"Q>/]"3m}2004 BUICK REGAL= *[Rate
limited (< 5 sec)]*
type: location
format: mice
srccallsign: VE7HMW-9
dstcallsign: 461QTP
latitude: 46.19 °
longitude: -122.9486666666667 °
course: 253 °
speed: 18.52 km/h
altitude: -5 m
symboltable: /
symbolcode: >
mbits: 000
posresolution: 18.52 m
posambiguity: 0
comment: ]2004 BUICK REGAL=
2014-08-07 19:38:26 EDT: *VE7HMW-9
<http://aprs.fi/?c=raw&limit=&call=VE7HMW-9>*>461QTP,VE7DID*
<http://aprs.fi/?c=raw&limit=&call=VE7DID>,WIDE3-2,qAR,VA7REF-1
<http://aprs.fi/?c=raw&limit=&call=VA7REF-1>:`2Txm"Q>/]"3m}2004 BUICK REGAL=
*[Location changes too fast (adaptive limit)]*
type: location
format: mice
srccallsign: VE7HMW-9
dstcallsign: 461QTP
latitude: 46.19 °
longitude: -122.9486666666667 °
course: 253 °
speed: 18.52 km/h
altitude: -5 m
symboltable: /
symbolcode: >
mbits: 000
posresolution: 18.52 m
posambiguity: 0
comment: ]2004 BUICK REGAL=
And then there's this interestingly corrupted packet:
2014-08-07 19:38:28 EDT: *VE7HMW-9
<http://aprs.fi/?c=raw&limit=&call=VE7HMW-9>*>4Y1PYW,WIDE1-1,qAR,VA7REF-1 <http://aprs.fi/?c=raw&limit=&call=VA7REF-1>:EGAL=
*[Unsupported packet format]*
srccallsign: VE7HMW-9
dstcallsign: 4Y1PYW
So it appears to this outside observer that there's something going on
between the RF environment and the APRS-IS. But if you actually
received the Emergency packets on your radio (and it wasn't a
third-party packet), then it would seem to indicate a bad digipeat
rather than a bad Igate.
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
On 8/8/2014 10:31 AM, Keith VE7GDH wrote:
> A few times over the last week or so, a few emergency beacons have
> been received from a VE7HMW-9, but the operator says he didn't have it
> set to emergency. The emergency beacon was decoded by an FTM-400D and
> also showed at findu.com, but not on aprs.fi.
>
> For a test, I will be sending several emergency beacons from VE7GDH-9
> in a few minutes with a status text of...
>
> "This is a test - NOT an emergency."
>
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