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<div>Hmm... like maybe someone has too short of a TxDelay setting, such that his oscillators are still slewing when he (or a digi) is transmitting? </div>
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<div style="font-size:9px;color:#575757">Sent from my Verizon Wireless 4G LTE smartphone</div>
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-------- Original message --------<br>
From: "Lynn W. Deffenbaugh (Mr)" <ldeffenb@homeside.to> <br>
Date:08/08/2014 12:07 (GMT-05:00) <br>
To: TAPR APRS Mailing List <aprssig@tapr.org> <br>
Cc: <br>
Subject: Re: [aprssig] EMERGENCY test... <br>
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<div style="background-color:#FFFFFF">It's only a single-bit hit between his normal mbits: 010 and mbits: 000 for Emergency.<br>
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I also looked at the lat/lons and given the number of warnings coming out of aprs.fi, I decided that it was a wasted effort.<br>
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Since the ToCall is the first thing transmitted, it even may be that he doesn't have a long enough preamble to satisfy something along the RF chain resulting in some garbling of the early bits of the transmission.<br>
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Only ears on the air in his vicinity will truly answer our curiosities.<br>
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Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32<br>
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<div class="x_moz-cite-prefix">On 8/8/2014 11:51 AM, andrewemt wrote:<br>
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<div>It is interesting that VE7HMW-9's packet tocall (destination) callsign starts with all digits instead of letters, indicating the Mic-E status bits are all zero. So, either someone is "fixing" his tocall (maybe because it doesn't look like a valid callsign,
though this is worse), or he actually is sending emergency. His latitude does look a little south for a Canadian, but not unreasonably so for a mobile, considering where his home fixed station is. You'd think that if those three bits got mangled then more
would have been mangled to give him a totally ludicrous position instead of one relatively close to home.</div>
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<div>Just my $.02.</div>
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<div>Andrew, KA2DDO</div>
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<div style="font-size:9px; color:#575757">Sent from my Verizon Wireless 4G LTE smartphone</div>
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-------- Original message --------<br>
From: "Lynn W. Deffenbaugh (Mr)" <a class="x_moz-txt-link-rfc2396E" href="mailto:ldeffenb@homeside.to">
<ldeffenb@homeside.to></a> <br>
Date:08/08/2014 10:51 (GMT-05:00) <br>
To: TAPR APRS Mailing List <a class="x_moz-txt-link-rfc2396E" href="mailto:aprssig@tapr.org">
<aprssig@tapr.org></a> <br>
Cc: <br>
Subject: Re: [aprssig] EMERGENCY test... <br>
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<div style="background-color:#FFFFFF">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.<br>
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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.<br>
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<span class="x_x_raw_line_err">2014-08-07 19:36:26 EDT: <b><a href="http://aprs.fi/?c=raw&limit=&call=VE7HMW-9">VE7HMW-9</a></b>>461QTP,<a href="http://aprs.fi/?c=raw&limit=&call=VE7DID">VE7DID*</a>,WIDE3-3,qAR,<a href="http://aprs.fi/?c=raw&limit=&call=UBC39">UBC39</a>:`2Txm"Q>/]"3m}2004 BUICK REGAL=
<b>[Rate limited (< 5 sec)]</b></span><br>
type: location<br>
format: mice<br>
srccallsign: VE7HMW-9<br>
dstcallsign: 461QTP<br>
latitude: 46.19 °<br>
longitude: -122.9486666666667 °<br>
course: 253 °<br>
speed: 18.52 km/h<br>
altitude: -5 m<br>
symboltable: /<br>
symbolcode: ><br>
mbits: 000<br>
posresolution: 18.52 m<br>
posambiguity: 0<br>
comment: ]2004 BUICK REGAL=<br>
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<span class="x_x_raw_line_err">2014-08-07 19:38:26 EDT: <b><a href="http://aprs.fi/?c=raw&limit=&call=VE7HMW-9">VE7HMW-9</a></b>>461QTP,<a href="http://aprs.fi/?c=raw&limit=&call=VE7DID">VE7DID*</a>,WIDE3-2,qAR,<a href="http://aprs.fi/?c=raw&limit=&call=VA7REF-1">VA7REF-1</a>:`2Txm"Q>/]"3m}2004 BUICK REGAL=
<b>[Location changes too fast (adaptive limit)]</b></span><br>
type: location<br>
format: mice<br>
srccallsign: VE7HMW-9<br>
dstcallsign: 461QTP<br>
latitude: 46.19 °<br>
longitude: -122.9486666666667 °<br>
course: 253 °<br>
speed: 18.52 km/h<br>
altitude: -5 m<br>
symboltable: /<br>
symbolcode: ><br>
mbits: 000<br>
posresolution: 18.52 m<br>
posambiguity: 0<br>
comment: ]2004 BUICK REGAL=<br>
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And then there's this interestingly corrupted packet:<br>
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<span class="x_x_raw_line_err">2014-08-07 19:38:28 EDT: <b><a href="http://aprs.fi/?c=raw&limit=&call=VE7HMW-9">VE7HMW-9</a></b>>4Y1PYW,WIDE1-1,qAR,<a href="http://aprs.fi/?c=raw&limit=&call=VA7REF-1">VA7REF-1</a>:EGAL=
<b>[Unsupported packet format]</b></span><br>
srccallsign: VE7HMW-9<br>
dstcallsign: 4Y1PYW<br>
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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.<br>
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Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32<br>
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<div class="x_x_moz-cite-prefix">On 8/8/2014 10:31 AM, Keith VE7GDH wrote:<br>
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<blockquote type="cite">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. <br>
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For a test, I will be sending several emergency beacons from VE7GDH-9 in a few minutes with a status text of...
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"This is a test - NOT an emergency." <br>
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