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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>APRS Messenger and traditional 300bps AFSK co-exist happily on
the same frequency. It’s been the subject of much discussion and testing on
various other APRS forums. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>AFSK Packet uses 1600Hz/1800Hz tones, whilst the PSK63 tones are
at 2100Hz. Although two simultaneously transmitted signals might sound to the
ear pretty horrid, your TNC will only hear the AFSK tones, and your PSK setup
will only hear the PSK tones….<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>More info and examples here: <a
href="http://wa8lmf.net/APRS_PSK63/index.htm">http://wa8lmf.net/APRS_PSK63/index.htm</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>We already have a handful of stations in VK that have been
experimenting with the PSK63 modes on 30m and also our local 40m APRS frequency
with no bad reports so far.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Geoff VK2XJG<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
ozaprs-bounces@aprs.net.au [mailto:ozaprs-bounces@aprs.net.au] <b>On Behalf Of </b>Tony
Hunt<br>
<b>Sent:</b> Sunday, 29 August 2010 12:09 PM<br>
<b>To:</b> OZ-APRS Mial-list<br>
<b>Cc:</b> Andy snappy Mcdade<br>
<b>Subject:</b> [OZAPRS] APRS Messenger<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I wonder if anyone has noticed the presence/arrival of APRS
messenger ?<o:p></o:p></p>
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<p class=MsoNormal><a
href="http://www.crosscountrywireless.net/aprs_messenger.htm">http://www.crosscountrywireless.net/aprs_messenger.htm</a><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>I notice this web page from the US is recomending 10.147.6
USB for this with a 2100 Hz shift.<o:p></o:p></p>
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<p class=MsoNormal><a href="http://k7ek.net/readarticle.php?article_id=7">http://k7ek.net/readarticle.php?article_id=7</a><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>Once the sun cycle starts to improve we will start to get
this appearing on the 30m APRS frequency.<o:p></o:p></p>
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<p class=MsoNormal>What will this do to the 30m APRS 300 Bd net ?<o:p></o:p></p>
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<p class=MsoNormal><br>
Tony Hunt VK5AH<o:p></o:p></p>
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