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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My understanding is that the low speed data channel does NOT have error correction, however, D-RATS offers Error correction in Message and File Transfer modes
where it is most important.<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">John WB4QDX<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:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> drats_users-bounces@intrepid.danplanet.com [mailto:drats_users-bounces@intrepid.danplanet.com]
<b>On Behalf Of </b>Dave Welker<br>
<b>Sent:</b> Friday, September 20, 2013 3:19 PM<br>
<b>To:</b> D-Rats Mailing List<br>
<b>Subject:</b> [drats_users] ERROR Correction in slow speed data<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"><span style="font-family:"Century Gothic","sans-serif"">Hello all,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">Can anyone confirm if the D-RATS slow speed data has FEC (Forward Error Correction) built in now or not?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">I understand that D-STAR voice does have error correction built in. I've checked on the D-RATS home page/documentation</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">which is a August 2009 reference.</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">This is what I found in this document Under users manual/files: Is this still current information?</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<strong><span style="font-family:"Verdana","sans-serif";color:#666666">Unlike the D-STAR DV Voice Channel, which has error correction built into the protocol, the Data Sub-channel has no error correction.
</span></strong><span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666"> <o:p></o:p></span></p>
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<strong><span style="font-family:"Verdana","sans-serif";color:#666666">This makes the transfer of data across D-STAR a lot more dependant on a good radio path being established between the two locations wishing to
</span></strong><span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666"> <o:p></o:p></span></p>
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<strong><span style="font-family:"Verdana","sans-serif";color:#666666">exchange data. D-RATS includes the ability to test connectivity between two locations</span></strong><strong><span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666">.</span></strong><span style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#666666"><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"><span style="font-family:"Century Gothic","sans-serif"">Thanks in advance</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">regards</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">Dave</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">W2SRP</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">Goals are where we want to be;<br>
Objectives are the steps to get there.</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif"">There are 2 rules to success in life:<br>
1. Don't tell people everything you know.</span><o:p></o:p></p>
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