<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1505410567719_23090" dir="ltr"><span id="yui_3_16_0_ym19_1_1505410567719_23113">FT8 is a fun mode and although it has been more popular than JT65, it has not totally replaced it. I think JT65 is better for very weak signals but the jury is still out. I still use JT65 to find "new ones" on the bands. A couple weeks ago I worked VP8EME on 80M JT65 for a new one on 80. At present I have well over a thousand FT8 contacts.</span></div><div id="yui_3_16_0_ym19_1_1505410567719_23090"><span><br></span></div><div id="yui_3_16_0_ym19_1_1505410567719_23090">What makes FT8 so popular is the approx. 13 second transmission period compared to nearly 48 seconds for JT65. This curiously could make it a new digital contest (and possible DXpedition) mode but more experience is needed. I used FT8 exclusively in the CQ VHF contest this summer.</div><div id="yui_3_16_0_ym19_1_1505410567719_23090"><br></div><div id="yui_3_16_0_ym19_1_1505410567719_23090">Several DXpeditions are looking to use FT8 including the upcoming KH1 trip. I still think RTTY will end up prevailing and remaining the contest and DXpedition digital mode of choice but until we see what FT8 can do, we really don't know.</div><div id="yui_3_16_0_ym19_1_1505410567719_23090"><br></div><div id="yui_3_16_0_ym19_1_1505410567719_23090">73, Don AA5AU</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1505410567719_23159"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1505410567719_23155" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1505410567719_23154"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1505410567719_23153"> <div dir="ltr" id="yui_3_16_0_ym19_1_1505410567719_23152"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1505410567719_23151"> <hr size="1" id="yui_3_16_0_ym19_1_1505410567719_23150"> <b><span style="font-weight:bold;">From:</span></b> "marsh@ka5m.net" <marsh@ka5m.net><br> <b><span style="font-weight: bold;">To:</span></b> LCC <lcc@louisianacontestclub.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, September 14, 2017 9:08 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> [LCC] FT8 - New Digital Mode<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1505410567719_23422"><br><div id="yiv6994247089">
<title>FT8 - New Digital Mode</title>
<div id="yui_3_16_0_ym19_1_1505410567719_23421">
<div dir="LTR"><span lang="en-us"><font face="Calibri">Judging from spots on packetcluster, it look like JT65 has been replaced by FT8 as the w</font><font face="Calibri">eak signal digital mode of choice.</font></span></div>
<div dir="LTR" id="yui_3_16_0_ym19_1_1505410567719_23420"><span lang="en-us"><font face="Calibri">“</font></span><span lang="en-us" id="yui_3_16_0_ym19_1_1505410567719_23419"><font face="Calibri" id="yui_3_16_0_ym19_1_1505410567719_23418">A beta release of WSJT-X, version 1.8.0-rc1, includes a new FT8 mode, featuring a faster turnaround, and it</font><font face="Calibri">’</font><font face="Calibri">s already showing up on the bands. According to the notes for the candidate release, FT8 offers “sensitivity dow</font><font face="Calibri">n to</font> <font face="Calibri">–</font><font face="Calibri" id="yui_3_16_0_ym19_1_1505410567719_23424">20 dB on the AWGN channel,” and contacts 4 times faster than JT65 or JT9. An auto-sequencing feature offers the option to respond automatically to the first decoded reply to your CQ. The beta WSJT-X also offers a new mode for accurate frequency cali</font><font face="Calibri">b</font><font face="Calibri" id="yui_3_16_0_ym19_1_1505410567719_23441">ration of your radio, improved CAT radio control, and enhanced JT65, QRA64, and MSK144 decoder performance.</font></span><span lang="en-us"><font face="Calibri">”</font></span><span lang="en-us"></span></div>
<div dir="LTR" id="yui_3_16_0_ym19_1_1505410567719_23439"><span lang="en-us" id="yui_3_16_0_ym19_1_1505410567719_23453"><font face="Calibri" id="yui_3_16_0_ym19_1_1505410567719_23452">73,</font></span></div>
<div dir="LTR" id="yui_3_16_0_ym19_1_1505410567719_23457"><span lang="en-us" id="yui_3_16_0_ym19_1_1505410567719_23456"><font face="Calibri" id="yui_3_16_0_ym19_1_1505410567719_23455">Marsh</font></span><span lang="en-us"><font face="Calibri">, KA5M</font></span><span lang="en-us"></span></div>
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