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Add some FreqCal info to User Guide.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8134 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
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@ -34,6 +34,7 @@ set (UG_SRCS
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protocols.adoc
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logging.adoc
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make-qso.adoc
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measurement_tools.adoc
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new_features.adoc
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platform-dependencies.adoc
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protocols.adoc
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@ -72,6 +73,9 @@ set (UG_IMGS
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images/decodes.png
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images/download_samples.png
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images/file-menu.png
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images/FreqCal.png
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images/FreqCal_Graph.png
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images/FreqCal_Results.png
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images/freemsg.png
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images/ft8_decodes.png
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images/help-menu.png
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doc/user_guide/en/images/FreqCal_Results.png
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doc/user_guide/en/images/FreqCal_Results.png
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@ -56,6 +56,7 @@ measurements, as shown for these measurements in the graph plotted
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below. Software tools for completing this task are included with the
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_WSJT-X_ installation, and detailed instructions for their use are
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available at https://physics.princeton.edu/pulsar/k1jt/FMT_User.pdf.
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Using these tools and no specialized hardware beyond your
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CAT-interfaced radio, you can calibrate the radio to better than 1 Hz
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and compete very effectively in the ARRL's periodic Frequency
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@ -63,6 +64,17 @@ Measuring Tests.
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image::FreqCal_Graph.png[align="left",alt="FreqCal_Graph"]
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After running *Execute frequency calibration cycle* at least once with
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good results, the line-fitting procedure can be carried out
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automatically by clicking *Solve for calibration parameters* on the
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*Tools* menu. The results will be displayed as in the following
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screen shot. Estimated uncertainties are included for slope and
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intercept; `N` is the number of averaged frequency measurements included
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in the fit, and `StdDev` is the root mean square deviation of
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averaged measurements from the fitted straight line.
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image::FreqCal_Results.png[align="center",alt="FreqCal_Results"]
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=== Reference Spectrum
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_WSJT-X_ provides a tool that can be used to determine the detailed
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@ -2113,7 +2113,7 @@ void MainWindow::on_actionSolve_FreqCal_triggered()
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strncpy(data_dir,dpath.toLatin1(),len);
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calibrate_(data_dir,&iz,&a,&b,&rms,&sigmaa,&sigmab,&irc,len);
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QString t1;
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t1.sprintf("Slope: %10.3f ±%7.3f ppm\nIntercept: %7.2f ±%5.2f Hz\n\nNgroups: %6d\nStdDev: %8.2f Hz",
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t1.sprintf("Slope: %10.3f ±%7.3f ppm\nIntercept: %7.2f ±%5.2f Hz\n\nN: %18d\nStdDev: %8.2f Hz",
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b,sigmab,a,sigmaa,iz,rms);
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QString t2{"Solution looks good."};
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if(irc<0) t1="";
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