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User guide updates for frequency calibration mode
Also some instances of non-italicized WSJT-X fixed. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8169 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
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@ -5,7 +5,7 @@ and operation. Most of the items are self-explanatory; a few
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additional details are provided below. Keyboard shortcuts for some
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frequently used menu items are listed at the right edge of the menu.
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==== WSJT-X menu
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==== _WSJT-X_ menu
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image::MacAppMenu.png[align="left",alt="Mac App Menu"]
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This menu appears on the Macintosh only. *Settings* appears here,
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@ -44,7 +44,7 @@ successful decode used MyCall as hypothetically known information.
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|===============================================
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Table 2 lists the six possible QSO states that are tracked by the
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WSJT-X auto-sequencer, along with the type of AP decoding that would
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_WSJT-X_ auto-sequencer, along with the type of AP decoding that would
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be attempted in each state.
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[[AP_DECODING_TYPES_TABLE]]
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@ -69,6 +69,9 @@ command-prompt window:
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sudo apt remove appmenu-qt5
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+
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Alternatively, you can disable the common menu bar for just WSJT-X by starting the application with the environment variable QT_QPA_PLATFORMTHEME set to empty (the space after the '=' character is necessary):
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Alternatively, you can disable the common menu bar for just _WSJT-X_
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by starting the application with the environment variable
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QT_QPA_PLATFORMTHEME set to empty (the space after the '=' character
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is necessary):
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QT_QPA_PLATFORMTHEME= wsjtx
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@ -30,19 +30,25 @@ in other parts of the world.
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- In most cases you will want to start by deleting any existing file
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`fmt.all` in the directory where your log files are kept.
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- Enter `0.0` for both *Slope* and *Intercept* under _Frequency
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Calibration_ on the *Settings -> Frequencies* tab.
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- To cycle automatically through your chosen list of calibration
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frequencies, check *Execute frequency calibration cycle* on the
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*Tools* menu. _WSJT-X_ will spend 30 seconds at each frequency,
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writing its measurements to file `fmt.all` in the log directory.
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*Tools* menu. _WSJT-X_ will spend 30 seconds at each
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frequency. Initially no measurement data is saved to the `fmt.all`
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file although it is displayed on screen, this allows you to check you
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current calibration parameters.
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- During the calibration procedure, the radio's USB dial frequency is
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offset 1500 Hz below each *FreqCal* entry in the default frequencies
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list. As shown in the screen shot below, detected signal carriers
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therefore appear at about 1500 Hz in the _WSJT-X_ waterfall.
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- To start a measurement session check the *Measure* option and let
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the calibration cycle run for at least one complete sequence. Note
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that, while measuring, any existing calibration parameters are
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automatically disabled so you may have to increase the *FTol* range if
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your rig is off freqeuncy by more than a few Hertz in order to capture
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valid measurements.
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image::FreqCal.png[align="left",alt="FreqCal"]
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With modern synthesized radios, small measured offsets from 1500 Hz
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@ -78,18 +84,25 @@ displayed as in the following screen shot. Estimated uncertainties
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are included for slope and intercept; `N` is the number of averaged
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frequency measurements included in the fit, and `StdDev` is the root
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mean square deviation of averaged measurements from the fitted
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straight line.
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straight line. If the solution seems valid you will be offered an
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*Apply* button to push that will automatically set the calibration
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parameters in *Settings -> Frequencies -> Frequency Calibration*.
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image::FreqCal_Results.png[align="center",alt="FreqCal_Results"]
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For a quick visual check of the resulting calibration, stay in
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*FreqCal* mode with the *Measure* option cleared. _WSJT-X_ will show
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the adjusted results directly on the waterfall and the displayed
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records.
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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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shape of your receiver's passband. Disconnect your antenna or tune to
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a quiet frequency with no signals. With WSJT-X running in one of the
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slow modes, select *Measure reference spectrum* from the *Tools* menu.
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Wait for about a minute and then hit the *Stop* button. A file named
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`refspec.dat` will appear in your log directory.
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a quiet frequency with no signals. With _WSJT-X_ running in one of
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the slow modes, select *Measure reference spectrum* from the *Tools*
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menu. Wait for about a minute and then hit the *Stop* button. A file
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named `refspec.dat` will appear in your log directory.
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[ ... more to come ... ]
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@ -1,6 +1,6 @@
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// Status=review
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image::settings-audio.png[align="center",alt="WSJT-X Audio Configuration Screen"]
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image::settings-audio.png[align="center",alt="_WSJT-X_ Audio Configuration Screen"]
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Select the *Audio* tab to configure your sound system.
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@ -1,5 +1,5 @@
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// This is a comment line, anything with // is ignored at process time.
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= WSJT-X User Guide
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= _WSJT-X_ User Guide
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Joseph H Taylor, Jr, K1JT
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:revnumber: {VERSION}
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// For web-pages, adding :badges: is ok, but is a security issue for
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