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+// Status=review
+.Main Window:
+- Select *FT8* on the *Mode* menu.
+- Set Tx and Rx frequencies to 1200 Hz.
+- Double-click on *Erase* to clear both text windows.
+
+.Wide Graph Settings:
+
+- *Bins/Pixel* = 4, *Start* = 200 Hz, *N Avg* = 2
+- Adjust the width of the Wide Graph window so that the upper
+frequency limit is approximately 2600 Hz.
+
+.Open a Wave File:
+
+- Select *File | Open* and navigate to
+...\save\samples\FT8\170709_135615.wav+.  The waterfall and decoded
+text window should look something like the following screen shots:
+
+[[X15]]
+image::170709_135615.wav.png[align="left",alt="Wide Graph Decode 170709_135615"]
+
+image::ft8_decodes.png[align="left"]
+
+- Click with the mouse anywhere on the waterfall display. The green Rx
+frequency marker will jump to your selected frequency, and the Rx
+frequency control on the main window will be updated accordingly.
+
+- Do the same thing with the *Shift* key held down.  Now the red Tx
+frequency marker and its associated control on the main window will
+follow your frequency selections.
+
+- Do the same thing with the *Ctrl* key held down.  Now the both colored 
+markers and both spinner controls will follow your selections.
+
+- Double-clicking at any frequency on the waterfall does all the
+things just described and also invokes the decoder in a small range
+around the Rx frequency.  To decode a particular signal, double-click
+near the left edge of its waterfall trace.
+
+- Now double-click on any of the the lines of decoded text in the main
+window.  All three lines will show the same behavior, setting Rx
+frequency to that of the selected message and leaving Tx frequency
+unchanged.  To change both Rx and Tx frequencies, hold *Ctrl* down
+when double-clicking.
+
+NOTE: To avoid QRM from competing callers, it is frequently desirable
+to answer a CQ on a different frequency from that of the CQing
+station.  The same is true when you tail-end another QSO.  Choose a Tx
+frequency that appears to be not in use.
+
+NOTE: Keyboard shortcuts *Shift+F11* and *Shift+F12* provide an easy
+way to move your Tx frequency down or up in 60 Hz steps.
+
+NOTE: Further helpful tips on FT8 operating procedures are available
+{ft8_tips}.  Thanks to ZL2IFB!
+
+.FT8 DXpedition Mode:
+
+This special operating mode enables DXpeditions to make FT8 QSOs at
+very high rates.  Both stations must use _WSJT-X_ Version 1.9 or
+later.  Detailed operating instructions for {ft8_DXped} are available
+online.  Do not try to use DXpedition mode without reading these
+instructions carefully!
+
+IMPORTANT: FT8 DXpedition mode is intended for use by rare-entity
+DXpeditions and other unusual circumstances in which sustained QSO
+rates well above 100/hour are expected.  Do not use the multi-signal
+capability unless you satisfy this requirement, and do not use
+DXpedition Mode in the conventional FT8 sub-bands.  If you are
+contemplating operation as Fox using DXpedition Mode, find a suitable
+dial frequency consistent with regional band plans and publicize it
+for the operators you hope to work.  Remember that on-the-air signal
+frequencies will be higher than the dial frequency by up to 4 kHz.
+
+IMPORTANT: When finished with this Tutorial, don't forget to re-enter
+your own callsign as *My Call* on the *Settings | General* tab.