62 lines
2.5 KiB
Plaintext
62 lines
2.5 KiB
Plaintext
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// Status=review
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.Main Window:
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- Select *FT8* on the *Mode* menu.
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- Set Tx and Rx frequencies to 1200 Hz.
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- Double-click on *Erase* to clear both text windows.
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.Wide Graph Settings:
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- *Bins/Pixel* = 4, *Start* = 200 Hz, *N Avg* = 2
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- Adjust the width of the Wide Graph window so that the upper
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frequency limit is approximately 2600 Hz.
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.Open a Wave File:
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- Select *File | Open* and navigate to
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+...\save\samples\FT8\170709_135615.wav+. The waterfall and decoded
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text window should look something like the following screen shots:
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[[X15]]
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image::170709_135615.wav.png[align="left",alt="Wide Graph Decode 170709_135615"]
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image::ft8_decodes.png[align="left"]
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- Click with the mouse anywhere on the waterfall display. The green Rx
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frequency marker will jump to your selected frequency, and the Rx
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frequency control on the main window will be updated accordingly.
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- Do the same thing with the Shift key held down. Now the red Tx
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frequency marker and its associated control on the main window will
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follow your frequency selections.
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- Do the same thing with the Ctrl key held down. Now the both colored
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markers and both spinner controls will follow your selections.
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- Double-clicking at any frequency on the waterfall does all the
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things just described and also invokes the decoder in a small range
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around that frequency. To decode a particular signal, double-click
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near the left edge of its waterfall trace.
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- Now double-click on any of the the lines of decoded text in the main
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window. Unless you have *My Call* set to K1JT or KY7M on the
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*Settings -> General* tab, all three lines will show the same
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behavior, setting both RxFreq and TxFreq to the frequency of the
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selected message. However, if MyCall is set to K1JT then clicking on
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a message directed to K1JT will move only the Rx frequency setting.
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This behavior is desirable so that you will not inadvertently change
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your Tx frequency to that of a tail-ender who called you somewhere
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else in the FT8 subband.
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NOTE: The FT8 decoder can often copy several overlapping signals at
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nearly the same frequency. However, in crowded band conditions you
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will often find it advantageous to move off the frequency of the
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station you are calling. Keyboard shortcuts *Shift+F11* and
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*Shift+F12* provide an easy way to move your Tx frequency in 60 Hz
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steps.
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NOTE: Further helpful tips on FT8 operating procedures are available
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{ft8_tips}. Thanks to ZL2IFB!
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IMPORTANT: When finished with this Tutorial, don't forget to re-enter
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your own callsign as *My Call* on the *Settings | General* tab.
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