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99 lines
3.9 KiB
Plaintext
99 lines
3.9 KiB
Plaintext
// Status=review
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.Open a Wave File:
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- Select *File | Open* and navigate to
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+...\save\samples\130418_1742.wav+ under the _WSJT-X_ installation
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directory. When the file opens you should see something similar to
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the to the following screen shot:
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[[X12]]
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image::images/r3556-main-ui-80.png[align="center",alt="Main UI and Wide Graph"]
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.Decoding Overview
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Notice the [green]*GREEN* and [red]*RED* markers on the waterfall
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frequency scale. Decoding takes place at the end of a receive
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sequence and is organized in two stages. The first decodes take place
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at the selected Rx frequency, indicated by the [green]*GREEN* marker.
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Results appear in both the left (*Band Activity*) and right (*Rx
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Frequency*) text windows on the main screen. The program then finds
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and decodes all signals in the selected mode or modes over the
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displayed frequency range. The [red]*RED* marker indicates your Tx
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frequency.
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At least eight JT9 signals are present in the example file; all but
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one of them are decodable. When this file was recorded KF4RWA was
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finishing a QSO with K1JT. Since the green marker was placed at his
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audio frequency, 1224 Hz, his message “K1JT KF4RWA 73” appears in the
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*Rx Frequency* window. The *Band Activity* window shows this message
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plus all the other decodes at nearby frequencies. The CQ lines are
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highlighted in [green]*GREEN*, and lines containing *My Call*, in this
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case K1JT, are highlighted in [red]*RED*.
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TIP: For this step and the next, you may want to pretend you are K1JT
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by entering that callsign temporarily as *My Call* on the <<X11,*Setup
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| Configuration*>> screen. Your results should then be identical to
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those shown in the screen shot above.
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[[X13]]
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.Decoding Controls
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To gain some feeling for the controls frequently used when making
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QSOs, try clicking with the mouse on the decoded text lines and on the
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waterfall spectral display. You should be able to confirm the
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following behavior:
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- Double-click on either of the decoded lines highlighted in
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green. This action produces the following results:
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** Callsign and locator of a station calling CQ are copied to the *DX
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Call* and *DX Grid* entry fields.
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** Messages are generated for a minimal QSO.
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** The *Tx even* box is checked or cleared appropriately, so that you
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will transmit in the proper (odd or even) minutes.
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** The Rx and Tx frequency markers are moved to the frequency of the
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CQing station.
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** The *Gen Msg* (``generated message'') radio button at bottom right
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of the main window is selected.
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** If you have checked *Double-click on call sets Tx Enable* on the
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*Setup* menu, *Enable Tx* is activated and a transmission starts
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automatically at the appropriate time.
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- Double-click on the decoded message ``K1JT N5KDV EM41'',
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highlighted in [red]*RED*. Results will be similar to those in the
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previous step, except the Tx frequency ([red]*RED* marker) is not
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moved. Such messages are usually in response to your own CQ, or from
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a tail-ender, and you probably want your Tx frequency to stay where it
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was.
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- By holding down the *Ctrl* key when double-clicking on the decoded line
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you can cause both Tx and Rx frequencies to be moved. This behavior
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can also be forced by checking *Lock Tx=Rx*.
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- Double-click on the message from KF4RWA in either window. He is
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sending ``73'' to K1JT, signifying that the QSO is over. Most likely
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you want to send 73 to him, so the message ``KF4RWA K1JT 73'' is
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automatically generated and selected for your next transmission.
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(Alternatively, you might choose to send a free text message or to
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call CQ again.)
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- Click on the waterfall to set Rx frequency ([green]*GREEN* marker).
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- Ctrl-click on waterfall to set both Rx and Tx frequencies.
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- Double-click on the waterfall to set Rx frequency and start a
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narrow-band decode there. Decoded text appears in the right window
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only.
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- Ctrl-double-click to set both Rx and Tx frequencies and decodes at
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the new frequency.
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- Click *Erase* to clear the right window.
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- Double-click *Erase* to clear both text windows.
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