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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3669 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
100 lines
4.0 KiB
Plaintext
100 lines
4.0 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/r3666-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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on the waterfall scale. Results appear in both the left (*Band
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Activity*) and right (*Rx Frequency*) text windows on the main
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screen. The program then finds and decodes all signals in the selected
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mode(s) over the displayed frequency range. The [red]*RED* marker
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indicates your Tx 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'' is decoded
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first and appears in the *Rx Frequency* window. The *Band Activity*
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window shows this message plus all decodes at other frequencies.
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Lines containing CQ are highlighted in [green]*GREEN*, and lines
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with *My Call* (in this case K1JT) 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 controls frequently used when making QSOs,
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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 standard 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 had checked *Double-click on call sets Tx Enable* on the
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*Setup* menu, *Enable Tx* would be activated and a transmission would
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start automatically at the proper 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 a decoded
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line you can cause both Tx and Rx frequencies to be moved. This
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behavior 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 somewhere on the waterfall to set Rx frequency ([green]*GREEN*
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marker).
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- Ctrl-click on the waterfall to set both Rx and Tx frequencies.
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- Double-click on a signal in the waterfall to set Rx frequency and
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start a narrow-band decode there. Decoded text will appear in the
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right window only.
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- Ctrl-double-click on a signal to set both Rx and Tx frequencies and
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decode at 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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