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These documentation source files are not the one true version, just a copy for testing purposes. DO NOT EDIT THESE FILES. To use this on Windows you will need a working asciidoc installation and the path to it must be included in your CMAKE_PREFIX_PATH (probably via a local CMake tool chain file). At the time of writing the official asciidoc package does not work on Windows. The latest development master does however work, it can be downloaded as a snapshot ZIP archive from here: https://github.com/asciidoc/asciidoc/archive/master.zip git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5316 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
98 lines
3.8 KiB
Plaintext
98 lines
3.8 KiB
Plaintext
// Status=review
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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
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*Settings | General* tab. Your results should then be identical to
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those shown in the screen shot below.
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.Open a Wave File:
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- Select *File | Open* and select the file
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+...\save\samples\130418_1742.wav+. When the file opens you should see
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something similar to the to the following screen shot:
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[[X12]]
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image::images/main-ui-1.4.png[align="center",alt="Main UI and Wide Graph"]
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.Decoding Overview
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Notice the red and green and markers on the Wide Graph (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 marker on the
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waterfall scale. Results appear in both the left (*Band Activity*)
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and right (*Rx Frequency*) text windows on the main screen. The
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program then finds and decodes all signals in the selected mode(s)
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over the displayed frequency range. The red marker indicates your Tx
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frequency.
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Seven JT9 signals are present in the example file, all decodable.
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When this file was recorded KF4RWA was finishing a QSO with K1JT.
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Since the green marker was placed at his audio frequency, 1224 Hz, his
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message ``K1JT KF4RWA 73'' is decoded first and appears in the *Rx
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Frequency* window. The *Band Activity* window shows this message plus
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all decodes at other frequencies. Lines containing CQ are highlighted
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in green, and lines with *My Call* (in this case K1JT) in red.
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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. Results will be similar to those in the
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previous step, except the Tx frequency (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 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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