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fd4bc2d602
smaller files, by section and sub-section. Also extensive editing up through section 7. Sections 6.2, 8, and beyond definitely need work. Other polishing is also desirable, and maybe also some additions and/or changes. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3656 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
90 lines
4.0 KiB
Plaintext
90 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 ...\save\samples\130418_1742.wav
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under your program installation directory.
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When the file opens you should see something similar to the to the
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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 marker. Results
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appear in both the left (“Band Activity”) and right (“Rx Frequency”)
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text windows on the main screen. The decoder then finds and decodes
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all signals in the selected mode(s) and the displayed frequency
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range. The red marker indicates your Tx frequency.
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At least eight JT9 signals are present in the example file; all
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but 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 both
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decoded text windows. The “Band Activity” window shows this message
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as well as all the other decodes at nearby frequencies. The CQ lines
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are highlighted in [green]*GREEN*, and lines containing “My Call”, in
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this 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 by
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entering that call temporarily as “My Call” on the <<X11,Configuration
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Screen>>. Your results should then be identical to those shown in the
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<<X12,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 you will use when making QSOs, try
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clicking with the mouse on the decoded text lines and on the waterfall spectral
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display. You should be able to confirm the following behavior:
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- Double-click on either of the decoded lines highlighted in green. This action
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should produce the following:
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** Copies call-sign and locater of a station calling CQ to the “DX Call”
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and “DX grid” entry fields.
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** Generates suitable messages for a minimal QSO and checks or clears the Tx
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even box so that you will transmit in the proper (odd or even) minutes.
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** Rx and Tx frequency markers will be moved to the CQ-ing station’s frequency,
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and the Gen Msg (“generated message”) radio button at bottom right of the main
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window will be selected.
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** If you had checked “Double-click on call sets Tx Enable” on the Setup menu,
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Enable Tx would also be activated, and you would start to transmit automatically,
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at the appropriate time.
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- Double-click on the decoded line with the 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 you
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want to send 73 to him, so the message “KF4RWA K1JT 73” is automatically
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generated and selected for your next transmission. (Alternatively, you might
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choose to send a free text message or to call CQ again.)
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- Clicking on the waterfall moves the Rx frequency ([green]*GREEN* marker) to the
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selected frequency.
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- Ctrl-click on waterfall moves both Rx and Tx frequencies.
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- Double-click on the waterfall moves the Rx frequency and causes a
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narrow-band decode there at the new QSO frequency. Decoded text appears in the
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right window only. Ctrl-double-click moves both Rx and Tx frequencies and
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decodes at the new frequency.
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- Clicking Erase clears the right window. Double-click on Erase to clear both
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text windows.
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