kopia lustrzana https://github.com/jamescoxon/dl-fldigi
CW configuration
* updated documentation for the new BPF transmit shapingpull/1/head
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@ -153,6 +153,16 @@ length as the edge timing is increased. This is useful when
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operating QSK and listening between the character elements.</li>
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</ul>
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<li>The transmitted signal can be further wave shaped using a "Windowed-sinc"
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bandpass filter. It is enabled by checking the "BPF transmit audio" check box.
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The bandwidth of the filter can be adjusted from 10 to 1000 Hertz with the BPF bw
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control. The filter will always be centered on the AFCW injection frequency
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(waterfall TX cursor position). You should both visually observe and listen to
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the resulting CW signal. The easiest way to do this is to enable the "Send continuously",
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select a test character and then press the TX button on the main dialog. The
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weight, dash/dot, edge shape selection, edge timing, BPF and bandwidth can be
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changed with immediate effect.
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This is what the A2 signal should look like with various settings of
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weight, Dash/Dot and Edge. The audio frequency is 400 Hz and
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the TxWPM is 100 WPM.
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