kopia lustrzana https://github.com/jamescoxon/dl-fldigi
71 wiersze
1.9 KiB
Plaintext
71 wiersze
1.9 KiB
Plaintext
/**
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\page cw_keying_page CW Keying
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\tableofcontents
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\image html config-cw-qsk.png "Timing and QSK"
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\image latex config-cw-qsk.png "Timing and QSK" width=5.0in
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<br>
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Click on the Configure menu item to open the <i>fldigi</i> configuration
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dialog. Click on the Modems tab and then on the QSK tab.
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<ol>
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<li>Set the Pre Timing and Post Timing to zero.</li>
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<li>Activate the QSK feature by clicking "QSK on right channel".</li>
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</ol>
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Click the CW tab and adjust the CW settings to your preference. Use the Test
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char and the Send continuous controls to ease the adjustment process.
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<br>
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FLdigi is now ready to generate a 1600 hertz CW tone on the right channel of
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the stereo audio out of your sound card.
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<br>
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The left channel will be the normal raised cosine shaped CW wave form
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that you may use for your side tone.
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<br>
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The following circuit may be used to take the FLdigi QSK OUT signal from the
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right channel of your SOUND CARD to key your transmitter or a QSK circuit.
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<br>
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\image html CWkeyingCircuit.png "CW Keying Circuit"
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\image latex CWkeyingCircuit.png "CW Keying Circuit" width=6.5in
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<br>
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<b>NOTE:</b>
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L1 - Radio Shack has two items that may be used for this isolation transformer.
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<br>
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<ul>
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<li> Catalog # 270-054</li>
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<li> Catalog # 273-1374</li>
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</ul>
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Attach an audio cable from the Rt. Channel out of the your computer's
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SOUND CARD to the input of this QSK INTERFACE CIRCUIT (input of L1).
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Attach another cable from the output of this circuit to your Rig's Keying
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Jack.mall>
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Every CW tone that is generated by FLdigi is rectified by this
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FULL WAVE VOLTAGE DOUBLER circuit. The resultant voltage turns the Q1
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transistor on and "grounds" the collector, which takes the RIG'S CW
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KEYING JACK to ground and "keys" the transmitter.
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You can adjust the start and stop timing of the QSK circuit relative to the
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CW waveform with the "pre" and "post" settings.
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<br>
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\ref cw_keying_page "Return to Top of Page"
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<br>
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\ref main_page "Return to Main Page"
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*/
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