kopia lustrzana https://github.com/xdsopl/qsstv
139 wiersze
4.9 KiB
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139 wiersze
4.9 KiB
HTML
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<tr style="height: 56px;">
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<td id="projectalign" style="padding-left: 0.5em;">
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<div id="projectname">QSSTV
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 <span id="projectnumber">9.2</span>
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<div class="title">Receive DRM Window </div> </div>
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<div class="contents">
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<div class="textblock"><div class="image">
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<img src="receivedrm.png" alt="receivedrm.png"/>
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</div>
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<p>SNR (vu-meter S):</p><ul>
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<li>SNR in dB</li>
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</ul>
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<p>Volume (vu-meter V):</p><ul>
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<li>adjust your recording level to half scale (better too low than too high).</li>
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</ul>
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<p>Received segments: </p><div class="image">
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<img src="rxdrm_segments.png" alt="rxdrm_segments.png"/>
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</div>
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<ul>
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<li>green: correctly received segments</li>
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<li>red: missing segments</li>
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</ul>
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<p>Constellation: </p><div class="image">
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<img src="rxdrm_constellation.png" alt="rxdrm_constellation.png"/>
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</div>
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<ul>
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<li>FAC constellation (always QAM 4)</li>
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<li>MSC constellation.</li>
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</ul>
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<p>Receive status </p><div class="image">
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<img src="rxdrm_status.png" alt="rxdrm_status.png"/>
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</div>
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<ul>
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<li>Mode (A,B or E)</li>
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<li>Bandwidth (2.2 kHz or 2.5 kHz)</li>
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<li>Interleave (Short or Long)</li>
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<li>Protection (Normal or High)</li>
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<li>QAM (4,16 or 64)</li>
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<li>SNR (should be above 6 dBm)</li>
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<li>Offset (0 Hz if no frequency offset)</li>
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<li>Total Segm.: total number of segments in the file</li>
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<li>RX Sgmnts.: number of correctly received segment</li>
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<li>Cur. Sgmnt.: segment currently transmitted</li>
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<li>Transp. ID; unique identifier for the current stream.</li>
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<li>Callsign from the transmitting station</li>
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</ul>
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<div class="image">
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<img src="statusleds.png" alt="statusleds.png"/>
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</div>
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<ul>
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<li>TIME: green if time sync else red</li>
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<li>FRAME: green if frame sync else red</li>
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<li>FAC: green if FAC correctly received else red</li>
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<li>MSC:<ul>
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<li>red: incorrectly received</li>
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<li>green: correctly received</li>
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<li>yellow: already received</li>
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</ul>
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</li>
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</ul>
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<p>When an data stream is received , the program will try to decode it and save it in the receive image directory. If the data stream is a text file it will be displayed in a separate window. Just click OK to close it.</p>
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<div class="image">
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<img src="waterfall.png" alt="waterfall.png"/>
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</div>
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<p> Spectrum:<br />
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You can select the spectrum or the waterfall by clicking in this window. In DRM the waterfall gives you better view. The three markers above the waterfall indicate the position of the pilot frequencies. This helps tuning the radio to the correct frequency. <br />
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<br />
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(8) see <a class="el" href="RXSSTV.html">Receive SSTV Window</a> </p>
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<li class="navelem"><a class="el" href="index.html">QSSTV 9.2</a></li>
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<li class="footer">Generated on Thu Nov 16 2017 18:16:13 for QSSTV by
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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