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<p class="MsoNormal"><span lang="EN-US">New Chinese Data Mode CP-16<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Existing amateur radio data modes have been based around the English alphabet. Now a new mode has been developed to handle Chinese characters.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Since 2011 the Chinese Radio Amateurs Club (CRAC) have been working on a project to develop a new mode CP-16, which stands for Chinese character Pattern of 16 x 16 dot-matrixes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">To achieve the goal of allow easy communication at very low S/N ratio, CP-16 is designed to directly transmit the graphic image of Chinese character as a 16 by 16 dot-matrix, one line at a time and about 10 ms per line
adjustable according to the conditions. This makes the total transmission speed of 2 to 5 characters per second, which is suitable for real-time reading.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">It uses 16 on-off –keyed audio carriers spaced at 17 Hz intervals, the total bandwidth is under 400 Hz.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The CP-16 message can be received by any SDR receiver or the combination of an ordinary SSB receiver and a PC computer, plus any SDR/audio analyzing software with waterfall display. The text will be directly shown on
the waterfall graph. The human brain will easily filter out all sorts of noise and correctly pick up the character.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">A paper on the work was presented by CRAC to the IARU Region 3 conference in Vietnam and can be seen at
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://www.iaru-r3.org/15r3c/docs/056.doc<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The BBC have recently published an article regarding the pronunciation of Mandarin Chinese names at
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://www.bbc.co.uk/blogs/magazinemonitor/2012/11/how_to_say_chinese_leaders.shtml<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">BBC Text Spelling Guide<o:p></o:p></p>
<p class="MsoNormal">http://www.bbc.co.uk/blogs/magazinemonitor/text_spelling_guide.doc<o:p></o:p></p>
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