<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>If you are talking about CTCSS, then there is no "burst". The tone is sent continuously. CTCSS is what Motorola called "Private Line", General Electric called "Channel Guard", RCA called "Quiet Channel", and so forth.</span></div><div><span><br></span></div><div> </div><div>Glen, K9STH<br><br></div><div>Website: http://k9sth.com<br> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; "> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Ron Kramer <kd6edv@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> heath@puck.nether.net <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, October 24, 2012 5:29 PM<br>
<b><span style="font-weight: bold;">Subject:</span></b> [Heath] Subauditible Tone Burst Duration<br> </font> </div> <br><div id="yiv1554359472"><div>I am building a tone board for my VF-2031. </div>
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<div>What should the burst duration be?</div>
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<div>Please respond off list.</div></div> </div> </div> </div></div></body></html>