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<DIV>Hi Jim,</DIV>
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<DIV>For practice I just set the Drive level to zero – that way you don’t
generate any RF.</DIV>
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<DIV>Once we have the Tx delays resolved, by modifying the way the Drive level
is set and, if then necessary, moving the CW generation into the FGPA, we will
have another look at the Rx code. </DIV>
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<DIV>Whilst FIR filters are available that have lower latency we still need to
read a buffer of data before processing so there will be a limit to how low a
latency we can obtain.</DIV>
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<DIV>73 Phil...VK6PH</DIV>
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<DIV style="font-color: black"><B>From:</B> <A
title=jpiccirillo@greenwaldindustries.com
href="mailto:jpiccirillo@greenwaldindustries.com">Jim Piccirillo</A> </DIV>
<DIV><B>Sent:</B> Tuesday, March 18, 2014 9:00 PM</DIV>
<DIV><B>To:</B> <A title=hpsdr@openhpsdr.org
href="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</A> </DIV>
<DIV><B>Subject:</B> [hpsdr] CW Latency</DIV></DIV></DIV>
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<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>*****
High Performance Software Defined Radio Discussion List *****<BR><BR>
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<P class=MsoNormal>Phil, your efforts on CW latency sound very promising. Your
timing could not have been better. I am attempting to use Iambic keyer
functionally for the first time and need lots of practice. Can you add a
“check box” for “practice” which would not enable transmitting? Otherwise, I and
others(?) am using the PTT pedal, T/R relay, and a Dummy Load to practice. Does
that create issues? Is full-break-in achievable?<o:p></o:p></P>
<P class=MsoNormal>TNX Jim WA1NBS<o:p></o:p></P></DIV>
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