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<DIV>My observations with latest code: </DIV>
<DIV> </DIV>
<DIV>OZY C8N D1 is not flashing when software is running.</DIV>
<DIV>Receive audio appears to be fine at all three sample rates.</DIV>
<DIV>Transmit audio exhibits distortion when viewed on another SDR or a Spectrum
analyzer</DIV>
<DIV> it is worse at 96000 sample rate, but still visible at
192k and 48k. You cannot rely on</DIV>
<DIV> "on the air" reports from all stations. It is not always
acknowledge by most stations</DIV>
<DIV> using analog radio. </DIV>
<DIV> </DIV>
<DIV>
<DIV>OZY C7N D1 is not flashing when software is running.</DIV>
<DIV>Receive audio appears to be fine at all three sample rates.</DIV>
<DIV>Transmit audio exhibits distortion when viewed on another SDR or a Spectrum
analyzer</DIV>
<DIV> it is worse at 96000 sample rate, but still visible at
192k and 48k. You cannot rely on</DIV>
<DIV> "on the air" reports from all stations. It is not always
acknowledge by most stations</DIV>
<DIV> using analog radio. </DIV>
<DIV> </DIV>
<DIV>As can be seen from above, in RECEIVE mode, all is well with latest
code and both C8N & C7N OZY.</DIV>
<DIV>I have one of the C8N OZY boards that was a problem with OZY 13 with relay
chatter and distorted</DIV>
<DIV>receive audio. OZY 14 fixes the receive issues but has introduced a
transmit issue. Again, listening</DIV>
<DIV>to the HPSDR on analog radio does not necessarily exhibit "bad" audio, but
when monitored by</DIV>
<DIV>another "reliable" SDR radio (and spectrum analyzer), the waveform tells
all. BTW, I tried two </DIV>
<DIV>Penelope boards and two Mercury boards as well.</DIV>
<DIV> </DIV>
<DIV>Has anyone else checked their transmit signal? K5SO & I checked each
other and were able</DIV>
<DIV>to see on the air what I have described above. Reverting back to May 29
code cleared the </DIV>
<DIV>transmit problem.</DIV>
<DIV> </DIV>
<DIV>
<DIV>73 de Joe</DIV>
<DIV>K1RQG</DIV></DIV></DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 6/14/2009 2:36:51 P.M. Eastern Daylight Time,
kirk@hdlexpress.com writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 10px; MARGIN-LEFT: 10px"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>*****
High Performance Software Defined Radio Discussion List *****<BR><BR>I would
like to gather some information on the new FPGA code release. <BR>LED D1
flashes a code under certain conditions. If D1 is flashing <BR>please
send me the code which I will explain below, which version of <BR>FPGA (C8 or
C7), which boards are installed, and whether you have any <BR>audio or other
problems. This may help me determine some issues in the
<BR>design. I would like this info from people that ARE having problems
and <BR>people that ARE NOT apparently having problems.<BR><BR>Code: D1
flashes a 4 bit value. Least significant bit is flashed
first<BR><BR>Here's what a value of 0 looks like<BR>
+---+ +---+
+---+
+---+ <BR>D1
---------+ +-----------+ +-----------+
+-----------+
+-----------+-----------------------------------<BR>
0 (LSB)
0
0 0
dead time between 4 bit flashes<BR>Here's what a
value of 4 looks like<BR><BR>
+---+ +---+
+----------+ +---+
<BR>D1 ---------+ +-----------+ +-----------+
+----+
+-----------+-----------------------------------<BR>
0
0
1 0<BR><BR>More
details can be seen near the bottom of the ozy_janus.v code if
interested.<BR><BR>Thanks<BR>Kirk
KD7IRS<BR><BR><BR></FONT></BLOCKQUOTE></DIV></FONT><DIV CLASS="aol_ad_footer" ID="5a1536d98bbdce9b686a88583f056ecb"><br/><font style="color:black;font:normal 10pt arial,san-serif;"> <hr style="margin-top:10px"/>Choose the home loan that saves you the most $$$. <A HREF=http://pr.atwola.com/promoclk/100126575x1221374924x1201371434/aol?redir=http:%2F%2Fclk.atdmt.com%2FDEG%2Fgo%2F153724534%2Fdirect%2F01%2F>Agents available at ditech.com</A></font></DIV></BODY></HTML>