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Hi, <br>
<br>
I can confirm that, but these are not so strong I'm using clamp on
choke right<br>
after Mercury input. Removing that choke makes spurious bigger,
even non-moving<br>
0Hz spurious is bigger without the choke. <br>
<br>
<br>
Ozy 1.9<br>
Mercury 2.9<br>
Penelope 1.4<br>
PowerSDR 2.2.3<br>
<br>
<br>
73's,<br>
Riho, ES7AAZ.<br>
<br>
26.09.2011 13:00, Helmut Oeller kirjutas:
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<div class="Section1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi
Mike,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I can confirm the same ‚phenomenon’, using
mercury_eu
(V6.4) and Joe’s 1.9.3.4 diversity20 (10AUG2011).<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">73 Helmut, DC6NY<o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a class="moz-txt-link-abbreviated" href="mailto:hpsdr-bounces@lists.openhpsdr.org">hpsdr-bounces@lists.openhpsdr.org</a>
[<a class="moz-txt-link-freetext" href="mailto:hpsdr-bounces@lists.openhpsdr.org">mailto:hpsdr-bounces@lists.openhpsdr.org</a>] <b>Im
Auftrag von </b>Mike Stevenson<br>
<b>Gesendet:</b> Montag, 26. September 2011 11:25<br>
<b>An:</b> <a class="moz-txt-link-abbreviated" href="mailto:hpsdr@lists.openhpsdr.org">hpsdr@lists.openhpsdr.org</a><br>
<b>Betreff:</b> [hpsdr] Mercury and 28Mhz receive<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">I
have been spending quite a lot of time operating on </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">10m
now
is open again.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">There
has
always been a higher level of spurious signals on this
band than any other
even with Mercury input terminated directly in 50 ohms.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">What
I
am now seeing using Doug's, W5WC software with zero
frequency IF is
between about 28.300 and 28.650 a spurious signal at 0Hz
in the receive pass
band.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Also
I
am hearing what sounds like intermod produced by other
signals
in the display pass band producing an audible output. I
have see the
effect produce by signal of only S7. Also at the same time
I see the 0Hz
spurious being modulated by the off frequency S7 signal.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">The
above
applies to Doug's software 1.19.3.4, 1.19.3.5 and 2.2.3.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Using
Bill's
KD5TFD</span> <span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">software
with
9Khz IF I see much the same spurious on the spectrum
display but 0Hz
spurious is offset by 9Khz and so far have not detected
any unwanted products
in the audio output.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Current
cards</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Mercury
V2.9</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Pennylane
V1.4</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Metis V1.4</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Excalibur</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Alex</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Has
anyone
else seen this or do I have a one off problem.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Mike
G8ALS</span><o:p></o:p></p>
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