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<p>So I have done more measurements. Most products are below -80dBc
and can be considered as marginal , but there are still two pairs
of products that are in band and -60 and -63dbc. Among theses
products there is a pair which reduces when power is reduced , I
wonder why as it is not harmonics, maybe intermodulation between
carrier and spuriis? I'm not very confortable in generating these
products. I'll try the transverter output tomorrow to know what is
going on.<br>
</p>
<br>
<div class="moz-cite-prefix">Le 05/08/2016 à 19:24, Dominique DEHAYS
a écrit :<br>
</div>
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<p>Hi dave ,</p>
<p> </p>
<p>so there is something stange on mine. I have just tried to lsn
on a second 28Mhz RX taking care that it is not saturated. I TX
on 28.1 and looking up the band I've
found:+196/+251/+276/+451/+786/+1049/+1600Khz , and I suppose
the same down the band below 28.1. I have not measured the
relative levels yet , for sure the two I've written about in my
previous message were -60 and -63 , I'll tell abt the others
later.This is on the 10W output , but trying to reduce power
changes nothing on the spuriois levels I've measured yesterday</p>
<p> </p>
<p>73</p>
<p>Dom</p>
<p> </p>
<p> </p>
<blockquote style="padding-left: 5px; margin-left: 5px;
border-left: #ff0000 2px solid;">> Message du 05/08/16 18:45<br>
> De : "Dave" <a class="moz-txt-link-rfc2396E" href="mailto:g4fre@g4fre.com"><g4fre@g4fre.com></a><br>
> A : "'Dominique Dehays'" <a class="moz-txt-link-rfc2396E" href="mailto:f6dro@wanadoo.fr"><f6dro@wanadoo.fr></a>,
<a class="moz-txt-link-abbreviated" href="mailto:hpsdr@lists.openhpsdr.org">hpsdr@lists.openhpsdr.org</a><br>
> Copie à : <br>
> Objet : RE: [hpsdr] ANAN 10 28Mhz tx spectrum and generated
birdie<br>
> <br>
> Hi Dom<br>
> <br>
> I saw nothing within -70dBC inband on my ANAN10 when using
the xverter port<br>
> on 28MHz . My Anan has been used on many 2/4m contests with
a Transverter<br>
> without complaints from my (VERY) locals<br>
> <br>
> This port does however have bad harmonics see<br>
>
<a class="moz-txt-link-freetext" href="http://g4fre.blogspot.co.uk/2013/11/anan-10-as-transverter-driver.html">http://g4fre.blogspot.co.uk/2013/11/anan-10-as-transverter-driver.html</a>
<br>
> <br>
> Dave<br>
> G4FRE<br>
> <br>
> -----Original Message-----<br>
> From: Hpsdr [<a class="moz-txt-link-freetext" href="mailto:hpsdr-bounces@lists.openhpsdr.org">mailto:hpsdr-bounces@lists.openhpsdr.org</a>] On
Behalf Of<br>
> Dominique Dehays<br>
> Sent: 05 August 2016 17:31<br>
> To: <a class="moz-txt-link-abbreviated" href="mailto:hpsdr@lists.openhpsdr.org">hpsdr@lists.openhpsdr.org</a><br>
> Subject: [hpsdr] ANAN 10 28Mhz tx spectrum and generated
birdie<br>
> <br>
> ***** High Performance Software Defined Radio Discussion
List *****<br>
> <br>
> <br>
> <br>
> Hello ,<br>
> <br>
> after getting a local friend complaining about hearing me
on several <br>
> frequencies , I've measured the anan 10 output spectrum ,
and was <br>
> surprised to find spuriis 295 and 590 Khz each side of the
carrier at <br>
> -60db/-63dB. I know it is within FCC norms but it is really
annoying.<br>
> Another problem is that the anan generates a wide drifting
birdie in my <br>
> 144Mhz receiver ( of course a separate receiver not the
anan). Anyone <br>
> got the same problems?<br>
> <br>
> 73<br>
> Dom<br>
> _______________________________________________<br>
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> </blockquote>
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