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Date: Mon, 20 Jun 2011 23:08:52 +0200
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Subject: Re: LF: New in VLF with Spectrum Lab
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Hi Alex,
The only MSK signal which can completely be decoded with SL at the
moment is DGPS (on MF) and G3PLX Varicode (known from PSK 31). The VLF
transmitters cannot be decoded - only demodulated, and used as a
frequency reference. Details are here:
http://www.qsl.net/dl4yhf/speclab/frqcalib.htm#MSK_signals
It's important to have the two spectrum lines in the spectrum of the
squared signal. If not, it's most likely not a VLF MSK transmitter. NPM
is too weak here to say what the spectrum should look like.
To avoid hijacking this reflector with software specific details, I can
send more details through the Spectrum Lab User's group.
Feel free to join it :
http://tech.groups.yahoo.com/group/SpectrumLabUsers/
All the best,
Wolf DL4YHF .
Am 20.06.2011 19:17, schrieb Alejandro D Alvarez LU8YD:
>
> Hi Wolf:
>
> I am new with Spectrum Lab, I trying to decode VLF signal ( MSK??)
>
> My QTH locator is FF51XB and I am receiving signals in:
>
> 15.600 18.300 20.500 21.400 (strong NPM?) 22.700 streaming..
>
> And 21.100 intermitent tx
>
> I need help for correct Spectrum Lab setup to decode these signals..
>
> Could you help me?
>
> Thanks in advance.!
>
> Alex LU8YD
>
>
>
> __________ Información de ESET NOD32 Antivirus, versión de la base de
> firmas de virus 6221 (20110619) __________
>
> ESET NOD32 Antivirus ha comprobado este mensaje.
>
> http://www.eset.com
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Hi Alex,<br>
<br>
The only MSK signal which can completely be decoded with SL at the
moment is DGPS (on MF) and G3PLX Varicode (known from PSK 31). The
VLF transmitters cannot be decoded - only demodulated, and used as a
frequency reference. Details are here:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.qsl.net/dl4yhf/speclab/frqcalib.htm#MSK_signals">http://www.qsl.net/dl4yhf/speclab/frqcalib.htm#MSK_signals</a><br>
<br>
It's important to have the two spectrum lines in the spectrum of the
squared signal. If not, it's most likely not a VLF MSK transmitter.
NPM is too weak here to say what the spectrum should look like.<br>
<br>
To avoid hijacking this reflector with software specific details, I
can send more details through the Spectrum Lab User's group.<br>
Feel free to join it :<br>
<br>
<a class="moz-txt-link-freetext" href="http://tech.groups.yahoo.com/group/SpectrumLabUsers/">http://tech.groups.yahoo.com/group/SpectrumLabUsers/</a><br>
<br>
All the best,<br>
Wolf DL4YHF .<br>
<br>
Am 20.06.2011 19:17, schrieb Alejandro D Alvarez LU8YD:
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<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);">Hi Wolf:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">I am new with Spectrum Lab, I trying
to decode VLF signal ( MSK??) <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">My QTH locator is FF51XB and I am
receiving signals in:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">15.600 18.300 20.500 21.400 (strong
NPM?) 22.700 streaming..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">And 21.100 intermitent tx<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">I need help for correct Spectrum
Lab setup to decode these signals..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">Could you help me? <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">Thanks in advance.!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);" lang="EN-US">Alex LU8YD<o:p></o:p></span></p>
</div>
<br>
<br>
__________ Información de ESET NOD32 Antivirus, versión de la base
de firmas de virus 6221 (20110619) __________<br>
<br>
ESET NOD32 Antivirus ha comprobado este mensaje.<br>
<br>
<a moz-do-not-send="true" href="http://www.eset.com">http://www.eset.com</a><br>
</blockquote>
<br>
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