Many thanks Wolf, i will join SL group.
Alex.
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
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