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Re: LF: LF EbNaut

To: LF Group <[email protected]>
Subject: Re: LF: LF EbNaut
From: Riccardo Zoli <[email protected]>
Date: Thu, 27 Jul 2017 22:42:25 +0200
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Hello Stefan, Domenico, LF

Well decoded, Stefan. No problem ;-)
See attachments.

I have 2 GPS running at this moment:

1) NEO-M8N tuned @ 544000 Hz (136000 * 4) clocking the SDR RX.
2) NEO-7M tuned @ 10000 Hz, reference for SR correction in Spectrum
Lab (level @ -70dBfs in audio card)

All the best

73 de Riccardo IW4DXW

2017-07-27 17:52 GMT+02:00 DK7FC <[email protected]>:
> Hello Domenico, LF,
> Yesterday and today i sent a few messages to your grabber but got no decode.
> The SNR should have been fine. I checked if everything is ok on my side, it
> should be.
> Is it maybe on your side?
> Maybe Riccardo can check if he can decode the message from today 10 UTC?
> On my own RX i can decode the message with some frequency offset (-0.01)
> because the 10 kHz ref signal (still the old method here on LF RX) is
> overloaded, so there is no sample rate correction when i'm on air on LF. But
> the timing seemed to be ok at least!
> 73, Stefan
> Am 25.07.2017 18:31, schrieb Domenico IZ7SLZ:
>> Hello Stefan and LF,
>> Here is the report of recent EbNaut DK7FC's transmission on LF.
>> It is amazing how to get a decode using this mode over 1100 km in daytime
>> on summer  and in my urban receiving location plagued with electrical noise
>> at this hour.
>> Mni compliment Stefan for your very coherent signal and regarding your VLF
>> encouraging words, i confirm that soon i will try to use this linux setup on
>> "dreamer's" band. I need to built another location for receiving outside the
>> city. High QRN here in my urban shack for 8 kHz and below.
>> Aunt Melina is happy to host me and my radios in her farm  so i'm building
>> a duplicate of the setup in use here for the installation at AMF.
>> Gost32 helped me to clone the ubuntu pc. The 2nd GPS cabling is in
>> progress.
>> Most probably i will complete the VLF rx  in mid of August during my
>> vacation.
>> Thanks again for your signal Stefan.
>> 73 all
>> Domenico IZ7SLZ

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Attachment: DK7FC_4.png
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