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LF: Recorded data for cross-correlation

To: [email protected]
Subject: LF: Recorded data for cross-correlation
From: Daniele Tincani <[email protected]>
Date: Thu, 10 Feb 2011 06:24:34 -0800 (PST)
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Hello Paul, VLF,
 
please found at following link:
 
 
a 1MB WAV file containing about 5 seconds of the signal out from my simple antenna system (small loop, pre-amp, transformer, sound card) sitting on my balcony. It was recorded with the audio settings of SpecLab configured for 96 Ksamples/s and 24 bits/sample.
 
The 26 KHz signal was not present, but TBB, DHO38, NAA were.
 
The recording was started at 13:54:00 UTC.
 
Best regards
Daniele
 
 
----- Forwarded Message ----
From: Paul <[email protected]>
To: [email protected]
Sent: Wed, February 9, 2011 12:40:16 PM
Subject: Re: [VLF_Group] Re: Transmission on 26.0 KHz

 


Daniele wrote:
> I could try to record something tomorrow,
> if it can be of some help.

Yes, that would be useful. To begin with, it doesn't
matter if 26kHz isn't transmitting - we just need Bafa
to be on the air so that we can see if cross-correlation
is possible and how sharp it is. If that works, I
can try to locate DHO or NAA as a test..

> I assume that recording the input stream in WAV
> format from inside SpecLab is OK.

That would be ideal.

I guess just five seconds or so at 96k samples/sec would
be enough. Hopefully sample rate errors wont be a problem.
Not sure how to read a timestamp from WAV metadata - I'll
have to look that up.

Anyway, no rush. I probably wont have time to do anything
with it until Friday.
--
Paul Nicholson
--



 


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