LF: Recorded data for cross-correlation

[Daniele Tincani <danieletincani@yahoo.com>]

Hello Paul, VLF,

 

please found at following link:

 

http://www.megaupload.com/?d=MK0SVI5O

 

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 <paul@abelian.netcom.co.uk>
To: VLF_Group@yahoogroups.com
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
--