Return to KLUBNL.PL main page

[Top] [All Lists]

Re: LF: 8970,022Hz

To: <[email protected]>
Subject: Re: LF: 8970,022Hz
From: "Markus Vester" <[email protected]>
Date: Wed, 4 Dec 2013 21:56:14 +0100
Authentication-results:; spf=neutral ( is neither permitted nor denied by best guess record for domain of [email protected]) smtp.mail=[email protected]; dkim=pass [email protected]
Delivered-to: [email protected]
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=20121107; t=1386190582; bh=jur4C599xMVrgiAcI0H7+kHqN5TitsCRSlPsHi+jWP4=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=JQKX7vy4hh+z3SU/Ybg63aGjKpcFBBeowIWryIVwX0e2uQdpzlHuCinggTMnxCI7O CFR0R95NEeyz1F7TNwm2vXuQ6XPKXkRLJJ0UHfzrpxIkR0ZI8DGC3j2NSHqaZrekZe cXGB65oHY0Fi9rCvr9PY0x9AlHRDFDmdeTq2jBzA=
Importance: Normal
References: <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Jim, Domenico,
my current SpecLab settings for VLF are accessible through the link at the bottom of the VLF grabber You can copy these files to your c:\spectrum folder, and start instances #16 (0...24 kHz) and / or #17 (8970 Hz 0.42 mHz) from the command line or from a desktop icon, eg:
 C:\Spectrum\SpecLab.exe /inst=17
Here the signals from the antenna are digitized in a small and cheap "3D sound" USB dongle (48 kHz, 16 bit, mono). After starting SpecLab, you will need to edit some parameters, eg. calibrated samplerates. My narrowband instance is a bit peculiar in that I went down to 32 kHz nominal samplerate, which is locked to a locally generated 13928.8737 Hz reference carrier derived from my Rb source. You might want to change that to another CW reference (eg. one of the Alpha QRGs, or 10 kHz from a GPS), or switch to 48 kHz samplerate and lock to one of the military MSK signals.
There is also a template for periodic FTP uploads. Alternatively, you could simply save screenshots to a Dropbox public folder.
Best 73,
Markus (DF6NM)

From: hvanesce
Sent: Wednesday, December 04, 2013 8:11 PM
Subject: RE: LF: 8970,022Hz

I have the same (or similar) question:

I have SpecLab running VLF RX almost continuously in some low-noise locations, and would like to put the output online for open access; but I don?t know how to port from SpecLab to my website. Should I post this question on the Yahoo Spectrum Lab site?






From: [email protected] [mailto:[email protected]] On Behalf Of STEM - Putignano (BA)
Sent: Wednesday, December 4, 2013 7:59 AM
To: [email protected]
Cc: [email protected]
Subject: Re: LF: 8970,022Hz


Hi all DR OM

i want to test this band and i'm looking to activate a grabber. Someone of you can provide me a suitable .usr file for Spectrum Lab for a 9k grabber ?
I have already downloaded the sw and i want to say a big thanks to DL9YHF for his super job.

73, Domenico/iz7slz

<Prev in Thread] Current Thread [Next in Thread>