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Re: LF: Re: 9kHz noise level

from [Roelof Bakker] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Re: 9kHz noise level
From: "Roelof Bakker" <[email protected]>
Date: Tue, 02 Mar 2010 13:10:03 -0000
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Hello Paul,

Thank you for providing these interesting graphs.
Which program do you use for these graphs?

I presume that the antenna is directly connected to your soundcard.
Is this correct?

I am using a PERSEUS SDR for VLF reception.
However, it has a rf-isolating transformer at the input.
So reception below 10 kHz is out of calibration and just marginal at 8.97 kHz.
The Alpha stations are received here 20 dB above the noise on an E-field probe. 

Best regards,
Roelof Bakker
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