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RE: VLF: W4DEX to IK1QFK at 8822Hz

To: <[email protected]>
Subject: RE: VLF: W4DEX to IK1QFK at 8822Hz
From: <[email protected]>
Date: Fri, 19 Dec 2014 12:23:24 -0500
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Impressive (low) system noise and agreement of Example 6 model with results.



-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Paul Nicholson
Sent: Thursday, December 18, 2014 5:14 PM
To: [email protected]
Subject: Re: VLF: W4DEX to IK1QFK at 8822Hz

 >  11dB @ 0.12fT and 278 uHz implies approximately  >  2fT/root-Hz
aggregate noise?

That's about right for a quiet night. That's after sferic blanking - before
the blanker the background is some 20dB or more higher.

The system noise floor is about 0.2 fT RMS in 1Hz.

There happens to be a fairly accurate model of the antenna and receiver in
example 6 of this program

which I've been working on for a few months.
LCnetgen may be handy for modelling LF/VLF antennas and coils.

Paul Nicholson

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