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Re: LF: VLF Tinkering

To: [email protected]
Subject: Re: LF: VLF Tinkering
From: Paul Nicholson <[email protected]>
Date: Mon, 09 Nov 2015 18:06:04 +0000
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Joe VO1NA wrote:

> A GPS unit is now on hand.  It provides NMEA strings but
> I'm not sure about the pps.

PPS essential if you're using Spectrum Lab or vlfrx-tools.

The GPS that I use these days is this one

After some arithmetic and comparison with other signals,
I reckon that if you can muster 40uW, it will be possible
to decode messages at 8277 Hz here the UK, and 20uW would be
enough for a carrier detection.    That assumes a suitably
precise oscillator.

Paul Nicholson

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