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Re: LF: VLF - G3XIZ

from [Roger Lapthorn] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: VLF - G3XIZ
From: Roger Lapthorn <[email protected]>
Date: Fri, 31 Dec 2010 15:35:06 +0000
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Nothing seen here so far Chris.

73s
Roger G3XBM



On 31 December 2010 14:12, Andy Talbot <[email protected]> wrote:
Well that's its limit.  8137Hz sampling, 2M FFT for a .0039Hz bin size.   Will leave it running in the hope the frequencies displayed are as it says they are - not in a position to do a frequency-cal run at the moment.
 
 
On 31 December 2010 14:06, Andy Talbot <[email protected]> wrote:
Nothing here.   But with 15dB S/N at Jim's in a tenth of the bandwidth I'm looking it, and at at least twice the range, probably not surprising.    I'll try going narrower, but have never tested the SDR-IQ at these limits so not sure how the display / calibration holds up.
 
Andy
 
 


 
On 31 December 2010 14:01, Chris Osborn <[email protected]> wrote:
Dear Jim,

That looks very promising.
The balloons are still up and I'm back on QRSS 600.
I'll keep the TX going for a few hours or until the aerial comes down.

73 Chris G3XIZ

From: James Moritz <[email protected]> Sent: Fri, 31 December, 2010 13:54:28

Subject: Re: LF: VLF - G3XIZ

Dear Chris, LF Group,

I seem to have a trace on your frequency - see attachment. SNR is currently around 15dB with 1.5millihertz FFT resolution. It definitely wasn't there before ;-)

Cheers, Jim Moritz
73 de M0BMU






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