VLF: EbNaut data stacking

[Markus Vester <markusvester@aol.com>]

The SpecLab FFT-export files are ASCII files, so adding the numbers from two files is relatively trivial. Here's a tool which can also apply a complex weighting factor:

 http://df6nm.bplaced.net/VLF/fec_tests/add.zip

The archive contains source and exe, as well as a short explanation of how to use it. I haven't done much testing but it should be able to do the job.

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mo, 24. Apr 2017 15:20
Betreff: Re: LF: Re[2]: VLF: New carrier on 6470.005 Hz

Hello Markus, Eddie, Paul,

Thanks for the feedback, for trying and for the results.
Very strange. Paul has excellent results (as usual) but no decode for Eddie. On 8270 Hz, the 'difference' is much less expressed. Does it have to do with local QRM only? Maybe...
Maybe Alex has detected something.

Pauls results are particularly interesting. 1+1 = 1 * 2 = 3 dB. Proves the theory :-)

The stacking would help to solve the problems it seems :-) A tool is needed...

73, Stefan