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Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz

from [Paul Nicholson] [Permanent Link][Original]
To: rsgb_lf_group@blacksheep.org
Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz
From: Paul Nicholson <vlf0403@abelian.org>
Date: Sun, 15 May 2016 19:23:53 +0000
In-reply-to: <5738AD23.1030300@posteo.de>
References: <40b8e5c6692149a7911fe77631ebb33b@kabelmail.de> <572BB679.2040107@posteo.de> <572BE449.5010806@abelian.org> <279E0DEFDAFA4C849152DBBA3BFEDE8C@White> <572C5E72.7010404@posteo.de> <912731037.20160506233059@mterrier.net> <572D1111.9030302@posteo.de> <572D9843.7060402@abelian.org> <572DBBD3.3020709@posteo.de> <572DC660.5050007@abelian.org> <572E4BF7.1060103@posteo.de> <572F9120.2010200@abelian.org> <5732F442.2050105@posteo.de> <5732F9E8.1090604@abelian.org> <57343F5D.5030502@posteo.de> <5734D996.8080203@abelian.org> <57351A13.3050802@posteo.de> <57357B06.6030701@abelian.org> <57370503.6030803@abelian.org> <57371C03.5040906@posteo.de> <57379EB7.6080905@posteo.de> <5738A8EE.2@abelian.org> <5738AD23.1030300@posteo.de>
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User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 
Reconstructed carrier of the successful 2016-05-14_21:40:02
message

 http://abelian.org/vlf/tmp/160515a.gif

S/N is 19.15 dB.

The unsuccessful message 2016-05-13_00:00:02

 http://abelian.org/vlf/tmp/160515b.gif

S/N is 11.67 dB.

Noise was 4.63 dB higher and the signal 2.86 dB weaker.

About 3dB too weak to decode.

Looking forward to the 19 char decode. With these signal
and noise variations, there's an element of luck involved!

--
Paul Nicholson
--
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