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Re: ELF: ZEVS back on air

To: [email protected]
Subject: Re: ELF: ZEVS back on air
From: Wolfgang Büscher <[email protected]>
Date: Sun, 28 May 2017 14:26:08 +0200
In-reply-to: <[email protected]>
References: <[email protected]>
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Hi Luis,

I have some old VLF spectrograms which clearly show the ZEVS FSK. Scroll down a few pages on this site:

http://dl4yhf.darc.de/t/vlf_experiments.htm

73,
 Wolf DL4YHF .


Am 28.05.2017 um 13:59 schrieb VIGILANT Luis Fernández:
Signal dissapeared. Modulating FSK ?

Need another grabber to confirm

73 de Luis
EA5DOM


El 28 may. 2017 1:00 p. m., VIGILANT Luis Fernández <[email protected]> escribió:
Hi VLF

Just a try here ...... and there is a trce at 954uHz ! :-O

Spectrogram added to the bottom of my grabber

73 de Luis
EA5DOM


De: [email protected] [[email protected]] en nombre de Markus Vester [[email protected]]
Enviado: domingo, 28 de mayo de 2017 7:21
Para: [email protected]
Asunto: Re: ELF: ZEVS back on air

Wow Edgar, that's impressive! SNR about 25 dB in 0.16 mHz, presumably on an E-field antenna? You might add another data point to Fig 2 in http://ee.stanford.edu/~acfs/82Hz.pdf , showing an antipodal focussing effect. Can you possibly calibrate the signal level? It may be interesting to observe a possible day/night change.

Best 73
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: edgar <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 27. Mai 2017 23:49
Betreff: Re: ELF: ZEVS back on air

Hi Markus,

Someone from the other side of the world can see it too!

     

Regards, Edgar
Moonah, Tasmania.


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