Re: LF: Russian Alphas not QRT but QRP ?

[David Hine <evad_hine@yahoo.co.uk>]

Hi Tom,

It's good to get your Email. The QTH is London, and the main reason I replied was to explain that VLF signals also go through QSB.

It seems the lower the frequency, the longer the QSB. I'm not certain if that's the cause of the Alpha fade downs, but it's quite likely.

I would not think they would deliberately reduce their transmitter powers -with VLF, the more power, the better.

The 'Tesla' radio concept is a very difficult one to explain to anyone 'technical', because it requires a total 'mind clearance' of all previous 'learned' knowledge regarding radio transmission principles. Whenever I have got into discussion regarding the Tesla system, it always ends with arguments challenging the workings, and actually being 'banned' on a forum as a 'heretic'. It also led to the final demise of the Elfrad group some time ago. 

I don't think any Amateurs research stuff below 10 Hz, so I'm 'on my own' down there, with the exception of a German ELF receiving enthusiast who has contributed to the Radio Below 22 kHz website.

The plan here is to complete a VLF / LF transmitter working on the same principle, and join in the VLF TX experiments with other Amateurs.

That will be the best way to take this forward. Also the new VLF 'Tesla' transmitter will cover the LF 136 kHz amateur band, and the Long Wave broadcasting band, with suitable matching arrangements, so that could prove interesting.

With very kind regards, David 

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From: DK1IS <DK1IS@kabelmail.de>
To: rsgb_lf_group@blacksheep.org
Sent: Friday, 9 February 2018, 23:36
Subject: Re: LF: Russian Alphas not QRT but QRP ?

Hi David,

most interesting! - Could you give some more information about QTH, TX and "Tesla" antenna?

Tu es 73,
Tom, DK1IS

Am 09.02.2018 um 21:44 schrieb David Hine:

Hi, I do transmitting on ELF occasionally on a frequency of 1.6 Hz using a 'Tesla' antenna, giving a global range (screenshot example from Kiruna, Sweden, attached). It is likely to be a 'QSB' fade out, and at ELF, these can last for many days. I have noticed this often on my transmitted ELF signals, with a 2 week QSB period being the average.

Kind regards, David

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