Kapanadze and other FE discussion

[stivep]

Sergh
I must admit I was only now strike by the fact that:
-You are really good. I'm impressed.
But  I'm not at all worse in art of EM wave and more than that I'm confident  I am certain. I am sure. I have no doubt.
Could I be wrong ? Shure I can, but that would be a big surprise to myself too. - unless I'll make a simple mistake.
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The designers of these low-frequency generators did not pay attention to the impedance of the connector.
They just used it as a connector.
There is official documentation for this generator:
https://rw6ase.narod.ru/index1/pribor/generator/g3_120.djvu

It states that the nominal load resistance for this generator is 600 ohms. // 5 volts at the output.
Without load, ~1 megaohm,// 10 volts.
current in the load must not exceed 0.008 Amperes, otherwise it may lead to a malfunction of the device.

I agree
_{Диапазон частот: 5 Гц-500 кГц (5 поддиапазонов).
Пределы допускаемой основной погрешности установки:частоты: ±[3+(30/а)];
выходного напряжения: ±6 % (20 Гц-500 кГц); ±10 % (5 Гц-20 Гц).
Выходное напряжение: 5 В (600 Ом).
Коэффициент гармоник, %: 0,3 (20-200 Гц); 0,1 (200 Гц-20 кГц); 0,5 (20-200 кГц), 1 (200-500 кГц).
Нестабильность частоты: ±2·10-8 до 200 кГц; ±5·10-3 до 600 кГц (на 13 мин); ±2·10-2 (за 3 ч)
Сдвиг частоты (в режиме ЧТ): от 6 Гц до 2 кГц с дискретностью 1 Гц.
Параметры сигнала прямоугольной формы:амплитуда а В (600 OM);
скважность: 2.
Длительность фронта и среза: 50 нс.}
_____________________________________________________

At such low frequencies, the impedance of the connector does not matter much.

I agree for BNC connector only if it is a sort of compromise between 50 and 75 Ohm for
PSM-32 selective voltmeter  having generator build in
As you see on the picture  for 150 and 600 Ohm there  is separate input for Rx  and output for Tx
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HP3586B is  holding the same rules just a little  differently. - selective voltmeter no generator build in.
Signalcrafters model 110 uses BNC for unbalanced  and Banana plug  for balanced .
selective voltmeter  having generator build in
http://signalcrafters.com/Files/Model%20110.pdf
but :
- impedance of a transmission line and matching load is very important  at any frequency.

[stivep]

Estimate the size of these surface waves for a frequency of 10 kilohertz.
They will be many times the length of the entire wire and the free space around.
And how can it work?
These guys will not get any low-frequency surface waves at all.
If they pulled their wire between the Moon and the Earth, then maybe it would work like the Goubau line.
But you would also need cyclopean horns at the ends of this conductor to transform the impedances.
If you are going to create low frequency waves on the surface of the Earth - then ok.
You are using a planetary scale and you need an appropriate huge system to create them. Like Tesla's Wardenclyffe Tower.

Well:
Size of the wave period ( frequency) is not important - not so much important - important to the extend but.. we can deal with it.
- Depends from the situation and  goal to be achieved .
e.g. 1/10 000 of the wavelength antenna  still works at VLF and tunes  not as sharp as you might  think it would.
Efficiency is not that critically bad and Bandwidth is still acceptable for modern technology.
However - there is  not much technology there  or hardly any at VLF.
Basic stuff.

Goubau line has  many variations. Russian experimenters  didn't obey  impedance match exactly but close enough. ( ~5m distance  from Rx to Tx)
Effect was not Avramienko as they  used Sinusoidal  AC /
Professional equipment  working at VLF  made for PLC was at must  to help accurate impedance match -applicable  at 500kV  power lines
where  tuned traps must have been  installed.
https://en.wikipedia.org/wiki/Line_trap
This equipment we used  for 17kHz Tesla Coil  impedance matching.


Note: the (  red/black. )wire on the pictures  is shown as coiled  but normally it must be 5cm of space between them
All  of the devices are made to be AC or Battery operated at the environment of a very heavy interference field . typical to PLC
Note:  On the pictures below  you see primary  winding of Tesla  coil.

Wesley

[stivep]

more is here: https://overunity.com/17735/kapanadze-and-other-fe-discussion/msg579717/#msg579717
I was measuring and impedance   matching at  frequency as low as 150Hz
Wesley

[kolbacict]

Someone needs to dispose of the old scrap. Soviet measuring instruments were often of poor quality even in their youth.

In Russia the mutant of soviet Union there are plenty of children and young  students who would be happy to have such
tool. $1 is now 91 ruble and  Russia do not  make anything they could buy.
I agree with kolbacict:

So turn out I'm so sentimental...

p.s.  Here are some more.
https://youtu.be/Rexp-XrbgIk

[stivep]

Here are some more.
https://youtu.be/Rexp-XrbgIk

https://youtu.be/ZdspnxjREiY?t=88
https://youtu.be/E_wUN5jpIEw?t=85
The guy understand not much, talks nonsense  but  he is able to  present  phenomena quite well.
Wesley