Gold Gun with Gemini III Transmitter

[WM6]

Taxma1981, you are a magician. 25 bronze coins at 100m - wow!!!.

Do you sell something?

[taxma1981]

I think i don t detect the 25 coins,this area 10×10 meter have more coins...i have a special ferrite antenna

[GOLDEN LILLY]

Taxma, what special ferrite do you have? Please give me information. I bought ferrite rod from Latvia on ebay. The size is 10mm diameter and 7.5 inches long. I experimented the number of turns and wire gauge. I clearly hear my analogue watch ticking from several inches. My problem now is the RMS converter and LCD display which is not available in my place. So, i intend to use spectrum analyzer apps for visual indication. The vlf Signal in my place is weak. I just hear the signal clearly last December 2016 but now no more. So i made a signal generator as transmitter based on the above schematic but lacks the distance because i have a little idea on the matched antenna for the circuit.
Please give information on your special ferrite. My email is errel74@yahoo.com.

[abdou2014]

Hi GOLDEN LILLY, please what sort of antenna do you use in your transmitter ?

[GOLDEN LILLY]

Hi Abdou, i am still experimenting on my transmitter. I used the above posted tx schematic. I am not sure if i got the correct or matched antenna because i am not an expert. I need more information and complete details for the correct tx power. I connected my coil directly from the output instead of through ferrite core transformer which is i think a wrong.
Here is my Gold Gun Transmitter....

[abdou2014]

Thanks nice job, can you poste the schematic of TX circuit pls ?

[GOLDEN LILLY]

I will give you the schematic through your email. I cannot post it without the permission of the owner who is a member of this forum.

[GOLDEN LILLY]

WM6, is loop antenna different from L2? What do you mean by intersection of loop antenna and L2? I need more clarification please....

[abdou2014]

thanks

faycal_44@yahoo.fr

[taxma1981]

Taxma, what special ferrite do you have? Please give me information. I bought ferrite rod from Latvia on ebay. The size is 10mm diameter and 7.5 inches long. I experimented the number of turns and wire gauge. I clearly hear my analogue watch ticking from several inches. My problem now is the RMS converter and LCD display which is not available in my place. So, i intend to use spectrum analyzer apps for visual indication. The vlf Signal in my place is weak. I just hear the signal clearly last December 2016 but now no more. So i made a signal generator as transmitter based on the above schematic but lacks the distance because i have a little idea on the matched antenna for the circuit.
Please give information on your special ferrite. My email is errel74@yahoo.com.

Try with more turns 500+500 or more,i use 2 ferrite 15cm

[WM6]

WM6, is loop antenna different from L2? What do you mean by intersection of loop antenna and L2? I need more clarification please....

Intersection mean surface of intersected wire in square mm (mm2) or Cross sectional area.

par example:

If L2 is 1 turn coil of wire 3mm in diameter and Loop antenna is 200 turns of wire 0.22mm in diameter, if converted in Cross sectional area:

1T/3mm=1x7mm2=7mm2 < 200T/0.22mm=200x0.04mm2=8mm2

so if we compare Cross sectional area: 7mm2 < 8mm2

This suit to rule that total of Cross sectional area of Loop antenna should not be less than Cross sectional area of L2.

[GOLDEN LILLY]

WM6, thank you for your explanation. However, i still do not understand the coil construction. Is the secondary winding the loop antenna itself? or there is another loop coupled in the said secondary winding? Please make a drawing...

[WM6]

WM6, thank you for your explanation. However, i still do not understand the coil construction. Is the secondary winding the loop antenna itself? or there is another loop coupled in the said secondary winding? Please make a drawing...

There is drawing in post #40.

Loop antenna is connected to L2 (output L2 wire to input loop antenna wire).

But this was only explanation to abdou2014 previous question and as I say, it is practically nonsense to connect loop antenna this way (in contrary to telescopic antenna).

Loop antenna can be (much better) connected instead of L1 (L1 act in this case as loop antenna). Of course in this case L1 should be wound (dimensionally and by other parameters) as loop VLF transmitting antenna (and not as one simple inductor).

[abdou2014]

What is the position of the ferrite antenna and a telescopic antenna transmitter for nulling ?

[abdou2014]

I want to add an emitter