Lrl from Italy

[detectoman]

in my field where i buried 30 coper coins in past months i try my pd then i take a further signal, then after i of new try my pd the signal dissapared i can understand those pd need a atmosferic conditions specifis for operation

en mi campo donde yo pruebo enterre 30 monedas de coobre, en pasados meses yo probe mi pd lrl entonces yo obtuve una fuerte señal, entonces despues de nuevo meses despues yo pruebo mi pd y la señal desaparecio, yo puedo entender que estas pd necesitan especificas condiciones atmosfericas para funcionar, tal vez aun las etapas de la luna les afecten, las alineaciones planetarias, el sol y la temporada del año

[mustefa ubram]

Originally Posted by mustefa ubram

hi franco
how are you today dear ?
franco Please explain a little about the details L1?(TURN-NUMBER WIRE- Diameter OF coil-
Capacity?)
I built with wire diameter 10 mm diameter of coil 10 mm and 3round
is this correct ?

hi franco
i have a question

[FrancoItaly]

Hi Mustefa,
Now I'm in Italy, before I don't see your post. Yes the coil is 10mm diameter, long 10mm and 3 turns. The capacitor is 22pF but today I have used a variable capacitor 4-20pF and in the next day I go in my test field. perhaps I can discriminate gold...
Best Regards

[mustefa ubram]

Originally Posted by FrancoItaly

Hi Mustefa,
Now I'm in Italy, before I don't see your post. Yes the coil is 10mm diameter, long 10mm and 3 turns. The capacitor is 22pF but today I have used a variable capacitor 4-20pF and in the next day I go in my test field. perhaps I can discriminate gold...
Best Regards

Tank you very much franco

[mahinda]

hi..... I am mahinda ...please send this circuit diagrams with details
thank you

[FrancoItaly]

Look here:

http://www.longrangelocators.com/for...t=18933&page=9

[FrancoItaly]

The coil L1 is better if it consists of 2 turns and for greater sensitivity you must shield the entire box with aluminum adhesive except the cover of the input stage, as seen from the photos. The shielding must be connected to the ground of the input circuit. The handle must be at least 20 cm long with a diameter of 4 cm or 5cm, also to have maximum sensitivity you must hold the handle with both hands. The best antenna is a stylus 80cm-100cm. With 30cm it has the minimum sensitivity, the greater the length the greater the sensitivity. With these changes, it is possible to detect targets that were previously ignored, such as, for example, short time metals buried (1 month or more) in your test field.

[mustefa ubram]

Originally Posted by FrancoItaly

The coil L1 is better if it consists of 2 turns and for greater sensitivity you must shield the entire box with aluminum adhesive except the cover of the input stage, as seen from the photos. The shielding must be connected to the ground of the input circuit. The handle must be at least 20 cm long with a diameter of 4 cm or 5cm, also to have maximum sensitivity you must hold the handle with both hands. The best antenna is a stylus 80cm-100cm. With 30cm it has the minimum sensitivity, the greater the length the greater the sensitivity. With these changes, it is possible to detect targets that were previously ignored, such as, for example, short time metals buried (1 month or more) in your test field.

hi franco.how are you ?
Congratulations Excellent.Why did you shield box?
What was the material of the box?wood or plastic?
If the box be made ​​of wood, does need a shield?
What is your opinion on fiber Pulygan?

[FrancoItaly]

Hi Mustefa,

The material is plastic and I think that any type is fine. By shielding the LRL is more sensitive with no false signals caused by the human body and, as I said, the higher sensitivity can make the difference in whether or not to reveal the buried metal used as a test. I do not know how does the wood, but you can try.

Best Regards

[WM6]

Wood is hygroscopic and can easily change its properties.

Wood is not really suitable for such sensitive design, even impregnated and lacquered not.

[FrancoItaly]

Hi WM6,

I agree with you, wood is poor insulator and poor electrical conductor, but with the aluminum shield I think that you can use. I prefer to use plastic panels that I find with ease.

Best regards

[brs]

HI franco

More sensitive L1 8turen

[brs]

http://cdn.top4top.net/i_50a7c8466d1.jpg

[FrancoItaly]

HI brs,
This is my lrl? What is the coil in the upper side of the box?
Best Regards

[mustefa ubram]

franco in your lrl with 8mhz frq and cap 22p The inductance L1 is about 180 Nanohenries ?true?
http://chemelec.com/Calculators/LC-Calculator.htm

[brs]

Hi Franco
This two in one device below the passive receiver only of Andreas and the top of your device

[brs]

TV almost 5meters led first Lights
two meters led first and led The second lights
After the one-meterThree lights on.
Sorry Translator Use

[brs]

Is it true Francoa amendments
P1= 10k
P2= 680k
L1 = 8 turen wire ,50mm

[FrancoItaly]

Hi Mustefa,

these data are ok.

Best Regards

[FrancoItaly]

Hi brs,
I will try the coil with 8 turns but with 3 turns and up to 100pF for the capacitor I had no results. Probably every country requires a particular frequency.
Best Regards

[Bill512]

Hi Franco, this is my version of your LRL ,the one with the 4046.
First of all, I want to say a big thanks to you, for sharing these schematics.
I don't know if these LRL actually working, but I strongly believe that you believe in these.
And this matters, sharing with everyone in this forum, something personally precious.
This ,at my opinion ,is the true spirit of collaboration in this forum.
Thanks again.
Bill

[FrancoItaly]

Hi Bill512,
Good work, I want to add that in this LRL can be added also the measure of the signal amplitude as in the LRL with quartz at 8MHz, in fact the amplifier is the same in the two cases. I have done this in a particular LRL to see if there were differences between the various metals by comparing measurements of phase and amplitude, but it seems that there is no difference.
Regards

[daniel]

Hi there

do someone have a PCB preferably in black and white from the LRL from post 68 ?

thanks very much

[Bill512]

Originally Posted by FrancoItaly

Hi Bill512,
Good work, I want to add that in this LRL can be added also the measure of the signal amplitude as in the LRL with quartz at 8MHz, in fact the amplifier is the same in the two cases. I have done this in a particular LRL to see if there were differences between the various metals by comparing measurements of phase and amplitude, but it seems that there is no difference.
Regards

Hi Franco,
while playing around with the FrancoPPL, I noticed that close to power sources or close to "potencial anomalies from buried metals", the Led goes off.
The same happens in the voltage at pin 1 of the LM358.
Is this normal? or maybe there is some mistake in my PCB?
regards

[Geo]

Originally Posted by Bill512

Hi Franco, this is my version of your LRL ,the one with the 4046.
First of all, I want to say a big thanks to you, for sharing these schematics.
I don't know if these LRL actually working, but I strongly believe that you believe in these.
And this matters, sharing with everyone in this forum, something personally precious.
This ,at my opinion ,is the true spirit of collaboration in this forum.
Thanks again.
Bill

Hey Bill artist....