Lrl from Italy

[FrancoItaly]

Hi All
I post here all the information to build a working (for me) Lrl, the photo is not related to the last Lrl because now I'm not in Italy ( the 3 stylus antenna are not necessary).

Best Regards

[FrancoItaly]

I have forgotten the printed board

[Sneshko]

Bravo FrankoItaly!!!
Very, very good job.
Congratulations!
...and thank you very much!
Regards!
Sneshko

[FrancoItaly]

Hi Sneshko
As I said I'm not 100% sure that my Lrl is a "true" Lrl, certainly detects a strong signal around my test targets and in my last search in a mountain field I found 2 pieces of aluminum confirmed by my Spectra V3, but this is not a definitive proof. The Lrl detected also a strong signal at about 15 m but not confirmed by MD but the field was very difficult with many big stones.

Best Regards

[Morgan]

Originally Posted by Sneshko

Bravo FrankoItaly!!!
Very, very good job.
Congratulations!
...and thank you very much!
Regards!
Sneshko

Hello Sneshko

hope all is fine with you

I remember that you get the PDK-2.1 from Goran,well,still not finding nothing ? do you made more field tests?
From a few PDKs that I sold i come to conclusion that your country, Midle East,Italy and Germany need other frequency in the PDK to work fine,and this modification can be done very easy.
Send message for my email and i give you instructions how to adapt a frequency selector in your PDK-2.1
Actualy I build a few PDK-2.3 this with frequency selector,and is much better than the PDK-2.1, it was a PDK-2.1 owner who gave me ideia of frequencies selector , under my instructions he adapt 6 diferent frequencies in his PDK and get good results in field,is from Midle East country.

Others interested after read that ,and want to adapt the Freq. Selector ,also send me email.


regards

[Morgan]

Originally Posted by Morgan

Hello Sneshko

hope all is fine with you

I remember that you get the PDK-2.1 from Goran,well,still not finding nothing ? do you made more field tests?
From a few PDKs that I sold i come to conclusion that your country, Midle East,Italy and Germany need other frequency in the PDK to work fine,and this modification can be done very easy.
Send message for my email and i give you instructions how to adapt a frequency selector in your PDK-2.1
Actualy I build a few PDK-2.3 this with frequency selector,and is much better than the PDK-2.1, it was a PDK-2.1 owner who gave me ideia of frequencies selector , under my instructions he adapt 6 diferent frequencies in his PDK and get good results in field,is from Midle East country.

Others interested after read that ,and want to adapt the Freq. Selector ,also send me email.


regards

Here it is how to make the PDK-2.1 with a 3 options switch that can change the 77KHz standard frequency :

1- open the box cover carefuly,and on the right top part of the box you will find the cables who go for the RX coil, this cables as one 6N8 capacitor in paralel ,this cap. is responsable to keep the frequency.

2-cut the RX coil cables near the PCB , and cut the two legs of this 6N8 cap. at midle,and solder in this pins the two cables of the frequencies selector.
Make a hole on top of the box to install the selector.

this simple selector can help ONLY in countries that other frequencies work better than the standard 77KHz.

[Morgan]

Originally Posted by Morgan

Here it is how to make the PDK-2.1 with a 3 options switch that can change the 77KHz standard frequency :

1- open the box cover carefuly,and on the right top part of the box you will find the cables who go for the RX coil, this cables as one 6N8 capacitor in paralel ,this cap. is responsable to keep the frequency.

2-cut the RX coil cables near the PCB , and cut the two legs of this 6N8 cap. at midle,and solder in this pins the two cables of the frequencies selector.
Make a hole on top of the box to install the selector.

this simple selector can help ONLY in countries that other frequencies work better than the standard 77KHz.

[Morgan]

Originally Posted by Morgan

Here it is how to make the PDK-2.1 with a 3 options switch that can change the 77KHz standard frequency :

1- open the box cover carefuly,and on the right top part of the box you will find the cables who go for the RX coil, this cables as one 6N8 capacitor in paralel ,this cap. is responsable to keep the frequency.

2-cut the RX coil cables near the PCB , and cut the two legs of this 6N8 cap. at midle,and solder in this pins the two cables of the frequencies selector.
Make a hole on top of the box to install the selector.

this simple selector can help ONLY in countries that other frequencies work better than the standard 77KHz.

one little mistake, no need to cut the coil cables,just cut the capacitor 6n8 and connect the selector tho the PINs in the circuit.

[Morgan]

Originally Posted by Morgan

Hello Sneshko

hope all is fine with you

I remember that you get the PDK-2.1 from Goran,well,still not finding nothing ? do you made more field tests?
From a few PDKs that I sold i come to conclusion that your country, Midle East,Italy and Germany need other frequency in the PDK to work fine,and this modification can be done very easy.
Send message for my email and i give you instructions how to adapt a frequency selector in your PDK-2.1
Actualy I build a few PDK-2.3 this with frequency selector,and is much better than the PDK-2.1, it was a PDK-2.1 owner who gave me ideia of frequencies selector , under my instructions he adapt 6 diferent frequencies in his PDK and get good results in field,is from Midle East country.

Others interested after read that ,and want to adapt the Freq. Selector ,also send me email.


regards

Here is another type of selector with 12 cap. options ,see the values :

[michael]

Originally Posted by Morgan

Here is another type of selector with 12 cap. options ,see the values :

Attachment 18661

Attachment 18662

Attachment 18663

Hi everybody and especially you Morgan.
What a good and neat work!!! It seems very helpful. I again say you my especial thanks and again congratulations for building Such working locator and after-sale services.

[ali02]

Hi FrancoItaly
I made your LRL with SMD components, but I don't know how much to tune the potentiometer screws to adjust it? (I'm looking for gold)
But sometimes when I tune the potentiometers, and walk to the refrigerator door, the LED lights up and the speaker beeps, and when I walk away from the refrigerator, the lights go out and the speaker does not beep!
Also, when I walk to the place where the toilet well has been dug, the lights and speakers turn on!
Does this device detect a magnetic field or ions?
Best Regards

[FrancoItaly]

Originally Posted by ali02

Hi FrancoItaly
I made your LRL with SMD components, but I don't know how much to tune the potentiometer screws to adjust it? (I'm looking for gold)
But sometimes when I tune the potentiometers, and walk to the refrigerator door, the LED lights up and the speaker beeps, and when I walk away from the refrigerator, the lights go out and the speaker does not beep!
Also, when I walk to the place where the toilet well has been dug, the lights and speakers turn on!
Does this device detect a magnetic field or ions?
Best Regards

I don't know (and I don't know if there is) a frequency just for gold. It is normal for there to be many sources of disturbance in the home. Very little is known about the phenomenon, indeed according to "normal" science it does not exist. In my opinion, since it works with an antenna, it is an electromagnetic field.

[FrancoItaly]

I would like to warn those who intend to make the 20Mhz version of my lrl to wait because, while the first one works perfectly, the other two, which I did later, have problems with signal instability. I am making substantial changes and think I have solved the problem. I will post the changes as soon as possible.

[bahrymed]

Good luck mister franco
waiting for your new lrl

[Pahom]

Originally Posted by FrancoItaly

I would like to warn those who intend to make the 20Mhz version of my lrl to wait because, while the first one works perfectly, the other two, which I did later, have problems with signal instability. I am making substantial changes and think I have solved the problem. I will post the changes as soon as possible.

Good evening Franco! Did you solve the problem with signal instability?

[DrTech]

Originally Posted by FrancoItaly

Hi All
I post here all the information to build a working (for me) Lrl, the photo is not related to the last Lrl because now I'm not in Italy ( the 3 stylus antenna are not necessary).

Best Regards

Hi FrancoItaly..

The diodes D1 and D2 (1N414 I think it would work better OA91 or 1N34, improve the reception.

[FrancoItaly]

Hi All
Diodes 1N4148 work well for this purpose, that's about 5Mhz and large voltage, about 3V.

Best Regards

[BENZINAS]

tell us some details about the lrl , how it works and what is supose to detect , gold , silver , fresh buried , old buried , distances of detection , tell us about the function !

[FrancoItaly]

Hi BENZINAS
All the Lrl that I know they clams that detect only long time buried metals and my lrl is the same. with 99% certainty I think that in my test field my Lrl detects 5 silver coins at about 2 meters and a small gold bracelet at 1.5 meters. These targets were buried 2 years ago. I have posted here all details for to build my Lrl and I hope someone manages to get my same results. This forum has become just a place where we discuss if the Lrls will work or not. I can definitely say that my Lrl in certain places it emits a strong signal that does not depend on the orientation, or walls or trees. Instead is very sensitive to strong electromagnetic emissions as near transmitter antennas.

Best Regards

[belalhpc]

Dear
I'm glad your experience that you have made and thank your credibility in your view. I hope if you added a video of how the device works. And what price Approximate him if you want to make me a piece.
New note I amateur in this area and look for something cheap, because I do not have a lot of money.
As you know, devices from large companies we can not buy them.
Thank you very much.

[wtrk]

Thnaks...

[darkman]

Dear FrancoItaly
Thank you for sharing your lrl
I built this one i have silly question how its work ?????
the led is going on and off when i change the value of p3
but p1 and p2 didn't make any change at the led
how to test your lrl ??
how can i know that is working ?

best regard

[FrancoItaly]

With P1 you change the frequency, the better is about 2.5 - 3Mhz (the max frequency for CD4046). With P2 you change the amplitude of the signal, the better is at point (X) (the TR4 collector) a 2 -4 Volt peak to peak, with the scope you must have a good sine curve, not distorted. If you touch the antenna the output signal must decrease. You must have a test field with buried metals (gold, silver or copper) for at least a few months.
Regards

[darkman]

thx Franco bud for all this info's
i will try my best and will tell u the results very soon

Regards

[du6r]

Dear FrancoItaly
you have great work's with lrl
i just built one of your's with (IC)
on manual test with cell phone the led is lighting up
when i touch the antenna the led is get off
when did i know that the lrl is ready to start locating in range field
now is there any video show how to adjustment the p1 > p2 > p3??? or explain how to work with your lrl ? its seem to me its OK with hand test but what about detect metal
underground dose it working with metals in field range
**** From where can i take the signal line for display circuit (I mean the ic lrl)
how do i now that's the lrl is working in field
should the led light when i but golden ring close to antenna ?
too many question in my mind
can i get your e.mail plz i really need to contact with you
Sorry for my bad English
thank you