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FrancoItaly
11-13-2013, 11:54 AM
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
11-13-2013, 12:14 PM
I have forgotten the printed board

Sneshko
11-13-2013, 05:22 PM
Bravo FrankoItaly!!!
Very, very good job.
Congratulations!
...and thank you very much!
Regards!
Sneshko

FrancoItaly
11-14-2013, 11:11 AM
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

DrTech
11-14-2013, 07:48 PM
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 (1N4148) I think it would work better OA91 or 1N34, improve the reception.

FrancoItaly
11-15-2013, 10:50 AM
Hi All
Diodes 1N4148 work well for this purpose, that's about 5Mhz and large voltage, about 3V.

Best Regards

BENZINAS
11-16-2013, 06:27 AM
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
11-16-2013, 11:10 AM
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
11-16-2013, 02:21 PM
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.

FrancoItaly
11-16-2013, 03:50 PM
Hi belalhpc
For the moment I have no video and I'm not at my home in Italy and I don't sell my Lrl, I'm only a researcher, but only as a hobby.
You have to look for a friend handy with electronics, the circuit is not difficult to achieve and do not need sophisticated instrumentation.

Best Regards

Funfinder
11-17-2013, 11:40 AM
Hi FrancoItaly

seems you have the correct attitude concerning real research and free available "helping together technical development methods" unlike most others here who play the big keepers of the holy grail or better: of the "holy but just grass finding cow" :D


Of course as long as you don't have tested this device through and through it could be a pure waste of time, work, money, motivation and other ressources for those who wanna have it or built it.

So please find some clever "excluding" test-ideas so you can go shure it really detects metal only.

There are simply too much magnetical, electrostatic, radio-frequency and even "cosmic" radiation and fields out there and its highly doubtful that metal objects which are in tight contact with wet soil will attract or reflect EM-energy very good.

If this stuff is not tested on a sophisticated basis it can detect virtually "anything" - and we really dont wanna find "anything"!


The whole stuff reminds me on my own electronic experiments as I was a child where the sound or noise starts when i moved my hand near some special wires (without touching). And wireless energy transfer from one coil to a nearby ferrite-coil-circuit containing a little lamp by radio-waves looked almost like magic to me. :D

The higher the amplification circuit, the more signal stuff it can detect. Especially if the device is grounded through the body and some metallic contacts at the handle.

However its good :) if the forum now is coming back to its technical basis after all this time containing just worthless opinion discussions without any hard provable facts.

FrancoItaly
11-17-2013, 12:06 PM
Hi Funfinder
I posted here "my supposed Lrl" just because somebody else might experience. No one is forced to realize my lrl.

Best Regards

jocelito
11-17-2013, 09:22 PM
Francoitaly
the circuit seems to work above 100 megaherts due to coil more capacitor 22pf

Morgan
11-18-2013, 01:18 AM
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

king40
11-18-2013, 06:37 AM
Hi Funfinder
I posted here "my supposed Lrl" just because somebody else might experience. No one is forced to realize my lrl.

Best Regards

HI francoitaly
I want build your lrl
Im New in the forum and lrl technique
How many antenna needs?
This is your Last pcb and schematic?
Thanks

FrancoItaly
11-18-2013, 11:03 AM
Hi jocelito and king40
The circuit oscillates at about 5 Mhz and it's "disturbed" by the signal from antenna filtered by L1/C1, but I don't know what kind of signal is, but it acts by decreasing the signal that goes to ground and then increasing the output signal. The antenna is a normal stylus or a small brass tube about 25 or 30 cm and yes this is my Last pcb and schematic. I have tried other solutions for the pcb but this is the only working and this makes the building a little difficult.

Best Regards

Morgan
11-19-2013, 11:50 PM
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
11-19-2013, 11:53 PM
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.

18656

18657

18658

18659

18660

Morgan
11-19-2013, 11:58 PM
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 :

18661

18662

18663

Morgan
11-20-2013, 12:18 AM
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.

Sneshko
11-20-2013, 08:58 AM
Dear Morgan!
Thank you very much!
All the best!
Sneshko

michael
11-20-2013, 11:13 AM
Here is another type of selector with 12 cap. options ,see the values :

18661

18662

18663

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

detectoman
11-20-2013, 10:10 PM
morgan may be you can put in series or parallel, two variable capacitor for fines frecuences adjust

Morgan
11-21-2013, 11:37 PM
morgan may be you can put in series or parallel, two variable capacitor for fines frecuences adjust

Hello


tests made here with the PDK-2.1 modificated with the 3 FREQUENCIES SELECTOR show that is very difficult to locate the buried gold when the LRL is calibrated using other frequencies than the standard 77KHz, however the other frequencies working better in other countries...

regards

detectoman
11-22-2013, 02:17 AM
morgan: i cant understand very good to you, how put you the capacitors, in serie coil or in parallel? if you put in parallel modifing frecuence? in serie what can happen? any know? thanks i havent a frecuence generator, how you see at what frecuence resonate the rx?

detectoman
11-22-2013, 02:21 AM
i can understand what cap, in parallel go resonance and serie go to frecuence? what is right? anybody know?

DrTech
11-22-2013, 06:32 PM
Hello


tests made here with the PDK-2.1 modificated with the 3 FREQUENCIES SELECTOR show that is very difficult to locate the buried gold when the LRL is calibrated using other frequencies than the standard 77KHz, however the other frequencies working better in other countries...

regards


Morgan, which is the best frequency for Mexico.

Regards...

mustefa ubram
11-22-2013, 07:30 PM
Hi jocelito and king40
The circuit oscillates at about 5 Mhz and it's "disturbed" by the signal from antenna filtered by L1/C1, but I don't know what kind of signal is, but it acts by decreasing the signal that goes to ground and then increasing the output signal. The antenna is a normal stylus or a small brass tube about 25 or 30 cm and yes this is my Last pcb and schematic. I have tried other solutions for the pcb but this is the only working and this makes the building a little difficult.

Best Regards
hi
Does not penetrate into the high-frequency(5mhz ). vlf Frequency is the best influence the ground.

goldfinder
11-23-2013, 03:13 AM
hi
Does not penetrate into the high-frequency(5mhz ). vlf Frequency is the best influence the ground.

There was quite a bit research during and after WWII in England to find UXEBs and high frequency (>1 MHZ) was used and successfully. ALso used later to find mineral metal deposits and also successfully.
Goldfinder

FrancoItaly
11-23-2013, 11:59 AM
Hi mustefa ubram

You forget that in Lrl operation it is the mountain that goes to Maometto and not vice versa, the "phenomenon" is around the buried target for many meters and the operational frequency of the Lrl I think it's not very important.

Best Regards

Morgan
11-23-2013, 04:26 PM
Morgan, which is the best frequency for Mexico.

Regards...

I think the standard 77KHz

detectoman
11-23-2013, 04:27 PM
francoitaly, may be your opinion is how the mineoro ions go at chamber carry by air, but in others lrl the electronic radiation came at meet joint then us need a resonance electronician frecuence, these radiation have field cardinal polarity, this only my opinion

Morgan
11-23-2013, 04:28 PM
I think the standard 77KHz

Anyway Mexico is big country and may need other frequency in some territories


robalocarapanda is using the 77KHz and already found objects,he is from Mexico.

Morgan
11-23-2013, 04:32 PM
Hi mustefa ubram

You forget that in Lrl operation it is the mountain that goes to Maometto and not vice versa, the "phenomenon" is around the buried target for many meters and the operational frequency of the Lrl I think it's not very important.

Best Regards

hello Franco

I try in my field test the PDK-2.3 with frequencies selector,and the one who locate the buried gold is the 77KHz, using the other frequencies locate very near or not locate...
However ,other frequencies maybe good for countries where the PDK not work very well.

regards

FrancoItaly
11-24-2013, 11:30 AM
Hi Morgan

I'm convinced that all the Lrl are passive receiver and they reveal only near oneself. My Lrl reveals change in internal oscillation by stylus antenna as input and your lrl reveals change in an external field at 77Khz (I suppose for radiocontrolled clocks) that is "modulated" by the phenomenon. For that are possible many solutions to build a Lrl and the key to boost a Lrl it would be to amplify directly the phenomenon.

Best Regards

detectoman
11-24-2013, 05:57 PM
the old buried metal are hot point centre where any rf or sun signal go to meet whit ground for natural discharges them are reactive whit ions in disbalance of metal sulfate, then produce active electronic halos at exterior

detectoman
11-24-2013, 06:03 PM
then how all charge electronic field is cardinally difused in polarities whit earth poles, but in countries whit near ecuador the atracttion semms most easy to east west, any lrl no work then due those was calibrate in other meridian

detectoman
11-24-2013, 06:07 PM
the earth how a great polarized magnetite, the magnetic field hig sensitive extreme of lrl cant work sometimes in any adverse magnetized planet regions

Morgan
11-25-2013, 12:48 PM
Hi Morgan

I'm convinced that all the Lrl are passive receiver and they reveal only near oneself. My Lrl reveals change in internal oscillation by stylus antenna as input and your lrl reveals change in an external field at 77Khz (I suppose for radiocontrolled clocks) that is "modulated" by the phenomenon. For that are possible many solutions to build a Lrl and the key to boost a Lrl it would be to amplify directly the phenomenon.

Best Regards

yes,i think you right, that make sense,as i told long time ago,the VHF signal from old ANALOGIC TV antenna was amplifying the PHENOMENON, once the ANALOGIC went to DIGITAL,i note that distance with PDK-2 was reduced .

regards

Morgan
11-25-2013, 12:59 PM
yes,i think you right, that make sense,as i told long time ago,the VHF signal from old ANALOGIC TV antenna was amplifying the PHENOMENON, once the ANALOGIC went to DIGITAL,i note that distance with PDK-2 was reduced .

regards

About boost the LRL, yes it is good ideia to boost the LRLs for distances of 1km to find big treasure, but for the single coins better stay the LRL to small distances becouse more easy to locate and pinpoint them,its my experience ,and some clients said to have found gold coin at 30 m ! maybe they exagerate ?

What is more strange,one forum client with PDK-2.1 recently found little hoard of copper coins 30m distance... I not found copper coins with PDK yet,think PDKs locate only noble metals... maybe the coins was all in very good condition with no patina ,no corrosion...


regards

Morgan
11-25-2013, 01:03 PM
the old buried metal are hot point centre where any rf or sun signal go to meet whit ground for natural discharges them are reactive whit ions in disbalance of metal sulfate, then produce active electronic halos at exterior

yes,i think you are right about that,its the ground battery,the PHENOMENON,we whait for our great LRL master Esteban to return to this forum and continue teaching us about LRLs and the PHENOMENON

18665

Nicolas
11-25-2013, 02:23 PM
Anyway Mexico is big country and may need other frequency in some territories


robalocarapanda is using the 77KHz and already found objects,he is from Mexico.

Yes Morgan you are Right is 77 Khz ....85 Khz

My Lrl works between this frequency 1......100Khz and is good.

Thank you Franco I improve your LRL and I want to put some video here after some

modification and experience.

Thanks all

nelson
11-25-2013, 03:16 PM
Morgan
So this means your coil is around 820 uH, correct?



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.

FrancoItaly
11-25-2013, 04:05 PM
Hi All
I always been a fan of ground battery to explain the phenomenon but I think that there are also other causes to bring the phenomenon above the ground. As a rule of thumb to form a battery takes two different metals immersed in an electrolyte and if the two metals are distant among them takes a certain time for the battery to be formed and this explains why it takes time because the phenomenon occurs. The other metal could be in the form of dissolved ions. Anyway the important thing is that many of us have verified that the phenomenon is real as Esteban has always said. I have always believed in Esteban and this helped me in all these years to continue my research.

Best Regards

nelson
11-25-2013, 05:06 PM
I agree 100% with your comments Franco

Hi All
I always been a fan of ground battery to explain the phenomenon but I think that there are also other causes to bring the phenomenon above the ground. As a rule of thumb to form a battery takes two different metals immersed in an electrolyte and if the two metals are distant among them takes a certain time for the battery to be formed and this explains why it takes time because the phenomenon occurs. The other metal could be in the form of dissolved ions. Anyway the important thing is that many of us have verified that the phenomenon is real as Esteban has always said. I have always believed in Esteban and this helped me in all these years to continue my research.

Best Regards

jocelito
11-25-2013, 08:34 PM
Nelson according to this coil is calculated online 628uH capacitor with 6.8 N frequency 77kh
http://www.energylabs.com.br/el/calculadora/lccalc

Nicolas
11-26-2013, 12:45 AM
Hi fanco here is your LRL. I make PCB to improve it and try to land with some modification on the choice of the frequency search.

And I give you the PCB to do and try.

FrancoItaly
11-26-2013, 11:47 AM
Hi Nicolas
Great work, at the moment I'm in Switzerland and I cannot test your pcb, but remember that the "secret" of my pcb is the double face, at the bottom there are 6 strip, one strip is in corrispondance with the TR3 collector and another strip is in corrispondance with the TR1 base, this causes a capacitive coupling of very few pF and then the stage becomes to oscillate. If with your pcb you have at the output a DC voltage of about 2-4v and the voltage drops when you touch the input then the lrl is working. The "phenomenon" increases the output voltage. My pcb is very critic and the inferior strips must be aligned with the superior strips but obviously the superior strips are cut properly to achieve the links between the components.

Best Regards

Nicolas
11-26-2013, 06:12 PM
Hi Nicolas
Great work, at the moment I'm in Switzerland and I cannot test your pcb, but remember that the "secret" of my pcb is the double face, at the bottom there are 6 strip, one strip is in corrispondance with the TR3 collector and another strip is in corrispondance with the TR1 base, this causes a capacitive coupling of very few pF and then the stage becomes to oscillate. If with your pcb you have at the output a DC voltage of about 2-4v and the voltage drops when you touch the input then the lrl is working. The "phenomenon" increases the output voltage. My pcb is very critic and the inferior strips must be aligned with the superior strips but obviously the superior strips are cut properly to achieve the links between the components.

Best Regards


Hi Franco good travel and retur
It is clear my brother. You are actually smart enough ;)
Good truck really. I really noticed that when I touch the antenna with my fingers.
I understand your explanation thank you Franco. can you tell me the interval between the strips (mean bands) and their widths

Thank you so much for your suggestion. (mean this) 8) ---| |--- >>> C = ..few.... pF

nelson
11-26-2013, 06:34 PM
Joselito

I think you are right, cause in my case i calculated 820 uH, but with lower capacitor values. Has this is an LC circuit, what it matters, is to get the resonant frequency between 55 Khz to 110 Khz

Regards
Nelson


Nelson according to this coil is calculated online 628uH capacitor with 6.8 N frequency 77kh
http://www.energylabs.com.br/el/calculadora/lccalc

FrancoItaly
11-27-2013, 11:13 AM
Hi Nicolas
I'haven't designed this pcb for this purpose, but I used an older pcb (that I designed as antenna for another Lrl) and at the beginning I wanted to build a RF sniffer in FM range as front end stage of my Lrl. This circuit works well as lrl but not as amplifier but as oscillator. I post here again my pcb where the pcb is also in its real dimensions. I have not really measured the capacity between strips. Try (with your pcb) a small capacitor ( 1 pF or less ) between TR3 collector and TR1 base, perhaps maybe you'll get lucky and can get an oscillation.

Best Regards

youssef
11-27-2013, 12:53 PM
Dear Franco:
Waiting for more pictures of close-circuit and video if possible.
And how we can use variable frequency by country in which we live.
The batteries used what voltage is it? I put a picture attached and I hope to clarify what there is inside the circle.
I ask you to forgive me for I am new in this regard.

matrix
11-27-2013, 12:57 PM
Hi all
many thanks to You Francoitaly for publishing your knowledge here.
perfect PCB nicolas , thank You , but where is L1 ? may it be separate from PCB? or is forgotten on your design?

All the best
matrix

FrancoItaly
11-27-2013, 04:36 PM
Hi All
I think that the frequency isn't important and depends on the characteristics of the circuit, it's around 5Mhz. Inside the circle there is L1. You must remember that the Lrl is a passive receiver/converter, It transforms the "phenomenon" by modulating an existing signal (the 5Mhz oscillator). As I said before I'm not sure that Nicoals' pcb works well because in my pcb the oscillations are generated by a parasite link from TR3 collector and TR1 base. If the oscillations are between TR3 and TR2 the "phenomenon" cannot influence the oscillator. I spent a lot of time to try to understand this circuit, other types of oscillators don't work.

Best Regards

Nicolas
11-27-2013, 06:38 PM
Hi all
many thanks to You Francoitaly for publishing your knowledge here.
perfect PCB nicolas , thank You , but where is L1 ? may it be separate from PCB? or is forgotten on your design?

All the best
matrix


Hi matrix thanks

the placement for L1 is betwenn J1 and J3 look here

Nicolas
11-27-2013, 06:53 PM
Hi Nicolas
I'haven't designed this pcb for this purpose, but I used an older pcb (that I designed as antenna for another Lrl) and at the beginning I wanted to build a RF sniffer in FM range as front end stage of my Lrl. This circuit works well as lrl but not as amplifier but as oscillator. I post here again my pcb where the pcb is also in its real dimensions. I have not really measured the capacity between strips. Try (with your pcb) a small capacitor ( 1 pF or less ) between TR3 collector and TR1 base, perhaps maybe you'll get lucky and can get an oscillation.

Best Regards

Hi dear Franco I put between Tr1 and Tr3 value of capacitor 1 ..to. 3 pF is good

But on the DC output is between 7 and 9.88V and not 2 to 4V. Yes oscillation is

I put that later because now I have problem with ISIS.

mustefa ubram
11-27-2013, 08:04 PM
Dear Franco:
Waiting for more pictures of close-circuit and video if possible.
And how we can use variable frequency by country in which we live.
The batteries used what voltage is it? I put a picture attached and I hope to clarify what there is inside the circle.
I ask you to forgive me for I am new in this regard.
I believe that this circuit does not work.frq is hight .




We need to lower frequency about 20khz

FrancoItaly
11-28-2013, 10:48 AM
Hi Nicolas
You have to lower the value of the capacitor C5 (330 pF or 270 pF) or the capacitor C7 (470 pF) then adjust the variable capacitor C6 for 2-5V at output, the important thing is that output is not saturated. Remember that few picofarad are sufficient to bring the output from zero to max voltage.

For mustefa ubram
The circuit works very well with this frequency (only with this frequency). The battery are 2 X 9V battery for 18V power.

Best Regards

Geo
11-29-2013, 08:57 PM
Hi Franco.
I believe that this schematic works very good at your area, but don't work at my field test. I afraid that "phainomenon" is not strong at my area. Also Alonso's PD, PDK, Mineoro Fg80, DCH 85 etc don't catch the phainomenon. Only a modificated MFD by Andy flind catch it a little.
Maybe i must try at other areas.

Regards:)

Nicolas
11-29-2013, 11:29 PM
Hi Franco.
I believe that this schematic works very good at your area, but don't work at my field test. I afraid that "phainomenon" is not strong at my area. Also Alonso's PD, PDK, Mineoro Fg80, DCH 85 etc don't catch the phainomenon. Only a modificated MFD by Andy flind catch it a little.
Maybe i must try at other areas.

Regards:)

Hi Geo Italy or Grece is the same region almost no big difference.

Yes this shematic i think work good and better.
I want to try to see change with the frequency of detection of each metal Detected

FrancoItaly
11-30-2013, 11:58 AM
Hi Nicolas
Perhaps you can try other frequencies but you must remember that the "heart" of the circuit are L1, C1 and C2, with these values and the parasitic capacitor there is only one working frequence. If we change L1 or C1 or C2 or all these together I'm not sure that the "phenomenon" is detectable. However, it is always useful to experiment with new solutions.

Best Regards

Nicolas
11-30-2013, 04:06 PM
Hi Nicolas
Perhaps you can try other frequencies but you must remember that the "heart" of the circuit are L1, C1 and C2, with these values and the parasitic capacitor there is only one working frequence. If we change L1 or C1 or C2 or all these together I'm not sure that the "phenomenon" is detectable. However, it is always useful to experiment with new solutions.

Best Regards

Hi Franco Can you tell me what is the inductance value for your L1?

Yes I agree with that you said

FrancoItaly
11-30-2013, 04:16 PM
Hi Nicolas
I'm not in Italy, but I remember that inductance is less than 1 microhenry, I think that the value is not critic, surely 3 turns are ok.
Regards

Nicolas
11-30-2013, 04:39 PM
Hi Nicolas
I'm not in Italy, but I remember that inductance is less than 1 microhenry, I think that the value is not critic, surely 3 turns are ok.
Regards


Ok thanks Franco
good tavel and return

FrancoItaly
11-30-2013, 04:51 PM
Hi Nicolas
I return tomorrow, about 400 km of travel. What is your city? My is near Imperia.
Regards

Nicolas
11-30-2013, 06:52 PM
Hi Nicolas
I return tomorrow, about 400 km of travel. What is your city? My is near Imperia.
Regards

Welcome franco
My city is Lamezia Terme Regione Catanzaro
But now not live there. me too.

-------------
Benvenuti franco
La mia cittÃ* è Lamezia Terme Regione Catanzaro
Ma ora non vivere lì. anch'io :lol::D

Morgan
12-19-2013, 04:42 PM
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.

Here is for adapt to PDK-2.1 ,two diferent selector according the problems found in each country :


Its not difficult to build this simple selector ,need only to cut the original 6n8 cap. that is in paralel with the RX receptor coil,and use the cuted legs of the cap. to solder the SELECTOR wires.
In the photos i show the place where 6n8 was removed to give place for selector wires.
Any question cotact my email or send PM

18683

18684

18685

FrancoItaly
12-24-2013, 12:40 PM
Hi All
this is my Christmas gift :) it's another version of my Lrl more sensitive but less difficult to build. The oscillation comes from a CD4046 and we measure the phase change between the VCO and the output of the amplifier stage (TR2-TR3 and TR4). As antenna you can use a stylus or (better for me) a coil antenna. The capacitors C8 and C9 are connected in series for a single 0.5 pF capacitor (I think difficult to find). The power stage is the same of the other Lrl. In this simplified version there is only a led but is better to use more leds, I use a LM3914 to drive ten leds. The frequency is in the range 2.8 - 3.0 Mhz with the P1 cursor close to + 12V. Also the P2 cursor is close to positive and this means a small signal to input amplifier stage.

Best Regards

FrancoItaly
12-24-2013, 12:48 PM
I forgot L1, it's the same of the other Lrl, that's 3 turns air core, 10 mm diameter.

FrancoItaly
12-24-2013, 04:49 PM
:frown: I forgot also C18, it's 4.7 nF.

Sneshko
12-24-2013, 09:29 PM
Hi FrancoItaly!
You're the real Santa Claus!
Thank you very much!
Merry Christmas FrancoItaly!
Regards and All the Best!
Sneshko

Geo
12-25-2013, 12:12 PM
Hi Franco, thanks for the new schematic.
Does it has more detecting distance or it is the same????

My wishes for Merry Christmas and Happy New Year:)

FrancoItaly
12-25-2013, 12:47 PM
Hi Geo
I tested this Lrl only near my home with an unknow target and the signal is 50% more than the other Lrl and now I'm in Switzerland and I decided to post the new schemas. As I said this circuit is an amplifier and not an oscillator and it's more easy to build. It's also possible to change the frequency and the amplitude of the signal. I'll do other tests when I will return to Italy. It's also possible to change the turns in coil antenna for better results. Perhaps with this Lrl You'll have good results, indeed it seems strange to me that in Greece there is no "phenomenon".
Best wishes to you and family

Geo
12-26-2013, 07:33 AM
Hi Franco.
Again at Switzerland!!!!!:lol:
It is very good news that you catch the phenomenon with stronger signal, so you will locate the object from longer distance. Now i "play" with 3 projects, when i"ll finish with them i"ll construct your lrl so to see what is happening this time at my field area. Did you see any problem with high moisture and low temperature???

Regards:)

FrancoItaly
12-26-2013, 11:37 AM
Hi Geo
In Switzerland I have more time to think about the "phenomenon" and ... other stuff:lol:. I haven't noticed any change with high moisture and low temperature, but in my country the temperature is never too low. I am very pleased by the fact that with this Lrl there is no "compass effect".
Regards

Nicolas
12-26-2013, 01:04 PM
Hi Franco

My congratulations to the new LRL
It seems more effective than the first and most powerful stable and saw the amplification
good research and victory

Nicolas
12-27-2013, 12:31 AM
Hi Franco I used your type of antenna in my LRL became more sensitive and even the distance increases by 30%
but I ultisé another thing. I introduced in the coil in the plastic tube a normal antenna (see photo). it has become more sensitive, and thus increases the distance

Thank you for this idea. and I try to test your new LRL

So I want the schema to ten LEDs with the circuit LM3914
question after you if the voltage detection increases the LEDs light as a VU meter?
and if necessary to add an audible alarm (audio) if the target is detected further vusiel signal (LED).

Geo
12-27-2013, 10:30 AM
Hi Franco.
Do you think that a ground plated pcb will work better???
See an example...

Regards:)

FrancoItaly
12-27-2013, 11:41 AM
Hi GEo and Nicolas and others interested
Yes the voltage detection increases the LEDs light as a VU meter and then you can use a Vu meter, I think that isn't necessary to add an audible alarm, indeed It can be annoying as it's a no motion search. Perhaps a ground plated pcb will work better, but I think that it's better to shield the box, in fact I have a signal with my hand close to the box. In other Lrls I shielded the box with aluminium foil. I want to try the Nicolas' solution for the antenna and also I want to try a 200 mm ferrite rod.

Best Regards

detectoman
12-27-2013, 04:06 PM
francoitaly, very much congratulations by your project, semms interstant, regard from mexico, dman :)

FrancoItaly
12-27-2013, 04:48 PM
Hi Detectoman
I hope that other people can build this Lrl and realise that the "phenomenon" actually exists though it is not the same thing as using a metal detector.
I try to understand what is the "phenomenon" in order to build more sensitive Lrl and with discrimination. the heart of the circuit is around TR2 - C10-C11 and L1. The phenomenon, captured by the antenna, influences the signal that goes to ground but I cannot understand what kind of signal it is.
Best Regards

detectoman
12-27-2013, 06:45 PM
first happy new year 2014 at all, hello franco, i think around a metal buried exist a point of rf arrive in energies caming from very much sites, trasmisions, include the sun, this do a electric disbalance around and above in most force near of this centrals point, too any electrons go whit the air due this at statics, then the sensitive and appropiate receptors go in disbalance put action in alarm, i send all a embrace and my major wisses in these day, i desire moderation and calm no drive when drink please is´all dman mexico :)

detectoman
12-27-2013, 06:53 PM
franco: too a buried ring or a a circular field coins secuence is doing a coil, these influence does in short circuit whit the circundant energy of any electronical apparatus circuit, due the earth have a standar superficial´ polarization then when you travel near and pass, on these artificial field, here exist a radiant desestabilizament of regular poles magnetic general radiations, all consist a different modes of detection in the circuit constructions and transistor type bimetalic particularities regards

mustefa ubram
12-27-2013, 06:59 PM
hi francoitaly
happy new year:)
I became interested in the circuit:)
Please explain how this circuit function?
What is the phenomenon?
I want to start building?But first, I want to inquiry
Please explain about this circuit?
It can really help to find buried metals?
How?
BEST WISH

FrancoItaly
12-28-2013, 10:56 AM
Hi mustefa ubram
The signal coming from the VCO of IC1 goes to the TR2 base and then it's amplified by TR3 and TR4, the TR4 collector goes to phase comparator of IC1 with the out of VCO. At pin 2 of IC1 there is a signal corresponding to phase difference, this signal is inverted and amplified by Ic2. Part of signal of VCO goes to ground by C10 - C11 and L1. The "phenomenon" changes the phase and the amplitude of the signal. This Lrl detects the phase change while my previous Lrls detect amplitude change. In my test field I have a strong signal at about 3 m from my buried silver coin and also near the target if I take the antenna perpendicular to the ground. Obviously the Lrl detects also other signals, near radio transmitter and at home, but in open field there are very few "strange" signals.
Best Regards

mustefa ubram
12-28-2013, 03:30 PM
hi francoitaly
tank you very much for reply.
phenomenon:
Location of buried metal changes the amplitude and phase of the signal?
What is the source signal?
Which signal?

FrancoItaly
12-28-2013, 04:34 PM
The signal comes from VCO of IC1, the phenomenon is around buried metals for some meters and the antenna catch the phenomenon and changes something in the TR2 stage and the result is a phase change. I don't know which signal is the phenomenon. The Lrl (as the other Lrls) is a passive receiver/trasducer.

Sneshko
12-28-2013, 07:32 PM
Hi mustafa ubram!
For "Phenomen" see:

http://www.njminerals.org/metaldetecting-haloeffect.html

and:

http://www.longrangelocators.com/forums/showthread.php?t=15501

and
Happy New Year
Regards!

Sneshko

mustefa ubram
12-29-2013, 05:25 AM
Hi mustafa ubram!
For "Phenomen" see:

http://www.njminerals.org/metaldetecting-haloeffect.html

and:

http://www.longrangelocators.com/forums/showthread.php?t=15501

and
Happy New Year
Regards!

Sneshko
tank you very much
happy new year

mustefa ubram
12-29-2013, 10:03 AM
Obviously the Lrl detects also other signals, near radio transmitter and at home, but in open field there are very few "strange" signals.
Best Regards
Why do not you use a filter?

FrancoItaly
12-29-2013, 11:50 AM
Why do not you use a filter?

A filter for what ? We don't know pratically nothing about the phenomenon, if is a DC signal or RF signal or something that modules an existing signal...

Nicolas
01-05-2014, 05:45 PM
Hi all friends

I put here the Schema for Vu meter level for Franco LRL with LM 3914/15/16

Sneshko
01-07-2014, 09:29 PM
Very good Nicolas!
Thank you very much for VU meter!
Which program to open files with the DSN extension.
Thank you in advance for your answer!
Regards!
Sneshko

Nicolas
01-08-2014, 01:03 AM
Very good Nicolas!
Thank you very much for VU meter!
Which program to open files with the DSN extension.
Thank you in advance for your answer!
Regards!
Sneshko

Hi Sneshko thanks for you

The Program is proteus. You can download it from this link it with keygen


http://www.gulfup.com/?loFLzc

ionios
01-26-2014, 07:49 PM
Hello, i like to build your project,
I think it is a good circuit, and i am going to write my
opinion from the tests here,
i only have a question,
What you connect after the capacitor c18 in pin
14?
Thank you, for sharing you project whith us.

Nicolas
01-26-2014, 08:59 PM
Hello, i like to build your project,
I think it is a good circuit, and i am going to write my
opinion from the tests here,
i only have a question,
What you connect after the capacitor c18 in pin
14?
Thank you, for sharing you project whith us.

Hi ionios

It is connect to collector Transistor TR4

Look this detail

indiana jones
01-26-2014, 09:19 PM
Can I use BC 183 B in this project

or BC 547 C


Panagiotis I have ready the PCB
if you want i send to your mail.

ionios
01-26-2014, 10:12 PM
Hi ionios

It is connect to collector Transistor TR4

Look this detail
Ok, thank you for the information.

ionios
01-26-2014, 10:16 PM
Can I use BC 183 B in this project

or BC 547 C


Panagiotis I have ready the PCB
if you want i send to your mail.
Thank you xristos, i have also ready the pcb,

Nicolas
01-26-2014, 10:45 PM
Can I use BC 183 B in this project

or BC 547 C


Panagiotis I have ready the PCB
if you want i send to your mail.


This is a project for everyone, so share your knowledge with your friends here please

indiana jones
01-27-2014, 12:15 AM
This is a project for everyone, so share your knowledge with your friends here please

Is the same as the Geo pcb.

post 78

indiana jones
01-27-2014, 12:25 AM
The pcb

http://imagizer.imageshack.us/v2/800x600q90/690/tv0p.jpg (https://imageshack.com/i/j6tv0pj)

Nicolas
01-27-2014, 12:45 AM
The pcb

http://imagizer.imageshack.us/v2/800x600q90/690/tv0p.jpg (https://imageshack.com/i/j6tv0pj)


THANK YOU VERY NICE JOB

FrancoItaly
01-27-2014, 10:32 AM
Hi All
For Tr2-Tr3-Tr4 it's better any npn BC...C ( C stays for very high beta). For Tr1 any npn BC...A (low beta) as to high gain is no good for signal shape.

Best Regards

Nicolas
01-27-2014, 10:38 AM
Hi All
For Tr2-Tr3-Tr4 it's better any npn BC...C ( C stays for very high beta). For Tr1 any npn BC...A (low beta) as to high gain is no good for signal shape.

Best Regards

Hi franco how your test with your LRL? and what your news?

Come sono i testi con il tuo LRL? cosa c'è di nuovo ? magari è tutto bene :rolleyes:

FrancoItaly
01-27-2014, 10:53 AM
Hi Nicolas
At the time I did only test on the test but Rubin with my Lrl revealed a buried copper plate from 25 years to a depth of 60 cm to 4 m in South/North direction and 2.5 m in East/West direction.
Best Regards

Nicolas
01-27-2014, 11:02 AM
Hi Nicolas
At the time I did only test on the test but Rubin with my Lrl revealed a buried copper plate from 25 years to a depth of 60 cm to 4 m in South/North direction and 2.5 m in East/West direction.
Best Regards

Woooh questa è una buona notizia.
Franco Cosa ne pensi della frequenza del vostro LRL?:rolleyes:

This is good news.
Franco What do you think of the frequency of your LRL

FrancoItaly
01-27-2014, 11:25 AM
Hi Nicolas
With this Lrl the frequency is about 3Mhz, with the Lrl with the self oscillating mode the frequency is about 5Mhz, then the frequency is not very critical, but perhaps it's critical the LC tank, Rubin had changed L1 with a squared coil with same inductance but with no result. At the present I want to build a PI with a large coil to verify some signals.
Best Regards

tanrila
01-27-2014, 04:09 PM
hi to all and thanks master franco your lrl really work l build your lrl project and very good work but l used b548c not work but bc 238and 237 good work with best regard

Rubin
01-27-2014, 07:59 PM
Hi Nicolas
At the time I did only test on the test but Rubin with my Lrl revealed a buried copper plate from 25 years to a depth of 60 cm to 4 m in South/North direction and 2.5 m in East/West direction.
Best Regards
Hi all
Frankoitaly is correct. My LRL detect my target, but i see last week with hamidity, a big problem with false signals sometimes from east or other address, sometimes for north. In my buried copper franko LRL work, but if i go for tresure hunting, i am confused, because i don't know the real signal
I think need more tests

Nicolas
01-27-2014, 11:12 PM
Hi Nicolas
With this Lrl the frequency is about 3Mhz, with the Lrl with the self oscillating mode the frequency is about 5Mhz, then the frequency is not very critical, but perhaps it's critical the LC tank, Rubin had changed L1 with a squared coil with same inductance but with no result. At the present I want to build a PI with a large coil to verify some signals.
Best Regards

Thanks franco but strange I think is bad range frequency because we have strange signals we need the best frequency to find treasures.

Look it you can find the best for your LRL

http://chemelec.com/Calculators/Calculators.htm
http://www.energylabs.com.br/el/calculadora/lccalc
http://chemelec.com/Calculators/C-L-R-F_Calc.htm
http://www.daycounter.com/Calculators/Coil-Physical-Properties-Calculator.phtml

FrancoItaly
01-28-2014, 11:16 AM
Hi Nicolas
With P1 you may change the Vco frequency, if you use for C11 a 100pF variable capacitor it's possible to find other settings but I think that is very critical. If there are some strange signals it's possible that the gain is too high and the Lrl becomes sensible to compass effect.
Best Regards

Nicolas
01-28-2014, 12:05 PM
Hi Nicolas
With P1 you may change the Vco frequency, if you use for C11 a 100pF variable capacitor it's possible to find other settings but I think that is very critical. If there are some strange signals it's possible that the gain is too high and the Lrl becomes sensible to compass effect.
Best Regards


Hi franco you are right
But I think change like this picture is better and see what give me

FrancoItaly
01-28-2014, 12:22 PM
Hi Nicolas
Yes you may try this setting, but my coil antenna have the 2 terminals togheter and this setting change also the phase and the amplitude of the stage. The phenomenon is very difficult to catch and a small change may prevent the right operazion. In a field around my home I have only a not great signal, not detected by MD, and no other signals also with max gain. I'm almost sure that the frequency is not involved in the phenomenon and then L1/C11 tank does match nothing.
Best Regards

iron1944
01-28-2014, 12:32 PM
Dear Indiana Jones.
LRL franco circuit placed upon the part of the PCB board to the forum here. No part numbers of parts to a PCB antenna where
No matter where the voltage will help bağlancak bellideğil
would be better.
Thank you.

Nicolas
01-28-2014, 01:20 PM
Hi Nicolas
Yes you may try this setting, but my coil antenna have the 2 terminals togheter and this setting change also the phase and the amplitude of the stage. The phenomenon is very difficult to catch and a small change may prevent the right operazion. In a field around my home I have only a not great signal, not detected by MD, and no other signals also with max gain. I'm almost sure that the frequency is not involved in the phenomenon and then L1/C11 tank does match nothing.
Best Regards


Yes, I know Franco I tested it better before the two terminals together. it is similar to a normal antenna with high impedance.

thanks for your support and help

iron1944
01-30-2014, 01:29 PM
Dear Indiana Jones.
Can you help me?
Franco started the forum that you send to the LRL track names in PCB
No PCB BOARD forum part number written down again put the amateur here.b please help to make installation of this circuit.
Thank you.

indiana jones
01-30-2014, 02:30 PM
Dear Indiana Jones.
Can you help me?
Franco started the forum that you send to the LRL track names in PCB
No PCB BOARD forum part number written down again put the amateur here.b please help to make installation of this circuit.
Thank you.

Hi iron1944

I do not understand what you want,all is here in forum.

Mine PCB is the same as Geo post 78
http://www.longrangelocators.com/forums/showpost.php?p=147951&postcount=78


Here's schematic and Materials List from FrancoItaly post 68
http://www.longrangelocators.com/forums/showpost.php?p=147915&postcount=68

My own PCB plan is not finish,I do not know if it works.

iron1944
01-31-2014, 02:11 PM
Dear Indiana Jones.
Can you help me?
Green color on the PCB board:
NO PART OF RESISTANCE
Diode PART NO
Transistor PART NO
ANTENNA OUT
LM3419 LED vumeter OUT
18 V INPUT typing could you show?
I AMATEUR help me.
THANK YOU.

iron1944
02-02-2014, 10:26 AM
Mr. Nicolas.
GREAT MASTERS.
FRANCO LRL in the LM3419 LED vumeter CIRCUIT CIRCUIT WHICH TO BE TAKEN OUT from UC
THANK YOU:

iron1944
02-02-2014, 02:01 PM
Mr. Nicolas. GREAT MASTERS
Thanks for your reply, asked technical questions on this forum a member of confidential information to
I do not want to answer only the questions I asked you, thank you very much for the

Nicolas
02-02-2014, 08:11 PM
Mr. Nicolas.
GREAT MASTERS.
FRANCO LRL in the LM3419 LED vumeter CIRCUIT CIRCUIT WHICH TO BE TAKEN OUT from UC
THANK YOU:

Really not understand you good because your bad english

About connection for Vu metre replace the Led 1 by circuit LM 3415/16 or other

Nicolas
02-03-2014, 09:03 AM
The pcb

http://imagizer.imageshack.us/v2/800x600q90/690/tv0p.jpg (https://imageshack.com/i/j6tv0pj)

Dr Jones >>>> kokaki1>>>> Cristo
Indiana jones you stupid or what we know it's clone to PDK Morgan.
also you are vain. You think that you empty your gallery photos??
but I have taken all.
You're a thief and only burner, blank also do not have any thing.


http://www.psaxtiria.net/forum/showthread.php?t=9767&page=5&p=216185&viewfull=1#post216185


https://imageshack.com/i/j6tv0pj

http://www.kounooz.com/up/do.php?img=1926 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?img=1920 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?img=1921 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?img=1922 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?img=1923 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?img=1924 (http://www.kounooz.com/up/)

http://www.kounooz.com/up/do.php?id=1925

http://www.psaxtiria.net/forum/attachment.php?attachmentid=6454&d=1368381916 (http://www.psaxtiria.net/forum/showthread.php?t=10118)

indiana jones
02-03-2014, 09:49 AM
Dear Nicola
What exactly do you want

If you want more pictures I have uploaded to my profile you can take, fresh uploaded.

https://imageshack.com/user/kokaki1

You're really stupid if you think you make lrl, with stealing Photo xaxaxaxaxaxaxaxa

In my profile.
I show that I want.
YOU can not take what you want.xaxaxaxaxaxaxaxa

Nicolas
02-03-2014, 12:25 PM
Dear Nicola
What exactly do you want

If you want more pictures I have uploaded to my profile you can take, fresh uploaded.

https://imageshack.com/user/kokaki1

You're really stupid if you think you make lrl, with stealing Photo xaxaxaxaxaxaxaxa

In my profile.
I show that I want.
YOU can not take what you want.xaxaxaxaxaxaxaxa

Importantly, you will not pass thief
I do not need your photos
Keep it may benefit you
But we will know how to give information
So that these items are not stolen and attributed to non-owners
Bugger you ******* despicable

indiana jones
02-03-2014, 01:12 PM
Nobody told you to look at my profile.:nono:
You are sending PM to me to give you my project an my image.
I ansewer and i told this is my project and i cape for my.:nono:
Maybe want to see the PM you.:lol:

Qiaozhi
02-03-2014, 01:17 PM
Ok guys, stop bickering and accusing each other of plagiarism, :nono: otherwise I'll have to start deleting posts.
If you want to argue with each other, then please do it elsewhere.

indiana jones
02-03-2014, 01:30 PM
Dear Nicolas

I' make all of the project in this thread from FrancoItaly and give his last work in my own PCB.
Stay in this Topic
If you have something to say Reply to topic Lrl from Italy
and not in my project.

coprente
capire

jocelito
02-06-2014, 04:09 PM
lrl italy design with pvc box.
** potentiometer p3 this very sensitive, are also, or is something wrong?

https://www.dropbox.com/sh/1qnbn5czsz3n68n/bUSss1vwnJ

FrancoItaly
02-06-2014, 04:27 PM
Hi Jocelito
You are right, but the phase comparator output has a great range (from 0.1V to 9V depending P1, P2 and PCB and perhaps other factors) then I decided to use only P3 and by this way I alwyas can tune the stage. When your Lrl is working you can add 2 resistors in series with P3, one toward +V and the other toward ground, in order to obtain the led on with P3 regulated for max sensitivity.
Best Regards

mustefa ubram
02-07-2014, 10:11 AM
hi to FrancoItaly &indiana jones&other freinds
Whether you've made ​​the circuit and result in action?

king40
02-08-2014, 11:49 AM
hi to FrancoItaly &indiana jones&other freinds
Whether you've made ​​the circuit and result in action?

Hi mustefa
I tested FrancoItaly lrl
And worked very well
Thanks him for sharing

Nicolas
02-08-2014, 12:30 PM
Hi mustefa
I tested FrancoItaly lrl
And worked very well
Thanks him for sharing

Good King40 I have told you that

maybe first you not cheked it good

the Franco LRL work everywhere

now rest to test that in real for finding gold or silver buried

king40
02-08-2014, 01:17 PM
Good King40 I have told you that

maybe first you not cheked it good

the Franco LRL work everywhere

now rest to test that in real for finding gold or silver buried

Yes dear Nicolas
It must checked very good
And then worked

mustefa ubram
02-08-2014, 07:19 PM
Hi mustefa
I tested FrancoItaly lrl
And worked very well
Thanks him for sharing
tank you very much king40
Please explain about the operation of the circuit?

king40
02-08-2014, 07:42 PM
Dear mustefa
In my field test
I have buried silver
And francoitaly lrl detect target very good
P3 is important
If you play with p3 you lost your target

Nicolas
02-08-2014, 08:26 PM
Dear mustefa
In my field test
I have buried silver
fresh Silver buried or old ? explain better. dimension
And francoitaly lrl detect target very good
what distance from target
P3 is important
If you play with p3 you lost your target


I have buried silver
fresh Silver buried or old ? explain better. dimension
And francoitaly lrl detect target very good
what distance from target

king40
02-09-2014, 04:01 AM
Fresh no
Buried silver (old)
Distance b
I think between 1 or 1.5 km

mustefa ubram
02-09-2014, 07:07 AM
Fresh no
Buried silver (old)
Distance b
I think between 1 or 1.5 km

tank you dear king40
You said in your private message to me this circuit have noise.Is this noise is negligible.?
Causes a serious disruption in the circuit?
1km!!!!What did you clear your space?
Please put some photos of your lrl?
best wish:)

Nicolas
02-09-2014, 09:11 AM
Fresh no
Buried silver (old)
Distance b
I think between 1 or 1.5 km

I think between 1 or 1.5 km :cool::cool:

Are you sure?

and how much time since it is buried in the earth
size as it is important
and depth

king40
02-09-2014, 09:42 AM
tank you dear king40
You said in your private message to me this circuit have noise.Is this noise is negligible.?
Causes a serious disruption in the circuit?
1km!!!!What did you clear your space?
Please put some photos of your lrl?
best wish:)

Hi dear mustefa
Yes this is negligible noise
And i can't understand other your question :D
I need to modify something and when ready I take pictures

king40
02-09-2014, 09:47 AM
I think between 1 or 1.5 km :cool::cool:

Are you sure?

and how much time since it is buried in the earth
size as it is important
and depth
Hi my dear friend
Yes I'm sure
I don't know any detail about my target such as how much time since it buried
I just know about weight and type of target (silver)

FrancoItaly
02-09-2014, 11:52 AM
Hi All
I think that King40 is wrong, with my Lrl it's possible 5 - 10 meters for a small target that is buried about 5 years or more. If you can follow the signal for 1km surely it is the compass effect or a RF trasmitter, if the signal stops after few meters (south/north direction) there is another target.

Best Regards

Nicolas
02-09-2014, 12:46 PM
Hi All
I think that King40 is wrong, with my Lrl it's possible 5 - 10 meters for a small target that is buried about 5 years or more. If you can follow the signal for 1km surely it is the compass effect or a RF trasmitter, if the signal stops after few meters (south/north direction) there is another target.

Best Regards

YES REALLY FRANCO :lol::lol::lol:

IF YOUR LRL DETECT TARGET SINCE 1 OR 1.5 KM YOU ARE THE GENUIS OF LRL

king40
02-09-2014, 04:26 PM
Hi All
I think that King40 is wrong, with my Lrl it's possible 5 - 10 meters for a small target that is buried about 5 years or more. If you can follow the signal for 1km surely it is the compass effect or a RF trasmitter, if the signal stops after few meters (south/north direction) there is another target.

Best Regards

:D:D no im sure
my target is biiiiiiig :lol:

mustefa ubram
02-09-2014, 05:34 PM
Hi All
I think that King40 is wrong, with my Lrl it's possible 5 - 10 meters for a small target that is buried about 5 years or more. If you can follow the signal for 1km surely it is the compass effect or a RF trasmitter, if the signal stops after few meters (south/north direction) there is another target.

Best Regards
TANK YOU FRANCO
For tank circuit with ferrite core coil is more effective for more sensitivity.L1 with ferrite core.What do you think?
franco What is your suggestion to eliminate excess signal noise?

FrancoItaly
02-09-2014, 05:42 PM
Hi
I don't know if the ferrite core is better than air coil, but L1 is very critic. For the noise perhaps there is too gain in TRs stage, try 330pF for C13 and C15 and more signal from VCO by varing P2
Best Regards

Funfinder
02-10-2014, 02:06 AM
:D:D no im sure
my target is biiiiiiig :lol:

Prove your claims or tell it little children.

What is this thread here:
Grannys goodnight-story selection?

"And then the little girly went into the woods and from the sky have fallen
hundreds of star-dollars...."

You mess up hard tries of technical evolution with fantasy-crap!

For guys like you we need a testing-bush-land where every 10km is hidden a silver-treasure -
but nothing else inbetween!

If you guys here already achieve such "phenomenal" fantastic results with your nice
little wonderbox how long can it take until you break the Randy-Test?

1 month? 6 months? 1 year? 10 years???
Come on, with such great results you would be not clever to leave this million dollar
price to others! :)

I really hope guys like you will never work at the car-industry!
Not imaginable how many deaths we would have out on the streets! :angry:

Start work correct or stop it!
Especially stop spaming this forum with miracle-fairy-tales if you cant prove them.

king40
02-10-2014, 04:37 AM
nice jok :D
i think you have inner problem
or you think knows everything or very tired
before posting you better think about your post
why i must say lie??
im not creator this lrl
im not a seller
i build this lrl for 3time
2time not working and i say to dear francoitaly your lrl not working
but i success in 3time

but in 1k distance just 1 time detect target
and i say to franc
i just post my result :)

mustefa ubram
02-10-2014, 07:09 AM
tank you franco for Everything.
Please explain procedures this circuit?
How to reveal the metal?
Please fully explain?
tank you :)

FrancoItaly
02-10-2014, 11:55 AM
Hi All
I don't have much explanation to give to you, I think that all Lrls are passive receivers, but not a broadband receiver (I think that the "phenomenon" doesn't have a particular frequency). My lrl amplifies many times an internal signal of about 3Mhz and it measures the phase change between the oscillator and the amplifier stage but it's also possible to measure the amplitude change. The phenomenon changes the phase (and the amplitude) of the amplifier stage but I don't know if only long time buried metals are the cause of the phenomenon. Surely with too gain the Lrl reveals also the "compass effect". The Lrl is not a metal detector but only a "abnormal signals" detector, I suppose that the solar wind may be involved in this "phenomenon" but I'm not sure.
Best Regards

iron1944
02-10-2014, 07:03 PM
Mr. Nicolas.
GREAT MASTERS.
- Lrlfranco locator box on the front panel R / S key to how this switch works there? Show this switch connectivity by drawing on the scheme.
- In the same box with pvc pipe wrapped round copper wire diameter of 70 what will happen?
Thank yo

Nicolas
02-10-2014, 07:55 PM
Mr. Nicolas.
GREAT MASTERS.
- Lrlfranco locator box on the front panel R / S key to how this switch works there? Show this switch connectivity by drawing on the scheme.
- In the same box with pvc pipe wrapped round copper wire diameter of 70 what will happen?
Thank yo

For detail look this picture

For components PCB ask that from Geo
Because my PCB is not the same of Geo


Good luck my friend

mustefa ubram
02-11-2014, 09:45 AM
hi to all freinds and nicolas and franco
one question :
Why and What phenomenon is caused by a phase change?

FrancoItaly
02-11-2014, 11:06 AM
Hi iron1944
If You refers to my Lrl (the photo that I posted) in the main box there are power stage and display stage with LM3914 that drives 10 leds. In the front panel there are 3 switchs, one is power on/off, another for dot/strip led display, I mean only one led at a time or all the leds and the last switch is for inverting DC signal from the sensor stage (this is currently not necessary).The 2 terminals of the coil antenna are linked togheter and they go to L1.
Best Regards

mustefa ubram
02-11-2014, 02:17 PM
NEW VERSION PCB OF LRL FRANCO 6CM*5CM:D

Nicolas
02-11-2014, 02:50 PM
NEW VERSION PCB OF LRL FRANCO 6CM*5CM:D


Hi Mustefa Good work my friend

iron1944
02-11-2014, 03:48 PM
MR. MUSTAFA UBRAM
Thanks for PCBs
PCB BOARD write on the part numbers and part names.?
Thank you.

mustefa ubram
02-15-2014, 08:05 PM
hi franco
Do reveal all the buried metal?exampel bronze?or copper?

Nicolas
02-20-2014, 03:01 PM
Hi friend

I put here the antenas Coil with Ferrite for LRL Franco and other LRL's it's more better than telescopic antennas.

Good luck to all

Nicolas
02-21-2014, 05:10 PM
My Degital LRL A24 with Antenas LRL Franco is so better and thus very sensitive than telescopic antennas

Thank you my dear Franco for this coil.

FrancoItaly
02-21-2014, 05:41 PM
Hi Nicolas
My coil antenna is better than ferrite core antenna? For the moment I cannot make experiments.
Best Regards

Nicolas
02-21-2014, 06:05 PM
Hi Nicolas
My coil antenna is better than ferrite core antenna? For the moment I cannot make experiments.
Best Regards

Hi franco I cant understand what you mean

For my Coil is with ferite core diameter 12mm and long 220 mm

Fred
02-21-2014, 07:26 PM
My Degital LRL A24 with Antenas LRL Franco is so better and thus very sensitive than telescopic antennas

Thank you my dear Franco for this coil.

Hi Nicolas,
You say it is working much better, but doing what ?
It would be great to see results of your experiments.
Thanks!

ozanmelih
02-21-2014, 08:00 PM
Hi nicolas. Which one is good? King lrl 4.2 or lrl A24 ?

Nicolas
02-21-2014, 09:23 PM
Hi Nicolas,
You say it is working much better, but doing what ?
It would be great to see results of your experiments.
Thanks!

Hi Fred

It's a more sensitive than normal telescopic antenna .I have said this before

Here I not speak about Franco LRL. just I mean the coil for franco LRL with ferite Core.

Again not have build the Franco LRL.

For exepriences: I have already made ​​my experience since 3 years. For the full range of my LRL's that I produce and sell.

mustefa ubram
02-21-2014, 09:26 PM
hi nicolas and franco
I want to test but Not with metal Old buried ?
What is there another way???/???/
I want to make sure everything is correct.Please guide?

Nicolas
02-21-2014, 10:04 PM
Hi nicolas. Which one is good? King lrl 4.2 or lrl A24 ?

Hi Ozanmelih

Again not have build the LRL V4.2. Need Times to finish the program for receiver. Because I use in this version LCD 4x20 or type graphic 128x64

well on that version 4.2 will be more effective than 4.1 and A24.

But the same principle of operation. Just more details on the target found for understanding the frequency of resonance and make my experience on other metals.

it's like a reciprocal in the calculation.

I sold a unit for Turkey, but still no result
I think he has a problem of reception
or they have not yet found a treasure fled
but I wear it for another unit during my trip to Turkey.

ozanmelih
02-21-2014, 10:17 PM
may you tell me when ll you come here please? I would like to meet you and take more information from your deviceses. I am really interest with your products. Especially king lrl 4.2 with your new type coil

ozanmelih
02-21-2014, 10:19 PM
And if you dont mind i would like to know who has your device in Turkey. maybe i would meet him and take a look at his devices performance

Nicolas
02-21-2014, 10:31 PM
hi nicolas and franco
I want to test but Not with metal Old buried ?
What is there another way???/???/
I want to make sure everything is correct.Please guide?

My dear Mustefa I cant tell you nothing about this test :nono: because again not have opportunity to build this Franco LRL.

Expect our friend Franco is going to say about it.

Nicolas
02-21-2014, 10:42 PM
may you tell me when ll you come here please? I would like to meet you and take more information from your deviceses. I am really interest with your products. Especially king lrl 4.2 with your new type coil

I think end of march yes my dear friend we can meet in Istanbul

And if you don't mind i would like to know who has your device in Turkey. maybe i would meet him and take a look at his devices performance

I know what problem he have ...It's the soft because not have signat from receive
and the harder I change the PORT for PIC
but you can make visit to see the device and test your experience
I commit myself for a period of one year guarantee my devices sold.

mustefa ubram
02-22-2014, 05:49 AM
My dear Mustefa I cant tell you nothing about this test :nono: because again not have opportunity to build this Franco LRL.

Expect our friend Franco is going to say about it.
tank you dear nicolas
franco please help me about questions:
I want to test but Not with metal Old buried ?
What is there another way???/???/
I want to make sure everything is correct.Please guide?

FrancoItaly
02-22-2014, 11:10 AM
Hi mustefa ubram
In my opinion there is no other way to test the lrls, you must have a long buried metal that is in same place at least a few months (for my experience) or to know a place where there is surely a long buried metal. An empirical system is exploiting the compass effect, you need to adjust the gain towards the maximum sensitivity until you have the compass effect then you have to lower the gain until it disappears. This happens with my lrl.
Best Regards

mustefa ubram
02-22-2014, 02:00 PM
Hi mustefa ubram
In my opinion there is no other way to test the lrls, you must have a long buried metal that is in same place at least a few months (for my experience) or to know a place where there is surely a long buried metal. An empirical system is exploiting the compass effect, you need to adjust the gain towards the maximum sensitivity until you have the compass effect then you have to lower the gain until it disappears. This happens with my lrl.
Best Regards
tank you very much franco:)
Will reveal whether other metals.exp:copper or bronze?

FrancoItaly
02-22-2014, 03:34 PM
I think all no ferrous metals, but I have experience only with a brass bullet

mustefa ubram
02-22-2014, 04:23 PM
TANK VERY MUCH FRANCO
You are a great engineer
BEST WISH DAER:)

Fred
02-22-2014, 09:21 PM
Ok, but i have never seen a serious report about what it really does and how...


Hi Fred

It's a more sensitive than normal telescopic antenna .I have said this before

Here I not speak about Franco LRL. just I mean the coil for franco LRL with ferite Core.

Again not have build the Franco LRL.

For exepriences: I have already made ​​my experience since 3 years. For the full range of my LRL's that I produce and sell.

Nicolas
02-22-2014, 11:31 PM
Ok, but i have never seen a serious report about what it really does and how...


That were not see it .. it is not my fault, my dear brother

See my old Comments

http://www.longrangelocators.com/forums/showthread.php?p=143946&posted=1#post143946

I've set a goal has been his my LRL's at a depth of 1.80 m and 600 m in the tomb ...

Gold coins and silver at the mention or Bronze

I've forgotten now ... but they exist...

HOBBIT
02-24-2014, 07:26 AM
hi to all

construct lrl Franco and I but do not know how to adjust to being very sensitive, putting his hand on the horn grabbed by 2-3 cm, is correct that this distance must be more sensitive;
Thank you all.

FrancoItaly
02-24-2014, 11:04 AM
Hi HOBBIT
Tune P1 for about 3Mhz, tune P2 for about 1-6V (AC signal) at point X and at pin2 (phase comparator output) a DC signal 0.5-6V. This is not a metal detector and hand tests serve little. As I said and I repeat here there is no other way to test the lrls, you must have a long buried metal that is in same place at least a few months (for my experience) or to know a place where there is surely a long buried metal. An empirical system is exploiting the compass effect, you need to adjust the gain towards the maximum sensitivity until you have the compass effect then you have to lower the gain until it disappears. This happens with my lrl.
Best Regards

king40
02-24-2014, 11:08 AM
hi to all

construct lrl Franco and I but do not know how to adjust to being very sensitive, putting his hand on the horn grabbed by 2-3 cm, is correct that this distance must be more sensitive;
Thank you all.

Hi
you must have old buried gold or silver in your field test

Nicolas
02-24-2014, 02:27 PM
hi to all

construct lrl Franco and I but do not know how to adjust to being very sensitive, putting his hand on the horn grabbed by 2-3 cm, is correct that this distance must be more sensitive;
Thank you all.

test in buried metal my friend not for fresh metal :nono:

mustefa ubram
02-27-2014, 10:39 AM
hi
franco I built your lrl
Please guide for getting started.(my frq is 2.8mhz*pot2 set on 6vp-p* led on -off with pot 3)

Please guide?
best wish

FrancoItaly
02-27-2014, 11:04 AM
Hi mustefa ubram

I repeat here what I said to Hobbit, "you must have a long buried metal that is in same place at least a few months (for my experience) or to know a place where there is surely a long buried metal. An empirical system is exploiting the compass effect, you need to adjust the gain towards the maximum sensitivity until you have the compass effect then you have to lower the gain until it disappears. This happens with my lrl."

Best Regards

Nicolas
02-27-2014, 12:37 PM
Hi Mustefa Nice work
We waiting you test now. and your news.

Good luck

mustefa ubram
02-27-2014, 04:29 PM
tank you franco and nicolas
the lrl Reacts to mobile phone radiation.In your opinion, is this acceptable?

FrancoItaly
02-27-2014, 04:45 PM
Hi mustefa ubram
I don't know if it's important, I have no tried, but I think that the Lrl is ok.
Best Regards

mustefa ubram
02-27-2014, 07:15 PM
franco What are the duties L1 C10 C11 ?
is this circuit postive detector?

FrancoItaly
02-28-2014, 10:47 AM
Hi mustefa ubram
I can only say that the phenomenon changes amplitude and phase of the amplifier stage.
Best Regards

roccocoin
03-04-2014, 07:09 AM
NEW VERSION PCB OF LRL FRANCO 6CM*5CM:D

mustefa hello, I want to ask you a favor, since you've already made ​​the PCB francoitaly I could put the photo in black and white of the printed circuit? I am from Italy as frank I have already contacted him directly, but he told me that he just makes patterns pen and I do not understand nulla.tank

nelson
03-04-2014, 12:08 PM
Dear friend

Has i know all LRL divices detects electromagnetics signals from many sources.
Yesterday for example i was experimenting to know what PDK and Crypton OBMD 2 can detect. So for that i try to see if this devices can detect a quarz watch, and yes both detected this small signal. Al so a 1.5 battery, a small tv set are detected. So far i think that the clue is to try the answer from Franco and this is to test the detector on a site where you know there is silver or gold buried from long time (years)

Regards

Nelson


tank you franco and nicolas
the lrl Reacts to mobile phone radiation.In your opinion, is this acceptable?

roccocoin
03-04-2014, 12:35 PM
Dear friend

Has i know all LRL divices detects electromagnetics signals from many sources.
Yesterday for example i was experimenting to know what PDK and Crypton OBMD 2 can detect. So for that i try to see if this devices can detect a quarz watch, and yes both detected this small signal. Al so a 1.5 battery, a small tv set are detected. So far i think that the clue is to try the answer from Franco and this is to test the detector on a site where you know there is silver or gold buried from long time (years)

Regards

Nelson

Yes, ok, but I asked for a copy of the electronic board in black and white to be able to do francoitaly and since mustefa already made ​​it like I asked ... mustefa all here to test it then I got it.

mustefa ubram
03-06-2014, 07:38 AM
my lrl is ready.But I have not an old metal buried for testing:frown:Do not Know:frown::frown::frown:

Nicolas
03-06-2014, 04:00 PM
my lrl is ready.But I have not an old metal buried for testing:frown:Do not Know:frown::frown::frown:


Hi Mustefa nice sensor Antenas

mustefa ubram
03-06-2014, 04:59 PM
Hi Mustefa nice sensor Antenas
tank you dear nicolas.but i dont know for start:frown::frown::frown:

Nicolas
03-06-2014, 05:54 PM
tank you dear nicolas.but i dont know for start:frown::frown::frown:

Prove it in media or you think there's fled the metals .. or many treasures and see how that works this Machine
Certainly you will understand my friend.

I am busy on a lrl working with a PIR
Good wishs for you and all

Morgan
03-06-2014, 07:37 PM
my lrl is ready.But I have not an old metal buried for testing:frown:Do not Know:frown::frown::frown:

i thought maybe if the box is made of wood it would be better...

mustefa ubram
03-06-2014, 08:08 PM
i thought maybe if the box is made of wood it would be better...
morgan i Made with Teflon.it is good.
morgan my lrl Responds to mobile signals.Your opinion is right?

Morgan
03-07-2014, 12:52 AM
morgan i Made with Teflon.it is good.
morgan my lrl Responds to mobile signals.Your opinion is right?


Hi

react to the mobile signals only means your LRL is working, PDKs,MINERO etc also react to mobiles ,however you need to try your locator in the fields, and when you get a clear signal,not dig,until you finish all the tests that you need to know about performance,DISTANCE,AIR HUMIDITY etc etc

good luck

roccocoin
03-09-2014, 11:47 AM
mustefa hello, I want to ask you a favor, since you've already made ​​the PCB francoitaly I could put the photo in black and white of the printed circuit? I am from Italy as frank I have already contacted him directly, but he told me that he just makes patterns pen and I do not understand nulla.tank




certain that you are just friends here, there frigates of those with electronics do not understand much, I asked for the aid, and ye all site ripped off, if you were to ask for help I certainly also being Italian I would have made ​​available .

roccocoin
03-09-2014, 11:50 AM
certain that you are just friends here, there frigates of those with electronics do not understand much, I asked for the aid, and ye all site ripped off, if you were to ask for help I certainly also being Italian I would have made ​​available .



and can you put the correct photo of 1 pcb, parts list and diagram for mounting all electronic parts labeled? I'm not so good at figuring out but they are good enough to connect them if you post well.

Tim Williams
03-10-2014, 09:48 PM
How much testing have you done with this new unit? I may build one and test here.

Tim

v_gh
03-12-2014, 04:43 PM
Hi Francois, thanks for the effort
I will connect LCD and IC to the your circuit.
It shows the frequency

v_gh
03-12-2014, 04:49 PM
If my circuit works
I'll send it to you
It is very easy to make

mustefa ubram
03-13-2014, 12:36 PM
HI FRANCO AN OTHER FRENIDS
i found a problem in schematic and circuit
I have no signal in the capacitor 8 and 9 When the p2 is 1k.
But when p2 is hi Resistance 500k there is a signal The domain pin4 from ic1.
In your opinion, where is the problem?Which is correct?
franco
How much should a domain p-p in c9 and r11?
i put in attech protus file .please see and help me
best wish

for antenna i think need to :
300000/2800000=0.1071428*1000=107/4=26meter wire 1mm
On rod 2 cm =2*3.14=6.28cm Environment rod
260cm/6.28cm=41 *2= 82 rounds wire 1mm on rod 2cm (need for antenna)

mustefa ubram
03-13-2014, 12:44 PM
new pcb lay of franco lrl gift for all :);)
best wish

Nicolas
03-13-2014, 03:29 PM
HI FRANCO AN OTHER FRENIDS
i found a problem in schematic and circuit
I have no signal in the capacitor 8 and 9 When the p2 is 1k.
But when p2 is hi Resistance 500k there is a signal The domain pin4 from ic1.
In your opinion, where is the problem?Which is correct?
franco
How much should a domain p-p in c9 and r11?
i put in attech protus file .please see and help me
best wish

for antenna i think need to :
300000/2800000=0.1071428*1000=107/4=26meter wire 1mm
On rod 2 cm =2*3.14=6.28cm Environment rod
260cm/6.28cm=41 *2= 82 rounds wire 1mm on rod 2cm (need for antenna)



Hi dear mustefa

My friend I have tested It and work well

You only have error when you select your choice in Current

My friend you have choice AC and you have DC

look here

Create your attention to practice your risk of a damage materials :angry::angry::angry::angry::angry::angry::angry:

Achtung!!!!!!!!!!!!!!!!!!!!

FrancoItaly
03-13-2014, 04:35 PM
Hi mustefa ubram
You have made my circuit? Or use only a simulator? P2 must be 1K, at TR1 collector it must be an impulsive signal not a squared signal. For the first time I'd suggest using an stylus antenna then go to the test field and vary P1, P2 and P3.
Best Regards

v_gh
03-18-2014, 06:41 PM
Hi Mustafa
I think you need to change Q1 with bc183 in your proteus

mustefa ubram
03-18-2014, 06:56 PM
Hi Mustafa
I think you need to change Q1 with bc183 in your proteus
hi
q1 is in orginal schematic pnp (bc170).I replaced 557 with 170:)

v_gh
03-18-2014, 09:16 PM
I did not had Frequency in your circuit, but when change this part Oscilloscope Showed Frequency
Also bc170 is NPN No PNP

FrancoItaly
03-20-2014, 04:47 PM
Hi All

This is my latest lrl, it's very similar to the first but with a 8Mhz quartz oscillator, it's more easy to build because I give the pcb of this stage and the only fix is to try the right valour of C2,C3 and C4 to have from 2 to 4V output voltage. In my case I have used 1pF for all the capacitors (It depends on the parasitic capacitance of the PCB). The antenna may be a simple stylus and L1 is the same, 3 turs air core, 1cm x 1cm. The components are soldered directly on copper, does not need any hole. The sensitivity is slightly better but maybe depends on subsequent amplification that I made adjustable. In the display stage I use 3 leds but it's possible to use from 1 to ... what you want. The transistors are BC183c or others silicon NPN type with high beta, the diodes are 1n4148 or others. With a scope you must control that at Tr1 emitter there is about 8V signal, you may change C1 for better result.

Best Regards

FrancoItaly
03-20-2014, 04:52 PM
Hi All

Touching the antenna input the output voltage decreases slightly and this confirms proper functioning.

Best Regards

tanrila
03-27-2014, 09:44 PM
Hi All

Touching the antenna input the output voltage decreases slightly and this confirms proper functioning.

Best Regards

thanks master franco i build your new lrl i can detect mobil field and lamp field with
best regard

moving
03-29-2014, 12:44 AM
Ciao Franco,sono nuovo in questo forum,credi che il tuo ultimo progetto postato e"piu"efficace nel rilievo oro sepolto rispetto al precedente ? sai credo , e ne sono convinto che il fenomeno esiste,grazie ma ,estremamente difficile da captare. vorrei assemblare questo progetto ed effettuare prove sul campo , un campo assolutamente predisposto per l"esame in questione.

Nicolas
03-29-2014, 01:57 AM
thanks master franco i build your new lrl i can detect mobil field and lamp field with
best regard

You mean by this is Electrostatic???

I advice Franco to eliminate this frequency for lamp field and mobil field

Thank dear for your suggestions

Qiaozhi
03-29-2014, 10:21 AM
Ciao Franco,sono nuovo in questo forum,credi che il tuo ultimo progetto postato e"piu"efficace nel rilievo oro sepolto rispetto al precedente ? sai credo , e ne sono convinto che il fenomeno esiste,grazie ma ,estremamente difficile da captare. vorrei assemblare questo progetto ed effettuare prove sul campo , un campo assolutamente predisposto per l"esame in questione.
Please read the forum rules -> Basic Rules of the Forums (http://www.longrangelocators.com/forums/showthread.php?t=10526)
and make your posts in English.

moving
03-29-2014, 10:58 AM
Ok, administrator, I apologize for the inconvenience, i'll write" in English.

FrancoItaly
03-29-2014, 11:36 AM
Hi moving

My latest lrl it's similar to the first (I mean like performance) but it's more easy to build, in fact, just find the right value for C2, C3 and C4 in order to have an output voltage of 1 to 6V. If you have a test field You can easily check the operation.

Best Regards

FrancoItaly
03-29-2014, 12:05 PM
Hi Tanrila

Receiving signals from mobile phones or from other sources is a side effect, also common to metal detector, but it is a sign of proper functioning, no need to change the frequency that I think is the best.

Best Regards

mustefa ubram
03-29-2014, 12:32 PM
hi franco
one question :
Why signal is in c8 AND c9 is impulsive?
why is not a squared signal?
This impulsive is emitted in the environment?

FrancoItaly
03-29-2014, 05:24 PM
Hi mustefa ubram
The signal in C8 is impulsive because the TR1 stage is an active high pass filter. I don't know Where the impulse goes, the lrl is a passive receiver.
Best Regards

mustefa ubram
04-10-2014, 06:23 PM
my new anttena:)
franco Which version of your lri is the best kind?

FrancoItaly
04-11-2014, 11:01 AM
I think that stylus antenna and coil antenna are very similar. The stylus antenna may be elonged with greater sensibility.
Best Regards

brs
04-12-2014, 12:02 AM
Dear Franco, I want to know the size wire Alantina

FrancoItaly
04-12-2014, 11:13 AM
It's normal insulated plastic wire, I think about 0.5 mm, no critical
Regards

brs
04-12-2014, 05:00 PM
Thank you Franco

mustefa ubram
04-12-2014, 06:23 PM
I think that stylus antenna and coil antenna are very similar. The stylus antenna may be elonged with greater sensibility.
Best Regards
franco My question was about the circuit not antenna.Which version of lrl is the best.circuit 8mhz or with 4046 or....?:)
this is my box with mdf layout.with stylus antenna:)

roccocoin
04-13-2014, 10:41 AM
Greetings all, I asked for a little help at all here on this forum for the construction of a lrl, since I'm not much good at electronics, but to my great regret, no one has seen and no one helped me, they all have made changes, they all mounted the rl franco italy but no one helped me step by step.

FrancoItaly
04-13-2014, 12:32 PM
Hi mustefa ubram
All my Lrls, self-oscillating stage, CD4046 or quarz oscillator, they have same sensibility, but the first is very difficult to build, the second (phase measuring) is difficult to test at home (almost no change if you touch the input antenna), and the quarz oscillator type changes the output voltage when you touch the antenna, this is the proof that all the electronic parts work well.

Best Regards

mustefa ubram
04-13-2014, 11:01 PM
TANK YOU FRANCO
NEW PCB FOR 8MHZ LRL :)

Nicolas
04-14-2014, 12:09 AM
Hi mustefa ubram
All my Lrls, self-oscillating stage, CD4046 or quarz oscillator, they have same sensibility, but the first is very difficult to build, the second (phase measuring) is difficult to test at home (almost no change if you touch the input antenna), and the quarz oscillator type changes the output voltage when you touch the antenna, this is the proof that all the electronic parts work well.

Best Regards

ِCorrect my dear Franco

This is the trust

Thanks you are Gread ( tu eri in gamba ):lol:

Nicolas
04-14-2014, 12:11 AM
TANK YOU FRANCO
NEW PCB FOR 8MHZ LRL :)

Hi Mustefa nice work my friend

but you know what I need to try also this PCB heheheheh:);)

and you know my email

Good luck for testing your device

brs
04-14-2014, 08:38 AM
Hello Mustafa good job Is it possible pcb black and white

FrancoItaly
04-14-2014, 11:33 AM
Hi mustefa ubram
Good work, the pcb is very important because parasitic capacitance may influence the output.

Best Regards

FrancoItaly
04-14-2014, 12:18 PM
Hi All

I would like to give some suggestions for the use of my LRL, you must seek facing north and with the antenna parallel to the ground and moving it from left to right and vice versa. My type of LRL is no motion so the signal does not decrease if you hold the antenna stops. When you get close to the target you need to tilt the antenna to get the signal again and when you're right over the target signal disappears. The human body can shield the signal if it is between the target and the LRL. With the stylus elongated up to about 1m you can get a kind of pinpoint, but in this way increases the sensitivity also to the compass effect. Perhaps the stylus antenna is the most versatile of the antenna coil.

Best Regards

mustefa ubram
04-14-2014, 06:39 PM
HI TO ALL
today my lrl finished:)
my lrl Responds to mobile signals.I used the circuit between the antenna and the spiral coil.I think the coil is more sensitive.MDF is the best ingredient for making.Plastic body in any way is not recommended.Electrostatic makes a lot of noise.Increases the voltage output When the mobile is close to the antenna steel.I did not test in real mode Outside the Home;)

brs
04-14-2014, 11:25 PM
Mustafa corrected Pin4 lm358 A
and I do not see C7 and C8 on Pcb

reza vir
04-15-2014, 07:23 AM
hi mustefa
Please take a video of the test device
Thanks and regards

mustefa ubram
04-15-2014, 08:20 AM
Mustafa corrected Pin4 lm358 A
and I do not see C7 and C8 on Pcb
yes.I have corrected pin4 and later built.my lrl working ritgh according to franco.mobile signal response

mustefa ubram
04-15-2014, 08:22 AM
hi mustefa
Please take a video of the test device
Thanks and regards
ok.soon

mustefa ubram
04-15-2014, 12:48 PM
video test of my lrl with signal mobile:)
http://www.uploadmb.com/dw.php?id=1397562234

Nicolas
04-15-2014, 02:16 PM
video test of my lrl with signal mobile:)
http://www.uploadmb.com/dw.php?id=1397562234

Hi Mustefa Good and nice LRL project. but tell me you have test it near TV and pick

If yes what distance? and test him in magnetic field for buried metal

I put here your video version Youtube

http://www.youtube.com/watch?v=5syhkrkwfn4&feature=youtu.be

thanks and look at you box I have send you email

mustefa ubram
04-15-2014, 03:06 PM
Hi Mustefa Good and nice LRL project. but tell me you have test it near TV and pick

If yes what distance? and test him in magnetic field for buried metal

I put here your video version Youtube

http://www.youtube.com/watch?v=5syhkrkwfn4&feature=youtu.be

thanks and look at you box I have send you email
hi nicolas.tank you.yes i test with tv but not distance Anything.Only responds to mobile signals.It should react to the TV?(My TV system is LED)????
tank you for youtube version:)
I SEND FOR YOU GMAIL;)

mustefa ubram
04-15-2014, 09:51 PM
franco When I'm touching the antenna .The lrl does not show any reaction.Is this normal?
Only when the phone is close to the circuit shows the reaction.When mobile is close to steel antenna is no reaction.is this normal?

FrancoItaly
04-16-2014, 11:42 AM
Hi mustefa ubram
If you are referring to quarz oscillator type when you touch the antenna input the output dc signal decreases slightly and if you turn P1 for led on and touch the antenna input the led go off.

Best Regards

ouiarabe
04-17-2014, 12:49 AM
hi all
I Thank all our teachers for their good ruffle and exchange their experience notament mr nicola and Franco italy and of course all the others and that my testing of pcb lrl by Franco italy

FrancoItaly
04-17-2014, 11:17 AM
Hi mustefa ubram
In your Lrl there is a spiral coil that is between the input and the stylus antenna, this is not in my design, perhaps it may be useful, but it could be not useful. Perhaps the phenomenom doesn't cross the spiral coil.

Best Regards

Nicolas
04-17-2014, 11:36 AM
Hi mustefa ubram
In your Lrl there is a spiral coil that is between the input and the stylus antenna, this is not in my design, perhaps it may be useful, but it could be not useful. Perhaps the phenomenom doesn't cross the spiral coil.

Best Regards

Yes I m agree with you Franco and is correct what you said. But need tested that in full area when we have buried metal