Lrl from Italy

[FrancoItaly]

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]

PDK frequencies switch selector

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]

SELECTOR

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]

More options selector

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 :

[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.

[Sneshko]

Dear Morgan!
Thank you very much!
All the best!
Sneshko

[michael]

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

[ATTACH]18661[/ATTACH]

[ATTACH]18662[/ATTACH]

[ATTACH]18663[/ATTACH]

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.

[detectoman]

morgan may be you can put in series or parallel, two variable capacitor for fines frecuences adjust

[Morgan]

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]

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]

i can understand what cap, in parallel go resonance and serie go to frecuence? what is right? anybody know?

[DrTech]

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]

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]

High Frequency does penetrate

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]

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