Lrl from Italy

[FrancoItaly]

in my experience 5 silver coins buried about 25cm for at least a month, but I think it is also important the type of soil.

[Napsterce]

Hello friends, i have built the sensor stage and on the output it gives a voltage under 1 volt and when i touch the antenna it decreases for about 0.10volts. And it is not stable, at connecting to the 12v source it gives 0.36v and when i touch the antenna it goes to 0.26v, after a 2-3 minutes it goes to 0.56v and when i touch the antenna it goes to 0.40v. Is that ok or not? Thank you all.

[pigeon]

pcb

hi all

someone had the pcb

thank you

[Napsterce]

After resoldering the L1 the starting voltage on the output is 1.36v and it keeps increasing, after 5 minutes it went up to 2.86v. When i touch the antenna it decreases the output for 0.10-0.15v. Is this ok or is there some problem? Franco? I checked all the soldering joints.

[dream_man]

Hello dear Franco. Sorry, how much is the VCC of IC in "low battery indication"?,,, 12V or 18V?

[FrancoItaly]

VCC of IC in "low battery indication" it's 12V. I suggest you adjust P1 so that "low battery" is on when the battery voltage drops below 16V.

[dream_man]

VCC of IC in "low battery indication" it's 12V. I suggest you adjust P1 so that "low battery" is on when the battery voltage drops below 16V.

thank you dear Franco

[Napsterce]

Dear Franco, i have built the lrl, but the leds glow all the time and when i touch the antenna one of them turns off. When I adjust the gain and threshold to more sensitive and less gain only the red led glows and when i touch the antenna it turns off. Is this correct or it should be the other way, when i touch the antenna the led to start to glow? Everything is built by your schematics, the display stage is with 3 led diodes with lm358p.

[brs]

dear franco
Thank you to everyone help you perfect man Franco

[dream_man]

Thank you dear Franco for supporting us.
Here I attach both "8MHz - Quartz LRL Power + Display (3 Led)" and "8MHz - Quartz LRL Sensor Stage + Power Stage with Low Battery Indicator + Display Stage (3 LEDs)".
Hope it helps other friends to make their PCBs.

[pigeon]

PCB

Thank you dear Franco for supporting us.
Here I attach both "8MHz - Quartz LRL Power + Display (3 Led)" and "8MHz - Quartz LRL Sensor Stage + Power Stage with Low Battery Indicator + Display Stage (3 LEDs)".
Hope it helps other friends to make their PCBs.

MR DREAM MAN

have you the pcb please.

thank you

[dream_man]

MR DREAM MAN

have you the pcb please.

thank you

Hello friend;
I've not made any pcb yet. sorry for that.

[pigeon]

okay

Hello friend;
I've not made any pcb yet. sorry for that.

ok thank you

[Napsterce]

Dear Franco, i have built the lrl, but the leds glow all the time and when i touch the antenna one of them turns off. When I adjust the gain and threshold to more sensitive and less gain only the red led glows and when i touch the antenna it turns off. Is this correct or it should be the other way, when i touch the antenna the led to start to glow? Everything is built by your schematics, the display stage is with 3 led diodes with lm358p.

Franco?

[FrancoItaly]

" only the red led glows and when i touch the antenna it turns off " this is correct.

Best Regards