Description about this circuit I want to please expert friends answer what parts it consists of?

[homaion]

Description about this circuit I want to please expert friends answer what parts it consists of?

[kt315]

good. put your circuit.

[homaion]

[homaion]

Related to this device

[homaion]

This is another model of the same device that is sold in 6 models

[homaion]

Please, friends who specialize, provide all the information about these circuits and the efficiency of these circuits for ancient cases, because some fraudsters are selling this device at high prices. Thanks to all the dear engineers.

[6666]

They are all LRL, they are a scam

[homaion]

They are all LRL, they are a scam

I know, but I want an expert answer so that we can convict these swindlers. Thanks

[6666]

I know, but I want an expert answer so that we can convict these swindlers. Thanks

Good luck with that, you will not be the first person to try.

[Qiaozhi]

Description about this circuit I want to please expert friends answer what parts it consists of?

Please read the forum rules -> Basic Rules of the Forums

Especially the part where it says:
"We no longer discuss so-called "Long Range Locators" (aka LRLs) or dowsing in the Geotech forums. If you wish to discuss these subjects, please register at www.longrangelocators.com"

[Skippy]

The first device, the 'RM-1' looks like a 4-probe resistance meter, so it's not total nonsense ( maybe some ) , it clearly has 4 copper rods, connecting to the 4 terminals on the front panel. And to be honest, it looks quite well made, so may actually be capable of doing something useful. The meter is labelled with 'gold' , 'silver' etc on the bottom scale, so that is baloney. But there is a logarithmic resistance scale above it. It's more scientific than the radio antenna contraption. And no hot melt glue, bottles of holy water, or magic crystals inside, either.

[homaion]

The first device, the 'RM-1' looks like a 4-probe resistance meter, so it's not total nonsense ( maybe some ) , it clearly has 4 copper rods, connecting to the 4 terminals on the front panel. And to be honest, it looks quite well made, so may actually be capable of doing something useful. The meter is labelled with 'gold' , 'silver' etc on the bottom scale, so that is baloney. But there is a logarithmic resistance scale above it. It's more scientific than the radio antenna contraption. And no hot melt glue, bottles of holy water, or magic crystals inside, either.

Is it true that I want to see if this circuit really works or not, that is, there is no electronics specialist in this group?

[homaion]

This device is the receiver and the transmitter and we are talking about the circuit, not lrl

[Qiaozhi]

Is it true that I want to see if this circuit really works or not, that is, there is no electronics specialist in this group?

If you're asking whether this device will distinguish whether a buried target is gold or silver (as implied by the meter) then the answer is no. It appears at first glance to be a resistivity meter, but with claims designed to confuse the technically challenged.

Just because it contains some convincing electronics doesn't mean that it works as advertised.

Why do you think all the LRL and dowsing stuff was moved offsite to the longrange locators forum?

[Skippy]

The RM-1 circuit clearly contains a microcontroller IC, such as a Microchip PIC , AT-Tiny etc , which is performing most of the functions of the electronics. There is a programming connector next to it, labelled ISP ( In-circuit Serial Programming) , and there is an Analog Devices chip that is probably an Analogue-to-Digital Converter. This will be how the micro reads the resistance between the probes. There may also be a Digital to Analogue Converter to drive the moving-coil meter.
There is also a lot of battery-related parts on the board. A charging regulator, for example.

----

Labelling the meter 'gold' , 'copper' etc is bogus. But if you look at a popular VLF metal detector, such as a Garrett ACE250, you will also see the ID scale labelled with 'gold' , 'silver' , 'pulltab'. It's the same trick, hoping the customer will think the machine can pull out gold jewellery from a park without you digging any aluminium, lead, zinc etc trash.