MINEORO 2008 MODS. - Page 6

Geo · #**126** 12-20-2018, 06:50 PM

There is not passive receiver.
1st transistor works as oscillator so 1st diode demodulate the carrier signal from oscillator.
Lm386 has a gain of 200 and amplify the modulated signal.
This is the theory of Mineoro. I keep the original schematic of Mineoro FG... and i do some modifications to increase the gain.
What other you want to learn???

iam_7up_gamer · #**127** 12-20-2018, 11:28 PM

geo can you put here just oscillator schematic ?

Geo · #**128** 12-21-2018, 06:20 AM

Here there is the schematic of the receiver.
The 1st Transistor works as oscillator

http://www.longrangelocators.com/for...0&postcount=17

iam_7up_gamer · #**129** 12-21-2018, 07:02 AM

yes is a kind Colpitts oscillator

iam_7up_gamer · #**130** 12-21-2018, 07:07 AM

geo about you use static detector . there work as static detector or electric detector ?

how much is sensitivity ?

zakari · #**131** 12-21-2018, 08:13 AM

HI ALL
GEO THANKS ALOT FOR YOUR EXPLANATION BEFORE I WAS THINKING THE Q1 IS THE MIXING TRANSISTOR(CARRIER WAVE FROM CHAMBER ION OSCILLATOR AND MODULATE WAVE) AND CHAMBER ION AND ITS OSCILLATOR ACT LIKE THE TRANSMITTER AND PART OF THIS WAVE GOING TO THE RECEIVER LIKE THE PD AND PDK
I SAW YOU CHANGE THE VALUE OF CAPACITORS AND RESISTORS OF ORIGINAL RECEIVER OF
FG79 DO YOU CHANGE THE SCHEMATIC ?
DO YOU CHANGE FREQUENCY TUNING OF POT CORE OR NOT THAT IS ALMOST 35-40KHZ?

BEST REGARDS
ZAKARI

Geo · #**132** 12-21-2018, 02:20 PM

Quote:

Originally Posted by iam_7up_gamer

geo about you use static detector . there work as static detector or electric detector ?

how much is sensitivity ?

You don't explain me. Witch if works asstatic detector or.....

Geo · #**133** 12-21-2018, 02:27 PM

Quote:

Originally Posted by zakari

HI ALL
GEO THANKS ALOT FOR YOUR EXPLANATION BEFORE I WAS THINKING THE Q1 IS THE MIXING TRANSISTOR(CARRIER WAVE FROM CHAMBER ION OSCILLATOR AND MODULATE WAVE) AND CHAMBER ION AND ITS OSCILLATOR ACT LIKE THE TRANSMITTER AND PART OF THIS WAVE GOING TO THE RECEIVER LIKE THE PD AND PDK
I SAW YOU CHANGE THE VALUE OF CAPACITORS AND RESISTORS OF ORIGINAL RECEIVER OF
FG79 DO YOU CHANGE THE SCHEMATIC ?
DO YOU CHANGE FREQUENCY TUNING OF POT CORE OR NOT THAT IS ALMOST 35-40KHZ?

BEST REGARDS
ZAKARI

Hi.
Please don't write with capital letters, is very tiring.
This schematic has nothing to do with FG79. It is for FG80, FG90 and DC2008.
Frequency depends of the model. Fg90 is near to 34Khz, FG80 80...85 and DC2008 near to 100....105Khz. This time i don't remember exactly

Mike(Mont) · #**134** 12-21-2018, 02:43 PM

Probably bad timing but my two bitcoins here (not worth much LOL) I like the idea of a higher power transmitter and a lower power receiver. Assuming the transmitter actually does something, that is the active part of the system. Furthermore, some soil (higher conductivity) needs more power to transmit through--to burn off trapped voltages (spontaneous potential).

Geo · #**135** 12-21-2018, 05:37 PM

I believe it could be done at a different system.
Here transmitter and receiver have the first stage common, so the more high power at oscillator the lower sensitivity at receiver. All the story is to find the balance point for better results(at normal terrain).

iam_7up_gamer · #**136** 12-21-2018, 07:26 PM

thanks geo for put schematic of dc 2008 . but is not complete , my mean is part list !!

can you share part list ?

Geo · #**137** 12-22-2018, 06:08 AM

Sorry but i can't post part list.
I received many mails that ask me to share the part list.
Because i don't like to answer to all the same, i write it here.
No part list.
I attached the schematic of receiver so the members that understands electronics to see what is happening.
I believe that every one can experiment on this schematic by calculated the components....

Regards

iam_7up_gamer · #**138** 12-22-2018, 06:48 AM

yes geo you say right part list can calculation . just take time

you'r static detector is sensitivity to especial metal ??

Geo · #**139** 12-22-2018, 07:15 AM

My detector is not static....

Mike(Mont) · #**140** 12-22-2018, 02:41 PM

Quote:

Originally Posted by Geo

I believe it could be done at a different system.
Here transmitter and receiver have the first stage common, so the more high power at oscillator the lower sensitivity at receiver. All the story is to find the balance point for better results(at normal terrain).

Yes, I realize my system is different and it's very easy to change the power levels. Don't know what type of soil you have, I think I read somewhere the soil in Greece is difficult. We have the bentonite clay around here. Clay can hold water and make for areas of high conductivity. The voltage can get trapped in the the soil.

https://gpg.geosci.xyz/content/physi...duplicate.html

iam_7up_gamer · #**141** 12-22-2018, 05:49 PM

Quote:

Originally Posted by Geo

My detector is not static....

if is not static so is electric , is right geo ??

micro voltmeter or mili voltmeter ???

Geo · #**142** 12-22-2018, 06:21 PM

Quote:

Originally Posted by Mike(Mont)

Yes, I realize my system is different and it's very easy to change the power levels. Don't know what type of soil you have, I think I read somewhere the soil in Greece is difficult. We have the bentonite clay around here. Clay can hold water and make for areas of high conductivity. The voltage can get trapped in the the soil.

https://gpg.geosci.xyz/content/physi...duplicate.html

Yes, you remember right.
The soil here has big amounts of iron oxides and decrease the phenomenon.
I saw very big difference at phenomenon from City to City.
At places with big amounts of iron oxides when increase the transmitting power then we have erratic signals.

Geo · #**143** 12-22-2018, 06:26 PM

Quote:

Originally Posted by iam_7up_gamer

if is not static so is electric , is right geo ??

micro voltmeter or mili voltmeter ???

............

zakari · #**144** 12-22-2018, 06:56 PM

hi
I know geo interesting to combine mfd with radio like the andy flind
I guess the second circuit is rf

best regards
zakari

zakari · #**145** 12-22-2018, 07:03 PM

Quote:

Originally Posted by Geo

Hi.
Please don't write with capital letters, is very tiring.
This schematic has nothing to do with FG79. It is for FG80, FG90 and DC2008.
Frequency depends of the model. Fg90 is near to 34Khz, FG80 80...85 and DC2008 near to 100....105Khz. This time i don't remember exactly

i am sorry my mean was fg90 about tuning frequency35-40khz

Geo · #**146** 12-23-2018, 06:42 AM

Quote:

Originally Posted by zakari

hi
I know geo interesting to combine mfd with radio like the andy flind
I guess the second circuit is rf

best regards
zakari

Maybe electric field detector, maybe UV receiver maybe both... i did n't decide yet.
Experiments will show...

Mike(Mont) · #**147** 12-24-2018, 04:57 PM

Conductive ground absorbs the signal.

http://www.fondriest.com/environment...-salinity-tds/

Geo · #**148** 12-24-2018, 07:46 PM

I agree, this is the reason that iron oxides at soil decrease the signal.
Also a big amount of iron near to target destroy the phenomenon...
Near to my City we are not Lucky

humhum · #**149** 12-25-2018, 11:25 AM

Quote:

Originally Posted by Geo

I believe it could be done at a different system.
Here transmitter and receiver have the first stage common, so the more high power at oscillator the lower sensitivity at receiver. All the story is to find the balance point for better results(at normal terrain).

Yes , Absolutely right.

humhum · #**150** 12-25-2018, 11:30 AM

Quote:

Originally Posted by Geo

Here there is the schematic of the receiver.
The 1st Transistor works as oscillator

http://www.longrangelocators.com/for...0&postcount=17

First Tr. is self RF OSC ,also time is very sensitive Preamplifier for Static and Electromagnetic potentials .