LongRangeLocators Forums  

Go Back   LongRangeLocators Forums > Main Forums > Long Range Locators

Reply
 
Thread Tools Display Modes
  #501  
Old 07-01-2020, 11:38 AM
Bill512 Bill512 is offline
Member
 
Join Date: May 2006
Location: Greece
Posts: 76
Default

Quote:
Originally Posted by Morgan View Post
the Alonso PD locate a gold sovering 8gr in air test 30 cm

A copper coin with similar diameter, is detectable from Alonso PD and from what distance?
Reply With Quote
  #502  
Old 07-01-2020, 06:44 PM
Morgan's Avatar
Morgan Morgan is offline
Guru
 
Join Date: Nov 2007
Posts: 2,629
Default

PD is made with metal detector, mixed with electromagnetic/electrostatic passive receiver,thats the circuit who play has LRL in buried objects.
Reply With Quote
  #503  
Old 07-02-2020, 05:22 PM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

Good day

here is the measurement of double 45 Turn coil of receiver in alonso-andreas PD.
please notice that the value is approx but within the range
you must position this coil on omega TX coil and nullify the received signal using oscilloscope.
however, it's function is disputable. is it necessary? does it have a role in remote detection? or it is just for IB detection part? can i omit it? ( seems possible)
anyway, here is the approx value.



Reply With Quote
  #504  
Old 07-02-2020, 07:15 PM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Hi to All , Does here Alonso Passive Receive Coil is 2x45 Tour in same Way , and in Total will be 90 tours ? OR
45 tours to one Way , other 45 tour is in Reverse Way ?
Reply With Quote
  #505  
Old 07-03-2020, 05:59 AM
folharin's Avatar
folharin folharin is offline
Guru
 
Join Date: Mar 2011
Posts: 259
Default

you are all wrong on the laps
Reply With Quote
  #506  
Old 07-03-2020, 09:53 AM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Quote:
Originally Posted by folharin View Post
you are all wrong on the laps
Ok , What is Correct for this Laps ?
Reply With Quote
  #507  
Old 07-05-2020, 12:37 PM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Thumbs up

Quote:
Originally Posted by behnamvp View Post
Good day
66 KHZ receiver or transmitter?
if you notice to values given and written on the schema, by calculation other frequencies
will appear. practically as i measured by oscilloscope, not much difference in calculation
and in performance.
something is missing in alonso-andreas PD. there must be an "extra factor" which has crucial
influence that PD need it to work and detect even fresh gold under ground.





here you can see 181 khz which measured by oscilloscope.my device


you did nice work . Alnso PD in hi sensitivity is unstable .
Reply With Quote
  #508  
Old 07-10-2020, 11:47 AM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

Quote:
Originally Posted by aft_72005 View Post
you did nice work . Alnso PD in hi sensitivity is unstable .
Mr.aft_72005
Thank you for admiration. Thank you
About instability in Alonso-andreas PD, I disagree with you. In my experience, it is stable.
As picture below, I made transmitter and ferrite rod receiver in blocks and separately.
Despite andreas that said transmitter is powerful, I say no.it is not powerful also it seems
Does not have influence on task or to say it does not have role in target detection.
Anyway, it is discussable.




Reply With Quote
  #509  
Old 07-10-2020, 12:23 PM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

good day

here are a few pictures that shows 3.5 cm receiver coil
it works just in IB detection section and i think it can be omitted. also its receiver part can be ignored.

i think,not necessary to have weak normal metal detector here.

obviously,for many, it is very easy to make this coil but perhaps for a few is unclear from schema.
just took pictures to illustrate it. hope to be useful.

important: please notice that for adjusting this coil (receiver) on omega coil (transmitter),
you need oscilloscope.



































Reply With Quote
  #510  
Old 07-11-2020, 09:35 PM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Default

Quote:
Originally Posted by behnamvp View Post
Mr.aft_72005
Thank you for admiration. Thank you
About instability in Alonso-andreas PD, I disagree with you. In my experience, it is stable.
As picture below, I made transmitter and ferrite rod receiver in blocks and separately.
Despite andreas that said transmitter is powerful, I say no.it is not powerful also it seems
Does not have influence on task or to say it does not have role in target detection.
Anyway, it is discussable.





I disagree with you. In my experience, it is stable.


What I said you was my experiment some years ago .
From what distance your PD can detect small coin ??
Reply With Quote
  #511  
Old 07-17-2020, 08:23 AM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

Quote:
Originally Posted by aft_72005 View Post
I disagree with you. In my experience, it is stable.


What I said you was my experiment some years ago .
From what distance your PD can detect small coin ??
good day
as you know, alonso-andreas PD with such small coil and using low power, obviously
is a weak IB metal detector if using as a normal metal detector.

i don't have standard, international coin such as euro coin or US cents
therefore i used a one-gram 21 C gold coin with diameter of 1 cm also a 9 volt standard battery. both as indicator to be at least international

mentioned gold coin from 2 cm at max sensitivity and 9 volt battery from 5 cm to 6 cm
are detectable by alonso-andreas PD as a normal IB metal detector

here are a few pictures



Reply With Quote
  #512  
Old 07-17-2020, 08:53 AM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

Good day

i measured alonso-andreas PD current consumption for each part individually

despite Mr.andreas said that alonso PD has powerful transmitter, i disagree with him

it is a weak transmitter. and in my opinion, transmitter has a quite a low influence in remote sensing. would like to say, it does almost nothing.

i mentioned before that another factor is playing main role and perhaps it is UHF signals
transmitting by some stations at Greece also at some other countries

it is clear in the picture that the transmitter uses just approx 3 mAh

you can imagine what is the power of 180 Khz relaxation oscillator that uses 18 volts, 3 mAh. also it produces damped-wave, each pulse has 125 micro second length

so the alonso transmitter is weak and not powerful

here are a few pictures.hope to be useful









Reply With Quote
  #513  
Old 08-05-2020, 01:04 PM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Quote:
Originally Posted by behnamvp View Post


at max sensitivity and 9 volt battery from 5 cm to 6 cm
are detectable by alonso-andreas PD as a normal IB metal detector


Hi behnamvp , I see that when is in noulling position some Alonso PD locating Fresh IRON : Ядосан: (for example Your 9V Battery) from small distance , but so not find buried IRON ,
İf we use Filter with signature of metal or electronic filter , so may be will reject Fresh IRON finding ??
Reply With Quote
  #514  
Old 08-08-2020, 11:38 PM
Morgan's Avatar
Morgan Morgan is offline
Guru
 
Join Date: Nov 2007
Posts: 2,629
Default

has you know the iron underground stay rusty very quikly, the PDK or the PD locate conductive metals that not rust or create the patina when underground for many years,noble metals...
Reply With Quote
  #515  
Old 08-09-2020, 11:33 AM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Quote:
Originally Posted by Morgan View Post
has you know the iron underground stay rusty very quikly, the PDK or the PD locate conductive metals that not rust or create the patina when underground for many years,noble metals...

Dear Morgan , When situation is So this is very Good info for PD that locating only buried
precious Metals (Silver, Gold, Copper, Aluminyum and etc ...) and reject Ferrous metals (iron , nickel and etc... ) , Thanks for your Test infos .

Morgan I make Test with my PD , that it also Can locate Fresh 3 - 5 gram Silver and Gold
alloys from 1 to 2 meter distance (when PD adust is in very critical position) I'm in shocked .

Also with modification not locating Fresh IRON .
Reply With Quote
  #516  
Old 08-12-2020, 10:03 AM
Dubulumach Dubulumach is offline
Guru
 
Join Date: Oct 2017
Posts: 283
Default

behnamvp

Turn the omega upside down or 180 deg.
Tune Tx 120 KHz.
Passive receiver must catch spark from 1.5v battery at 2-2.5 m. Find correctposition,which is very hard. You need umetric slide mechanism for moving ferrite only 1 axis to catch exactly 1 point with respect to omega.
Reply With Quote
  #517  
Old 08-12-2020, 10:18 AM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Default

Quote:
Originally Posted by Dubulumach View Post
behnamvp

Turn the omega upside down or 180 deg.
Tune Tx 120 KHz.
Passive receiver must catch spark from 1.5v battery at 2-2.5 m. Find correctposition,which is very hard. You need umetric slide mechanism for moving ferrite only 1 axis to catch exactly 1 point with respect to omega.

Dubulumach
when omega tx on then PCB5 cannot catch 1,5 v battry from 2.5 meter .
if you relay built it please upload movie .
Reply With Quote
  #518  
Old 08-12-2020, 06:23 PM
Dubulumach Dubulumach is offline
Guru
 
Join Date: Oct 2017
Posts: 283
Default

Quote:
Originally Posted by aft_72005 View Post
Dubulumach
when omega tx on then PCB5 cannot catch 1,5 v battry from 2.5 meter .
if you relay built it please upload movie .
aft_72005
First it's not nice answering on mails which aren't addressed you!
Second I don't owe you anything and I doesn't need make proof for anybody!
and
Third I have said: Passive receiver must catch spark from 1.5 battery ant minimum 2-2.5m. This is possible only when it's properly tuned in respect to omega coil.

I don't build lrl for selling, not selling and speading technology and secrets and don't uploading videos for anybody.
I think i was clear!
Reply With Quote
  #519  
Old 08-12-2020, 09:52 PM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Default

Quote:
Originally Posted by Dubulumach View Post
aft_72005
First it's not nice answering on mails which aren't addressed you!
Second I don't owe you anything and I doesn't need make proof for anybody!
and
Third I have said: Passive receiver must catch spark from 1.5 battery ant minimum 2-2.5m. This is possible only when it's properly tuned in respect to omega coil.

I don't build lrl for selling, not selling and speading technology and secrets and don't uploading videos for anybody.
I think i was clear!

First it's not nice answering on mails which aren't addressed you!

Go and see my profile . you can see my email address clearly
Again here my email : aft72005.1@gmail.com


Second I don't owe you anything and I doesn't need make proof for anybody!
and


I built Alnso clone some years ago and try more with it . when omega tx on pcb5 can detect 1,5 volt short circuit from 60 cm . also I try micrometric mechanical system . there isn?t magic point !!!!!!!!! .
Then you said you can try it from 2.5 meter !!!!!!! . also you said no movie no proof !!!!!
Also there isn?t radio active ferrite road I asked you and you didn?t reply .



I don't build lrl for selling, not selling and speading technology and secrets and don't uploading videos for anybody.
I think i was clear!
[/QUOTE]



Also I am not PD seller . I research several years about some PD .there are here many fake data .
clear is when speaking then must proof what was said .
Reply With Quote
  #520  
Old 08-12-2020, 09:59 PM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Question

my question from all people having Alnso clone PD . when omega TX/RX and PCB5 is on ,
what is detection rang for 1.5 volt batt, short circuit ?? . use 30 cm wire long .
Reply With Quote
  #521  
Old 08-12-2020, 11:55 PM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Quote:
Originally Posted by aft_72005 View Post
my question from all people having Alnso clone PD . when omega TX/RX and PCB5 is on ,
what is detection rang for 1.5 volt batt, short circuit ?? . use 30 cm wire long .
1.5 V Bat with 40cm wire my PD sens from 2.50m (when is in max critical adjust)
also with max critical adj , Locating FRESH Gold or Silver from 1.50 meter .

Regards
Reply With Quote
  #522  
Old 08-13-2020, 09:22 PM
aft_72005's Avatar
aft_72005 aft_72005 is offline
Guru
 
Join Date: Feb 2005
Location: The empire of Cyrus the great...Iran
Posts: 791
Default

Quote:
Originally Posted by humhum View Post
1.5 V Bat with 40cm wire my PD sens from 2.50m (when is in max critical adjust)
also with max critical adj , Locating FRESH Gold or Silver from 1.50 meter .

Regards

please upload movie show that test . when omega tx /rx and PCB5 is on and work active mode .
Reply With Quote
  #523  
Old 08-14-2020, 12:48 AM
humhum's Avatar
humhum humhum is offline
Guru
 
Join Date: Aug 2007
Posts: 678
Default

Quote:
Originally Posted by aft_72005 View Post

please upload movie show that test . when omega tx /rx and PCB5 is on and work active mode .
my Tx and Rx Coils not is Omega type this is with Different method ,
but When I have time , I will make Video with 1.5V Bat. Spark for You .

Regards .
Reply With Quote
  #524  
Old 08-15-2020, 12:01 PM
behnamvp behnamvp is offline
Junior Member
 
Join Date: Jun 2020
Location: iran-shiraz city
Posts: 24
Default

Quote:
Originally Posted by Dubulumach View Post
behnamvp

Turn the omega upside down or 180 deg.
Tune Tx 120 KHz.
Passive receiver must catch spark from 1.5v battery at 2-2.5 m. Find correctposition,which is very hard. You need umetric slide mechanism for moving ferrite only 1 axis to catch exactly 1 point with respect to omega.
Thank you for advice. Much appreciation for trying to help.
Well, many years ago, I had some experiment in making omega-coil
First made one for magnum metal detector ( andy flind)
Then by modification, used it for chrome-2 metal detector
Again by modification, used it for quasar-arm metal detector
Anyway. Technically I do not see difference between straight or upside-down placement
Of omega-coil. Technically there is no reason to turn coil 180 degree or move the ferrite above the coil
In my opinion, no difference in function. At least I cannot find technical reason
About your advice to tune ferrite to 120 kHz and spark test, I disagree with you
I googled and found out that frequency of signal which produced by spark depends to wire and connection length of spark-making circuit. I mean antenna.
So, your 1.5-volt battery spark will produce frequency that obviously is different than others
But according to Wikipedia, by estimation, almost 1.5-volt battery test may produce frequency
Between 50 kHz to 150 kHz. Depends on a few factors.
As I measured ferrite coil value regarding to capacitor shown on schema, it can receive 70 to 80 kHz
All can tune ferrite to receive 1.5 volt-spark. Not hard. Just by changing capacitor and moving coil on rod
But there must be a source or good reason to consider a specific frequency and I could not find
I suspect to beat frequency. When passive-receiver has low-band pass filter which does not allow
Frequency above 15 Hz (practically 18 to 20 Hz) to pass and when you and mr.andreas say mechanical
Micro-movement adjustment, then I suspect to beat frequency.
It should be something between 50 to 200 kHz.
I must study more.

Reply With Quote
  #525  
Old 08-15-2020, 03:52 PM
Dubulumach Dubulumach is offline
Guru
 
Join Date: Oct 2017
Posts: 283
Default

Quote:
Originally Posted by behnamvp View Post
Technically I do not see difference between straight or upside-down placement. Of omega-coil. Technically there is no reason to turn coil 180 degree or move the ferrite above the coil

But according to Wikipedia, by estimation, almost 1.5-volt battery test may produce frequency Between 50 kHz to 150 kHz. Depends on a few factors.
Hello behnamvp
120KHz is correct freq.for Alonso PD.

If you havent seen it doesnt matter its no exist difference. There exist a big difference in near field configuration. In addition of magnetic component of Tx from the ferrite passive receiver there are involved complex configuration of superpimposed Mag. and Elec. fields.

Dont look at Wiki as releable source of info. Its MSM controlled internet media. They write what they want.

Spark gap transmitter is a Tesla discovery. Its HV device where many factors were involved in one short time frame.

1.5V battery is low power, low voltage sourc of extremelly weak mag.field. Its preliminary test for your build. Real test need to be done at your personal test poligon on a real targets. We have deal with EPR of gold, silver and other metalls.

No move ferrite above the coil but center it at bottom line of turned for 180 deg. omega. Correct distance between omega and ferrite should be found experimentally.

For playing with pulses and lenght of wire as function of waveguide only reliable method is TDR or time domain reflectometry. You need very quality DSO and low capacitance probes aslo HV type for playing with this kind of circuit.

Regards
Dubulumach
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 02:50 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.