LongRangeLocators Forums  

Go Back   LongRangeLocators Forums > Main Forums > Long Range Locators
Reload this Page Very low frequency circuit very good
Register FAQ Calendar

Reply
 
Thread Tools Display Modes
  #1  
Old 12-09-2019, 12:32 PM
shahrayar shahrayar is offline
Senior Member
  
Join Date: Jun 2019
Posts: 137
Default Very low frequency circuit very good

Very low frequency circuit very good
Very sensitive to static electricity and electromagnetic fields
Lightning strikes may harm him
It has an insulation feature, but I don't know how
Possible help from engineers, such as developing the antenna
Reply With Quote
  #2  
Old 12-10-2019, 07:07 PM
shahrayar shahrayar is offline
Senior Member
  
Join Date: Jun 2019
Posts: 137
Default
The device is completely stable
The TV senses from 1/2 meter


[IMG][/IMG]
Reply With Quote
  #3  
Old 12-11-2019, 01:39 PM
shahrayar shahrayar is offline
Senior Member
  
Join Date: Jun 2019
Posts: 137
Default
very sensitive
I recommend making them, as the hand senses over 20 cm, the computer senses over 5 meters and many advantages
Reply With Quote
  #4  
Old 12-12-2019, 08:59 AM
shahrayar shahrayar is offline
Senior Member
  
Join Date: Jun 2019
Posts: 137
Default
I shrunk the antenna so that the amplifier will not malfunction
By extending the antenna, it picks up the TV signal from 3 m

https://www.youtube.com/watch?v=kiaZ9xE0KEU
Reply With Quote
  #5  
Old 12-14-2019, 09:18 PM
humhum's Avatar
humhum humhum is offline
Guru
  
Join Date: Aug 2007
Posts: 678
Default preamp high impedance
This circuit is very high impedance Preamp, this schema sharing one Friend from this forum.
Attached Images
 
Reply With Quote
  #6  
Old 12-15-2019, 03:33 PM
FrancoItaly FrancoItaly is offline
Guru
  
Join Date: Feb 2006
Location: Liguria, Italy
Posts: 1,371
Default
Quote:
Originally Posted by humhum View Post
This circuit is very high impedance Preamp, this schema sharing one Friend from this forum.
You must use CA3130 (very high impedance), 741 operational has a very low input impedance.
Reply With Quote
  #7  
Old 12-15-2019, 07:32 PM
abdou2014 abdou2014 is offline
Guru
  
Join Date: Mar 2014
Posts: 1,042
Default
ZAHORI WORK FINE WITH CA3130
Reply With Quote
  #8  
Old 12-15-2019, 10:15 PM
abdou2014 abdou2014 is offline
Guru
  
Join Date: Mar 2014
Posts: 1,042
Default
Quote:
Originally Posted by shahrayar View Post

Very low frequency circuit very good
Very sensitive to static electricity and electromagnetic fields
Lightning strikes may harm him
It has an insulation feature, but I don't know how
Possible help from engineers, such as developing the antenna
it's active antenna for sound card VLF reception , it's not an LRL

https://www.qsl.net/dl4yhf/speclab/vlf_rcvr.htm
Reply With Quote
  #9  
Old 12-16-2019, 03:46 PM
shahrayar shahrayar is offline
Senior Member
  
Join Date: Jun 2019
Posts: 137
Default
Quote:
Originally Posted by abdou2014 View Post
it's active antenna for sound card VLF reception , it's not an LRL

https://www.qsl.net/dl4yhf/speclab/vlf_rcvr.htm
Is it not suitable for detecting electromagnetic fields of metals?
Reply With Quote
  #10  
Old 12-16-2019, 05:18 PM
abdou2014 abdou2014 is offline
Guru
  
Join Date: Mar 2014
Posts: 1,042
Thumbs up
Maybe with some modification, it will be able to detect a big treasure at some meters
Reply With Quote
  #11  
Old 12-25-2019, 01:31 PM
reza vir's Avatar
reza vir reza vir is offline
Guru
  
Join Date: Feb 2013
Location: iran-mazandaran
Posts: 345
Smile
Quote:
Originally Posted by shahrayar View Post
Is it not suitable for detecting electromagnetic fields of metals?
No this is vlf filter
It can be used at the inputs of some other circuits
__________________
No matter how the speed of light is high , Darkness is one step ahead .
Reply With Quote
  #12  
Old 02-10-2020, 06:33 PM
humhum's Avatar
humhum humhum is offline
Guru
  
Join Date: Aug 2007
Posts: 678
Default
Can be so like .....
This is part from all system .
Attached Images
 
Reply With Quote
  #13  
Old 02-11-2020, 01:24 AM
WM6's Avatar
WM6 WM6 is offline
Guru
  
Join Date: Nov 2007
Location: Borovnica, Slovenia
Posts: 2,392
Default
Even better:




__________________
Global capital is ruining your life?
You have right to self-defence!
Reply With Quote
  #14  
Old 02-11-2020, 03:55 PM
abdou2014 abdou2014 is offline
Guru
  
Join Date: Mar 2014
Posts: 1,042
Default
Quote:
Originally Posted by humhum View Post
Can be so like .....
This is part from all system .
GOOD CIRCUIT WHAT'S VLF RECEIVER , CAN YOU SHARE THE VALUES ?
Reply With Quote
Reply

« Previous Thread | Next Thread »

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 12:19 PM.

Contact Us - LongRangeLocators - Archive - Top

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