#476
|
|||
|
|||
I think it's a special modulation of an infrared beam
|
#477
|
|||
|
|||
Well then, everything is in your hands ..... improve, why are you asking permission. If everything is fine with the disassembled static camera.
|
#478
|
|||
|
|||
Thank you my friend
|
#479
|
|||
|
|||
Yes, for nothing ..... I didn?t immediately understand either .... But with IR or UV it?s still very tight. And yes, there is not enough time.
|
#480
|
|||
|
|||
any improvement with your IR UV ?
|
#481
|
|||
|
|||
No improvements! I am a radio amateur lacking knowledge, and most importantly time. So far, the result is 3 meters, and then on beer cans or aluminum at a not significant depth. Ik does not work on my polegon. Perhaps he dug deep into the target.
|
#482
|
||||
|
||||
Becarefull... modulated IR beam can creates faulty signals to Mineoro magnetic receiver...
__________________
Geo |
#483
|
|||
|
|||
i think the best use of infrared is esteban's LRL IR with TDA
|
#484
|
||||
|
||||
I don't know it...
__________________
Geo |
#485
|
|||
|
|||
what can i add to my mineoro fg90 magnetic receiver for make is a good lrl ???
|
#486
|
|||
|
|||
very promising experience with fg90
|
#487
|
||||
|
||||
FG90 never will be one of the best lrl..
__________________
Geo |
#488
|
|||
|
|||
why , it' very stable , sensitive , directional , it catch LF and VLF broadcast .........
|
#489
|
||||
|
||||
Because there are other .. much better
__________________
Geo |
#490
|
|||
|
|||
maybe
|
#491
|
||||
|
||||
__________________
Geo |
#492
|
||||
|
||||
Video is taken 11...12 years ago..
__________________
Geo |
#493
|
|||
|
|||
link doesn't work
|
#494
|
||||
|
||||
Sorry but i can't do something.
It is a video from me attached on a Brasil site!!! The size of file is very big to attach it here..
__________________
Geo |
#495
|
|||
|
|||
successful recovery, but different from the original, detects a can of coca cola from 40cm,
there is a very weird thing about power supply |
#496
|
|||
|
|||
I have never seen such a perfect receiver , I intend to add a VHF
|
#497
|
|||
|
|||
Hi dear forum members, I added an oscillator to my FG90, connected to a small 100mH inductor, it can react to an aluminum foil at 35 cm, I need the opinion of Geo and J-player , I hope to have a fast answer , thank you .
|
#498
|
|||
|
|||
I added a TDA7000 connected to the magnetic receiver at the IN point, very sensitive to static charge, but a decrease in sensitivity of the magnetic loop ,
what is the ideal voltage at the IN point without having a decrease in sensitivity ??? |
#499
|
|||
|
|||
abdou2014 send me schematic of your FG-90 and PCB pictures at both side of device. Upload at some Iranin host site and send me a link privately here at mailbox. I will see, could I help you with your RF-sniffing mod. OK ? There are many "underwather reefs" which must be taken to the account if you want to work it properly and detect the gold.
The problem you have is magnetic cross-coupling. Could be solved. Need more info. Regards ! |
#500
|
|||
|
|||
thank you very much dear friend, you gave me hope, tomorrow I will take pictures and send them to you
|
|
|