60 khz receptor

[folharin]

[ATTACH]184
is possible to do this with a receiver circuit?62[/ATTACH]

[rider]

http://www.fileswap.com/dl/wfeDZ6dWTa/VLF.lay.html

PCB for this schematic

[Dave J.]

If you do it right, you can locate Ft. Collins, Colorado from a thousand miles away.

Locating a treasure chest full of gold buried 3 centuries ago, with the right skills you might be able to detect that standing right over the top of it. Unfortunately for LRLers, the skill set required to do that comes from the real world and not from the tooth fairy.

--Dave J.

[mustefa ubram]

[ATTACH]184
is possible to do this with a receiver circuit?62[/ATTACH]

have you a better schematic?

[ma330]

cut off low pass filter is 15.3hz no 72 kh

[rider]

cut off low pass filter is 15.3hz no 72 kh

the filter located after the demodulation.there are 72 khz at this location

[rider]

the filter located after the demodulation.there are 72 khz at this location**

**-there is no 72 KHz at this location-

[Geo]

Hello Vasili, how are you??
What about the vlf receiver with the TCA440??
Is it ok or needs modifications .

Regards

[rider]

vlf rca440

hello George. is ready. has very good sensitivity and selectivity and has been inserted in some applications.

http://palmosdetect.blogspot.gr/2013...z-120-khz.html

[WM6]

Good work rider.

[Geo]

hello George. is ready. has very good sensitivity and selectivity and has been inserted in some applications.

http://palmosdetect.blogspot.gr/2013...z-120-khz.html

I"ll try it for sure. It's a project for the winter

Regards

[rider]

Thank you WM6. GEO If you need anything I am at your disposal.