[aft_72005]

Thanks for pictures , did you built the carl MFD and test it on a long range target?

Hi Great Alex
I built Carl MFD some years ago. For test, put some old silver coin
In the ground and behind it at soil. Apply 8.7 kHz sine wave with 20vpp
To ground probe . Carl did use 7.8khz , but I read at old geotch forum that
Esteban Said, correct frequency for silver is 8.7 kHz.
For transmitter I use 10 MHz Philips function generator.
Sometimes I feel that the two Lrods mention to silver coins and sometimes
I didn’t that feel. Sometimes I feel that the two Lrods, crossover on target
Location. And sometimes nothing any . I was astray in the matter.
Also I read more times at forum which Lrods , didn’t work . Then I stopped
My examination with Lrods. Until yet , Geo said me , MFD working .
Also Morgan picture show , he found some coins .
Best regards.