Hey FrancoItaly
Good afternoon
I think these emails are very important. Both are from MorgandePortugal. If all he said is a truth, and i think he is not a fraud, we need AGC whatever we make your or his version of LRLs. I was experimenting a lot with your PLL LRL and Quartz LRL, and found some intersting behaviour. One of many is we need periodicaly discharge telescopic antenna simply touching the ground for a moment. It seems "Halo" particles on some way were glued to antenna and overload frontend premplifier, moving working point over the safe threshold and boost earth mag.field detection. All kind od Sky/Ground/Compass effect are due to detection of very weak Earth H-field.
Looking for this terrible problem i was found some interesting new dated research in magnetometry logging and i think you should read whole science article. Seems you have right because we have deal with some kind of motional electric field with spinning. Of course these experimental data are not for public use, so if you are interesting i will send you a copy to your email. Just drop me your email link via private message.
Second, I've madee a preliminary design of new passivew receiver frontend (change original Alonso circuit), with new AGC block, linearised demodulation output, and couple of LPF stages. This new design work with 2 ferrite rods, one is active and other use to balance the 1st to avoid Sky/Ground/Compass overload as MorgandePortugal said. I will no post my schematic, to avoid steal of my ideas. Even Esteban didn't posted complete schematics of his working LRLs.
There is new idea working with 3 ferrite rods wit same permeability in differential configuration, where two rods are active and 3rd is a balance rod. This configuration gives new opportunity like gradien measurement, which could be important as i think. This imply use of very high dV/dt preamplifierswith biggest possible GBWP, with new synchro detector system to cut-off unwanted noise jamming and all kind od interferences.
The big problems are correct frequencies of passive receiver. 77KHz simple do nothing here in South Serbia. I need a new empirical data.
"Hello
As Franco Italy told you,this is the compass efect,it hapens with very sensitive LRLs,in some countries the PDK-2.1 have this problem,and the solution is reduce the sensitivity or calibrate the LRL in the direction of this lines,this way avoid completly the interference and still enough power to locate buried targets. Maybe the PDK videos i post in this forum help you to understand HOW TO PINPOINT the buried objects,what is more dificult is most of the gold or silver objects are located with PDK in only one direction (see the video of gold object found by robalocarapanda,where is possible to see clear,the PDK locate only in one direction) however there are other object that are located in two dir. others in three or even four dir., one good way to learn is to use the method of TRIANGULATE ,where you check the signals in all directions and make ground MARKS to understand the position of this object. Other mistery is when you finaly locate the exat point where the object is buried,still another problem with the PDKs and maybe the ToTEM too,when you lower the LRL less than one meter above the target the LRL OVERLOAD and lost the signal ,and when you raise it again for 1m or more above,the signal returns (check this Phenomenon in the robalocarapanda video) all this caracteristics was signaled by me in this forum many times. Happy days for you and your family.
Regards
Morgan"
"I believe you locate N-S magnetic lines,becouse this can hapen very often when the coil or ferrite is not well balance or other possibility is wrong number of turns in the RX(receptor) coil,also little change in value of capacitor near RX some times solve the problem, but,as i told before, the more fast solution is to calibrate the ToTeM in the direction of this N-S line and start a search.This way the LRL only locate the buried objects and avoid the N-S lines. We have many many things to learn about LRLs,but it will worth all the time we lost with them !!! People like Funfinder,Max,WD40 etc etc , are allways present as skeptics becouse ,you know,still skeptics that said the men never arrive to the moon,and when some of them locate gold coins with LRLs,they will say,this is coincidence...thats it".
Good Luck
Morgan"
ps: You should try schottky diode sensor with tuned shorted wave-guide attached to your telescope antenna, because the simply fact there is 10dB boost of overal sensitivity for your LRL's, using it. If you want i will send you "know how" via private email.
Best regards
Dragan
South Serbia
East Balkan (not west like EU politician lie).
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