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#2
12-19-2011, 10:53 PM
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#4
12-20-2011, 09:35 AM
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Capacitor in thank circuit depends on VLF signal transmitter frequency in your region. In schematic given capacitor can be of little use if there are not radio signal inside tank circuit resonate frequency. But even there are not VLF radio signal, you can build weak, simple and cheap transmitter tuned at AL718 frequency and put it in field of your search ten meters away. You need to tune your AL718 ferrite antenna at the best directivity by changing ferrite rods mutual distance and coils position. You need transmitter for such tuning placed of about 50 meters away (good one is battery powered signal generator with two wires - one inserted in earth and other as antenna up in air). For some additional idea about transmitter you can look here: http://franitzasab.webs.com/transmit...kitreviews.htm
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#5
12-20-2011, 12:19 PM
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I visit the page you recommend,
There are very interesting transmitter kits, Which one you thing is the best solution To work us a pair with a gold gun ? I think also that I have to change the coil capacitors With big value trimming capacitors for the tunning Of the ferrite antenna. Also if somebody have a good schematic for a transmitter we can try to build one, Thank s a lot.
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#6
12-20-2011, 04:08 PM
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Please put a transmitter that is above.I have not found such a transmitter on the Internet.Please put the transmitter.?? Put in attachments pcb gg817 in sprin layout  enjoy
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#9
12-20-2011, 11:01 PM
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1. You can build L1 as ferrite rod antenna with same inductance (regarding to desired TX frequency) for better antenna directivity. 2. You can build vertical (or telescopic) antenna by help of LF ferrite toroid transform with his primary windings tuned to desired TX frequency.
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#10
12-20-2011, 11:05 PM
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I can see you are giving very advanced secrets to locating gold from long distances. The engineering is amazing... Such an elegant solution to locating the elusive treasure signal. Who would have thought of using a toroid ferrite? Maybe this is better than Dr. Best, because easy to build. I will watch with interest to see how much treasure mesy64 and Jack recover with this advanced breakthrough design. Best wishes,  J_P
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#11
12-20-2011, 11:22 PM
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don't forget that dowsers are capable to make miracles (especially equipped with proper MD).
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#14
12-21-2011, 10:00 AM
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despite your English is very atractive, I do not understand what you ask. Sorry.
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#17
12-22-2011, 07:23 AM
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How can one end of the telescopic antenna to Earth???? Is it possible? How to Plan???(A telescopic antenna and a signal transmitter to the ground together) This will help the gold gun receiver to detect metals??? I wish I had found the English language to improve understanding
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#18
12-22-2011, 01:21 PM
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Yes it is possible that one end of antenna to be grounded to Earth. Look at last drawing and find point with comment "here grounded". You can instal wire from this point to ground. With this connection antenna is grounded to Earth. GG can theorethically detect something (what and on which distance still need to be answered). You cannot expect to detect coins at distance, but maybe bigger deposits of metal. It depend on directivity of your GG receiving antenna.
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#19
12-22-2011, 01:53 PM
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Please explain how the vlf transmitter with gold gun???? What do you recommend to set the frequency? Please see the picture and identify specific areas? Mr. wm6 please explain about how the vlf waves in the Earth and in space.The telescopic antenna transmits its own waves in the Earth without ground wire? with tespect
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#20
12-22-2011, 02:19 PM
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You get this by tuning LC tank circuit in Tx and RX antenna stages. Try first with say 10 turns on RX ferrite rod, measure inductance, calculate whole inductance of say 500 to 1000 turns, calculate resonance frequency with C of 1 to 10nF, repeat the same with TX. Read post #4 too again.
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#21
12-22-2011, 02:28 PM
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#23
12-23-2011, 12:08 AM
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Here is my schematic (sorry I have not PCB, cause this MAX IC is not in my PCB design library): http://www.dz863.com/drawsch_1925.html
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#25
12-23-2011, 09:47 AM
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What is the reason why you want to change from coil antenna to telescopic antenna? Best wishes, J_P
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Linear Mode
