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#1
10-19-2012, 09:37 PM
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to wm6 and j-p
hi to wm6 and j-p and other freinds
I need a vlf transmitter with telescopic antenna.That broadcast frequencies to within 200 meters.I have them in a loop antenna vlf transmitter.but I need a telescopic antenna vlf transmitter.  Please help me 
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#2
10-19-2012, 10:13 PM
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Again? You got answer months ago.
Short telescopic antenna and VLF transmitter do not suit well together. Example: for VLF TX of 7,5kHz you need 1/4 wave telescopic antenna of about 10 kilometres of length. Of course such 10km 1/4 wave antenna can be inductively shorted to even 1m, but this change all, polarisation, transmitting power etc.
__________________
Global capital is ruining your life? You have right to self-defence!
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#3
10-19-2012, 10:43 PM
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What is the basis of this circuit? The circuit generates a frequency vlf.And is produced by victor track.trn The system makes use of a telescoping antenna vlf waves.If you can explain about this circuit tanks
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#4
10-19-2012, 11:37 PM
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How much treasure have you found with this circuit? Best wishes, J_P
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#5
10-20-2012, 06:33 AM
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I want to send vlf waves to a radius 100 meters or 200 meters with telescopic antenna. Please give me a guide or schematic
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#6
10-20-2012, 09:51 AM
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Quote:
This circuit cannot make a A vlf broadcast to 100 or 200 meters from using a telescopic antenna. But you can test with a telescopic antenna to see for yourself that it does not send a vlf signal to 100 or 200 meters. A coil antenna can send VLF more than 100 meters from this transmitter. For 100 meter radius, you need a long length of wire, 640 meters length. Then make a mark on the ground of 100 meter radius where you want to broadcast. Then you must put the 640 meters of wire on the ground -- put this wire in a single loop on the ground to follow on the 100 meter radius you marked on the ground. After the 100 meter radius wire is put on the ground, then connect one end of the wire to the antenna connection of your circuit board, and connect the other end of the wire to the ground connection. This is exactly how a geologist connects to broadcast vlf to a 100 or 200 meter radius, or even more radius. After the transmitter is connected, and it is broadcasting vlf in 100 meter radius, the geologist will take his small vlf loop receiver in his hand to search for buried things inside the 100 meter radius. He can mark different rocks, water, and even metals he finds from using his vlf loop receiver. Then the geologist can make a map to show things he finds buried under the ground. If the geologist was not a geologist, but was a treasure hunter instead, then he would call this map a treasure map. If you want to use a straight antenna, there is one way a straight antenna can be used to broadcast vlf to a large radius. But maybe the straight antenna is bigger than a telescopic antenna, and maybe you need more than one straight antenna connected together. See alternate method for straight vlf antennas here: https://en.wikipedia.org/wiki/VLF_Transmitter_Cutler You will find diagrams and photos on the right side of the page to show how these straight aerial antennas are used. Best wishes, J_P
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#7
10-20-2012, 05:07 AM
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__________________
Geo
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#8
10-20-2012, 04:09 AM
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Hallo from Greece
Do you have any idea about an old detector from Japan I think that the model was mitshubishi fd410g Regards
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Hybrid Mode
