5m depth with radar @ deserts!

[Funfinder]

http://www.time.com/time/magazine/ar...923112,00.html

A few minutes ago I did read about this in the book:
"Riddles of the ancient world" and found a weblink about this topic.

So if Columbia space-shuttle can detect 5m depth from 100's kms above
it must be possible with ground near equipment, too and much better.

If some metal object is buried between dry sand and bedrock it would
give a very good signal. It would detect anything compact, not metal only.

Does anyone have more information about it and how much such a
radar-device would cost, what frequency it uses and where you can
buy such stuff.

[Qiaozhi]

So if Columbia space-shuttle can detect 5m depth from 100's kms above it must be possible with ground near equipment, too and much better.

The answer to your question appears to be here ->

"Radar waves generally penetrate only a few centimeters of the earth, since the beams are dissipated by moisture in the surface of land. But in the dry Sahara, the radar waves were able to pierce to depths of five meters, reflecting from bedrock."

It is the extreme dryness of the Sahara that allows these depths to be achieved. Also, the data collected was image enhanced to bring out the features. In normal [wetter] conditions you would not be able to achieve anywhere near that depth.

[kt315]

you dont need a space-shuttle for the depth

[ApBerg]

you dont need a space-shuttle for the depth

Nice photo ..... but I think they need a larger coil ....

[Funfinder]

@ Qiaozhi
I read this article and the dryness is the solution but would be interresting
getting more info about the technical aspects etc. of those radar-devices.
Thx to kt315 info there exists already some 'radar-rollers' and I guess it
should be possible to built such radar waves transmitter receiver with
simple 35cm satellite dish, transceiver, amp and recognition circuit.

[Qiaozhi]

you dont need a space-shuttle for the depth

Do you have more information on this detector? It looks like it's probably a PI.

[kt315]

Do you have more information on this detector? It looks like it's probably a PI.

i read one wrote it is minelab gpx with coiltek coil. yours

[WM6]

i read one wrote it is minelab gpx with coiltek coil. yours

Yes, it is Coiltek. They only export to North America and Sudan.

http://www.docsdetecting.com/docspla...ek/coils1.html

[Qiaozhi]

Yes, it is Coiltek. They only export to North America and Sudan.

http://www.docsdetecting.com/docspla...ek/coils1.html

Good detective work.

[Fred]

Google Images has a new feature for searching images by just dragging them in a dropbox.Works great and can be very useful

[Funfinder]

So it's not really radar?!
Would sonar work in deserts, too?
But such coilsize I'd like:
24x14inch or better 28x18inch (66x40cm)