GPR - project

[Seeker]

Hi Seeker,
The frequency (2ghz) are very unusable for treasure hunting . We need a GPR with max depth about 3-5 meters. With 2ghz you will search something in Wall or in ground to 20 cm only
Best,

Hi Ivan ,
2GHz can penetrate little, but enough in ground. May be you make parallel with 2,4 GHz WLAN ? There are some differences.
I have made experiments and receive signal trough thick stratum of ground.I think this is enough for GPR application.

Regards

[Ivan]

Hi,
I mean some frequency about 900Mhz, because of enough resolution and good depth of penetrating . Easy for building (“low” R.f. freq.) and so on.



Best,

[Ivan]

Hi,
I think it's good idea to look on page 94 - Microwave journal - august 2001.
May be this is a good point to start. The article is Very good explanation of bow-tie antenna and impulse generating circuit – very close to ,“DIY GPR “ and big trouble for every construction of gpr – ringing antennas.
Best,

[Seeker]

Hi,
I think it's good idea to look on page 94 - Microwave journal - august 2001.
May be this is a good point to start. The article is Very good explanation of bow-tie antenna and impulse generating circuit – very close to ,“DIY GPR “ and big trouble for every construction of gpr – ringing antennas.
Best,

Hi Ivan,
If you read all message in this project , you will understand what I think about UWB GPR . Exist many constructions useing UWB technology, but antena problems and SHF equipment do them realize impossible for many amateurs.
My idea is simple: use narrow band TX and RX, spiral antenas and minimize SHF part to few elements.Another are low frequency parts and unexpensive equipment.
900MHz band is not suitable for me, there is GSM band (in my country) , but not big different between 900 and 2400 MHz.

[Unregistered]

Hi SeeKER

I study your massage and experiments a but GPR It Is interesting

May be please sand for me SHF module and schematic GPR ?

or attached in this page PDF form?
Best Wishes

[ikarus.nu]

a MICROWAVE uses 2.4GHz.
Is the resonating frequency of water, at that freq the water molecules vibrate so much and they heat.


ciao

[Seeker]

a MICROWAVE uses 2.4GHz.
Is the resonating frequency of water, at that freq the water molecules vibrate so much and they heat.


ciao

So what? WLAN work at the same frequency .

regards.

[Seeker]

Hi guys,
there aren't anybody who want to build GPR ?!
Ok.
I complete the schematic and unit. I will send you pictures soon.

[SASHA SCG]

Hi guys,
there aren't anybody who want to build GPR ?!
Ok.
I complete the schematic and unit. I will send you pictures soon.

Hi Seeker,i want to build GPR.
Thanks!

[Seeker]

All what you need to build unit, I discuss in thread.You mast have some EE experience to get building of GPR. I can help only with advice, but you mast design the unit. Good luck.

[cankur]

Hi guys,
there aren't anybody who want to build GPR ?!
Ok.
I complete the schematic and unit. I will send you pictures soon.

Hi Seeker, i want to build GPR

Thanks.

[schatzsucher]

but, it´s in german:
http://www.ubka.uni-karlsruhe.de/cgi...ektrotechnik/4

[Seeker]

but, it´s in german:
http://www.ubka.uni-karlsruhe.de/cgi...ektrotechnik/4

Sorry, I can not read German.

[Jaxom]

Now this would be interesting for the project I mentioned in the tech forum. Gpr doesn't need to be ground balanced as far as I know, nor does it need to move. Trying to design a robot is rought enough as is...

I have researched GPR, from what I understand you want higher frequencies for shallow, yet accurtate viewing. One company that sells gpr's actually mentions coins with one unit and it runs in the 1000mhz range.

Jax

[Seeker]

Hi Jax,
if you read all thread , you will understand my idea for sweeping frequency.
I think 2400MHz is good frequency to use.You can find at the market ready-to-use units for components and easy construction of GPR.
If you have some interest in this type GPR, I will help you in development.