Geophysics Forum

Welcome. 400 MHz will normally allow you for penetration up to approximately 8 m below the surface - but it all depends on the geological conditions.
Though I see a lot of people also using 500 MHz antennas for such research, but their penetration range is smaller.

As geophix said, GPR would be most likely the best for graves, cavity, and voids. If you aim for looking for graves, they are usually shallow. I had an opportunity to look for graves - we used 400 MHz antenna for that. Yet keep in mind that for graves that are older it may not be that effective. But...

Hello, I have a question related to Res2dinv data processing for ERT. I conducted the measurements three times at the same profile and during stage 1 of my research I used Terrameter LS, while during two next stages I performed the measurements using Terrameter LS 2. It would not be much of an issue...