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It depends on several factors as the GPR antenna you use, and the target size you are looking for. Q: At what flight altitude those depths of investigation have been computed?Ī: We usually suggest to fly 1 - 4 m high over the surface.Technically we can integrate any light enough antenna. Q: What is the brand of the GPR you are using?Ī: Radarteam and RadSys.lv.Q: Penetration given from drone at what height?.You also need to register the GPR antenna in local FCC or IC (for Canada) office. We have certified our RadSys Zond-12e 500A antenna in both countries. Q: These frequencies have to meet the government's limitations, right?Ī: You need to have a certified GPR antenna if you are speaking about the US and Canada.Q: At which operation altitude of the drone do you still achieve a 50% penetration depth of the GPR?Ī: Altitude (or the distance between the antenna and the surface) should be less than the length of EM wave in the air corresponding to the center frequency of the antenna.We provide a "footprint" calculator to the customers.

Q: What is the Field of View of the GPR?Ī: It depends on the frequency, type of antenna, soil composition.

Q: Regarding uneven terrain, does the antenna need to be parallel to the ground?Ī: Yes, it is better that a GPR antenna is parallel to the surface.

Q: Follow up on clay question: The reason why we can't see below clay is because of the water the clay absorbs?”Ī: Because wet clay has good conductivity and absorbs EM wave energy very effectively.

But at the end of the dry season sometimes you can detect something. Q: Is it guaranteed that you CANNOT see anything under a clay layer?Ī: In most cases - yes.Q: What's the device behind you in the video?Ī: It is a DJI M600 Pro drone with a Zond-12e Drone 500A GPR system (orange antenna).

Q: Do you have any case study to detect tunnels that are used by the human traffickers running up to 3 or sometimes 5 m below the borderlines by using GPRs?Ī: At the moment we don't have such a case study, but we know that it is possible to detect underground tunnels if they are enough big for people.

Q: Do you configure the GPR/Antenna perpendicular or parallel to the acquisition line?.

With our existing solution which allows us to remotely turn on and off the GPR antenna and fly very low (1m AGL) we are complying with the existing law.

Q: What experiences do you have with the Air traffic law and other laws in connection with GPR on a drone?Ī: Hi, we have checked existing rules in the US/Canada and Europe.

Answers provided by UgCS Support team to questions asked during the webinar: