Louhi EM System
Finnish Company Radai Ltd developed a FDEM Survey System.This system expressing as Louhi EM has two operation options; 1)A large loop on ground as an EM source 2)A small portable EM transmitter loop Both systems utilize a stand-alone and light-weight 3 component EM receiver that can be towed by a drone! For link information detailed including dataset structure about system; https://open-research-europe.ec.europa.eu/articles/2-3