The paper describes estimation of the energy parameters of electromagnetic communication channel through rock for staff safety and emergency response in the mines. The optimum frequencies of radio waves in depend on the conductivity of the rock and the distance ranges are determined. The minimizing of the transmitting power at the limited antenna size and electromagnetic mine noise is considered.

The paper proposes to exclude the active source of the seismic field from the measurement scheme, which is often a massive truck with equipment installed on it, which in its turn makes it difficult and increases the cost of field-work. The proposed passive measurement installation allows the detection of hydrocarbon deposits by registering the natural fields of the Earth. All measurements can be carried out by one person due to the use of magnetic antennas. A method of field measurements by means of such installation, as well as measurement data on a real gas condensate field are presented.

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