Abstract
A complex of equipment for recording three components Hx, Hy, and Hz of the pulse component of an electromagnetic field in the range of infralow-very low frequencies, which is incorporated in the geophysical observatory of the Polar Geophysical Institute (Barentzburg, Spitsbergen archipelago), is described. The complex operates under the control of the Linux operational system and is integrated in the local observatory computer network, thus providing both the remote access to data and the GPS time synchronization. The use of buffer transformers in both the signal circuit and the circuit for connection to the collective observatory supply line made it possible to improve the electromagnetic compatibility of this complex with the main instruments of the observatory. The technique for conducting the absolute calibration of the equipment is described.
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