The land based seismic-gravimetric complex creation and exploitation specialties

The creation of the seismic-gravimetric complex, working in automatic regime during several years, let us register seismometers and gravimeters test masses stirring synchronal in different frequency bands. These frequencies overlap lays within decimals Hertz. The seismic-gravimetric complex contains two relative gravimeters CG-5, one absolute gravimeter А10, one ternary seismic station Ugra, one automatic meteorological station and a two-frequencies GPS receiver. As base devices the relative gravimeters are used. For these devices the gravimeter scale zero displacement account problem was solved. For the fulfillment of the long time regime observations by the seismic-gravimetric complex a gravimetric observatory was built in the area with a low level technogenic noises. As a result of the preliminary geophysical observations we can state that the informative parameter is a root-mean square deviation of the measured gravity values.