Digital seismograph for regional observing and the results of its testing
During the last few years digital seismic apparatus development was provided in the Institute of Geophysics. Some sets of digital seismic apparatus were made and tested at the regional seismic stations of the Carpathian network. The created equipment DAS is reliable and has sufficiently high operational properties due to use of modem chips and replacement of some analog chains (filtering, integrating, etc.) on their program analogues. The flexible algorithms of useful seismic signal detecting was applied.