As part of the project “Monitoring Earth’s Evolution and Tectonics” (MEET), within the framework of the National Recovery and Resilience Plan (NRRP), INGV is going to establish a geophysical laboratory in an area characterized by low seismic noise, both natural and anthropogenic, located in Sos Enattos (NU). This laboratory, named “Sardinia Far fAult oBsERvatory” (FABER, [1]), was also conceived in the area which is a candidate to host the Einstein Telescope (ET, [2]), the third- generation gravitational wave detector. This report provides a detailed description of some of the instrumentation acquired under the project. Here, we present the results of a short acquisition campaign of ambient noise data through a spiral array in the Sos Enattos area. The survey had the twofold...