The new time and Frequency laboratory for the Sardinia Radio Telescope

A time laboratory was established at the Astronomical Observatory of Cagliari more than one century ago, aimed for time-tagging scientific observations. At present, this laboratory is facing up a deep refurbishment in order to cope with the much tighter specifications on phase noise, time resolution, and frequency stability required by the new scientific applications planned for the Sardinia Radio Telescope. As a result of the participation to millimeter Very Long Baseline Interferometry and pulsar timing experiments of SRT, the new Time and Frequency laboratory will be called to provide extremely low phase noise and highly stable frequency references.