Instrumentation for Cs-time transfer to calibration laboratory

Summary form only given. National time of Finland is traced from GPS satellite receiver and from RNS (Russian Loran) due to long NTILS test period. Short term stability at National Standards Laboratory (KMNL) is maintained by rubidium clocks. There are several commercial Cs-clocks at 10 km distance from KMNL. During the last year we have studied several methods to build a link to those clocks owned by Finnish TELE. Finally we have built and tested instrumentation based an simultaneous GPS- and TV-time comparison at both sides. At KMNL, the phase of all local clocks is measured every 10 minutes. We decided to use exactly the same data collection procedure at both sides. The instrumentation consists of a GPS-receiver, TV-receiver, time interval counter with 1 ns resolution, a computer with telephone modem and some additional electronics. In addition several analog variables like temperature and pressure have been measured. The aim of the project is to have an independent atomic time for KMNL