Engineering topics
Publications and source records attributed to Nottarp, K..
The results are given on the performance measurements, on the dependence on external temperature, and on external magnetic field of a hydrogen maser. It is compared with another hydrogen maser. Details of the transportation and installation of the maser are given. The hydrogen maser frequency is compared with cesium oscillators to derive long-term behavior.
The METEOSAT ranging signal's available every 3 hours for about 1.5 minutes, its phase is measured against the second pulses of the station clocks. A system study shows that the accuracy obtainable could be in the order of 30 ns. The receiver unit consists of a 2 m diameter fixed antenna, a low noise broadband receiver, and a phase tracker and demodulator. The overall costs will be less than $20.000 US.