The White Rabbit (WR) protocol aims at providing time and frequency dissemination over GbE optical fiber networks. Our focus, beyond qualifying WR in a practical environment, is to consider the user perspective of distributed synchronous data acquisition and radiofrequency signal generation. Considering the lack of training on this topic, a dedicated network has been setup between the École Nationale Supérieure de Mécanique et des Microtechniques (ENSMM) [French] hosting 3 hydrogen masers, the Besançon Observatory hosting Cs clocks, and the teaching department at the University for training purposes.
Current deployment has allowed to assess the round trip (4-km) delay correction jitter in the 10 ps range with peak-to-peak values in the 100 ps range. Such a performance is sufficient for distributed data acquisition of radiofrequency signals, e.g. for Direction of Arrival (DoA) measurements, up to the GHz range.