The TSC 4420A is a timefrequency recovery system that generates precise signals traceable to UTC, including a Stratum 1 NTP server. It utilizes a GPS disciplined rubidium frequency reference to provide timing outputs characterized by the short-term stability of the atomic referencethe long-term stability of GPS. The versatility of the TSC 4420A makes it suitable for a variety of applications. It provides multiple copies of 5 different timing signals on the rear of the 1U-high, 19" rack-mount chassis. Year, day,time of-day are displayed on the front panel. The standard Ethernet connection simplifies integration with complex systems by allowing healthstatus information to be monitored remoy.