The modular ultra precision Model XLi Time and Frequency System is the most precise, versatile and flexible solution for timing and synchronization requirements.
One of the great design benefits of the XLi is that, because of its variety of option cards, a company can customize it to fit to their specific application needs. Whether your application demands redundancy in power supplies, GPS, or any other function, all it takes is the proper configuration of cards.

Symmetricom’s XL-GPS Time and Frequency Receiver is a high performance instrument that provides an assortment of precision time and frequency outputs. This high value, networked managed, time and frequency instrument supports requirements for, test and measurement, central timing systems, process automation, range timing systems, power industry applications and many others.

The 4410A is a time and frequency recovery system that generates precise signals traceable to UTC. It utilizes a GPS disciplined rubidium frequency reference to provide timing outputs characterized by the short term stability of the atomic reference and the long-term stability of GPS. It provides multiple copies of 5 different timing signals on the rear of the 1U-high, 19" rack-mount chassis. Year, day, and time-of-day are displayed on the front panel.

Provides highly accurate timekeeping and low phase noise
As broadcasters go digital, pervasively distributed synchronization is a key operational requirement single frequency networks that offer Digital Video Broadcast. Symmetricom’s 4370A DVB Sync Source ensures that all stations in a network achieve highly reliable and precise synchronization.