A new name and new direction Since 1986 ACT – formerly Advanced Crystal Technology – have evolved into a leading design partner for high-performance frequency control products. Custom frequency solutions through new partnerships Our partnership with Esterline Research and Design (ERD) enables us to push the boundaries of high-precision oscillator technology. These breakthrough products set new standards for TCXOs and OCXOs, creating the highest-performance and most accurate oscillator technology in the marketplace today. A wide range of standard frequency products We also have a robust frequency control product portfolio, including crystals, clock oscillators, TCXOs and filters. A global distribution network As part of the Acal group and via our independent distribution partners, ACT can support your frequency control requirements on a global basis.