The O-CDFXYZXX-X-X-X-10MHz/100MHz from NEL Frequency Controls is an Ultra Low Phase Noise Dual Frequency OCXO Reference Module that consists of 2 OCXOs at 10 MHz and 100 MHz. The unit at 100 MHz is phase/frequency locked to the 10 MHz one. The lower frequency OCXO provides for excellent frequency stability over temperature, time (aging), supply and load variations, as well as exceptionally low phase noise close to the carrier, and short-term stability (Allan Deviation). The 100 MHz OCXO provides for ultra low phase noise on the noise floor and high output power. Both OCXOs are packaged in hermetically sealed metal cans. This module is ideal for radar, instrumentation and telecommunication systems applications.