Q-Tech’s QT4100 High Stability OCXO is a high reliability signal generator that provides an HCMOS or Sine Wave output. It is designed to withstand radiation level up to 100kRad (total dose), high shock and vibration, and is intended for use in space applications. The OCXO has very low phase noise. Low G-Sensitivity SC-Cut Crystal utilized in the design guarantees 1PPB/G or better. The reliable construction of this design qualifies it for stringent environmental applications.