Rohde & Schwarz OCXO reference oscillator H690A, retrofittable in R&S Service (hardware option)
The Rohde & Schwarz OCXO reference oscillator H690A (part number 1173.5851.02) is a high-stability oven-controlled crystal oscillator designed as a hardware option for select Rohde & Schwarz instruments. This OCXO module is retrofittable exclusively by R&S Service, ensuring precise frequency reference performance and improved long-term stability for measurement equipment. The H690A enhances the frequency accuracy and phase noise characteristics of compatible devices, making it suitable for demanding measurement applications where signal integrity is critical. Installation and integration are performed by authorized Rohde & Schwarz service personnel.
