Product Features: 1. Utilizes high-quality electronic components and precision manufacturing processes to ensure durability and long service life. 2. 10MHz constant temperature operation, ultra-low phase noise, low noise, portable and reliable. 3. This product adopts a 10MHz frequency standard, provided by an OCXO (Oven-Controlled Crystal Oscillator). 4. An oven-controlled crystal oscillator means that this product uses a constant temperature bath to maintain the crystal oscillator or quartz crystal oscillator at a constant temperature, thereby minimizing the output frequency changes of the oscillator caused by changes in ambient temperature, resulting in higher calibration accuracy, up to 0.01Hz. 5. Equipped with an SMA (External Threaded Internal Hole) interface. Widely applicable for marking in audio systems, decoders, shortwave radios, frequency meters, signal generators, and other instruments. Product Parameters: Name: Frequency Reference Module Model: OCXO-10MHz DSD Sampling Frequency: 2.8224 MHz (DSD64) PCM Word Length: 16 bits PCM Sampling Rate: 44.1 kHz Output: RCA Current Consumption: Less than 750mA during warm-up, less than 300mA during operation Warm-up Time: 5 minutes Calibration Accuracy: 0.01Hz Frequency Stability: 5e-12 Output Level: 10dBm 2dBm @ 50Ω VRMS: 0.7071V @ 50Ω VPeak: 1.0V @ 50Ω -P: 2.0V @ 50Ω Output Impedance: 50Ω Connector Type: SMA, External Screw, Internal Hole Interface Specification: DC 5.5 x 2.1mm PCB Board Size: 66 x 43 x 13mm Product Application: Temperature-controlled 10MHz ultra-low phase noise frequency reference module, frequency reference source, OCXO frequency reference source, used for reference in audio systems, decoders, shortwave radios, frequency counting sources, and other instruments. Material: PC + Metal Color: Black Package Contents: 1 x Frequency Reference Module 1 x 9V Battery Connection Cable This package only includes the above contents and does not include other products. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual product. The measurement tolerance is +/- 1-3cm.