This frequency reference source adopts premium electronic parts, with accuracy process, which ensures fine durability and long service time. Constant temperature 10MHz, ultra-low phase noise, low noise, portable and reliable. Wide applications, which can be used for instrument benchmarks such as audio systems, decoders, shortwave radios, frequency meters, signal sources, etc.. Features: Adopts premium electronic parts, with accuracy process, which ensures fine durability and long service time. Constant temperature 10MHz, ultra-low phase noise, low noise, portable and reliable. This product adopts 10MHz frequency standard, and which is provided by OCXO oven controlled crystal oscillator. Constant temperature crystal oscillator means that this product uses a constant temperature bath to keep the temperature of a crystal oscillator or a quartzs crystal oscillator constant, so that the change in the output frequency of the oscillator caused by changes in the surrounding temperature is reduced to a minimum, which makes it has higher accuracy, 0.01Hz. Equipped with SMA outer screw inner hole interface. Wide applications, which can be used for instrument benchmarks such as audio systems, decoders, shortwave radios, frequency meters, signal sources, etc.. Specifications: Name: Frequency Reference Source Material: printed circuit board Current consumption: preheating stage