MV197 10MHz OCXO Adapter Frequency Standard Frequency Reference Low Phase Noise

MV197 is a high-stability OCXO. After 5 minutes of power-on, its accuracy can reach 1x10-8=0.01ppm. After 30 minutes of power-on, its accuracy can reach 1x10-9=0.001ppm. Its accuracy has been adjusted to ±1mHz=0.0001ppm, and 53220A for Agilent is used to detect its accuracy.

eBay