MHM-2020 Active Hydrogen Maser 76001-205

Active masers use stimulated emissions to generate the hyperfine transition frequency of ground-state hydrogen atoms. The resulting stabilities, when measured over intervals of 1 second to 1,000 seconds, are the highest for any commercially available clock. Our MHM-2020 hydrogen maser is designed for a 20-year operating life and low maintenance. With the recently integrated drift compensation software, the maser achieves daily drift rates of less than 3E−16.