The 100 MHz and 20 MHz signals were generated by a hydrogen maser
and used to modulate the optical signal transmitted from the control room at one antenna (DSS-13) through the control room of a remote antenna (DSS-12) and back to DSS-13.
Tender issueH2020 WP15 H001 - Enhanced Passive Hydrogen Maser
(PHM) Framework: This framework will implement activities covering the development of the enhanced on-board Passive Hydrogen Maser
(PHM) Clock intended for consideration under Galileo 2nd Generation considering obsolescence technology enhancement miniaturisation and improved reliability and including relevant testing.
Contract award notice: delivery of an active hydrogen maser
Today the GNSS clock error requirements are comfortably met with the current on-board atomic clock technologies (Rubidium Atomic Frequency Standard (RAFS) and Passive Hydrogen Maser
(PHM)) whose parameters are refreshed every 100min to 1 day.
Contract notice: Delivery of an active hydrogen maser
Contract award: Procurement of active hydrogen Maser
Contract notice: Active Hydrogen Maser
Sg 115813 PW/SG.
Solicitation: Steerable clock system consisting of 75001-109-lpn hydrogen maser
with low phase noise option and 85000-502 aux.
Announcement of competition: Acquisition of Active Hydrogen Maser
Maintenance contract for 6 active hydrogen maser
series EFOS C BKG for 3 years.
Contract award notice: Lieferung eines Active Hydrogen Masers