Introduction
Antenna
Data Acquisition
Correlator
C-Rack
D-Rack
Mark 5 Disk Recorder
Tape Recorders
Maser
Station Computer
Communications
VLBA Array Operators
Data Acquisition signal path:
Maser
Hydrogen Maser provides secure and accurate timing.
Data Acquisition signal path:
Maser


The maser provides the timing for the equipment on the signal path, the station computer, and for the formatter to write to the media.

The accuracy of the maser is 10-14sec/sec. The absolute time from the maser is locked to the GPS clock, which is necessary to maintain short-term coherence between stations.