[asac] [almanews] ALMA Memo 483 Released

[Stacy Oliver]

ALMA Memo # 483


The ALMA 1st Local Oscillator Reference 

Bill Shillue, Sarmad AlBanna, and Larry D'Addario
National Radio Astronomy Observatory 

2004-09-29


The ALMA 1st LO Reference system consists of a laser synthesizer, active
line length correction, photonic distribution, and a photonic receiver. The
phase stability and phase drift specifications are very ambitious, and the
effort to meet them has led to small evolutions and improvements in the
design. This memo gives a general description of the system, and documents
its current measured performance levels, as measured in the laboratory. 

View a pdf version of ALMA Memo #483. 

http://www.alma.nrao.edu/memos/html-memos/alma483/memo483.pdf

 

 

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