MASER Unit Synthetic Ruby for Goldstone Antenna

Once the signal is captured by the antenna it is fed into a maser like this one. A maser, or microwave laser, is used in radio telescopes as an extremely low-noise amplifier.
Read More http://www.wired.com/science/space/multimedia/2008/05/gallery_jpl_goldstone?slide=6&slideView=4#ixzz13QcUuAXG
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