Ooh! Ooh! Not only a 5245 with a 5265 voltmeter plug-in but a 5360
Computing Pig! Great picture, thanks for posting it.
Jeremy
N6WFO
On 1/30/2016 6:16 AM, jimlux wrote:
This month's historical picture from JPL
http://beacon.jpl.nasa.gov/historical-photo-of-the-month
This atomic clock was used at the Goldstone Time Standards Laboratory
in 1970, to synchronize clocks at Deep Space Network stations around
the world. This master clock was accurate to plus or minus two
millionths of a second, when compared to clocks maintained by the
National Bureau of Standards and the U.S. Naval Observatory. In the
late 1960s, JPL had developed a moon bounce technique to transmit
signals from one deep space antenna to another. Experiments included
periodic measurement of timing signals that were reflected from the
surface of the moon, to find out if the station clocks were within
allowable limits for accuracy.
Time-nut will recognize, of course, that none of the things in that
picture are actually an atomic clock, although they are thing that are
useful if you have an atomic clock.
Note the sophisticated temperature monitoring system.
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