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After deciding that the remote Woomera site was not ideal for
a deep space tracking station, the search began for an alternative
site. By the 1960s the growth of the National Capital was considered
to be occurring at too slow a pace and pressure was placed on
the Australian Government to remedy the situation. The decision
was made to locate a new tracking station in the Australian Capital
Territory in an effort to promote growth in the region.
The Tidbinbilla valley, 35km
south-west of Canberra, was chosen due to its close proximity
to a growing city, with the surrounding ridges helping to shield
it from unwanted radio interference.
Construction of the complex
began in June 1963 with operations commencing in December 1964,
in time to support the Mariner 4 spacecraft encounter with Mars.
The centrepiece of the complex was the 26-metre antenna (Deep
Space Station 42). Two years later a manned spaceflight wing
was added to the complex to assist with the Apollo missions to
the Moon. By 1970 the complex featured a power station, and facilities
to manage the sewage and water supplies, while a cafeteria, and
sleeping accommodation fed and housed the many workers on site.
During early 1969 construction started on a new antenna. At 73
metres in height and weighing more than seven million kilograms,
the then 64-metre antenna (Deep Space Station 43) took nearly
four years to complete. The need for such an antenna was brought
about by the increasing amounts of data received and the rapidly
expanding distances that spacecraft were travelling. The new
64-metre antenna was more than six times as sensitive as the
existing 26-metre antenna, and therefore could extend the useful
lifetime of a spacecraft as its signal became weaker the further
it was from Earth.
During the 1980s the Voyager
spacecraft travelled billions of kilometres to investigate the
gas giants Jupiter, Saturn, Uranus and Neptune. Over
such distances, the signals from the spacecraft would be extremely
weak and requiring more sophisticated equipment on Earth to receive
them.
Consequently, in 1980 the 26-metre
antenna was upgraded to become a 34-metre antenna, improving
the surface of the dish and adding higher frequency receiving
capabilities. Similarly in 1987, the 64-metre antenna was upgraded
to 70 metres in diameter. Even today, the 70-metre antenna is
the largest steerable parabolic antenna in the Southern Hemisphere.
In 1986 the construction of
a new high efficiency 34-metre antenna (Deep Space Station 45)
was completed to provide better reception at higher frequencies.
The antenna was completed in time for the Voyager 2 encounter
with Uranus, where it was used in conjunction with the 70-metre
antenna to provide even greater sensitivity for the reception
of signals. |
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+ Foreword
+ Overview
+ Birth of the
...Deep Space
Network
+ Function

+ NASA in Australia
+ Woomera
+ Muchea
+ Carnarvon
+ Cooby Creek
+ Honeysuckle Creek
+ Orroral Valley
+ Tidbinbilla

+ Tidbinbilla Part 1 | Part
2

+ Deep Space Station 34
+ Deep Space Station
43
+ Deep Space Station 45
+ Deep Space Station
46
+ Tracking
+ Transmitting
+ Signal Processing
+ Timing Systems
+ Movement
+ Drive Systems

+ Personnel
...+ Operations
...+ Systems Engineering
...+ Antennas & Facilities
...+ Administration
+ CSIRO
+ NASA
+ Raytheon Australia
+ Visitor Centre

+ Terms & Meanings

+ NASA
+ JPL
+ DSN
+ CSIRO
+ Raytheon Australia
+ CDSCC
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