QUESTION: 
What setup is used to received telemetry from the Galileo?

ANSWER from Stephen Noland on January 3, 1996:
Galileo telemetry is sent back to Earth via a specially designed radio
signal that operates in the "S-band".  This radio signal operates at a very
slow data rate due to the immense distance that it must travel (it takes
about an hour at the speed of light to get to Earth from the Galileo
orbiter).  Currently the data is reaching earth at about 10 - 40 bits per
second.  Compare this to your computer modem, which today can receive
between 14.4 to 28.8 thousand bits per second.
 
The radio signals from Galileo are received by giant radio antennas that
are located in three places around the Earth - Goldstone, California (near
Barstow), Canberra, Australia, and Madrid, Spain.  The antennas that listen
to Galileo are very big - the biggest is 70 meters in diameter, almost a
large as a football field.
 
After the radio signals are received on earth, they are converted to
computerized data consisting of bits, just like in your desktop computer.
A great deal of care is taken to make sure that we have all of the data and
that we have received it correctly.  When they are as good as they can be,
the data are sent via satellite to JPL, where we process it with our
computers.
 
The telemetry data contains information from many different parts of
Galileo.  We receive information about the health of the spacecraft, what
the temperature is at many different places, and data from each of the
scientific instruments that are on board.  All of this information is
separated into like kinds of data and sent to the correct scientists and
engineer for analysis.  For example, the picture data is sent to a special
laboratory where we reassemble the data into an image that you can see,
store it on our large computer disks, and make pictures on film that we can
give to news media and the public like you.