.. _intro_proc_sites.defaults:

:file:`sites.defaults`
----------------------

The :file:`sites.defaults` file determines how each station will be used in the processing.
Since all sites in your :file:`rinex/` directory will be automatically included in your processing, in most cases you need to list here only those sites for which you want to automatically download data from a remote archive (:content:`ftprnx` token).
This assumes that you do not want to include or exclude individual sites from automatic updating in :file:`station.info` (:content:`xstinfo` token) or to exclude from processing sites for which you have RINEX files in the :file:`rinex/` directory (:content:`xsite` token).
Note that you must include after each site name the 4-character "experiment" name you use in your processing (shown in the :doc:`example <../example>` as :content:`scal`).
This requirement derives from the feature to allow :file:`sites.defaults` to select sites to be used in each of several sub-networks when you are processing multiple sub-networks.

.. literalinclude:: sites.defaults
   :language: text

The :option:`-xsite` option can also be used on the :program:`sh_gamit` command line.