"Preferences" panel
=====================

The **User Preferences** panel permits to **change the default settings** of the application,
allowing the user to preset the most frequently used design parameters.
The parameters are grouped in six sections: General, Georeferencing, Survey area, Transceivers, 
Transmissions and Field parameters.

.. figure:: preferences.png
	:scale: 100%
	:alt: Preferences panel.
	:align: center
   
	Preferences panel.

Changes made by the user can be made permanent through the **Save** command
and will be **active at software restart**. To restore the *factory parameters* 
select the **Reset** command. User preferences are saved inside a text file
(*ertdesign_ms_config.ini*) in the *preferences* folder of the software installation directory.

General
--------

.. figure:: pref_general.png
	:scale: 100%
	:alt: General Preferences.
	:align: center
   
	General Preferences.

Use this section to set the **language** option for the user interface, choosing between English and Italian.

.. _preferences_georef:

Georeferencing
---------------

.. figure:: pref_geo.png
	:scale: 100%
	:alt: Georeferencing preferences.
	:align: center
   
	Georeferencing preferences.

The section allows to preset the **ellipsoid** for the conversion of the geographic coordinates (Latitude and
Longitude) to the **UTM** projection plane. You can choose from 23 different ellipsoids.
The *default* uses WGS84.

Survey area
------------

.. figure:: pref_area.png
	:scale: 100%
	:alt: Survey area preferences.
	:align: center
   
	Survey area preferences.

Find in this section the defaults on the geometry of the survey area, to be generated as an 
alternative to the import from KMZ/KML files. The parameters present are the same as described 
in the section related to :doc:`"Define survey area" <define>` panel of this manual.

Transceivers
-------------

.. figure:: pref_TRX.png
	:scale: 100%
	:alt: Transceivers preferences.
	:align: center
   
	Transceivers preferences.

My BOX names/IDs
^^^^^^^^^^^^^^^^^
	This parameter allows to store a **list of strings with the parameters identifying the 
	multisource boxes** for the field operations. 
	**This option is fundamental to save the configuration file for the Multisource 
	software that remotly controls the acquisition.**
	Each line in the list identifies a box and consists of 3 elements:

	* Number of the box unit.
	
	* Serial of the box unt.
	
	* Id of the the box unit.
	
	E.g.: 1 0013A27840A29250 Unit_ERTdesign
	
	The list of box names/IDs can be manually edited or imported from
	a configuration or .wdat file through the command **Load from cnfg file**.

Nr. of boxes in the two directions
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	The parameters present here are the same as described in :ref:`TRX_section` of :doc:`Survey design <design>` panel.	
	
Local coordinates for electrodes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	The parameters present here are the same as described in :ref:`TRX_section` of :doc:`Survey design <design>` panel.

Advanced settings
^^^^^^^^^^^^^^^^^^^^^
	The parameters present here are the same described in the section related to :ref:`advanced_TRX`
	of :doc:`Advanced Settings <advanced>` panel.

Transmissions
--------------

.. figure:: pref_TX.png
	:scale: 100%
	:alt: Transmitters preferences.
	:align: center
   
	Transmitters preferences.
   
The parameters present here are the same described in the :doc:`Survey Design <design>` panel 
and in the section related to :ref:`advanced_TX` of :doc:`Advanced Settings <advanced>`.

 
.. _preferences_field:

Field parameters
-----------------

.. figure:: pref_field.png
	:scale: 100%
	:alt: Field parameters preferences.
	:align: center
   
	Field parameters preferences.

The parameters here store presets related to the fieldwork scenario:

	* **Background Rho**: this is the value (in Ohm m) of the site background resistivity.

	* **Injected current**: this is the value (in mA) the user supposes will be able to inject 
	  into the ground at the transmitting dipoles.

The parameters **Alert on Vmn MIN and MAX** allow to preset the alarm thresholds (in mV)
to alert the user in case of too low potentials or in case of risk of *overload* at
receivers.