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

The **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, Receivers, 
Transmitters 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_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.

Receivers
----------

.. figure:: pref_RX.png
	:scale: 100%
	:alt: Receivers preferences.
	:align: center
   
	Receivers preferences.

RX names/IDs
^^^^^^^^^^^^
	This parameter allows to store a list of strings with the **names to be assigned to the RX boxes**. 
	With no specifications, the application makes use of progressive numbering RX1, RX2, ..., RXn 
	to identify the receivers. It can be useful, in order to facilitate field operations, to name receivers using
	the serial numbers labelled on the V-FullWaver boxes.

Local coordinates for RX electrodes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	The parameters present here are the same as described in :ref:`RX_section` of :doc:`Survey design <design>` panel.

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

Transmitters
-------------

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

 
.. _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.