diff -r f51ca1e515ac -r 5ffb18491f41 docs/tutorial/adding_channels.rst
--- a/docs/tutorial/adding_channels.rst	Fri May 11 14:14:42 2012 +0200
+++ b/docs/tutorial/adding_channels.rst	Fri May 11 14:20:47 2012 +0200
@@ -3,14 +3,14 @@
 
 After adding a system, a telescope and a laser to the database, you need to add a new channel. 
 To do this, click on the **HOI channels** in the *System settings* panel.
-This will take you to a page with a list of all availabe channels that are connected with your lidar systems. 
+This will take you to a page with a list of all available channels that are connected with your lidar systems. 
 This list should be empty if this is the first time you add a system. 
 
 To add a new channel to the database click on **Add HOI channel** at the top right of the screen.
 This will take you to a new page were you can fill in the needed information. As before, the fields in **bold**
 are mandatory and you will need to fill them before you can save you new system. 
 
-The fileds you have to fill here are more, as many of these are used during the processing of measurements.
+The fields you have to fill here are more, as many of these are used during the processing of measurements.
 
 .. warning::
 
@@ -43,7 +43,7 @@
    The emission wavelength of the laser used for this channel
    
 Field of view
-   The field of view realated to this channel in mrad
+   The field of view related to this channel in mrad
 
 Raw range resolution
    The raw range resolution of the measured data in m
@@ -62,11 +62,11 @@
    The dead time correction type to be applied. Select *Not defined* if none needs to be defined.
 
 Background mode
-   The way to calculate the singal background. Select *Not defined* if none needs to be defined.
+   The way to calculate the signal background. Select *Not defined* if none needs to be defined.
 
 Signal type
-   The type of the singal that is measured, ex. "elT" for total elastic, "vrRN2" for vibrational-rotational
-   Raman signal from Nitrogen melecules etc. See :ref:`signal-types` for details.
+   The type of the signal that is measured, ex. "elT" for total elastic, "vrRN2" for vibrational-rotational
+   Raman signal from Nitrogen molecules etc. See :ref:`signal-types` for details.
    
 Detection mode
    The detection mode of this channel.