small edits

Author: cjsha

source/Hardware Guide/Lighthouses/setup.rst

@@ -3,45 +3,52 @@
 Setup
 #########################
 
-1. Mount 2 Vive Base Station Lighthouse over the setup.
-
-   .. image:: ../../_static/images/lighthouses/vive_front.jpg
-     :width: 48 %
-   .. image:: ../../_static/images/lighthouses/vive_front.jpg
-     :width: 48 %
-
-   Follow these guidelines to decide where to mount your two Lighthouse base stations:
-
-   - They should be centered above and facing the area that will be occupied by the lighthouse receivers.
-   - The lighthouses should have the same orientation.
-   - The distance between the receiver and the transmitters should not exceed the maximum range. This depends 
-     on the sensitivity of the receiver's photodiode on the headstage and is best determined experimentally. Each 
-     base station has a 120° field of view. However, the photodiode has a larger chance of being obstructed from 
-     the transmitter by parts on the headstage at larger angles.
-   - Position measurements are noisier when receivers are at the boundary of the transmitters' range, so leave a 
-     safe margin. 
-   - A receiver must be in range of _both_ transmitters in order to measure position. 
-   - Secure the base stations such that they can't be easily jostled or moved.
+1.  Mount 2 Vive Base Station Lighthouse over the behavioral arena.
+
+    .. image:: ../../_static/images/lighthouses/vive_front.jpg
+      :width: 48 %
+    .. image:: ../../_static/images/lighthouses/vive_front.jpg
+      :width: 48 %
+ 
+    Follow these guidelines when deciding where to mount your Lighthouse base stations:
+ 
+    .. On the headstage64, the photodiodes allow can accommodate up to at least distance 3m between the lighthouse receivers and transmitters. THIS REQUIRES CONFIRMATION TO INCLUDE IN DOCS, OTHERWISE DELETE.
+
+    - They should be centered above and facing the area the behavioral arena
+    - The lighthouses should have the same orientation.
+    - The distance between the receiver and the transmitters should not exceed
+      the maximum range. This depends on the sensitivity of the receiver's
+      photodiode on the headstage and is best determined experimentally. Each
+      base station has a 120° field of view. However, the lighthouse receivers
+      have a higher chance loosing line of sight of the transmitters at these
+      larger angles if the headstage tilts. 
+    - Position measurements are noisier when receivers are at the boundary of the
+      transmitters' range, so leave a safe margin. 
+    - A receiver must be in range of *both* transmitters in order to measure
+      position. 
+    - Secure the base stations such that they can't be easily jostled or moved.
+
+    The image below shows a cartoon of what a lighthouse & commutator commutator
+    might look mounted on extruded aluminum rail. The overlapping green area
+    represents the region where a TS4231 device is in range of both base
+    stations and can measure position.
+
+    .. image:: ../../_static/images/lighthouses/lighthouse_active-range.svg
+
 
-   .. tip::
+    .. tip::
       To confirm if the base station configuration covers the entire desired range, slowly move 
-      the TS4231 device through the entire desired range while running 
+      the TS4231 device through the entire arena while running 
       `an example workflow <https://open-ephys.github.io/bonsai-onix1-docs/articles/hardware/hs64/workflow.html>`_ and
       `inspecting the TS4231V1PositionData position data visualizer <https://open-ephys.github.io/bonsai-onix1-docs/articles/getting-started/visualize-data.html>`_. 
       If the TS4231V1PositionData operator ceases to produce data (i.e. if the visualizer stops updating) 
       at a certain spot, the current base station configuration does not cover that spot. If you are unfamiliar with 
       using Bonsai to acquire Onix data to do this, visit the OpenEphys.Onix1 Bonsai package 
       `Getting Started page <https://open-ephys.github.io/bonsai-onix1-docs/articles/getting-started/index.html>`_.
 
-   The image below shows a cartoon of what a lighthouse setup might look with a commutator as well mounted
-   on extruded aluminum rail. The overlapping green area represents the region where a TS4231 device is in 
-   range of both base stations and can measure position.
-
-   .. image:: ../../_static/images/lighthouses/lighthouse_active-range.svg
-
-   The image below shows an photo of how the actual mounting hardware looks for mounting on extruded aluminum rail. 
+    The image below shows an photo of how the actual hardware could look for mounting on extruded aluminum rail. 
 
-   .. image:: ../../_static/images/lighthouses/lighthouse-mount-example.png
+    .. image:: ../../_static/images/lighthouses/lighthouse-mount-example.png
 
 2. Connect one power adaptor to each base station.