diff --git a/requirements.latex b/requirements.latex
index 64b27a2..c4697d4 100644
--- a/requirements.latex
+++ b/requirements.latex
@@ -1,4 +1,8 @@
 \documentclass[10pt, draftclsnofoot,onecolumn]{IEEEtran}
+
+\def\changemargin#1#2{\list{}{\rightmargin#2\leftmargin#1}\item[]}
+\let\endchangemargin=\endlist
+
 \usepackage{todonotes}
 \usepackage{caption}
 \usepackage{pgfgantt}
@@ -94,8 +98,9 @@ of the animals, and read the data collected by the collars.
 \subsubsection{User characteristics}
 ?? \todo{Finish this}
 \subsection{Definitions}
-?? \todo{Finish this}
+LoRa, LoRaWAN, LoRa Gateway, LoRa End-node, anything else? \todo{Finish this}
 \section{References}
+?? \todo{Do we need this?}
 \section{System requirements}
 \subsection{Functional requirements}
 \subsubsection{GPS}
@@ -135,7 +140,16 @@ to adjust the boundaries of the prescribed region and visualize
 the locations of individual animals on a map.
 
 \subsubsection{Data Collection}
-@ryan you know more about this than I care to research. \todo{finish this}
+All of the collars must remain in constant communication with the LoRa 
+gateway, and subsequently the server. There must be an SQL database holding
+the most up to date information about each animal, including location,
+name, type, id (primary key), and any other applicable information 
+necessary for operation of the Android application. Data will be collected
+from each collar at an interval to minimize collision but maximize
+data throughput, and will be based on the number of LoRa end-nodes 
+(collars) and the number of LoRa gateways. In this application, there is 
+little need to communicate at a rapid rate, and the collars will interact
+with the gateway most likely at a rate of once every few minutes.
 
 \subsubsection{Effective Area}
 Because many farms have significant numbers of livestock, and consequently
@@ -189,9 +203,14 @@ requirement applies to the collars themselves and the Android application:
 
 \subsection{System interface}
 \subsubsection{LoRa}
-@ryan \todo{write this}
+The main communication protocol that will be used for this project 
+is LoRa and LoRaWAN. Each collar will be fitted with a proprietary
+LoRa chip, and LoRa gateway(s) will be configured based on the desired
+number of operational collars. LoRaWAN will be configured and implemented
+for communication with the end nodes and the server.
 
 \subsection{System operations}
+\todo{this?}
 \subsection{System modes and states}
 Besides the "standard" operational mode for the collar, it
 is useful to envision other modes that help in troubleshooting
@@ -232,7 +251,11 @@ Science, and therefore, will be tested in Oregon's climate. Since rain is very c
 during the winter months in Western Oregon, the device must be readily able to withstand
 such conditions, without sustaining any damage.
 
-\todo{Anything else?}
+\subsubsection{Temperature}
+As this project will be designed and tested in Oregon, the vast differences in temperature
+throughout the year must be considered. The collars must be able to constantly operate in
+temperatures below freezing during the winter, and temperatures in excess of 100 degrees
+fahrenheit during the summer.
 
 \subsection{System security}
 \todo{Do we need this?}
@@ -248,12 +271,12 @@ such conditions, without sustaining any damage.
 \todo{Someone else please}
 
 \section{Gantt Chart}
+\begin{changemargin}{-2cm}{0cm}
 \begin{ganttchart}[
-	x unit=.55mm,
+	x unit=.65mm,
 	time slot format=isodate
 ]{2019-10-01}{2020-06-30}
 \gantttitlecalendar{year, month=name} \\
-
 \ganttgroup{Collar}{2019-10-01}{2020-03-01} \\
 \ganttbar{Design}{2019-10-20}{2020-01-01} \\
 \ganttmilestone{Purchase Parts}{2020-01-03} \\
@@ -277,4 +300,5 @@ such conditions, without sustaining any damage.
 \ganttlink{elem10}{elem11}
 \ganttlink{elem11}{elem12}
 \end{ganttchart}
+\end{changemargin}
 \end{document}