diff --git a/dd.tex b/dd.tex
index 939570e..f86c4cd 100644
--- a/dd.tex
+++ b/dd.tex
@@ -210,7 +210,7 @@ The LoRa gateway will consist of the following libraries, frameworks, and subsys
     \item \emph{Raspberry Pi:} The LoRa gateway's primary subcomponent will be
         the Raspberry Pi, a single-board Linux computer. The Raspberry Pi
         is capable of interfacing with hardware components such as the LoRaWAN
-        shield. It also supports the execution of arbitrary programs, such
+        concentrator. It also supports the execution of arbitrary programs, such
         as the API server and database management software.
     \item \emph{LoRa Interface:} The LoRa interface will be used as part of the
         LoRa gateway to allow communication between the gateway and the collars
@@ -244,7 +244,7 @@ livestock. Conceptually, it made up of the driver and the system logic.
         the interaction of the various components of the collar. As described
         in the structure viewpoint, the collar will be made of several
         physical devices, such as an AVR Atmega128 microcontroller, a
-        LoRa shield, and hardware for emitting sound. The driver
+        LoRa shield, and hardware for emitting sound. The driver        % TODO matt explain new setup
         component is the low-level software (likely written in AVR
         assembly) for interfacing with these components.
     \item \emph{System Logic:} Implemented using C, this code will