Most of packet length justification done. Still need to sort out if the chip limitation is real

header.tex

@@ -19,5 +19,13 @@ Before transmission, a header must be affixed to the packet. This is used so tha
   10 & $L$ & LDPC-encoded data \\
   \hline
 \end{tabular}
-
-Note that $L \le 8191$.
+\\\\
+Note that even though the data length field is a two-byte value, $L$ has a maximum value of $8191$. There are several motivating factors for this limitation.
+\begin{enumerate}
+  \item CATS traffic shouldn't congest the channel for too long. The transfer is done at 9600bps, which means that ignoring the header, the transmission time for a max-size packet will take
+  \begin{equation}
+  \frac{\mathrm{second}}{9600~\mathrm{bits}} \cdot \frac{8~\mathrm{bits}}{\mathrm{bytes}} \cdot 8191~\mathrm{bytes} \approx 6.8~\mathrm{seconds}
+  \end{equation}
+  \item Transmitters contemporary with the creation of this standard, such as the si4463, have a maximum payload length (packet excluding preamble, sync, and length field) of 8191 bytes. SOURCE XXXXXXXXXXXXXX
+  \item Microcontrollers do not have much RAM. By choosing a maximum size of 8191, we ensure that many low-cost microcontrollers can fully buffer any and all CATS packets, while keeping the header overhead reasonably low.
+\end{enumerate}