# Underwater Communications for Video Surveillance Systems at 2.4 GHz
## 4 Results of Maximum Distances
### Measurements for OFDM at Different Temperatures
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline
**Data Transfer** & **2412** & **2417** & **2422** & **2427** & **2432** & **2437** & **2442** & **2447** & **2452** & **2457** & **2462** \\
**Rates** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** \\ \hline
36 Mbps at 18 \({}^{\circ}\)C & 3 & 2 & 0.25 & 0.1 & 0.125 & 2 & 1.5 & 1.25 & 1.5 & - & - \\
36 Mbps at 18 \({}^{\circ}\)C & 2 & 0.5 & 1.75 & 2 & 2.375 & 0.13 & 0.08 & 0.25 & 2.5 & - & - \\
36 Mbps at 20 \({}^{\circ}\)C & 2 & 1 & 1.75 & 2 & 2.125 & 2 & 1.5 & 1.75 & 0.5 & 0.01 & 0.02 \\
36 Mbps at 22 \({}^{\circ}\)C & 3 & 1.5 & 0.25 & 0.12 & 0.125 & 4 & 3 & 3.25 & 4.5 & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 17: Calculation of residuals for OFDM at 36 Mbps. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline
**Data Transfer** & **2412** & **2417** & **2422** & **2427** & **2432** & **2437** & **2442** & **2447** & **2452** & **2457** & **2462** \\
**Rates** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** \\ \hline
12 Mbps at 16 \({}^{\circ}\)C & 2.875 & 2.375 & 1 & 0.5 & 0.75 & 2.375 & 1.5 & 1.375 & 1.5 & - & - \\
12 Mbps at 18 \({}^{\circ}\)C & 2.375 & 0.375 & 1.5 & 2 & 0.25 & 1.125 & 0 & 0.125 & 2.5 & - & - \\
12 Mbps at 20 \({}^{\circ}\)C & 2.125 & 1.125 & 2 & 3.5 & 2.25 & 1.125 & 0 & 0.125 & 2.5 & - & - \\
12 Mbps at 20 \({}^{\circ}\)C & 2.125 & 1.125 & 2 & 3.5 & 2.25 & 2.375 & 1.5 & 1.875 & 0.5 & 0.5 & 0.08 \\
12 Mbps at 22 \({}^{\circ}\)C & 3.125 & 1.625 & 0.5 & 0.5 & 1.75 & 3.625 & 3 & 3.125 & 4.5 & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 13: Calculation of residuals for OFDM at 12 Mbps. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Data Transfer** & **2412** & **2417** & **2422** & **2427** & **2432** & **2437** & **2442** & **2447** & **2452** & **2457** & **2462** \\
**Rates** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** \\ \hline
9 Mbps at 16 \({}^{\circ}\)C & 2.875 & 2.5 & 0.875 & 0.02 & 1.5 & 0.625 & 1.875 & 1.625 & 1 & - & - \\
9 Mbps at 18 \({}^{\circ}\)C & 2.375 & 1 & 1.375 & 2 & 0.5 & 0.375 & 0.125 & 0.125 & 2 & - & - \\
9 Mbps at 20 \({}^{\circ}\)C & 2.125 & 1.5 & 1.625 & 2 & 2.5 & 3.125 & 1.375 & 1.625 & 0.03 & 0.06 & 0.03 \\
9 Mbps at 22 \({}^{\circ}\)C & 3.125 & 2 & 0.625 & 0.03 & 1.5 & 3.375 & 3.125 & 3.375 & 3 & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 12: Calculation of residuals for OFDM at 9 Mbps. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Data Transfer** & **2412** & **2417** & **2422** & **2427** & **2432** & **2437** & **2442** & **2447** & **2452** & **2457** & **2462** \\
**Rates** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** \\ \hline
18 Mbps at 16 \({}^{\circ}\)C & 2.875 & 2.125 & 1 & 0.5 & 0.75 & 2.375 & 1.5 & 1.25 & 1.5 & - & - \\
18 Mbps at 18 \({}^{\circ}\)C & 2.375 & 0.125 & 1.5 & 2 & 0.25 & 1.125 & 0 & 0.25 & 2.5 & - & - \\
18 Mbps at 20 \({}^{\circ}\)C & 2.125 & 1.125 & 2 & 2 & 2.25 & 2.375 & 1.5 & 1.875 & 0.5 & 0.5 & 0.08 \\
12 Mbps at 22 \({}^{\circ}\)C & 3.125 & 1.625 & 0.5 & 0.5 & 1.75 & 3.625 & 3 & 3.125 & 4.5 & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 14: Calculation of residuals for OFDM at 18 Mbps. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline
**Data Transfer** & **2412** & **2417** & **2422** & **2427** & **2432** & **2437** & **2442** & **2447** & **2452** & **2457** & **2462** \\
**Rates** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** & **MHz** \\ \hline
24 Mbps at 16 \({}^{\circ}\)C & 3 & 2 & 1 & 0.09 & 0.5 & 2 & 1.5 & 1.25 & 1.5 & & & \\
24 Mbps at 18 \({}^{\circ}\)C & 2 & 0.5 & 1.5 & 2 & 1.5 & 0.05 & 0.04 & 0.25 & 2.5 & & & \\
24 Mbps at 20 \({}^{\circ}\)C & 2 & 1 & 2 & 2 & 0.5 & 2 & 1.5 & 1.75 & 0.5 & 0.01 & 0.2 \\
24 Mbps at 22 \({}