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diff --git a/ex03/kn03.tex b/ex03/kn03.tex
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@@ -147,5 +147,118 @@
         \item $2^1=2$, es kann also jedes Signal ein bit übertragen, da $L=2$.
         \item Nach Nyquist ist die maximale Bitrate also $2\cdot B=8Mbit/s$
     \end{enumerate}
+\Aufgabe{Shannon Kapazität}{15}
+\begin{align*}
+    N= & B\cdot \log_2\left(1+SNR\right) &\approx &  B\cdot \frac{10}{3}\log_{10} SNR\\
+    \Leftrightarrow & 3\log_2\left(1+SNR\right) &\approx &  10\log_{10} SNR\\
+    \Leftrightarrow & \underbrace{\frac{3\ln 10}{10\ln 2}}_{\approx 1} \underbrace{\ln\left(1+SNR\right)}_{\approx \ln SNR} &\approx &\ln SNR
+\end{align*} \qed\pagebreak\\
+\Aufgabe{Line Codes}{5+15+5+10}
+    \begin{enumerate}
+        \item unipolar NRZ: Signal: 101100101000\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=0.7cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,1) (1,0) (2,1) (3,1) (4,0) (5,0) (6,1) (7,0) (8,1) (9,0) (10,0) (11,0) (12,0)};
+                \end{axis}
+            \end{tikzpicture}
+        \item \begin{itemize}
+            \item NRZ-I: Signal: 001000110000\\
+                \begin{tikzpicture}
+                    \begin{axis}[
+                        axis lines = middle,
+                        enlargelimits,
+                        clip=false,
+                        xlabel=t,
+                        ylabel=V,
+                        x=1cm,
+                        y=0.7cm,
+                        ]
+                        \addplot[thick,mark=none,const plot,red] coordinates { (0,0) (1,0) (2,1) (3,0) (4,0) (5,0) (6,1) (7,1) (8,0) (9,0) (10,0) (11,0) (12,0)};
+                    \end{axis}
+            \end{tikzpicture}
+            \item Polar RZ: Signal: 1-111-1-11-11-1-1-1\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=1cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,1) (0.5,1) (0.5,0) (1,0) (1,-1) (1.5,-1) (1.5,0) (2,0) (2,1) (2.5,1) (2.5,0) (3,0) (3,1) (3.5,1) (3.5,0) (4,0) (4,-1) (4.5,-1) (4.5,0) (5,0) (5,-1) (5.5,-1) (5.5,0) (6,0) (6,1) (6.5,1) (6.5,0) (7,0) (7,-1) (7.5,-1) (7.5,0) (8,0) (8,1) (8.5,1) (8.5,0) (9,0) (9,-1) (9.5,-1) (9.5,0) (10,0) (10,-1) (10.5,-1) (10.5,0) (11,0) (11,-1) (11.5,-1) (11.5,0) (12,0)
+                    };
+                \end{axis}
+            \end{tikzpicture}
+            \item Manchester: Signal: uduuddududdd (u=up, d=down)\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=.7cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,-1) (0.5,-1) (0.5,1) (1.5,1) (1.5,-1) (2.5,-1) (2.5,1) (3,1) (3,-1) (3.5,-1) (3.5,1) (4.5,1) (4.5,-1) (5,-1) (5,1) (5.5,1) (5.5,-1) (6.5,-1) (6.5,1) (7.5,1) (7.5,-1) (8.5,-1) (8.5,1) (9.5,1) (9.5,-1) (10,-1) (10,1) (10.5,1) (10.5,-1) (11,-1) (11,1) (11.5,1) (11.5,-1) (12,-1)
+                    };
+                \end{axis}
+            \end{tikzpicture}
+        \end{itemize}
+        \item AMI: Signal: 10-1100-101000\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=.7cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,1) (1,0) (2,-1) (3,1) (4,0) (5,0) (6,-1) (7,0) (8,1) (9,0) (10,0) (11,0) (12,0)};
+                \end{axis}
+            \end{tikzpicture}
+        \item \begin{itemize}
+            \item PAM-5: Signal: 12-211-2\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=0.7cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,1) (2,2) (4,-2) (6,1) (8,1) (10,-2) (12,-2)};
+                \end{axis}
+            \end{tikzpicture}
+            \item MLT-3: 110-1-1-1001111\\
+            \begin{tikzpicture}
+                \begin{axis}[
+                    axis lines = middle,
+                    enlargelimits,
+                    clip=false,
+                    xlabel=t,
+                    ylabel=V,
+                    x=1cm,
+                    y=1cm,
+                    ]
+                    \addplot[thick,mark=none,const plot,red] coordinates { (0,1) (2,0) (3,-1) (6,0) (8,1) (12,1)};
+                \end{axis}
+            \end{tikzpicture}
+        \end{itemize}
+    \end{enumerate}
 \end{document}