% Author: Prof. Dr. Matthias Jung
% Year: 2023
\begin{tikzpicture}
    \ctikzset{
        blocks/scale=\getDarcImageFactor,
        RF/scale=\getDarcImageFactor
    }
    \draw(0,0)
        node[antenna](){}
        to [twoport, t={1}, >] ++(3,0)
        node [inputarrow](){}
        node[twoportshape, t={3}, anchor=west](drei){};
    \draw(drei.east)
        to [short] ++(1,0)
        node [inputarrow](ende){};
    \draw(ende.east)
        node [anchor=west, align=left] {Weitere\\Teile\\des\\Empfängers};
    \draw(drei.north)
        node [inputarrow, rotate=-90](){}
        to [short] ++(0,2)
        node[twoportshape, t={2}, anchor=south](zwei){};
    \draw(zwei.west)
        node [inputarrow](){}
        to [short] ++(-1,0)
        node [anchor=east, align=right] {Kontroll-\\information};
\end{tikzpicture}