% 2026 Prof. Dr. Matthias Jung DL9MJ
\begin{tikzpicture}
    %
    \draw (0,0) coordinate(start)
    to[amp, boxed, >, o-, name={amp1}] ++(2,0)
    to[piattenuator, boxed, >    , name={amp2}] ++(2,0)
    to[amp, boxed, >, -o, name={amp3}] ++(2,0) coordinate(end);
    %
    \draw[DARCblue](amp1.north) node[anchor=south](){$\cdot 10$};
    \draw[DARCblue](amp2.north) node[anchor=south](){$: 100$};
    \draw[DARCblue](amp3.north) node[anchor=south](){$\cdot 10$};
    %
    \draw[DARCred](amp1.south) node[anchor=north](){$+\qty{10}{dB}$};
    \draw[DARCred](amp2.south) node[anchor=north](){$-\qty{20}{dB}$};
    \draw[DARCred](amp3.south) node[anchor=north](){$+\qty{10}{dB}$};
    %
    \draw[DARCblue](start) node[anchor=south](){$\qty{1}{\milli\watt}$};
    \draw[DARCred](start) node[anchor=north](){$\qty{0}{dBm}$};
    %
    \draw[DARCblue](end) node[anchor=south](){$\qty{1}{\milli\watt}$};
    \draw[DARCred](end) node[anchor=north](){$\qty{0}{dBm}$};
    %
\end{tikzpicture}