% Author: Prof. Dr. Matthias Jung, DL9MJ
% Year: 2024
\begin{circuitikz}
    \ctikzset{
        blocks/scale=\getDarcImageFactor,
        RF/scale=\getDarcImageFactor
    }
    \draw(0,0) 
        to [amp, box, name={amp1}, o-, >] ++(2,0)
        node [inputarrow](){}
        node[mixer, box, anchor=west](mix1){};

    \draw(mix1.east)
        to [bandpass, >] ++(2,0)
        node [inputarrow](){}
        node[mixer, box, anchor=west](mix2){};

    \draw(mix2.east)
        to [bandpass, >] ++(2,0)
        node [inputarrow](){}
        node[ampshape, box, anchor=west](amp2){};

    \draw(amp2.east)
        to [amp, box, name={amp3}, >] ++(2,0)
        node [inputarrow](){}
        node[lowpassshape, box, anchor=west](lp1){};

    \draw(lp1.east)
        to [short] ++(0.5,0)
        node[antenna](ant){};

    \draw(mix1.south)
        node[inputarrow, rotate=90](){}
        to [short] ++(0,-1)
        node[qgeneratorshape, t={G}, anchor=north](gen1){};

    \draw(mix2.south)
        node[inputarrow, rotate=90](){}
        to [short] ++(0,-1)
        node[vallpassshape, t={G}, anchor=north](gen2){};

    \draw(amp3.south)
        to [short] ++(0,-1)
        node[inputarrow, rotate=-90](){}
        node[twoportshape, t={\footnotesize ALC}, anchor=north, fill=DARCblue!50](alc){};

    \draw(alc.west)
        -| (amp2.south)
        node[inputarrow, rotate=90](){};

    % Labels:
    \draw(amp1.south) node[anchor=north](){NF};
    \draw(gen1.east)  node[anchor=west](){CO};
    \draw(gen2.east)  node[anchor=west](){VFO};
    \draw(amp3.north) node[anchor=south](){\footnotesize PA};
    \draw(amp2.north) node[anchor=south](){\footnotesize Treiber};
    \draw(mix2.north) node[anchor=south](){\footnotesize Mischer};
    \draw(mix1.north) node[anchor=south](h1){\footnotesize modulator};
    \draw(h1.north)   node[anchor=south](){\footnotesize Balance-};
\end{circuitikz}