\begin{circuitikz}
    \ctikzset{
        blocks/scale=\getDarcImageFactor,
        RF/scale=\getDarcImageFactor,
        misc/scale=\getDarcImageFactor
    }
    \draw(0,0)
        node[camerashape, rotate=90] (cam){};
    \draw(cam.south)
        to [adc, >] ++(2,0)
        node [inputarrow](){}
        node [twoportshape, t={\large ?}, anchor=west](question){};
    \draw(question.right up)    
        to [short] ++(0.5,0)
        |- ++(0.5,1) node[inputarrow](){}
        node[dacshape, anchor=west](dac1){};
    \draw(question.right down)    
        to [short] ++(0.5,0)
        |- ++(0.5,-1) node[inputarrow](){}
        node[dacshape, anchor=west](dac2){};
    \draw(dac1.east) ++(1,0) coordinate(h1) (h1|-question.west)
        node[mixer, box, anchor=west](mix){};
    \draw(dac1.east)    
        to [short] ++(0.5,0)
        |- (mix.left up) node[inputarrow](){};
    \draw(dac2.east)    
        to [short] ++(0.5,0)
        |- (mix.left down) node[inputarrow](){};
    \draw(mix.east)
        to [amp, box] ++(2,0)
        node[bandpassshape, anchor=west](bp1){};
    \draw(bp1.east)
        to [short] ++(0.5,0)
        node[antenna](){};
    \draw(mix.south)
        node [inputarrow, rotate=90](){}
        to [short] ++(0,-1)
        node[qgeneratorshape, t={G}, anchor=north](){};
    \draw(mix.north)
        node[anchor=south](){IQ};
\end{circuitikz}