\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric}
\input{repeater}
\begin{document}
 \begin{tikzpicture}[every node/.style={scale=.8}]
  \activeuser{U1}{0,0}{DM3MAT};
  \activerepeater{R1}{3,1}{DB0SP};
  \repeater{R2}{6,1}{DB0LDS};
  \user{U2}{9,0}{DL2XYZ};
  \path[->] (U1) edge node[above,rotate=17] {$DTMF: 662699$} node[below,rotate=17]{$431.825 MHz$} (R1) ;
 \end{tikzpicture}
\end{document}
