The radio spectrum of Sgr A*

We discuss the radio spectrum of Sgr A* index{Sgr A*, radio spectrum} in the frequency range between $approx 1,{rm GHz}$ and $approx 1,000,{rm GHz}$, show that it can be explained by optically thin synchrotron radiation index{Sgr A*, synchrotron radiation, optically thin} of relativistic electrons, and point toward a possible correlation between the spectrum of Sgr A* and larger-scale ($la 50,{rm pc}$) radio emission from the Galactic Center index{Galactic Center} region.