Systems and methods for identifying interference that warrants dynamic frequency selection (DFS) are provided. In one example, a wireless data radio system includes a radio frequency receiver and thresholding circuitry. The radio frequency receiver may provide a received signal strength indicator. The thresholding circuitry may compare the received signal strength indicator to a threshold value associated with radio interference, determine whether a dynamic frequency selection operation is warranted based at least in part on the comparison, and output a dynamic frequency selection signal indicating whether the dynamic frequency selection operation is warranted.