RFI Mitigation of FAST: Challenge & Solution

The Five-hundred-meter Aperture Spherical radio Telescope is now in the commissioning stage. Due to its extreme sensitivity, it is a great challenge for FAST to mitigate the Radio Frequency Interference (RFI) not only from the telescope itself, but also from the transmitter outside the site. The solutions for RFI mitigation of FAST include the Electromagnetic Compatibility measures of the telescope and the maintenance of radio quiet zones around the site. The new pulsars detected by FAST have indicated the effectiveness of the solutions of RFI mitigation.