Dr. Emmanuel Morales Butler, University of Puerto Rico at Utuado, Radio Frequency Interference (RFI) mitigation at S-band with Statistical Techniques, The 3.3-GHz transitions of the Methylidyne (CH) molecule are important for understanding the interstellar medium of our galaxy, yet they lie in a frequency range that is particularly polluted by radio transmissions of common devices. The commissioning projects for the upgraded 12-m antenna at the Arecibo Observatory site demonstrated that the S-band environment is no different there than elsewhere– RFI contamination is prominent. In an effort to salvage RFI-affected data from the commissioning studies, we developed an imple- mentation of a statistical method, known as the Generalized Spectral Kurtosis (GSK) Estimator, to confront this issue, maximize the use of our existing data, and preserve the utility of future data. emmanuel.morales13@upr.edu