ASTRI recently received a letter of thanks from Taiwan’s National Communications Commission (NCC) for helping solve the problem of 5G communications interference. The 3.5 GHz spectrum band, also known as the C-Band, is a core spectrum band for 5G deployment. Many national regulators globally have either assigned the C-Band for 5G or have planned to do so. Conventionally, the C-Band is used in the Asia Pacific region for satellite services and the allocation of C-Band for 5G may adversely interfere with existing satellite services. In 2017, the Hong Kong Office of the Communications Authority (OFCA) appointed ASTRI and Rohde & Schwarz (R&S) as consultants to conduct a technical study and to find a solution to the interference problem. Subsequently, ASTRI designed an anti-interference satellite TV receiver that would be adopted throughout Hong Kong. Facing similar interference problems, NCC approached ASTRI and R&S for technical advice and solutions. Once again, ASTRI’s expertise in 5G saved the day!