On the morning of 28th March, Marco Mozzi from AFJ instruments shared “Introduction of EMI receiver’s test technology”, along with showing the operation of related products, which impress engineers deeply. In the afternoon, Junqi Zhen, Secretary General of the national radio interference technical committee and Deputy Directory of Shanghai Electrical Apparatus Research Institute, presented “How to improve the EMC immunity of electronic products from interference”. Interactive discussion between speakers and engineers went through the seminar and it sustained four hours.