HTS 8543.20 – Signal Generators & Function Generators

HTS 8543.20 covers signal generators and function generators used for electronic test and measurement. The MFN rate is free. German (Rohde & Schwarz, Siemens), Japanese (Anritsu, Yokogawa), and UK (Oxford Instruments) signal generators face 15%. Chinese brands (Rigol, SIGLENT, Owon) face 40%, creating a significant cost disadvantage versus European/Japanese T&M equipment. For professional test labs, European-origin instruments are often only marginally more expensive after the tariff differential is factored in.