YD/T 1690.3-2007 电信设备内部电磁发射诊断技术要求和测量方法（150kHz～1GHz） 第3部分：辐射发射测量 外表扫描方法

YD/T 1690.3-2007 Diagnostic technical requirements and measurement methods for electromagnetic emissions from telecommunications equipment (150kHz-1GHz) Part 3: External scan methods for radiated emissions measurements. The surface of the telecommunications equipment is covered in an article and contains information regarding electromagnetic emission standards, equipment standards and certification methods for radiation-free products, with specific emphasis on diagnosis methods, frequency standards and special radiated emissions measurement methods