unshielded

The paper analyze the radiated disturbance problem in electromagnetic radiated testing about unshielded enclosure terminal product A and B, and give the specified solution plan to reduce the high-frequency radiated disturbance through using spread-spectrum technique and this experiment result prove that the plan is practicable.

文章针对非屏蔽塑料外壳设计的终端产品A、产品B在辐射发射测试中存在的问题，提出了采用扩频技术来抑制高频辐射骚扰的解决方案，并用实验结果证明了此方案是可行的。

Cables with twisted pairs are available shielded or unshielded.

采用双绞线的电缆有屏蔽的,也有非屏蔽的.

Two types of twisted-pair cable are shielded twisted-pair ( STP) and unshielded twisted pair ( UTP).

双绞线缆线的二类型是遮蔽双绞线（STP）和无遮蔽双绞线（UTP）。

The paper analyze the radiated disturbance problem in electromagnetic radiated testing of unshielded enclosure terminal product T500 and give the specified solution for the problem.

分析了非屏蔽外壳设计的某终端产品T500在辐射发射测试中存在的问题，并提出了具体的解决方案。