white space是行业术语，指的是毗连电视频段的未使用的波段，它还可以为收到的杂散信号和其他干扰提供缓冲。
White space is industry lingo for the unused airwaves that abut TV spectrum and provide a buffer from stray signals and other interference.
FCC的决定受到多家电视台的反对(PDF版的请愿书)，他们担心空闲频道的使用可能会干扰电视信号以及使用了相同波段的在线歌手。
FCC's decision was contested by the TV broadcasters (Petition as PDF) who fear using the freed channels would interfered with TV signals and live singers who are using the same wave Spaces.
在信号源附近的电磁影响是最严重的，所以尽量少接触诸如电脑、电视、微波炉、电冰箱等设备能够有效减少电磁干扰的影响。
The effect is strongest closest to the source, so literally stepping back from major in-home sources like the computer, TV, microwave and fridge can help minimize exposure.
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