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本文探讨了目前各大城市兴建高电视塔时所遇到的如何估计射频电磁场对人体影响的问题。汇集了一些国家对电磁场的生物效应的研究情况以及对各频段的电场强度规定的容许界限;讨论了电视、调频天线的近区场强的计算方法和实测结果:叙述了国外已建成的高电视塔的使用经验。文末提出了作者对这个问题的初步看法。
This article explores how to estimate the effects of RF electromagnetic fields on the human body when it comes to the construction of high-tech towers in major cities. It brings together some countries’ research on the biological effects of electromagnetic fields and the allowable limits on the electric field strength of each frequency band. The calculation methods and measured results of the near field strength of television and FM antennas are discussed. Tower experience. At the end of the article, I put forward the author’s initial view on this issue.