PCDVD數位科技討論區 - 請各位大大推薦一下防電磁波的空機殼→厚1.0mm，不要有透測

印象中不知道是鉛板還是鋅板沒特別留意= =
去買仙人掌吧美觀似乎也可以防電磁波(日本節目看的真實性未知)

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轉貼自
http://tw.knowledge.yahoo.com/quest...d=1205071805643

不要道聽途說以訛傳訛看看專家 (ieee) 的論文怎麼說
http://www.mcw.edu/gcrc/cop/cell-ph...th-FAQ/toc.html

我引用它們的話

The consensus of the scientific community, both in the US and internationally, is that the power from these mobile phone base station antennas is far too low to produce health hazards as long as people are kept away from direct access to the antennas (see Q13 and Q14).
簡單的說目前美國及國際上的科學家認為幅射能量太低不用考慮對人體有傷害

但在橫向八公尺內有機會有足夠的幅射影響健康
Safety guidelines for uncontrolled (public) exposure could be exceeded if antennas were mounted in such a way that the public could gain access to areas within 8 meters/25 feet (horizontal) of the radiating surface(s) of the antennas themselves [14]. This could arise for antennas mounted on or near the roofs of buildings. For example, Petersen et al [60] found that 2-3 feet (1 meter) from a roof-top antenna radiating 1600 W ERP, the power density was as high as 2 mW/cm-sq (compared to the ANSI/IEEE [3] public exposure standard of 0.57-1.2 mW/cm-sq).

例如 Petersen 在天線一公尺測得 2 mW/cm-sq 而安全規範是0.57-1.2 mW/cm-sq
所以只要你家在八公尺之外就不會對你的健康造成影響 (我假設手機公司不敢自行把功率調大超標)

至於鍍鋅鋼板是不是可以防電磁波
你如果把自己關在鍍鋅鋼板箱中又有良好的接地你能達到無幅射干擾
在fcc測試電磁幅射的房間就是類似這樣的結構如果有信號跑進去就沒人知道是手機的干擾還是待測家電造成的干擾這是我們電機講的屏蔽效應鋼板防電磁波靠得不是衰減是把它導引到地線中和掉
鍍不鍍鋅無所謂鍍奈米材料是被商人唬嚨你要用的是良導體和良接地
如果很有錢可以參考買太空總署的產品
http://www.lerc.nasa.gov/WWW/RT1996/5000/5480g.htm

而超標電磁幅射是會導致癌症
http://infoventures.com/emf/top/spectrum_Adey2.html
但注意這些白老鼠是近距離用兩百瓦打九十秒得的癌症我們離那個水平還遠著
我找過網站查不到「在大哥大基地台附近住的人，得癌症的人是一般人3到4倍。」的說法從何而來似乎沒有論文有支持反倒看到兩篇值得參考
http://www.emfsite.com.tw/a00_10.asp
http://www.wedar.com/library4/tcfund-qa000724.htm