主题：高压输电线的辐射安全问题——为后代，向西西河友求教 -- 大秦猛士

我搞错鸟，以为是900米呢。。。

就你找的那个你看看里面有没有关于高压输电线的数据？本人亲自干过的还不如你这个胡说八道的。

The "Minimum Safe Distance" from a mobile phone base antenna is described by the Food and Drug Administration/FCC as follows: "To be exposed to levels at or near the FCC limits for cellular or PCS frequencies an individual would essentially have to remain in the main transmitted radio signal (at the height of the antenna) and within a few feet from the antenna . . . . In addition, for sector-type antennas RF levels to the side and in back are insignificant." Note that the quote about safe distances applies to the actual radiating antenna, not to the tower (or building or structure) the antenna is on. For a mobile phone base station antenna mounted on a tower that is 5+ meters high (about 15 feet), there should be no areas that will come anywhere close to the RF radiation safety guidelines, so the concept of a "minimum safe distance" doesn't really apply to generally occupied areas.

http://www.hps.org/publicinformation/ate/faqs/cellphoneqa.html

But what's the difference between the radiating antenna and the the tower the antenan is on?

装修时铝薄膜接地,来个电磁辐射的屏蔽(有钱的用金薄膜.得,和上太空的卫星一样了).

个人觉得微波炉和手机还利害点.

60*60=360 > 500,000/220=2273 ?

你LD数学不好被你忽悠?

假设天线正对你家的墙，中间无遮挡，并且是定向900MHz天线，这个是最坏情况了，在你家外墙的信号估计在-60dBm左右，也就是1e-9 W左右。比你坐在计算机边上用蓝牙低得多。

你问的radiating antenna估计是在说全向天线。

从何说起？

The safety distance here is the distance between radiating antenna and object you concern. The RF power is sent from antenna, rather than tower or building that supports the antenna.

60*60=3600> 500,000/220=2273

一般电源辐射场和距离的一次方成反比.

不过这里是线源，算来又算近场了。

估算可能还是辐射场跟一次方成反比.

不过这么低频，能辐射出多少电磁波啊？

不过高压线附近能搞出电离辐射吗？