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本帖最後由 levis 於 2012-10-23 00:05 編輯

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住唐樓?
電話線不是cat 5
用明線cat 5放到地下機房......
寬頻 有700k收貨

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Freq.唔同, 干擾實有, 只不過唔會太大
Twisted Pair ge功用就系甘啦~

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點解會?
一個係DC,一個係AC
大家係5同野

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一般都會分開高低volt.喉...
好少一齊行

見你個位重用緊HKT英式頭細socket....
可能好耐之前裝修做喉唔講究啦

[ 本帖最後由 cccccctt 於 2009-10-27 02:02 編輯 ]

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電線電流高低,干擾程度都有分別

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It's not about interference, but DANGEROUS!

Hight volt and low volt cables should NOT go in one pipe.

If you just talk about interference, the 50Hz on the electricity supply will have very little effect on the ADSL broadband performance, as there is a filter on ADSL equipment to use higher than 3kHz frequency band only.  The 50Hz might induce a hum on your analog phone indeed.

Anyway, I say it again, NO high volt and low volt cables in the same pipe.

Stephen Wong @ Hong Kong

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我睇過 d regulations, 濕電同電話等電線唔可以行同一條管道, 如果唔係算違法
有錯請插

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似天線,如果同電線一齊行你應該可能已經上唔到網,打唔到電話。

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本帖最後由 levis 於 2012-10-23 00:07 編輯

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