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#21 (permalink) |
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長老會員
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是要配合機房沒錯,要換小烏龜,是什麼型號要換什麼型號
1.用一段時間的,叫它換線不是更好 2.要換,應該要有原因吧,自己也可以先檢查看看小烏龜內數據,是什麼照成 Signal to Noise (SNR): 5db or below =bad, no sync/intermittent sync 8db-13db = average - and no sync issues 14db-22db = very good 23db-28db = excellent 29db-35db = rare, can throw a rock at co/remote Line attenuation teens = rare, great copper lines, close to C.O./Remote 20-30 = excellent 30-40 = very good 40-60 = average 60-65 = poor 65 and above will have issues |
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送花文章: 5,
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#22 (permalink) | |
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長老會員
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