Sinyal ADSL yang Bagus = Koneksi Data Lancar

Tabel 1: Klasifikasi SNR_Margin (Signal-to-Noise Margin)
 

-------------------------------- Makin TINGGI makin BAIK
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29,0 dB ~ ke atas = Outstanding (bagus sekali)
20,0 dB ~ 28,9 dB = Excellent (bagus) 
11,0 dB ~ 19,9 dB = Good (baik) 
07,0 dB ~ 10,9 dB = Fair (cukup)
00,0 dB ~ 06,9 dB = Bad (buruk) 
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Tabel 2: Klasifikasi Line Attenuation (Redaman pada Jalur)
---------------------------------- Makin RENDAH makin BAIK
----------------------------------------------------------
00,0 dB ~ 19,99 dB = Outstanding  (bagus sekali)
20,0 dB ~ 29,99 dB = Excellent (bagus)
30,0 dB ~ 39,99 dB = Very good (baik)
40,0 dB ~ 49,99 dB = Good (cukup)
50,0 dB ~ 59,99 dB = Poor (buruk) 
60,0 dB ~ ke atas  = Bad (amburadul)
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