Labels:text | screenshot | font OCR: HOW ADSL CHANNELS ADAPT TO NOISE Bits per Signal-to- Bits per channel noise ratio channel Frequency Frequency Frequency Figure 2. Common types of noise on a communications channel are fre- quency-dependent, affecting only part of the relevant spectrum. Because ADSL divides the channel into many individual 4kiIz bands and uses each one to its full capacity, it makes efficient use of the whole channel.
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