Modemi

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Modemi
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Data communications modems POTS analog channel
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Simplified block diagram for a modem
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Simplified block diagram for an asynchronous FSK
modem
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Frequency and bandwidth allocation for a Bell
System 103-compatible modem
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Frequency and bandwidth allocation for a Bell
System 202-compatible modem
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V.32 constellation diagram using trellis encoding
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V.33 constellation diagram using trellis encoding
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Bell System Modem Specifications
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Telephone line bandwidth
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Modulation/Demodulation
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The V.32 constellation and bandwidth
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The V.32bis constellation and bandwidth
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Traditional modems
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56K modems
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Modulacije