Hỏi các bác về chức năng LINEAR EQUALIZER của amply?

Discussion in 'Dành cho thành viên mới' started by minhhai, 24/3/09.

  1. minhhai

    minhhai Advanced Member

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    Thưa các bác, trên amply Luxman có núm chuyển Linear Equalizer ở 2 nấc: Up Tilt và Down Tilt. Vậy chức năng của các nấc này là gì ạ?
    Trân trọng cảm ơn các bác giúp đỡ. :D
     
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  2. minhhai

    minhhai Advanced Member

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    Re: Hỏi các bác về chức năng của amply?

    Các cao thủ đâu rồi, giúp em với!!!!! :D
     
  3. vuhuynh_1985

    vuhuynh_1985 Advanced Member

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    Đang cùng câu hỏi với bác chủ. Không biết bác chủ đã biết chưa thì chỉ giáo lại em với
     
  4. zeropp

    zeropp Approved Member

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    Bác chịu khó dịch về nội dung Linear Equalizer (Lọc tuyến tính) nhé.

    Linear Equalizer
    Most HFC networks use up
    -tilted RF amplifier output levels, meaning that their RF
    output levels increase at higher frequencies. Today’s networks typically employ a
    linear output tilt, so that a plot of output level versus frequency is a straight line that
    tilts upward from low to high frequency. This linear output tilt is produced at the
    node using a passive network called a
    linear equalizer
    .

    Both the linear equalizer and the cable equalizer introduce greater
    signal loss at lower frequencies. However, whereas the cable equalizer response is
    curved, the linear equalizer response is a straight line, indicating equal loss per unit
    of frequency.
    The dB value of a linear equalizer indicates the amount of tilt it produces, where the
    tilt is equal to its loss at lowest rated frequency subtracted from its loss at highest
    rated frequency. As with cable equalizers, plug
    -in linear equalizers are typically
    available in a wide range of fixed dB values.
     
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  5. vuhuynh_1985

    vuhuynh_1985 Advanced Member

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    Thanks bác rất nhiều ah!
     

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