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CableWorld CW-4142 User Manual

Digital professional cable tv headend, qpsk demodulator

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CW-4000
DIGITAL PROFESSIONAL CABLE TV HEADEND
CW-4142
QPSK DEMODULATOR
USER'S MANUAL
08/05

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Summary of Contents for CableWorld CW-4142

  • Page 1 CW-4000 DIGITAL PROFESSIONAL CABLE TV HEADEND CW-4142 QPSK DEMODULATOR USER'S MANUAL 08/05...
  • Page 2: Select Menu

    2. Power cord 1 ea. The instrument incorporates an own switched mode When mounted in rack cabinet, place the CW-4142 power supply. This power supply is accommodated in QPSK DEMODULATOR above the relevant TV the right side of the unit, under a shielding cover and MODULATOR.
  • Page 3: Receiving Frequency

    CW-4142 QPSK DEMODULATOR 3.1 Using the push buttons 4. Adjustable and query only parameters in the normal menu The requested parameter can be selected with the SELECT MENU buttons. With these buttons you cycle usual setting Normal through the available parameters (menu items).
  • Page 4: Symbol Rate

    (18 V) horizontal polarization Horizontal The CW-4142 QPSK DEMODULATOR supports this The LNB powering is equipped with automatic facility. In this case, after the search procedure, the short circuit protection. In case of short circuit the programs to be descrambled simultaneously can be LNB powering will be switched off for 4.5 seconds...
  • Page 5 CW-4142 QPSK DEMODULATOR Therefore with such modules, when pushing STORE, − The VCR parameter shows the value peculiar to one service should be selected only, or the display the internal (Viterbi) error correction coding of the should read the name of the service, which is transport stream.
  • Page 6: Colour Bar

    CA module and the MPEG-2 decoder. Dear User! This permits the demodulator to automatically Setting the parameters of the CW-4142 QPSK follow possible changes in the transmitter side DEMODULATOR needs care and accuracy. In case (e.g. regional switch-overs etc.)
  • Page 7 CW-4142 QPSK DEMODULATOR Technical data Sound output TV System DVB-S / MPEG2 Nominal output level approx. 0 dBm Input data scale number ~10, Input signal 950 to 2150 MHz depending on the Input level -65 to -25 dBm transmission IF bandwidth...