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NOT 493-2002-en

DIGITAL HEADEND. - 20 UNITS QPSK-QAM + AMPLIFICATION

Description: 

headend composition

  • 5072 x 3 wall mount enclosure 10m
  • 5069 x 1 wall mount enclosure 14m
  • 5071 x 3 wall mount rail 10m (alternative to ref. 5072)
  • 5239 x 1 walll mount rail 12m (alternative to ref. 5069)
  • 5029 x 4 power supply unit
  • 5076 x 20 qpsk-qam transmodulator
  • 4058 x 3 75 ohms terminal load
  • 4530 x 1 combiner




remarks

  1. to combine this qam output with analogue signal, remember that the real level of the qam signal must be 10 db below the analogue one:

  2. remember to select the qam output channels from high to low frequencies, to compensate for the losses in the links (just follow the instructions of the user manual).
  3. whenever needed, remember to power the lnb from one of the tdts, by setting on the lnb power with the programming unit.
Id Anrterior: 
35
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