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• #2891 rocket nagyúr

  2009-02-14 10:50:57 #2891

  Összes hozzászólása itt Válaszok az összes hozzászólására itt Válaszok erre a hozzászólásra

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  rocket

  nagyúr

  Talaltam egy FAQ-ot a temaval kapcsolatban:

  "Downstream (Rx) Receive Power Level:
  This is the amount of signal received by the modem from the transmitter in the cable company head-end.

  For all modems:
  -15 dBmV to +15 dBmV maximum.
  -12 dBmV to +12 dBmV recommended.

  0 dBmV is the "optimal" level.

  Upstream (Tx) Transmit Power (a.k.a. Return Signal) level:
  This is the amount of signal transmitted by the modem to reach the receiver in the cable company head-end.

  +8 dBmV to +58 dBmV maximum for QPSK. (DOCSIS 1.x)
  +8 dBmV to +55 dBmV maximum for 8 QAM and 16 QAM. (DOCSIS 1.x)
  +8 dBmV to +54 dBmV maximum for 32 QAM and 64 QAM. (A-TDMA DOCSIS 2.0)
  +8 dBmV to +53 dBmV maximum for S-CDMA DOCSIS 2.0 modulation rates.

  Recommended upstream signal levels are +35 dBmV to +52 dBmV. "

  "A lower resolution generally means that there can be more quality per pixel."

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