December 2014
9
A1.1.5
Digital CABLE television signal of FIRST generation
(DVB-C standard/QAM modulation)
DVB-C Parameters
►
Bandwidth channel
It displays the channel bandwidth up to 9.2 MHz.
►
Spectral inversion
It detects if the input signal has been inverted.
►
Symbol Rate
It represents the number of times the signal status changes in a period of
time. The bandwidth is related to this parameter.
►
Roll-Off Factor
Roll-off factor of Nyquist filter. It indicates the bandwidth excess over the
ideal bandwidth.
►
Constellation
Modulation used by the carriers. It also defines immunity to the system
noise (16QAM, 32QAM, 64QAM, 128QAM and 256QAM).
Summary of Contents for HD Ranger +
Page 1: ...HD RANGER TV SATELLITE ANALYSER 0 MI1914...
Page 15: ...December 2014 2 7 2 3 Equipment Details Front View Figure 4...
Page 16: ...2 8 December 2014 Lateral view Figure 5 Top view Figure 6 Optical Option Refer to annex...
Page 22: ...2 14 December 2014 INSTALLATIONS MANAGEMENT PREFERENCES MENU Figure 7...