Promax Promax TV EXPLORER HD ISDB-Tb, Manual

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USER’S MANUAL. TV EXPLORER HD ISDB-T/T
B
Page 42 11/2010
4)
Modulation
It defines the modulation type. When selecting this function and turn the rotary
selector [1] to choose one of the following modulations: 16 , 32 , 64 , 128 and
256 .
Figure 19.- Screen of mesurement configuration ( QAM signals).
5.13.2 ITU-T J.83/B (QAM Annex-B) Digital Channel Configuration
Press the Measurements Configuration [17] key to access the
CONFIGURATION menu and turn the rotary selector [1] to access the QAM Annex-
B signals parameters, which can be defined by user and are described below:
1)
Spectral inversion
If necessary, activates the Spectral inversion ( On ). If the spectral inversion is not
correctly selected, reception will not be correct.
2)
Modulations
It defines the modulation type. When selecting this function and pressing the rotary
selector [1] a multiple-choice menu will appear on the screen, this menu
permits to choose one of the following modulations: 64 or 256 .