Promax TV Explorer HD Manual De Usuario página 161

USER'S MANUAL. TV EXPLORER HD / HD
Figure 21.- Mesurement configuration screen (QPSK signals).
5) Modulations (Only in DVB-S2)
Modulation used by carriers. It defines also the system noise immunity (QPSK and
8PSK).
6) Polarization
It affects to the signal reception in the SAT band (satellite). It allows to select the
the signal polarisation among Vertical/Right (vertical and circular clockwise) and
Horizontal/ Left (horizontal and circular counterclockwise) or, to deactivate the
polarization (
OFF
7) Sat Band
Selects the High or Low frequency band for satellite channel tuning.
8) LNB Low Osc.
Sets the LNB low band local oscillator.
9) LNB High Osc.
Sets the LNB high band local oscillator.
NOTE: In the channel tuning mode the Polarization and Sat Band options cannot be
modified.
This configuration menu shows, besides the QPSK/8PSK signal parameters
selected by user, all the values automatically detected:
Roll Off Nyquist filter roll-off factor.
Pilots (Only in DVB-S2) Pilots detection in transmission.
05/2011
LE
).
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