Important Remark; Dss (Qpsk) Digital Channel Configuration - Promax US TV EXPLORER II Manual De Uso

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.
DVB channels tuning may require an adjusting process. It is recommended to follow
next procedure:
1. From the spectrum analyzer mode
frequency.
2. Switch to Measurements mode
3. If in the lower line of the screen does not appear MPEG-2 message (and
consequently BER is unacceptable), by turning the rotary selector deviate the tuning
frequency until MPEG-2 message appears. Finally tune channel again to minimize
the frequency deviation which optimizes the BER and therefore minimize the
BER.
If it is not possible to detect any MPEG-2 channel, make sure that digital signal
parameters are correctly defined.

5.13.5 DSS (QPSK) Digital Channel Configuration

Press the Measurements Configuration
CONFIGURATION menu and turn the rotary selector
signals parameters which can be defined by user and are described below:
1) Channel BW (channel bandwidth)
Enables the channel bandwidth to be selected. The selection of this parameter is
essential for the correct operation of the tuner, as it affects the frequency
separation of the carriers.
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USER'S MANUAL. US TV EXPLORER

IMPORTANT REMARK

[13], tune the channel at its central
[12], measurement selection.
[17] key to access the
[1] to access the QPSK
II
11/2013