Important Remark; Dss (Qpsk) Digital Channel Configuration - Promax US TV EXPLORER 2 User Manual

USER'S MANUAL. US TV EXPLORER II
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 analyser 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.

5.13.4 DSS (QPSK) Digital Channel Configuration

Press the Measurements Configuration
CONFIGURATION menu and turn the rotary selector [1] to access the QPSK signals
parameters which can be defined by user and are described below:
10/2007

IMPORTANT REMARK

[13], tune the channel at its central
[12], measurement selection.
[17] key to access to the
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