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QMultiFlex-400™ Installation and Operating Handbook
Range:
0.0GHz to 99.999GHz; step size: 0.0000001GHz (i.e. 100Hz)
Description:
This is the LNB frequency used to receive from satellite.
If the LNB LO frequency has been set on the Edit->Service->LNB menu
then the L-band receive frequencies used by the individual demodulators
will no longer be available and will be replaced with an LNB carrier
frequency. The LNB carrier frequency is the absolute SHF frequency of
the carrier.
6.2.7.2 Rx Symbol Rate
Range:
0.150Msps to 40.0 Msps; step size: 0.000001Msps (i.e. 1sps)
Description:
The symbol rate is the only option when entering an information rate
into the demod. Once the symbol rate is set, the other demod
parameters are determined from the DVBS2 frames being received i.e.
MODCOD & Pilots on or off and roll-off factor (5%, 10%, 15%, 20%,
25% & 35%).
6.2.7.3 Demod Enable/Disable
Each demodulator is controlled by an individual checkbox that is used to enable or disable the
associated demodulator. In order not to interfere with other active demodulators, a
demodulator needs to be disabled before its configuration is changed. See warning at
beginning of this
section
6.2.8
Edit->Service->BUC Screen
The Edit->Service->BUC screen is shown in Figure 6-23.
Table 6-21 LNB Carrier Frequency
Table 6-22 Rx Data Rate
(6.2.7) for more details.
Figure 6-23 Edit->Service->BUC Screen
6-30
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