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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 BUC frequency used to transmit to satellite.
6.2.4.13 IF/L-band Output Power
Range:
0.0dBm to -25.0dBm; step size: 0.1dBm
Description:
This sets the transmitted output power when using IF.
Range:
0.0dBm to -40.0dBm; step size: 0.1dBm
From 2150MHz to 2410MHz, the lowest power limit is -30dB.
Description:
This is the transmitted output power when using L-band.
6.2.4.14 Modem Carrier
This allows the modem carrier to be switched on/off.
6.2.4.15 Tx Spectral Roll-off
The spectral roll-off determines the slope of the carrier at its edges. The supported roll-off
factors are listed in Table 6-14.
Range:
Description:
6.2.4.16 Tx Spectral Inversion
Spectral inversion is an On/Off control that controls whether the carrier I and Q components
are swapped or not, allowing the modem to compensate for any other equipment in the
transmit or receive chain that has introduced a spectral inversion.
Table 6-11 BUC Carrier Frequency
Table 6-12 IF Output Power
Table 6-13 L-band Output Power
5%, 10%, 15%, 20%, 25%, 35%
All spectral roll-off factors are available for DVB-S2 & DVB-S2X
Table 6-14 Tx Spectral Roll-off
6-16
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