International Datacasting SuperFlex SFX2100 Series, Руководство пользователя

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S R A / S F X 2 1 0 0 S E R I E S S A T E L L I T E R E C E I V E R
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Aside from the Common Menu Items, the following menu items are available:
Menu Item Description
Show
Attributes Selecting this button will always return you back to the LNB
Attributes page, as shown in Figure 4-7. The current LNB offset
value in kHz is displayed, as calculated by the receiver as it
compensates for LNB drift.
Edit Selecting this button will enter the Edit LNB Attributes page, as
shown in Figure 4-8.
Reset LNB
Offset This will reset the receiver’s internal LNB drift tracking offset
frequency back to 0.0 kHz.
Figure 4-8 Edit LNB Attributes Page
The following fields can be edited on the Edit LNB Attributes page:
Edit Field Description
Frequency
Reversal Enables or disables LNB frequency reversal. Off is the default.
Frequency reversal permits the use of other LNB variants that may
use low side Local Oscillators (LOs) instead of high side LOs. The
use of LNBs such as older C-Band type with low side LOs can
cause spectral inversion, and this feature can make the LNB appear
NOTE:
The LNB
Attributes are
applicable to
both DVB
Carriers.