Raymarine Satellite TV Antenna Systems
Adjusting the LNB Skew Angle
(Linear Polarization Only)
LNB Skew Angle
The LNB skew angle only needs to be adjusted when the target
satellite is linear polarized. In order to receive the maximum
satellite signal level, the LNB skew angle must be adjusted
according to the calculation of current GPS location and target
satellite.
It only needs to be adjusted when changing from one satellite
to another, or when the vessel has traveled a significant
geographic distance. It should NOT need to be readjusted if
the vessel stays in the same location and is operating on the
same satellite.
Skew Angle Adjustment for STV33
Polarization of your Raymarine STV33 antenna must be
accomplished manually by the following steps.
• Remove the upper part of the Radome after switching the
power OFF.
• Loosen the 3 screws that connect the LNB to the feed horn.
• Turn the LNB to place it to the angle indicated on the back of
the feed horn.
• Tighten the 3 screws.
Figure 21 : Manual Angle Adjustment LNB Skew
