Set The Lnb Skew Angle - KVH Industries TracVision TV3 Installation Manual

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Set the LNB Skew Angle

Follow these steps to set the antenna's LNB to the
skew angle supplied by the Setup Wizard. A dual
linear LNB is shown in this procedure.
a. At the rear panel of the TV-Hub, set the
power switch to the Off position. Verify its
Power light goes out.
CAUTION
Disconnect power from the antenna before
you remove the radome. The antenna has
moving parts that can cause injury.
b. Remove the antenna's radome as described
on page 9.
c. Locate the LNB on the back of the antenna's
reflector (see Figure 51).
d. Using a 2 mm Allen hex key, loosen the two
M4 set screws securing the LNB to the choke
feed (see Figure 52).
e. Adjust the LNB, clockwise or counter-
clockwise, until the skew arrow on the LNB
points to the correct skew angle you noted
when running the Setup Wizard.
IMPORTANT!
Make sure the LNB is fully inserted into the
choke feed to ensure optimum performance.
f. Tighten the two M4 set screws to secure the
LNB in place. Apply 11-in-lbs (1.2 N-m) of
torque, if possible.
g. Reinstall the radome.
Linear Systems Only
Figure 51: Location of LNB on Back of Antenna Reflector
Reflector
LNB
Figure 52: LNB Set Screws and Skew Angle Adjustment
Choke Feed
M4 Set Screws (x2)
Skew Arrow
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