Set The Lnb Skew Angle - KVH Industries TracVision RV1 Installation Manual

16

Set the LNB Skew Angle

Follow these steps to set the antenna's LNB to the
skew angle supplied by the Setup Wizard.
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 four #8-32 screws securing the
radome to the antenna (see Figure 39).
c. Carefully lift the radome straight up until
clear of the antenna assembly and set it aside
in a safe place. Do not place the radome on a
hot steel surface – the heat may warp the
radome.
IMPORTANT!
Make sure the antenna is pointed away from
the sun whenever the radome is removed. The
high-gloss reflector can focus sunlight into a
narrow beam, generating a significant amount
of heat that can cause damage and injury.
d. Locate the LNB on the back of the antenna's
reflector (see Figure 40).
e. Using a 2 mm Allen hex key, loosen the two
M4 set screws securing the LNB to the choke
feed (see Figure 41).
f. 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.
g. Tighten the two M4 set screws to secure the
LNB in place. Apply 11 in.-lbs (1.2 N-m) of
torque, if possible.
h. Reinstall the radome.
Linear Systems Only
Figure 39: Removing the Radome
#8-32 Screw (x4)
Figure 40: Location of LNB on Back of Antenna Reflector
Reflector
Figure 41: LNB Skew Angle Adjustment
Choke Feed
Set Screw
(1 of 2)
Skew Arrow
LNB
LNB
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