Radio Shack VU-75XR - Manual (Page 2)

2
UNFOLDING THE ANTENNA’S ELEMENTS
1. Hold the main boom’s elements near the pivot points and
pull them away from the boom until they snap into the self-
locking plastic support insulators.
Caution: To avoid damage to the elements, do not pull
them near their outer ends. Once the elements are locked
into position, do not attempt to unlock them. Doing so might
break the self-locking tabs.
2. Hold each wing boom and turn its elements until they snap
squarely into place (perpendicular to the boom).
3. Press the supplied small end plugs into the wing booms.
4. Bolt the triangular wing boom brackets onto the main boom
using the supplied 1 1 /
2
-inch screw and small wing nut, as
shown.
5. Insert the top and bottom wing booms into the wing boom
brackets. Secure them with the four supplied 1 1 /
4
-inch
screws and small wing nuts, as shown.
ATTACHING TO THE MAST
We recommend that you enlist the help of another person be-
fore you put up the mast or attach your antenna to it. How you
set up your mast depends on your specific installation. Refer to
the separate Consumer Product Safety Commission informa-
tion sheet for recommended methods.
1. Slide the antenna’s mast clamp assembly over the end of
the mast.
2. Tighten the mast clamp assembly’s lock nuts to hold the
antenna in place. Do not overtighten the lock nuts.
Caution: The crossover wires must not touch the antenna
boom, the mast, or each other. If necessary, carefully bend
the crossover wires to provide at least 1 /
2
inch of clearance
between parts.
3. Set up the mast, then rotate it so the antenna’s shorter ele-
ments point toward the broadcast antennas of the stations
you want to receive.
ROUTING THE CABLE TO YOUR
TV/VCR/FM RECEIVER
If you use coaxial cable:
• Use plastic tape or mast standoff insulators to secure the
coaxial cable to the mast at about 3-foot intervals. Continue
down the roof and the side of the house using roof and wall
standoff insulators.
• Use coaxial cable nail-in clips every few feet to secure the
cable between the mast and where the cable enters the
house.
• Use a 75-ohm grounding block at the point where the coax-
ial cable enters the house. Read the Consumer Product
Safety Commission sheet for grounding instructions.
• Use a wall-through lead-in tube (not supplied) to neatly
route the coaxial cable through walls.
If you use twin-lead cable:
• Be sure the twin-lead cable remains at least 4 inches away
from all metal surfaces.
• Use standoff insulators about every 4 feet. Twist the twin-
lead cable about three turns between standoff insulators.
• Read the separate Consumer Product Safety Commission
sheet for grounding instructions.
Wing Boom
Brackets
Main Boom
1 1 / 2 -Inch
Screw
Small Wing Nut
Small Wing Nuts
1 1 / 4 -Inch
Screws
Top Wing Boom
Bottom Wing Boom
Wing Boom
Brackets
Crossover Wires
Mast
Toward TV
Stations’
Antennas
Main Boom Long Elements
Wing Boom Elements Main Boom
Short Elements
15-2151.fm Page 2 Wednesday, April 26, 2000 8:25 PM