Radio Shack U-120XR - Manual (Page 2)

2
Using Twin-Lead Cable
To connect flat, twin-lead cable to your antenna:
1. Split one end of the twin-lead cable for a length of about 3
inches. Then strip about 1 /
2
inch of insulation from both
leads.
2. Thread the stripped leads through the antenna’s strain-
relief tab.
3. Wrap each lead around one of the antenna’s lead-in termi-
nals (on both sides of the boom). Be sure there is enough
slack between the strain-relief tab and the antenna termi-
nals to prevent stress on the cable or the terminals.
4. Secure the leads with the supplied flat washers and large
wing nuts.
UNFOLDING THE ANTENNA’S ELEMENTS
1. Hold the main boom’s longer 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. If you plan to add this
antenna to a VHF antenna’s mast, refer to “Adding the UHF An-
tenna to a VHF Antenna Installation” for instructions.
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.
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.
ADDING THE UHF ANTENNA TO A VHF
ANTENNA INSTALLATION
To connect your UHF antenna to a VHF antenna, follow these
steps.
1. Loosen the lock nuts on the VHF antenna’s mast clamp
assembly. Slide the VHF antenna down the mast about 70
inches, then tighten the lock nuts to hold the antenna in
place. Do not overtighten the lock nuts.
2. Mount your UHF antenna at the top of the mast. (See
“Attaching to the Mast.”)
Lead-In Terminals
Strain-Relief Tab
Twin-Lead Cable
Flat Washers Large
Wing Nuts
Main
Boom
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
Mast
Toward TV
Stations’
Antennas
Main Boom Long Element
Wing Boom Elements
Main Boom
Short Elements
15-2162a.fm Page 2 Thursday, April 27, 2000 2:21 PM