15-2162a.fm Page 1 Thursday, April 27, 2000 2:21 PM
U-120XR UHF Antenna
OWNER’S MANUAL — Please read before using this equipment.
3. Press the supplied large end plugs into the main boom and
the cradle boom.
BEFORE YOU BEGIN
Before you begin installation, read this manual and the sepa-
rate Consumer Product Safety Commission information sheet.
For your safety and convenience, plan each step of the installa-
tion and purchase the necessary hardware in advance. The
hardware required and the order in which you perform the steps
depend on the mounting and connection method you choose.
CONNECTING LEAD-IN CABLE
TO THE ANTENNA
We recommend RG-6 cable and, if you prepare your own ca-
ble, a quality F-connector. You can also use 300-ohm flat, twin-
lead cable. (RadioShack carries a variety of suitable cables and
connectors.)
Warning: When you install your antenna, use extreme caution.
If the antenna starts to fall, let it go! It could contact overhead
power lines. If the antenna touches the power line, contact with
the antenna, mast, cable, or guy wires can cause electrocution
and death. Call the power company to remove the antenna. Do
not attempt to remove it yourself.
Note: If you prepare your own coaxial cable, be sure to slide
the supplied matching transformer’s weather boot onto the ca-
ble before you attach the F-connector.
Using Coaxial Cable
ASSEMBLING THE ANTENNA
Main
Boom
Assemble the entire antenna on the ground.
Strain-Relief Tab
F-Connector
1. Use the supplied hardware to loosely attach one of the sup-
plied mast clamp assemblies to the main boom, as shown.
Lead-In
Terminals
Note: To access the mast clamp holes, move the antenna’s
Weather Boot
Spade
Terminals
elements out of the way as needed.
Flat Washers
Large
Matching
Transformer
U-Bolt
Wing Nuts
Mast Clamp
If you plan to add this antenna to a VHF antenna’s mast, refer
to “Adding the UHF Antenna to a VHF Antenna Installation” on
Page 2 for instructions. This type of setup requires twin-lead
cable. See “Using Twin-Lead Cable” on Page 2 to connect the
cable to your antenna. If you are connecting this UHF antenna
directly to your TV, follow these steps to make this connection
using coaxial cable.
Main Boom
Lock Nuts
Backup Plate
2. Attach the other mast clamp assembly to the cradle boom.
(Be sure it faces the same direction as the main boom’s
mast clamp assembly, shown above.) Fold out the two sets
of metal support straps on the cradle boom and attach
them to the corresponding holes on the main boom using
the two supplied 11/2-inch screws and large wing nuts.
1. Thread a matching transformer’s spade terminals through
the antenna’s strain-relief tab. (Matching transformers are
available at your local RadioShack store.)
2. Slide the spade terminals around the antenna’s lead-in ter-
minals (on both sides of the boom), then secure them with
the supplied flat washers and large wing nuts.
Cradle Boom
3. Screw the cable’s F-connector onto the matching trans-
former.
4. Slip the weather boot over the connection. If you use a
rebuilt cable without a weather boot, cover the connection
with weather-resistant tape.
MastClamp
Assemblies
Metal Support
Straps
Main Boom
© 2000 Tandy Corporation.
All Rights Reserved.
RadioShack is a registered trademark used by Tandy Corporation.
RadioShack.com is a trademark used by Tandy Corporation.
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15-2162a.fm Page 3 Thursday, April 27, 2000 2:21 PM
3. Use only about 70 inches of twin-lead cable to connect
your UHF antenna to the VHF antenna. Be sure the cable
is long enough to reach from the lead-in terminals of one
antenna to the lead-in terminals of the other. Connect the
cable to your UHF antenna first. (Follow the steps in the
section “Using Twin-Lead Cable” on Page 2.)
Note: In some locations, you might need to use an indoor/out-
door 300-ohm splitter/combiner (available at your local Ra-
dioShack store) to receive a satisfactory picture on your TV.
ROUTING THE CABLE TO YOUR TV/VCR
If you use coaxial cable:
4. Split the other end of the twin-lead cable for a length of
about 3 inches. Then strip about 1/2 inch of insulation from
both leads.
• 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.
5. Remove the VHF antenna’s large wing nuts and flat wash-
ers from its lead-in terminals. (If you used coaxial cable to
connect the VHF antenna to your TV, also remove the
spade terminals from the lead-in terminals.)
• Use coaxial cable nail-in clips every few feet to secure the
cable between the mast and where the cable enters the
house.
6. Wrap each lead of the twin-lead cable around one of the
VHF antenna’s lead-in terminals (on both sides of the
boom).
• 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.
Twin-Lead Cable
to UHF Antenna
• Use a wall-through lead-in tube (not supplied) to neatly
route the coaxial cable through walls.
VHF Antenna’s
Lead-In Terminal
If you use twin-lead cable:
• Be sure the twin-lead cable remains at least 4 inches away
from all metal surfaces.
Flat Washers
• Use standoff insulators about every 4 feet. Twist the twin-
lead cable about three turns between standoff insulators.
LargeWing
Nuts
• Read the separate Consumer Product Safety Commission
sheet for grounding instructions.
7. Replace the spade terminals (if removed in Step 5), flat
washers, and large wing nuts.
CONNECTING TO YOUR TV/VCR
Connect the antenna’s lead-in cable to your TV/VCR’s antenna terminals according to the type of cable you used. RadioShack car-
ries a variety of matching transformers, if one of these suits your needs. Below are some sample connections.
Make connections as described if you have:
• Coaxial antenna lead-in
Connect to TV/VCR’s
300-Ohm Screw Terminals
• Twin-lead TV/VCR antenna terminals
RadioShack
Indoor/Outdoor
Matching Transformer
Cat. No. 15-1140
Connect
Coaxial Lead-In
from Antenna
3
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15-2162a.fm Page 4 Thursday, April 27, 2000 2:21 PM
Make connections as described if you have:
• Coaxial antenna lead-in
Connect to TV/VCR’s
75-Ohm F-Connector
• Coaxial TV/VCR antenna terminal
Coaxial Lead-In
from Antenna
Make connections as described if you have:
• Twin-lead antenna lead-in
ConnecttoTV/VCR’s
75-Ohm F-Connector
• Coaxial TV/VCR antenna terminal
RadioShack
Connect Twin-Lead
Lead-In from Antenna to
Screw Terminals
Matching Transformer
Cat. No. 15-1253
Make connections as described if you have:
• Twin-lead antenna lead-in
Connect to TV/VCR’s
300-Ohm Screw Terminals
• Twin-lead TV/VCR antenna terminals
Twin-Lead Lead-In
from Antenna
Limited Ninety-Day Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for ninety (90) days from the date of purchase from Ra-
dioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES
AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DU-
RATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY
TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PER-
FORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM IN-
CONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF
RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclu-
sions may not apply to you.
In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store. RadioShack
will, at its option, unless otherwise provided by law: (a) correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the same or sim-
ilar design; or (c) refund the purchase price. All replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned
parts and products may be used in the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original warranty period.
You will be charged for repair or replacement of the product made after the expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions,
improper installation or maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Authorized
Service Facility; (c) consumables such as fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-
up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
We Service What We Sell
12/99
RadioShack
A
15-2162
A Division of Tandy Corporation
Fort Worth, Texas 76102
04/00
Printed in the USA
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