Radio Shack 15-1847 User manual

Your RadioShack VHF/UHF Amplified Antenna provides
excellent reception of VHF and UHF broadcast TV chan-
nels in most viewing locations. The antenna’s supplied
power injector helps you boost the signal through a long
coaxial cable for better reception. You can connect the an-
tenna either directly to your TV or to your direct-to-home
satellite system. The antenna’s compact modern styling
blends well with the decor of almost any home, and you
can install it in a variety of places such as your attic, loft,
or garage. The antenna’s UV-protected housing is made
of impact-resistant filled copolymer, making the exterior
resistant to weathering and color change. The antenna’s
built-in fixed FM trap helps prevent strong FM stations
from interfering with TV Channels 2–13.
IMPORTANT SAFETY PRECAUTIONS
Many do-it-yourself and professional antenna installers are
injured or killed each year by electric shock. Many power
wires are within 20 to 25 feet of the ground and could easi-
ly be touched by an assembled antenna or cable. Touch-
ing the overhead wires with any part of the antenna is the
same as touching the wires with your bare hand. Contact-
ing an electrical wire almost always results in a very seri-
ous shock.
WARNING! When you install an outdoor 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!
Cat. No. 15-1847
VHF/UHF Amplified Antenna
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To avoid electric shock, please read and follow these im-
portant safety precautions:
• Be sure to select an antenna site well away from all
overhead wires.
• Do not try to guess which overhead wires carry high
voltage. Check with the power company.
• If you notice anything making contact with the over-
head wires, call the power company to have it
removed safely.
• Do not run the antenna’s cable over power wires.
• Get help from a qualified professional when removing
the old antenna if there is any doubt of clearing over-
head wires.
• Never install an antenna by yourself. Be sure to have
at least two people available for help, if needed.
• Never install the antenna when it is windy.
BEFORE YOU BEGIN
Be sure to remove these items before you store or dis-
pose of the packing material.
• Antenna (1)
• Outside diplexer (1)
• Inside diplexer (1)
•1
1/4-inch screws (3)
• AC adapter/power injector (1)
You also need the following items, available at your local
RadioShack store:
• 75-ohm coaxial cable RG-6/U (such as Cat. No. 278-
1316)
• Sealant tape (such as Cat. No. 278-1645)
Depending upon your audio/video system setup, you
might need additional cables or adapters.
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© 1997 Tandy Corporation.
All Rights Reserved.
RadioShack is a registered trademark used by Tandy Corporation.

2
Coaxial Cable Installation Precautions
• Do not bend coaxial cable (RG-6/U) into less than a
3-inch radius. Tighter bends can cause shorts and
change the cable’s impedance.
• Do not install coaxial cable where it will have a pulling
tension of greater than 50 pounds. Leave no tension
on the cable after installing it.
• Use only round-headed staples. Any clamps or
securing devices used with coaxial cable should grip
the cable evenly about the circumference without
crushing the cable. Flat staples can damage coaxial
cable.
• Do not expose coaxial cable to a temperature greater
than 176°F (80°C). Keep the cable away from heat-
ing vents and water heaters.
• Do not install coaxial cable where it will be crushed,
stuffed, wedged, or pinched.
• The cable jacket withstands most outdoor environ-
ments. However, you must seal connections and
splices against water entry.
MOUNTING THE ANTENNA
You can mount your antenna indoors or outdoors on just
about any flat surface. For the best results, mount the an-
tenna horizontally as high as possible away from trees or
other obstructions. (Higher frequencies are noticeably af-
fected by obstructions.) Make sure the front of the anten-
na faces the general direction of the nearest TV station’s
broadcasting antenna.
Important: Do not mount the antenna on any metal sur-
face such as aluminum siding. This greatly reduces the
antenna’s ability to receive signals.
Outdoor Mounting
1. Mark the position for the center mounting screw hole
on the mounting surface.
2. In the marked location, drill a hole slightly smaller
than one of the supplied 11/4-inch screws.
Caution: Be careful not to drill into any objects
behind the surface.
3. Thread one of the supplied screws through the an-
tenna’s center mounting hole. Then use a Phillips
screwdriver to temporarily secure the antenna to the
mounting surface.
Hint: To make sure the mounting location you chose
is the best place for reception of all channels, follow
the steps in “Connecting the Antenna” on Page 3
then tune each of your TV’s channels. If you can tune
all channels, continue with Step 4 to finish mounting
the antenna. If you cannot tune one or more of the
channels, move the antenna to another location and
try again.
4. If necessary, use a carpenter’s level or other leveling
device (not supplied) to make sure the antenna is
horizontal. Then mark the positions for the left and
right screw holes on the mounting surface.
5. In each marked location, drill a hole slightly smaller
than the screw.
6. Thread the remaining supplied screws through the
antenna’s left and right mounting holes, then use a
Phillips screwdriver to tighten all screws and attach
the antenna to the mounting surface.
Indoor Mounting
You can also mount the antenna in an attic, closet, or other
out-of-the way indoor location. The antenna can be mount-
ed on a horizontal mast, closet rod, or on a short piece of
mast suspended from a roof support by a 4-inch wall-
mount bracket (such as Cat. No. 15-883, not supplied). Or,
you can simply place the antenna on a shelf in a closet. Be
sure the antenna is not in a position where it could easily
fall or be damaged.
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3
CONNECTING THE ANTENNA
You can connect your antenna directly to your TV or ex-
isting direct-to-home satellite system.
Caution: Do not connect devices such as amplifiers,
splitters, combiners, or matching transformers between
the power injector and the antenna. Such connections
might cause a short in the amplifier’s power source. If this
happens, the antenna’s indicator will not light and the sig-
nals to your video equipment (multiple TVs or VCRs)
might be significantly degraded.
Note: If your existing antenna cable is 300-ohm cable,
you must replace it with 75-ohm coaxial cable. (300-ohm
cable requires a matching transformer that significantly
interferes with the antenna’s operation.)
Connecting the Antenna Directly to Your TV
1. Connect one end of a 75-ohm coaxial cable to the
antenna’s jack, then seal the connection with sealant
tape.
2. Connect the other end of the antenna’s coaxial cable
to TO ANTENNA on the power injector.
3. Connect the cable from TO TV on the power injector
to your TV’s antenna input jack.
If your TV has screw terminals for VHF/UHF connec-
tion
, connect a 75-to-300 ohm transformer (such as
Cat. No. 15-1140, not supplied) between the power
injector and the VHF/UHF terminals.
If your TV has a 75-ohm VHF connection and a 300-
ohm UHF connection
, connect a signal splitter (such
as Cat. No. 15-1231, not supplied) between the
power injector and the TV’s VHF/UHF connections.
4. Plug the AC adapter into a standard AC outlet.
5. To amplify the antenna’s signal, set OFF/ON on the
power injector to ON.
The indicator on the antenna lights to show that:
• DC power is supplied to the antenna
• There are no shorts in the connection between the
power injector and the antenna
Connecting the Antenna to a Satellite Dish
Follow these steps to connect your antenna to your exist-
ing direct-to-home satellite dish so you can receive local
signals.
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4
1. Connect one end of a 75-ohm coaxial cable to the
antenna’s jack, then seal the connection with sealant
tape.
2. Connect the other end of the coaxial cable to ANT on
the supplied outside diplexer.
3. Connect your satellite dish’s coaxial cable to SAT on
the outside diplexer.
4. Connect one end of another 75-ohm coaxial cable to
SAT/TV on the outside diplexer, then connect the
other end to TV/SAT on the supplied inside diplexer.
5. Connect one end of another coaxial cable to SAT on
the inside diplexer, then connect the other end to
your satellite receiver’s input jack.
6. Connect one end of your TV’s coaxial cable to TO
ANTENNA on the power injector, then connect the
other end to TV on the inside diplexer.
7. Connect TO TV on the power injector to your TV’s
antenna input jack.
If your TV has screw terminals for VHF/UHF connec-
tion
, connect a 75-to-300 ohm transformer (such as
Cat. No. 15-1140, not supplied) between the power
injector and the VHF/UHF terminals.
If your TV has a 75-ohm VHF connection and a 300-
ohm UHF connection
, connect a signal splitter (such
as Cat. No. 15-1231, not supplied) between the
power injector and the TV’s VHF/UHF connections.
8. Plug the AC adapter into a standard AC outlet.
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9. To amplify the antenna’s signal, set OFF/ON on the
power injector to ON.
The indicator on the antenna lights to show that:
• DC power is supplied to the antenna
• There are no shorts in the connection between the
power injector and the antenna
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5
TROUBLESHOOTING
If you have problems, here are some suggestions that might help. If you still have trouble, contact your local RadioShack store
for assistance.
SPECIFICATIONS
Reception ......................................................................................................................................................... VHF and UHF
Bandwidth .......................................................................................................................................................... 54–890 MHz
VHF/UHF Gain .............................................................................................................................................................. 11 dB
Output Impedance ................................................................................................................................................... 75 Ohms
Power Injector ............................................................................................................................................................ 12 VDC
Power Supply ............................................................................................................................. 120 VAC AC-to-DC Adapter
Dimensions (LWD) ................................................................................................................................ 76 ¥ 21/2 ¥ 11/8Inches
(193.04 ¥ 6.3 ¥ 2.8
cm)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
PROBLEM POSSIBLE CAUSE REMEDY
All or most channels are not received
clearly. The power injector is not turned on. Set OFF/ON to ON.
The antenna is not installed in a good
location. Move the antenna to a different loca- tion and try again.
The coaxial cable might be broken. Use another coaxial cable.
Some channels are not received
clearly. You might see some TV stations better with the power injector turned off. Turn the power injector off while watch- ing those stations.
The TV’s picture has diagonal or mov-
ing lines. The antenna might be receiving over- amplification or co-channel interfer-
ence.
Turn the power injector off if it is on, or
on if it is off.
The TV’s picture has ghosting (double
images or shadows of images) The coaxial cable might be broken. Use another coaxial cable.
The antenna is not installed in a good
location. Move the antenna to a different loca- tion and try again.
The power injector is not turned on. Set OFF/ON to ON.

RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
7/97 Printed in the USA
Limited Ninety-Day Warranty
This product is warranted by RadioShack against manufacturing defects in material and workman-
ship under normal use for ninety (90) days from the date of purchase from RadioShack 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 DURATION OF THE WRITTEN LIMITED WARRANTIES
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-
VISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-
cidental or consequential damages, so the above limitations or exclusions 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, un-
less 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 similar design; or (c) refund the purchase
price. All replaced parts and products, and products on which a refund is made, become the prop-
erty 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, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102
We Service What We Sell
3/97