Radio Shack Amplified Signal Finder indoor TV/FM antenna User manual

©2003 RadioShack Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks
used by RadioShack Corporation.
15-1870 OWNER’S MANUAL — Please read before using this equipment.
Thank you for purchasing the RadioShack
Amplified Signal Finder™ Indoor TV/FM
Antenna. Your antenna’s IR learning
technology lets you program the VHF/UHF
antenna angle for each channel into its
memory for the best reception. Then you can
use your remote control to select the desired
local TV channel, the antenna automatically
moves to the location you programmed into
its memory. For example, when you select
channel 10 with your remote control, the
antenna automatically moves to the best
reception position that you set for
channel 10. ±
Your antenna’s features include:
IR Learning — learns TV remote control’s or
universal remote control’s TV channel
selection and selects the best reception
antenna angle.
Microprocessor Controlled Antenna
Rotating Control — lets you rotate the
antenna 180° clockwise or counterclockwise
for the best UHF or VHF reception.
50 Memorized Antenna Angles — lets you
use your remote control to select up to 50
channels (1-99) and the corresponding
antenna position that provides the best
reception.
Auto-Switching Function — automatically
switches between the antenna or an external
signal (such as cable, satellite, or video game
system).
Manual Controls — let you adjust the
antenna when your TV’s remote control is not
available.
Memory Cell — lets you store a learned
code until you delete it. ±
Display — indicates the antenna status.
Built-in Amplifier Gain Control — lets you
amplify weak VHF/UHF/FM signal.
Gold Plated "F" Female Connector —
ensures best connection for the external
input port.
+/2146#06
If an icon appears at the end of a paragraph, go
to the box on that page with the corresponding
icon for pertinent information.
R— Warning — Important
— Caution °— Hint
±— Note
CLEAR
POWER
L-TUNING(I)R-TUNING (J) MEMORY
LCD Display
±016'±
• You must have a TV remote control to
program memory into this antenna.
• Learned codes are stored until you delete
them. For example, if you move to a new
location, you might need to delete some of
the stored codes and add new codes. (See
“Deleting Stored Antenna Angles” on
Page 3).
WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rain or moisture.
..CAUTION..
!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-
SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED PERSONNEL.
The lightning symbol is intended to alert you
to the presence of uninsulated dangerous
voltage within this product’s enclosure that
might be of sufficient magnitude to
constitute a risk of electric shock. Do not
open the product’s case.
The exclamation symbol is intended to
inform you that important operating and
maintenance instructions are included in the
literature accompanying this product.
!
WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rainor moisture.
CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-
SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED PERSONNEL.
The lightning symbol is intended to alert you
to the presence of uninsulated dangerous
voltage within this product’s enclosure that
might be of sufficient magnitude to
constitute a risk of electric shock. Do not
open the product’s case.
The exclamation symbol is intended to
inform you that important operating and
maintenance instructions are included in the
literature accompanying this product.
!
#ORNKHKGF5KIPCN(KPFGT +PFQQT68(/#PVGPPC
(%%&'%.#4#6+101(
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This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions: (1) this device may not cause
harmful interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
Product: Amplified Signal
Finder™ Indoor TV/FM
Antenna
Model: 15-1870
Responsible Party: RadioShack
100 Throckmorton
Fort Worth, TX 76102
Phone: [phone]

2
+056#..#6+10
Power the antenna using the supplied 12V,
500 mA AC adapter. 
1. Place the antenna on or near your TV
set or FM receiver.
2. Connect the antenna’s coaxial cable to
your TV set’s 75-ohmUHF/VHF terminal
or your FM receiver’s 75-ohm antenna
terminal. ±
3. If you want to use a second video source
such as cable TV, a satellite dish, or a
video game system, connect it to the
antenna’s CABLE IN terminal using a 75-
ohm coaxial cable/connector (not
supplied) (See “Setting a Secondary
Source” on Page 3).
4. Insert the supplied AC adapter’s small
barrel plug into the DC 12V jack on the
back of the antenna’s base.
5. Plug the AC adapter into a standard AC
outlet. bappears to indicate the power
is turned off.
75+0)6*'.'#40+0)
(70%6+10
Your antenna can learn up to 15 remote
control functions from the remote control so
you can adjust the antenna angle by using
the remote control. To learn all 15 remote
control functions, your TV’s remote control
must have the equivalent MEMORY, CLEAR,
L-TUNING (I) and R-TUNING (J) keys to
replace same key functions on the antenna. If
not, just set the antenna to learn 11 signals
and manually press the above four keys on
the antenna base during the operation. The
antenna uses the latest integrated circuit
recording technology to retain the learned
function even if AC power fails. ±
1. Be sure the antenna’s power is turned
off. bappears.
2. Hold down MEMORY on the antenna
base for 4 seconds until /Q appears.
3. Point the remote control at the display on
the front of the antenna base.
4. If your remote control has the equivalent
keys to replace the antenna’s MEMORY,
CLEAR, L-TUNING (I) and R-TUNING (J)
functions, press the following 15 keys in
sequence: ±
POWER →1 →2 →3 →4 →5 →6 →
7 →8 →9 →0 →MEMORY →CLEAR
→ L-TUNING →R-TUNING
bappears when learning is complete.
If the remote control does not have the
equivalent keys to replace MEMORY,
CLEAR, L-TUNING, and R-TUNING
functions, press the following 11 keys in
sequence. Then press MEMORY to
complete learning. ±
POWER →1 →2 →3 →4 →5 →6 →
7 →8 →9 →0
bappears when learning is complete.
/'/14+<+0)6*'
#06'00##0).'5
The antenna can store up to 50 memorized
best reception antenna angles, selecting
from channel 1-99. Follow these steps to
store the antenna angles for the selected
channels.
1. Point the remote control at the TV to turn
on the TV and the antenna.  or the last
set channel number appears on the
antenna’s display.
2. Use the remote control to enter the
desired channel number on the antenna.
For example, press 0 then 2 for channel
2. The selected channel number
appears for a few seconds, (U flashes
briefly, then the channel number appears
on the antenna’s display window.
3. Press L-TUNING (I) and R-TUNING (J) on
the antenna base or the assigned L-
TUNING (I) and R-TUNING (J) keys on
the remote control to adjust the antenna
angle until your TV gets the best
reception for that channel.
4. Press MEMORY on the antenna base or
the assigned MEMORY key on the
remote control.  flashes.
TO TV CABLE IN +/– GAIN DC 12V
%#76+10
•You must use a Class 2 power
source that supplies 12V DC and
delivers at least 500 mA. Its center
tip must be set to positive and its
plug must fit the antenna's DC 12V jack. The
supplied adapter meets these specifications.
Using an adapter that does not meet these
specifications could damage the antenna or
the adapter.
• Always connect the AC adapter to the
antenna before you connect it to AC power.
When you finish, disconnect the adapter from
AC power before you disconnect it from the
antenna.
!
±016'±
• Your local RadioShack store has accessories
you can use to connect the antenna to your
TV set or FM receiver if they do not have a
75-ohm antenna terminal.
• We recommend you using your existing TV
remote control to learn channel and antenna
angle settings so you can control your TV and
this antenna synchronously.
• If the antenna does not learn the remote
control signals properly, adjust the distance
between them until the antenna learns the
signal.
• The antenna is preset to learn 15 function
signals in sequence. If you do not press the
keys in the same sequence as Step 4, the
antenna may not function properly.
• The antenna learns one key at a time. Each
time you press a remote control’s key, the
antenna learns that key. /Q appears,
confirming that the key was successfully
stored. Press the next key when /Q appears.
• During the learning process, if you do not
press each function key on the remote control
within 10 seconds, the antenna automatically
turns off and you must start again at Step 1.
• On a universal remote control, you can
assign the equivalent keys like MEM,
RESET,
I /REW, and FFWD/ J for MEMORY,
CLEAR, L-TUNING (
I ) and R-TUNING ( J )
functions.
• If you press MEMORY for 4 seconds after the
antenna completes learning, the previously
learned signals will be deleted. Use the
existing remote control or universal remote
control and begin signal learning again from
Step 1.
• Be sure the antenna’s learning setup does
not affect the setup of other existing
equipment.
•appears when you turn on the antenna’s
power for the first time.
• Pressing MEMORY for 4 seconds deletes the
previously learned signals but does not
delete the stored antenna angles.

3
5. Enter that selected channel number for
storing the best reception antenna angle.
Press MEMORY on the antenna base or
the assigned MEMORY key on the
remote control. The stored channel
number appears. ±
4'%#..+0)6*'
5614'&#06'00#
#0).'
1. Press the power key on the remote
control to turn on the antenna.
2. Enter the desired UHF/VHF channel
number.Theantennaautomaticallyturns
to the stored angle for that channel.
3. To adjust the FM receiver’s antenna
angle, press the assigned L-TUNING (I)
and R-TUNING (J) keys on the remote
control, or L-TUNING (I) and
R-TUNING (J) on the antenna base, until
the receiver gets the best reception.
&'.'6+0)5614'&
#06'00##0).'5
&'.'6+0)#0+0&+8+&7#.
#06'00##0).'
1. Be sure the antenna’s power is turned
on.
2. Press the assigned CLEAR key on the
remote control, or CLEAR on the antenna
base.  flashes.
3. Enter the desired channel number then
press the assigned CLEAR key on the
remote control, or CLEAR on the antenna
base.  appears.
4. Enter the desired channel number using
the remote control to tune to another
channel position. ±
&'.'6+0)#..
#06'00##0).'5
1. Unplug the AC adapter from the jack on
the back of the antenna base.
2. Wait for 10 seconds, thensynchronously
hold down L-TUNING (I) and R-TUNING
(J) on the antenna base and reconnect
the adapter to the jack on the back of the
antenna base. bappears. All stored
information is deleted. ±
75+0) )#+0
%10641.
If “snow” appears in the TV screen or the
picture appears to be “rolling”, rotate +/– GAIN
on the back of the antenna base until the
picture improves.
5'66+0)#
5'%10&#4 5174%'
To use a second video source, such as cable
TV, a satellite dish, or a video game system,
press the power key on the remote control to
turn off the power. The antenna automatically
switches to the external input.
6417$.'5*116+0)
We do not expect you to have any problems
with your antenna, but if you do, these
suggestions might help.
%#4'
Keep the antenna dry; if it gets wet, wipe it
dry immediately. Use and store the antenna
only in normal temperature environments.
Handle the antenna carefully; do not drop it.
Keep the antenna away from dust and dirt,
and wipe it with a damp cloth occasionally to
keep it looking new.
If your antenna is not performing as it should,
take it to your local RadioShack store for
assistance. Modifying or tampering with the
antenna’s internal components can cause a
malfunction and might invalidate its warranty.
68$CPFU %JCPPGNU
VHF-LO 2-6
VHF-HI 7-13
UHF 14-69
±016'±
• To make room for more channels, delete
some antenna angles (See “Deleting Stored
Antenna Angles” on Page 3).
• The antenna can store 50 antenna angles for
up to 99 channels, but its receiving range is
limited to channels 1-69 according to TV
broadcasting.
• After all stored antenna angles are deleted,
(U flashes twice and  appears when you
turn on the antenna power.
• If you enter an invalid channel, (U flashes
twice then that channel number appears.
While the display is still flashing the invalid
channel number, enter the correct number
then press clear. Enter the correct channel
number.
2TQDNGO 5WIIGUVKQP
The antenna does
not work or works
poorly.
Turn off the antenna
power then turn it on
again.
Be sure the AC adapter
is properly and securely
connected.
Be sure the antenna
power is turned on. If the
power is turned on but
the antenna still does not
work, return it to the
store.
While learning
commands from a TV
or universal remote
control, the antenna
does not respond.
Be sure the learning
process is correct.
Try the remote control’s
other keys.
Try another remote
control.
6*'(%%9#065 17
61-019
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference in a residential installation. This
equipment generates, uses and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions,
may cause harmful interference to radio
communications.
However, there is no guarantee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by
turning the equipment off and on, the user is
encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving
antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
• Consult your local RadioShack store or
an experienced radio/TV technician for
help.
• If you cannot eliminate the interference,
the FCC requires that you stop using
your antenna.
Changes or modifications not expressly
approved by RadioShack may cause
interference and void the user’s authority to
operate the equipment.

15-1870
06A03
Printed in China
RadioShack Corporation
Fort Worth, Texas 76102
52'%+(+%#6+105
Frequency Range
FM ........................................................................................................................................................................................................................ 88-108 MHz
VHF ...................................................................................................................................................................................................................... 50-230 MHz
UHF .................................................................................................................................................................................................................... 470-860 MHz
UHF/VHF/FM Gain ..................................................................................................................................................................................................... 20 dB Minimum
Gain Control Range .................................................................................................................................................................................................... 45 dB Minimum
Noise Figure ................................................................................................................................................................................................................ 5 dB Maximum
Power Supply ............................................................................................................................................................................................................ 12V DC 500 mA
Insertion Loss (Cable In) .......................................................................................................................................................................... VHF/UHF 4.5 dB Maximum
Weight ......................................................................................................................................................................................................................................... 30 oz
(850 g)
Dimensions (with Antenna Fully Extended) (HWD) .................................................................................................................................. 501/2×101/4×71/32 Inches
(1282 ×261 ×179 mm)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
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 limitations on how long an implied warranty lasts or the exclusion or limita-
tion of incidental 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, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
12/99