Radio Shack OPTIMUS 15-1843 User manual

Cat. No. 15-1843
Stereo Indoor FM Antenna
Your Optimus Stereo Indoor FM Antenna is easy to install
and provides excellent reception of FM radio stations in
most listening locations. This antenna receives signals
equally well from any direction, reducing noise and static
and improving stereo quality. You can connect the anten-
na’s 75-ohm connector directly to your FM receiver. The
antenna’s compact, modern styling blends well with the
decor of almost any home.
BEFORE YOU BEGIN
Depending upon your audio system setup, you might also
need additional cables or adapters (available at your local
RadioShack store).
Choosing a Mounting Location
To get the best performance from your antenna, place it
indoors as high as possible. For the best results, make
sure the antenna is away from obstructions such as metal
cabinets or bookshelves. (Higher frequencies are notice-
ably affected by obstructions.) Do not mount the antenna
near any metal surface such as a refrigerator, a metal
door or wall, or a water pipe hidden behind a wall. This
greatly reduces the antenna’s ability to receive signals.
Working with Coaxial Cable
• Do not create very sharp bends or kinks in coaxial
cable. Tight 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, or where it will be
crushed, stuffed, wedged, or pinched.
• 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.
CONNECTING THE ANTENNA
75-Ohm Jack
If your FM receiver has a 75-ohm F-type connector, con-
nect the antenna’s 75-ohm coaxial cable directly to the
connector.
Screw-Type Connections
If your FM receiver has screw-type connections, connect
a matching transformer such as Cat. No. 15-1140 (not
supplied) to the antenna’s coaxial cable. Then use a flat-
head screwdriver to connect both of the lugs on the
matching transformer to your FM receiver’s screw termi-
nals.
Pushbutton-Type Connections
Follow these steps if your FM receiver has pushbutton-
type connections.
1. Connect a matching transformer such as Cat. No. 15-
1140 (not supplied) to the antenna’s coaxial cable.
2. Cut both of the metal lugs off of the matching trans-
former.
(illus - show end of
screwed onto 75-ohm
antenna cable being
jack)
(illus - show matching transformer
being screwed onto end of antenna
lugs being screwed into
cable and
screw terminals)
(illus - show lugs being
clipped from wires)
© 1998 Tandy Corporation.
All Rights Reserved.
Optimus and RadioShack are registered trademarks used by Tandy Corporation.

RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
5/98 Printed in China
3. Strip about 1/4 inch of insulation from both wires.
4. For both of the FM receiver’s pushbutton terminals,
press open the terminal’s tab, insert one of the
matching transformer’s bare wires, then release the
terminal.
POSITIONING THE ANTENNA
Follow these steps to find the best placement location.
1. Turn on your FM receiver, then tune it to any station
broadcasting near 98 MHz.
2. Position the antenna as high as possible at the
desired location.
3. Slowly move the antenna until you receive the clear-
est sound, then note the antenna’s location.
4. Tune your FM receiver to any station broadcasting
near 88 MHz. Repeat Step 3 until you receive the
clearest sound, then note the antenna’s location.
5. Tune your FM receiver to any station broadcasting
near 108 MHz. Repeat Step 3 until you receive the
clearest sound, then note the antenna’s location.
6. Using the locations you noted in Steps 2–5 as a
guide, place the antenna at the location that allows
the best reception of all stations.
SPECIFICATIONS
Reception .................................................................. FM
Operating Band .......................................... 88–108 MHz
Polarization Vertical
Reception Direction Omnidirectional
Output Impedance ............................................ 75 Ohms
Dimensions (HWD) ..................... 53/16 ¥ 51/8 ¥ 13/4Inches
(133 ¥ 130 ¥ 45 mm)
Weight .................................................................. 6.2 oz
(2.8 kg)
Specifications are typical; individual units might vary.
Specifications are subject to change and improvement
without notice.
(illus - show bare wires on
matching transformer wires)
(illus - show bare wires being inserted
terminals)into button
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
RadioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WAR-
RANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURA-
TION TO THE DURATION 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 INDI-
RECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAM-
AGES RESULTING FROM INCONVENIENCE, 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 the limitations on how long an implied warranty lasts or the exclusion 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. Ra-
dioShack 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 similar 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 orig-
inal 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 instruc-
tions, improper installation or maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Au-
thorized 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