19-1207.fm Page 1 Friday, November 10, 2000 11:04 AM
BTX-128
2-Channel 1-Watt
UHF Business Band
Transceiver
with CTCSS
19-1207.fm Page 3 Friday, November 10, 2000 11:04 AM
Setting a UHF Business Band
Frequency ..................................... 23
About Quiet Tone ........................... 28
Operation .......................................... 33
Care ................................................... 35
Specifications .................................. 36
ˆ Features
Your RadioShack 2-Channel 1-Watt UHF
Business Band Transceiver is a portable,
two-way business radio service trans-
ceiver that you can carry almost any-
where. The transceiver is compact and
light, making it an ideal choice for your
business needs.
Programmable Frequencies — an au-
thorized service facility can program the
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Features
19-1207.fm Page 4 Friday, November 10, 2000 11:04 AM
transceiver to any UHF business band
frequency you have a license to use – no
crystals to buy!
Note: Your local RadioShack store must
send the transceiver to an authorized ser-
vice facility to program the transceiver
with a frequency. You must show your li-
cense to store personnel.
38 Quiet Tone CTCSS (Continuous
Tone Control Squelch System)
—
helps reduce interference from other
transceivers which are operating on the
same frequency, in the same area.
PLL-Controlled Circuitry — provides
accurate and stable channel selection.
TX/BATT Indicator — flashes green
while the transceiver is turned on, lights
green while transmitting, and turns red
when battery is low.
4
Features
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ˆ FCC Regulations
FCC LICENSE REQUIRED
This transceiver is intended for use in the
operation of commercial activities, educa-
tional, philanthropic, or ecclesiastical in-
stitutions, and hospitals, clinics, or
medical associations.
The Federal Communications Commis-
sion (FCC) requires you to have a license
before you operate this transceiver. Un-
less you are already licensed to operate
on one of the preset frequencies, you
must apply for a frequency through the
PCIA (Personal Communication Industry
Association), a non-profit organization
that assigns frequencies nationwide to
help prevent conflicts between different
businesses using transceivers in the
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FCC Regulations
19-1207.fm Page 6 Friday, November 10, 2000 11:04 AM
same area. For more information about
getting a license, contact the PCIA at
800-759-0300, extension 3068 (in Virgin-
ia 703-739-0300, extension 3068).
For other questions concerning the li-
cense application, contact the FCC at
717-337-1212, or write:
FCC
P.O. Box 1040
Gettysburg, PA 17325
For the latest FCC application form and
instructions, call the FCC's fax-on-
demand service at 1-202-418-0177 from
a fax machine and request one or more
of the following documents:
To receive:
Enter:
All forms and instructions
000600
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FCC Regulations
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To receive:
Enter:
Form 600 instructions only
Main Form 600 only
006001
006002
006003
Form 600 schedules only
If you do not have a fax machine, you can
call the Government Forms Distribution
Center at 1-800-418-FORM and request
that the form and instructions be mailed
to you.
FCC PART 90 RULES
You must be familiar with Part 90 of FCC
Rules before you operate your transceiv-
er. The operation instructions in this man-
ual conform to Part 90, but do not cover
all items in Part 90.
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FCC Regulations
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Overall, Part 90 states that:
• You must have a valid license before
you use the transceiver.
• As licensee, you are responsible for
proper operation of all transceivers
operating under your license author-
ity.
• You can let unlicensed persons oper-
ate this transmitter, as long as you
take precautions to prevent unautho-
rized transmissions.
• You must use this transceiver only
for the commercial use of your busi-
ness, and only when other commer-
cial channels (such as the
telephone) are either not available or
not practical.
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FCC Regulations
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ou must always yield the operating
• Y
frequency to communications that
involve the safety of life or property.
• You must take reasonable precau-
tions to prevent harmful interference
to other services operating on the
same frequency.
• You must not transmit program
material of any kind used in connec-
tion with commercial broadcasting.
• You must not provide a service that
is normally handled by telephone or
telegraph unless such broadcasts
involve the safety of life or property
or in emergencies such as an earth-
quake, hurricane, flood or a similar
disaster where normal communica-
tion channels are disrupted.
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FCC Regulations
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• During
each
transmission
or
exchange of transmissions, you
must identify your station with the
call sign issued to you by the FCC,
or once each 15 minutes during peri-
ods of continuous operation.
• You must keep a written record of
any maintenance or modification
made to the transceiver, and you
must make this record available for
inspection upon demand by the
FCC.
Violating any of the provisions of Part 90
can result in fines and/or confiscation of
equipment.
Your equipment might cause TV or radio
interference even when it is operating
properly. To eliminate interference, you
can try one or more of the following cor-
rective measures:
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FCC Regulations
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• reorient or relocate the receiving
antenna
• increase the distance between the
equipment and the radio or TV
• use outlets on different electrical cir-
cuits for the equipment and the radio
or TV
Consult your local RadioShack store if
the problem still exists.
You must use shielded interface cables
with this equipment.
Additional FCC Regulations
The Business Radio Service is under the
jurisdiction of the Federal Communica-
tions Commission (FCC). Any adjust-
ments or alterations that would alter the
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FCC Regulations
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performance of the transceiver so it no
longer meets the original FCC type ac-
ceptance or would change the frequency-
determining method are strictly prohibit-
ed.
Replacement or substitution of crystals,
transistors, integrated circuits, regulator
diodes, or any other component that is of
a unique nature with components other
than those recommended can violate the
technical regulations of the FCC Rules or
violate type acceptance requirement of
the rules.
Before you operate the transceiver, you
must obtain your license. It is illegal to
transmit without the appropriate license,
which you can get by submitting a com-
pleted FCC Form 600 to the FCC (or
through the PCIA). Furthermore, you are
required to understand Part 90 of the
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FCC Regulations
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FCC Rules prior to operating your trans-
ceiver. It is the user's responsibility to see
that this unit is operating at all times in
accordance with the FCC Rules.
ˆ A Quick Look at
Your Transceiver
CHANNEL A/B
VOLUME/OFF
PTT
TX/BATT
MON
EAR/MIC
13
A Quick Look at Your Transceiver
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ˆ Preparation
INSTALLING THE BATTERY
PACK
The supplied Ni-MH battery pack, when
fully charged, provides power to your
transceiver for up to 10 hours. You must
install the battery pack into your trans-
ceiver, then charge it.
Caution: Do not remove the plastic wrap
from the battery pack. Doing so can per-
manently damage the battery.
LOCK
1. Slide
on the
battery compartment
cover to the right to
unlock it, then slide
the battery compart-
LOCK
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Preparation
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ment cover in the direction of the
arrows and lift it off.
2. Plug the battery pack’s connector
into the connector inside the battery
compartment. Then place the battery
pack in the compartment.
Note: The connector fits only one
way. Do not force it.
3. Replace the battery compartment
LOCK
cover, then slide
lock the cover.
to the left to
CHARGING THE BATTERY
PACK
Before you use the battery pack for the
first time, you must use the supplied bat-
tery charger to charge it for about 14
hours. You cannot use the transceiver
while you charge the battery pack.
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Preparation
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To ensure maximum range, operate the
transceiver with the battery pack fully
charged. As the voltage decreases, the
range decreases.
Caution: The supplied 12V DC, 200 mA
battery charger was designed specifically
for your transceiver. Use only the sup-
plied battery charger.
VOLUME/OFF
1. Turn
fully counter-
clockwise until it clicks to turn off the
transceiver.
DC
2. Pull out the rubber cover on the
12V
jack on the lower side of the
transceiver and insert the charger’s
barrel plug into the jack. Then plug
the other end of the charger into a
standard AC outlet.
If TX/BATT lights red and flashes
green when the transceiver is on, the
transceiver has about 60 minutes of
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battery power remaining. Recharge
the battery pack.
3. Unplug the AC adapter from the AC
outlet after the battery is fully
charged.
Caution: Although the battery pack is de-
signed to be charged using the supplied
battery charger for up to a year, do not
charge the battery pack longer than 24
hours at a time.
CONNECTING THE
ANTENNA
1. Align the slots around the antenna’s
connector with the tabs on the
antenna jack on the top of the trans-
ceiver.
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2. Press the antenna down over the
jack and turn the antenna’s base
clockwise until it locks into place.
3. To detach the antenna, turn the
antenna’s base counterclockwise.
Then lift off the antenna.
Connecting an Optional
Antenna
Although the supplied rubber duck anten-
na provides excellent local reception, you
can connect an optional external mobile
antenna or outdoor base station antenna
to your transceiver for better reception of
weak signals. The antenna jack on the
top of the transceiver makes it easy to
use the transceiver with a variety of an-
tennas. Your local RadioShack store
sells a variety of antennas.
18
Preparation
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USING THE BELT CLIP
The supplied belt clip lets you easily at-
tach the transceiver to your belt.
Slide the belt clip onto the tab at the back
of the transceiver until it clicks. To re-
move the clip, pull up on its middle tab
and slide it down.
CONNECTING AN
EARPHONE/EXTERNAL
SPEAKER
To listen privately or to hear better in a
large area such as a warehouse, you can
EAR
pull up the rubber cover on the
and
MIC
jacks, then plug a monaural ear-
phone or an external speaker with a 3.5
1
8
mm ( / inch) plug (not supplied) into the
EAR
jack on the side of the transceiver.
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Preparation
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This automatically disconnects the built-
in speaker.
Listening Safely
To protect your hearing, follow these
guidelines when you use an earphone.
• Set the volume to the lowest setting
before you begin listening. After you
begin listening, adjust the volume to
a comfortable level.
• Do not listen at extremely high vol-
ume levels. Extended high-volume
listening can lead to permanent
hearing loss.
• Once you set the volume, do not
increase it. Over time, your ears
adapt to the volume level, so a vol-
ume level that does not cause dis-
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Preparation
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comfort might still damage your
hearing.
Traffic Safety
Do not use an earphone with your trans-
ceiver when operating a motor vehicle or
riding a bicycle in or near traffic. Doing so
can create a traffic hazard and could be
illegal in some areas.
If you use an earphone with your trans-
ceiver while riding a bicycle, be very
careful. Do not listen to a continuous
broadcast. Even though some earphones
let you hear some outside sounds when
listening at normal volume levels, they
still can present a traffic hazard.
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Preparation
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USING AN EXTERNAL
SPEAKER/MICROPHONE
An external speaker/microphone can
make it easier to use the transceiver
when you clip it to your belt, so you do
not have to lift the transceiver to your
mouth each time you transmit. Pull up the
EAR
MIC
jacks
rubber cover from the
and
and plug the speaker/microphone’s 2.5
3
32
mm ( / inch) plug into the jacks. This
automatically disconnects the transceiv-
er’s built-in speaker and microphone.
SETTING FREQUENCY
OPTIONS
Before you can use your transceiver, you
must set your transceiver to a UHF busi-
ness band frequency you have a license
to use. Then you can select a preset qui-
et tone CTCSS (Continuous Tone Con-
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Preparation
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trol Squelch System) frequency and set
your transceiver to use it.
1. Set your transceiver to a UHF busi-
ness band frequency (see “Setting a
UHF Business Band Frequency” on
Page 23).
2. Select a quiet tone frequency then
set the DIP switches to that fre-
quency (see “Using a Quiet Tone
Frequency” on Page 29).
You can select one quiet tone frequency
at a time. If you do not want to use a quiet
tone frequency, skip Step 2.
SETTING A UHF BUSINESS
BAND FREQUENCY
There are eight UHF business band fre-
quencies available in your transceiver.
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Preparation
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• 464.50 MHz (Brown Dot)
• 464.550 MHz (Yellow Dot)
• 467.7625 MHz (J Dot)
• 467.8125 MHz (K Dot)
• 467.850 MHz (Silver Star)
• 467.875 MHz (Gold Star)
• 467.900 MHz (Red Star)
• 467.925 MHz (Blue Star)
Channel A is preset to 464.550 MHz and
Channel B is preset to 464.500 MHz. You
can set Channel A or B to any frequency
listed on Page 24.
VOLUME/OFF
1. Turn
fully counter-
clockwise until it clicks to turn off the
transceiver.
2. Remove the battery compartment
cover. Then lift up the plastic cover
marked QUIET.
24
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Note: Be sure the battery pack is
connected.
PTT
MON
, then turn
3. Hold down
and
VOLUME/OFF
clockwise to turn on
the transceiver. The transceiver
beeps once.
MON
4. Press
once. The transceiver
sounds a two-tone sequence.
CHANNEL A/B
5. Rotate
to select the
channel you want to set.
25
Preparation
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6. Choose a UHF
dot frequency
from the list on
Page 24. Then
use a pointed
object such as
DIP
Switches
a straightened
paper clip to
set the posi-
tion of each
DIP switch to 1
(up) or 0 (down) as indicated in the
following table.
DIP Switch Setting
Channel Frequency
0 = down
Number
(MHz)
1 = up
000001
000010
000011
000100
000101
1
2
3
4
5
464.5000
464.5500
467.7625
467.8125
467.8500
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DIP Switch Setting
Channel Frequency
0 = down
Number
(MHz)
1 = up
000110
000111
001000
6
7
8
467.8750
467.9000
467.9250
MON
7. Press
once. If the DIP switch
setting is correct, the transceiver
sounds a three-tone sequence. If the
DIP switch setting is incorrect, the
transceiver beeps once.
8. Turn the transceiver off then on.
Note: If you do not turn off the transceiv-
er to reset the power, the original fre-
quency setting remains unchanged.
If you want to set your transceiver to a
UHF business band frequency other than
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the frequencies listed on Page 24, you
can take your transceiver to an autho-
rized facility to set your transceiver to a
frequency you have a license to use.
ABOUT QUIET TONE
Quiet tone helps eliminate interference
between different users of the same fre-
quency, letting you talk and listen to peo-
ple who are using other transceivers set
to the same frequency and quiet tone
code. This is like having a sub-channel
within a channel, giving you greater com-
munication flexibility. When you set a qui-
et tone code — there are 38 to choose
from — and turn on your transceiver’s
quiet tone, the transceiver transmits a
tone with your transmission, letting you
communicate with anyone who has a
transceiver set to the same frequency
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Preparation
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and code. This tone is too low for you to
hear, but other transceivers can detect it.
Once you set a quiet tone on the trans-
ceiver, it only receives those transmis-
sions that include the same tone. If two
different groups operate transceivers in
the same area on the same frequency,
they do not hear each other’s broadcast if
they both use quiet tone and each selects
a different quiet tone.
Using a Quiet Tone Frequency
VOLUME/OFF
1. Turn
fully counter-
clockwise until it clicks to turn off the
transceiver.
2. Remove the battery compartment
cover. Then lift up the plastic cover
marked QUIET.
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3. Choose a quiet tone code from the
following table, then use a pointed
object such as a straightened paper
clip to set the position of each DIP
switch to 1 (up) or 0 (down) as indi-
cated in the following table.
DIP Switch Setting
Quiet Frequency
0 = down
Code
(Hz)
1 = up
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
None
1
2
67.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
3
4
5
6
7
8
9
10
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DIP Switch Setting
Quiet Frequency
0 = down
Code
(Hz)
1 = up
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
010110
010111
011000
011001
011010
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
162.2
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DIP Switch Setting
Quiet Frequency
0 = down
Code
(Hz)
1 = up
011011
011100
011101
011110
011111
100000
100001
100010
100011
100100
100101
100110
27
28
29
30
31
32
33
34
35
36
37
38
167.9
173.8
179.9
186.2
192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
4. Replace the plastic cover and the
battery compartment cover. Then
VOLUME/OFF
turn
clockwise until it
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clicks to turn on the transceiver. The
transceiver sets the quiet tone code.
Note: If the DIP switch setting is not
listed in the table on Pages 30–32,
no tone is set.
ˆ Operation
Notes:
• You can only communicate with
another transceiver that is using the
same channel and/or the same quiet
tone code as your transceiver.
• Your transceiver’s range varies
depending on factors such as posi-
tion, terrain, and battery condition.
Buildings absorb transmitted signals
and, if they contain metal, might
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Operation
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completely block the signals. Trees
and heavy cloud formations have a
similar effect, though not as severe.
VOLUME/OFF
1. Turn
clockwise to turn
on the transceiver. The TX/BATT
indicator flashes green about once
per second.
CHANNEL A/B
2. Rotate
to select the
preset channel A or B.
PTT
3. To transmit, hold down
. Then
hold the transceiver about 3 inches
from your mouth and speak slowly in
a normal voice. The TX/BATT indica-
PTT
tor lights green. Release
you finish your transmission.
when
Note: If you hold down PTT for more
than 2 minutes, the transceiver auto-
matically stops transmitting and
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Operation
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sounds an alert tone. The TX/BATT
indicator flashes green.
4. To hear everything that happens on
the channel including weak transmis-
MON
sions, press
.
VOLUME/OFF
5. Turn
fully counter-
clockwise until it clicks to turn off the
transceiver.
ˆ Care
Modifying or tampering with the trans-
ceiver’s internal components can cause a
malfunction and might invalidate its war-
ranty and void your FCC authorization to
operate it. If your transceiver is not per-
forming as it should, take it to your local
RadioShack store for assistance.
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Care
19-1207.fm Page 36 Friday, November 10, 2000 11:04 AM
ˆ Specifications
Frequency Range .. 461.0375–469.5625 MHz
Channels ...................................................... 2
Modulation Type ........................................ FM
Power Supply .......................... 6V, 1400 mAh
Ni-MH battery pack
Channel Bandwidth ............. 25 kHz/12.5 kHz
Transmit Power ................................ 1W ERP
External Earphone Jack ............................. 1/8-inch
(3.5 mm)
External Microphone Jack ................ 3/32-inch
(2.5 mm)
Dimensions ........... 213/16 × 53/16 × 15/8 inches
(72 × 132 × 41 mm)
Weight (with battery pack) .................. 11.6 oz
0.33 kg)
36
Specifications
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Specifications are typical; individual units
might vary. Specifications are subject to
change and improvement without notice.
37
Specifications
19-1207.fm Page 38 Friday, November 10, 2000 11:04 AM
ˆ Notes
38
Notes
19-1207.fm Page 39 Friday, November 10, 2000 11:04 AM
Limited One-Year Warranty
This product is warranted by RadioShack against manufactur-
ing defects in material and workmanship under normal use for
one (1) year from the date of purchase from RadioShack com-
pany-owned stores and authorized RadioShack franchisees
and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack
MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED
WARRANTIES, INCLUDING THOSE OF MERCHANTABIL-
ITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO THE DURATION OF THE WRIT-
TEN LIMITED WARRANTIES CONTAINED HEREIN. EX-
CEPT 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 PERFORMANCE OF THE
PRODUCT OR ARISING OUT OF ANY BREACH OF THIS
WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY
DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUEN-
TIAL 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 similar (continued)
39
Notes
19-1207.fm Page 40 Friday, November 10, 2000 11:04 AM
(continued) design; or (c) refund the purchase price. All re-
placed parts and products, and products on which a refund is
made, become the property of RadioShack. New or recondi-
tioned 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, im-
proper or abnormal usage, failure to follow instructions, im-
proper installation or maintenance, alteration, lightning or
other incidence of excess voltage or current; (b) any repairs
other than those provided by a RadioShack Authorized Ser-
vice 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 ser-
vice 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
19-1207
811082110A
11A00
RadioShack Corporation
Fort Worth, Texas 76102
Printed in China
|