Radio Shack BTX-127 User Manual

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Cat. No. 19-1206
OWNER’S MANUAL
Please read before using this equipment.
BTX-127
CTCSS • VHF/FM
Business Band Transceiver
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Your RadioShack BTX-127 CTCSS • VHF/FM Business Band Transceiver is a portable, tw o-way business radio service transceiver that you can carry almost anywhere. The transceiver is compact and light, making it an ideal choice for your business needs.
Your transceiver has these features: Programmable Frequencies — an au-
thorized service facility can program the transceiver to any VHF 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 service facility to program the transceiv­er with a frequency. You must show your license to store personnel.
38-Tone CTCSS (Continuous Tone Con­trol Squelch System) — helps reduce in­terference from other transceivers which are operating on the same frequency, in the same area.
Rechargeable Long-Life Battery Pack and Battery Charger — the supplied bat­tery charger lets you conveniently re­charge your transceiver’s long-life battery pack while it is on the transceiv­er.
High/Low Power Switch — lets you in­crease the transmitted signal strength to increase the transceiver’s range, or decrease it to sav e batt ery power.
Earphone/Speaker Jack and External Microphone Jack — let you connect an external earphone or speaker and an external mic rophone to help ensure understandable communications in noisy areas.
Built-In Modulation Limiter Circuit — automatical ly adjusts for a wide variety of voice levels to ensure an under­standable transmission.
Battery Low Indicator — shows the battery pack’s condition.
PLL-Controlled Circuitry — provides ac­curate and stabl e channel selection.
© 1998 Tandy Corporation.
All Rights Reserved.
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Flexible Antenna — provides excellent reception.
Belt Clip — lets you attach the transceiv­er to your belt or waist band.
WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rain or moist ure.
The transceiver’s preset frequencies are:
• 151.625 MHz (red dot)
• 151.700 MHz
• 151.760 MHz
• 151.820 MHz
• 151.880 MHz
• 151.940 MHz
• 151.955 MHz (purple dot)
• 154.570 MHz (blue dot)
• 154.600 MHz (green dot)
Note: Some manufacturers identify some business band frequencies by col­or. These “dot” frequencies are shown above.
We recommend you record your trans­ceiver’s serial number here. The number is on the back of the transceiver.
Serial Number _________________
CAUTION
RISK OF ELEC-
!
TRIC SHOCK.
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVIC­ING TO QUALIFIED PERSON­NEL.
This symbol is intended to alert you to the presence of uninsulated dangerous volt­age within the product’s en­closure that might be of sufficient magnitude to con­stitute a risk of electric shock. Do not open the product’s case.
This symbol is intended to inform you that important
!
operating and maintenance instructions are included in the literature accompanying this product.
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CONTENTS
FCC Regulations ......... .. ............. .. .. ............. .. .. ............. .. .. ............. .. .. ............. .. .. ..... 5
FCC License Required ..................................................................................... 5
FCC Part 90 Rules ........................................................................................... 5
Additional FCC Regulat ions .............. ............................................... ................ 7
Preparation .............................................................................................................. 8
Installing the Battery Pack ................................................................................ 8
Charging the Battery Pack ............................................................................... 9
Connecting the Ant enna .......... ............ ...................... ..................................... 10
Connecting an Optional Antenna ............................................................ 11
Using the Belt Clip .......................................................................................... 11
Connecting an Earphone/External Speaker ................................................... 11
Listening Safely ....................................................................................... 12
Traffic Safety ........................................................................................... 12
Using an External Spea ker/Microphone ............. .. ................................ .......... 12
Setting Frequen cy O pti ons .............. .. ........................................... ...................... ... 13
About CTCSS ................................................................................................. 13
Using a CTCSS Frequency ............................................................................ 14
Operation ............................................................................................................... 16
Operational Hints ............................................................................................ 17
Care and Maintenance .......................................................................................... 18
Specifications ......................................................................................................... 19
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FCC Regulations
FCC License Required This transceiver is intended for use in
the operation of commercial activities, educational, philanthropic, or ecclesi asti­cal institutions, and hospitals, clinics, or medical associations.
The Federal Communications Commis­sion (FCC) requires you to have a li­cense before you operate this transceiver. Unless 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 same area. For more information about get ti ng a license, contact the PCIA at 800-759-0300, ex­tension 3068 (in Virginia 703-739-0300, extension 3068).
For other questions concerning the li­cense application, contact the FCC at 717-337-1212, or write:
FCC P.O. Box 1040 Gettysburg, PA 17325
To receive: You enter: All forms and instructions 000600
Form 600 instruct ions only 006001 Main Form 600 only 006002 Form 600 schedules only 006003
If yo u do not hav e a fax m ac hine, yo u can call t he Gover nm ent F orm s Dis tri­bution 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 transceiver. The operation instructions in this manual conform to Part 90, but do not cover all items in Part 90.
Overall, Part 90 states that:
• You must have a valid license before you use the transceiver.
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:
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• As licensee, you are responsible for proper operation of all transceivers operating under your license author­ity.
• You can let unlicensed persons operate this transmitter, as long as you take precautions to prevent unauthorized transmissions.
• You must use this transceiver only for the commercial use of your busi­ness, and only when other commer­cial channels (such as the telephone) are either not available or not practical.
• You must always yield the operating frequency to communications that involve the safety of life or property.
• You must take reasonable precau­tions to prev ent harmful interfer ence to other services operating on the same frequency.
• You must not transmit program material of any kind used in connec­tion 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 earthquake, hurr icane, flood or a similar disaster where normal communication channels are disrupte d.
• 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 periods 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.
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Your trans ceiver might cause TV or radio interference even when it is operating properly. To determine whether your transceiver is causing the interference, turn off your transceiver. If the interfer­ence goes away, your transceiver is causing it. Try to eliminate the interfer­ence by:
• mov ing your transc eiver aw ay fro m the receiver
• contacting your local RadioShack store for help
If you cannot eliminate the interference, the FCC requires that you stop using your transceiver.
Additional FCC Regula tions The Business Radio Service is under the
jurisdiction of the Federal Communica­tions Commission (FCC). Any adjust­ments or al terations that would alter the performance of the transceiver so it no longer meets the original FCC type ac­ceptance or would change the frequen­cy-determining method are strictly prohibited.
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 completed FCC Form 600 to the FCC (or through the PCIA). Further­more, you are required to understand Part 90 of the FCC Rules and Regula­tions prior to operating your transceiv­er. It is the user’s responsibility to see that this unit is operating at all times in accordance with the FCC Rules and Regulations.
Replacement or substitution of crystals, transistors, ICS, 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.
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Preparation
Installing the Battery Pack The supplied battery pack, when fully
charged, provides power to your trans­ceiv er fo r up to 8 hours. You m u st in stall the battery pack in your transce iver, then charge it.
Caution: Do not remove the plastic wrap from the battery pack. Doing so can per­manently damage the battery.
Follow these steps to install the battery pack.
1. Unlock the battery compartment cover by sliding both of the cover’s latche s toward the front o f the tra n s­ceiver as shown. Then slide the cover in the direction of the arrow and lift it off.
illus - show bat comp cover latches being released and cover being slid down
the battery pack into the compart­ment while applying slight pres­sure to the bottom of the battery pack.
illus - show battery pack being installed into compartment
3. Slide the battery cover back into place, then slide both of the latches toward the back of the transceiver to lock it.
To remove the battery pack, unl ock the compartment, then turn the transceiv­er face down and gently tap it into your palm so the battery pack slides out.
2. With the battery printing facing up, align the contacts on the battery pack with the contacts inside the battery compartment. Then, press
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Charging the Battery Pack Before you use the battery pack for the
first time, you must use the supplied bat­tery charger to charge it for about 12 to 14 hours to bring it to a full charge.
You cannot use the transceiver while you charge the batt ery pack.
Caution: The supplied battery charger was designed specifically for your trans­ceiver. Use only the supplied battery charger.
Follow these steps to charge the battery pack.
1. Turn VOLUME fully counterclock­wise to OFF to make sure power is turned off .
illus -
show
VOLUME
other end of the charger into a standard AC outlet.
illus - show barrel plug/
charger. Show plug being
plugged into CHRG and
AC plug about to be
plugged into
an AC outlet
If the RX/TX indicator lights yellow when the transceiver’s power is on and you press PUSH TO TALK, recharge the battery pack .
illus - show
PTT and
RX/TX lit on
front of
transceiver
2. Pull out the rubber cover over the CHRG jack on the side of the trans­ceiver, and i nsert the charger’s bar­rel plug into the jack. Then plug the
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Notes:
• A nickel-cadmium battery pack lasts longer and delivers more power if you occasionally let it fully dis­charge. To do this, use the trans­ceiver until the RX/TX indicator lights yellow when you press PUSH TO TALK.
• To prevent damaging a nickel-cad­mium battery pack, never charge it in an area where the temperature is above 113°F (45°C) or below 32°F (0°C) .
Important: At the end of a rechargeable battery pack’s useful life, it must be recy­cled or disposed of properly. Contact your local, county, or state hazardous waste management authorities for infor­mation on recycling or disposal pro­grams in your area. Some options that might be available are: municipal curb­side collection, drop-off boxes at retail­ers such as your local RadioShac k store, recycling collection centers, and mail­back programs.
Connecting THE Antenna Follow these steps to attach the sup-
plied flexible antenna to your trans­ceiver.
illus - show antenna being connected to transmitter
1. Align the slots around the antenna’s connector with the tabs on the antenna jack on top of the trans c eiv er.
2. While squeezing the base of the antenna, press the antenna down over the jack and turn the antenna’s base clockwise until it locks into pl ace.
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Connecting an Opti onal Antenna Although the supplied flexible antenna
provides excellent local reception, you can connect an optional external mobile antenna or outdoor base station antenna to your trans ceiver for better rec eption of weak signals. The antenna jack on the top of the transceiver makes it easy to use the transceiver with a variety of an­tennas. Your local RadioShack store sells a variety of antennas.
Caution: Never connect an antenna that is not specifically tuned for th e transceiv­er’s frequency range.
Using the Belt Clip The supplied belt clip lets you easily clip
the transcei ver to your belt.
illus - show belt clip being attached to transceiver with screws
Connecting an Earphone/External Speaker
To listen privately or to hear better in a large area such as a warehouse, you can plug a monaural earphone or an external speaker with a 1/8-inch (3.5 mm) plug (not supplied) into the EAR jack on thetop of the transceiver. This automatically disconnects the built-in speaker.
Use a Phillips screwdriver to secure the clip to the transceiver’s back with the supplied scr ews.
illus - show earphone/speaker being connected to EAR
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Listening Saf ely 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 le vel.
• Do not listen at extremely high vol­ume 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 vol­ume level that does not cause dis­comfort might still damage your hearing.
Traffic Safety Do not use an earphone with your trans-
ceiver when operat ing 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.
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. Plug the speaker/microphone’s plug into the EAR jack and the MIC jack on top of the transceiver. This automatically disconnects the transceiver’s built-in speaker and microphone.
illus - show ext. speaker/ mike being connected to top of transceiv er
If you use an earphone with your trans­ceiver 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 sti ll can present a traf fic haz­ard.
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À
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Setting Frequency Options
Before you can use your transceiver, an authoriz ed service fac ility must set you r transceiver to a VHF business band fre­quency you have a license to use. Then, you can select a preset CTCSS (Contin­uous Tone Control Squelch System) fre­quency and set your transceiver to use it.
Here is what you need to do to set your transceiver to use a business band fre­quency and CTCSS.
Send your transcei ver to an authorized
þ service facility to have it set to a busi­ness band frequency.
Set the DIP switches for a CTCSS fre­quency (see “Using a CTCSS Frequen­cy” on Page14).
Set your transceiver to that CTCSS
à frequency.
Set a DIP switch to activate or deacti-
Õ vate CTCSS.
You can select one CTCSS frequency at a time. If you do not want to use a CTC­SS frequency, skip Steps 2_4 above.
About CTCSS CTCSS helps eliminate interference
between different users of the same frequency, letting you talk and listen to people who are using other transceiv­ers set to the same frequency and CTCSS code. This is like having a s ub­channel within a channel, giving you greater communication flexibility. When you set a CTCSS code — there are 38 to choose from — and turn on your transceiver’s CTCSS, the transceiver transmits a tone with your transmis­sion, letting you communicate with anyone who has a transceiver set to the same frequency and code. This tone is too low for you to hear, but oth­er transceivers can detect it.
If CTCSS is turned on and set to the same tone on the receiving transceiv­er, it only receives those transmissions that include the tone. If two different groups oper-ate transceivers in the same area on the same frequency, they do not hear each other’s broad­casts if they both use CTCSS and each select a different CTCSS tone. Your transceiver’s default CTCSS tone is 100 Hz.
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Using a CTCSS Frequency Follow these steps to set your transceiv-
er to a CTCSS frequency and then acti­vate or deactivate CTCSS.
1. Turn VOLUME fully counterclock­wise to make sure power is turned off.
2. Remove the battery compartment cover (see “Installing the Battery Pack” on Page 8). You do not have to remove the battery pack.
3. Choose a CTCSS code from the table on the right. Then use a pointed object such as a straight­ened paper cli p to set the posit ion of each DIP switch inside the battery compartment to 1 (up) or 0 (down) corresponding to the setting for that CTCSS code.
illus - show D IP switch
inside battery compartment
set to any setting
Dip Switch Setting Key:
0 = down
1 = up
CTCSS
Code
Freq
(Hz)
DIP Switch
Setting
14
CTCSS
none
167.0
000000
000001 2 71.9 000010 3 74.4 000011 4 77.0 000100 5 79.7 000101 6 82.5 000110 7 85.4 000111 8 88.5 001000 9 91.5 001001
10 94.8 001010 11 97.4 001011 12 100.0 001100 13 103.5 001101 14 107.2 001110 15 110.9 001111 16 114.8 010000 17 118.8 010001 18 123.0 010010 19 127.3 010011 20 131.8 010100 21 136.5 010101 22 141.3 010110 23 146.2 010111 24 151.4 011000
Code
Freq
(Hz)
DIP Switch
Setting
25 156.7 01 1001
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CTCSS
26 162.2 011010 27 167.9 011011 28 173.8 011100 29 179.9 011101 30 1 8 6. 2 01111 0 31 1 9 2. 8 011111 32 203.5 100000 33 210.7 100001 34 218.1 100010 35 225.7 100011 36 233.6 100100 37 241.8 100101 38 250.3 100110
4. Hold down PUSH TO TALK, then turn VOLUME clockwise until it clicks. The transceiver sets the CTCSS code. Release PUSH TO TA L K .
If the transceiver beeps once and RX/TX lights green for about 2 seconds, that means the CTCSS setting was successful.
If the transceiver beeps 3 times and RX/TX lights red for about 2 seconds, the CTCSS setting did not work. Start over at Step 1.
5. To activate the CTCSS code you set, set the first DIP switch to 1
(up). To deactivate the code, set the switch to 0 (down).
6. Replace the battery compartment cover.
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Operation
Note: You can only communicate with another transceiver that is using the same channel and/or the same CTCSS code as your trans c eiver.
1. Turn VOLUME clockwise to turn on the tran s c ei v er, turn SQ U E L C H fu lly counterclockwise until you hear a hissing sound, then adjust the vol­ume to a comfortable l ist ening level.
illus - show VOLUME being
adjusted
2. If you did not set the transceiver to use a CTCSS code, wait until there is no signal on the channel. Then turn SQUELCH clockwise until the background noise between signals stops.
3. To conserve battery power, slide HI/LO to LO. If the person you transmit to has trouble receiving your signal, slide HI/LO to HI.
illus - show HI/LO switch
4. To transmit, hold down PUSH TO TALK. Then hold the transceiver about 3 inches from your mouth and speak slowly in a normal voice. The RX/TX indicator lights red.
illus - show P U S H TO T ALK and RX/TX indicator
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illus - show SQUELCH being adjusted
5. Release PUSH TO TALK when you finish your transmission.
6. To turn off the transceiver, turn VOLUME counterclockwise until it clicks.
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Operational Hints Your transceiver’s range varies depend-
ing on factors such as position, terrain, and battery condition. Buildings absorb transmitted signals and, if they contain metal, might completely block the sig­nals. Trees and heavy cloud formations have a similar effect, though not as se­vere. If you are near a lake or the ocean, you might get excel lent range.
To ensure maximum range, operate the transceiver with the battery pack fully charged. As the voltage decreases, the range decreases.
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Care AND Maintenance
Y our RadioSh ack BTX-127 CTCSS • VHF/FM Busine ss Band T ransceiver i s an exam­ple of superior design and craftsmanshi p. The following sugg estions will hel p you care for your transc eiver so you can enjoy it for years.
• Keep the transceiver dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electr onic circuits.
• Use and store the transceiver only in normal temperature environments. Tem­perature extremes can shorten the life of electronic devices, damage batteries, and distort or mel t plastic parts.
• Keep the transceiver away from dust and dirt, which can cause premature wear of parts.
• Handle the transceiver gently and carefully. Dropping it can damage circuit boards and cases and can cause the transceiver to work improperly.
• Use only a battery pack of the required size and type. Battery packs can leak chemicals that damage your transceiver’s electronic parts.
• Wipe the transceiver with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the transceiver.
Modifying or tampering with the transceiver’s internal components can cause a mal­function and might invalidate your transceiver’s warranty and void your FCC authori­zation to operate it. If your transceiver is not performing as it should, take it to your local RadioShack store for assistance.
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Specifications
Frequency Range ................................................................... 150.775–157.740 MHz
Channe ls ............ .............. ............. .............. ............... ............ ............... .............. ...... 1
Modulation Type ...................................... ...................... ...................... .................. FM
Antenna Impedance .......... ...................... ................................ ....................... 50 Ohm
Microphone ...................................................................................... Condenser Type
Power Supply ............. ............ .............................. 7.2V 950 mAh Ni-Cd Battery Pack
Note: The supplied battery charger does not operate at temperatures below
32°F (0°C) or above 113°F (45°C).
Sensitivity at 12dB SINAD .... ............................................... ............................. 0.5 µV
Bandwidth .......... .. ............... .. ... ....... .. ............... ... .............. ... .. ....... ... ............ 12.5 KHz
Adjacent Channel Rejection .............................................................................. 45 dB
Audio Output Power ............................................. 200mW @ 8 ohm (10% distortion)
Audio Distortion .................................................................................................... 7 %
Transmit Power ............................................................................................... Hi: 2W
Lo: 600 mW
Harmon ic Emissi o n ...... .. .. ........ .. ............... .. ............... .. ... ....... .. ............... .. ........ 55 dB
Dimens io ns (HWD ) . .. ............... .. ... ....... .. ............... .. ......... 51/2 × 23/8 × 19/16 Inches
(140 × 60 × 35 mm)
Weight (with battery pack) .................................................................................. 14 oz
(0.4 kg)
Specifications are typical; individual units might vary. Specifications are subject to change and improvem ent without notice.
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Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year 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 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 CONSE­QUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states do not allow th e limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages, so the above limita­tions or exclus ions 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) c orrect the defe ct by product repair without charge for parts and labor; (b) replace the product with one of the same or similar design; or (c) refund
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
10A8 Printed in Hong Kong
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