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Se eo RadioShack. www.radioshack.com TRC-511 40-Channel Mini-Mobile CB Radio with Channel 9/19 Priority Switch Please read before using this equipment. Owner's Manual
4 ben 1705.fm Page 2 Tuesday, Jone 27, 2000 2:11 FM ne O Contents Features ... Installation ... Mounting the Microphone Holde!
Mounting the CB ... Connecting an Antenna Connecting the Microphone Using Vehicle Battery Power ... Using the CB as a Base Station Operation. Receiving Transmissions and Adjusting Squelch Transmitting .... Selecting An Emergency Channel Operational Hints .... Common Uses for a CB Personal Uses Business Uses Transmission Courtesy Using Common 10-Codes. Maximum Range Reducing Noise ... Troubleshooting ... Care and Maintenance .. Replacing the Fuse Specifications 2000 RadioShack Corporation. All Rights Reserved. RadioShack and RadioShack.com are trademarks used by RadioShack Corporation. Es & 2I-1705.fm Page 3 Tuesday, June 27, 2000 2:11 PM O Features Your RadioShack 40-Channel Mini-Mobile CB Radio is a great way to communicate with other CB radio operators. Because of its convenient compact size, you can use it al-
most anywhere. You can mount it in a vehi-
cle for mobile use, or in your home or office for use as a base station. Your CB has these advanced features. Emergency Channel Switch lets you quickly switch to channel & or 19 to monitor or report emergency situations. TX (Transmit) and RX (Receive) Indicators light to show when the CB is transmitting or receiving. Full Legal Power gives you the full range of CB channels with the maximum allowed transmit power. Up/Down Channel Selector lets you eas-
ily select a channel with the press of a but-
ton. Adjustable Squelch helps to eliminate noise between transmissions. Automatic Noise Limiter (ANL) Circ reduces impulse-type noise during reception. 5-Pin DIN Mic Connector uses five prongs to reinforce a clear connection be-
tween the mic and the receiver. Automatic Modutation prevents the transmitter signal from over-modulating and distorting.
(PLL) Frequency Synthesizer provides highly accurate and stable tuning. Crystal-Controlied Digital Tuning pro-
vides precise transmission tuning capability when selecting a channel. Features Two Ceramic Filters provide superior channel selectivity and prevent adjacent channel interference. Universal Mounting Bracket lets you mount your CB securely in your vehicle, or ona table or shelf in your home or office. External Antenna Jack lets you attach an optional antenna to your CB radia for in-
creased range.
: $ 21-1705.fm Page 4 Tuesday, June 27,2000 2:11 PM FCC INFORMATION The Federal Communications Commission
(FCC) does not require you to have a license to operate this CB radio. However, you must know Part 95 of FCC Rules. These rules ap-
ply to the operation of a Class D CB. We have provided a copy of these regulations with your CB radio. Warning: Do not open your CB radio to make any internal adjustments A CB radio is set up to transmit a regulated signal on an assigned frequency. It is against the law to alter or adjust the settings inside the unit to exceed these limitations. To be safe and sure:
* never open your CB radios cases.
* never change or replace anything in your CB radio. Your CB radio might cause TV or radio inter-
ference even when it is operating properly.
+o To determine whether your CB radio is caus-
ing the interference, turn off your CB radio. if the interference goes away, your CB is caus-
ing it. Try to eliminate the interference by:
* moving your CB radio away from the TV or radio
* contacting your local RadioShack store for help If you cannot eliminate the interference, the FCC requires that you stop using your CB ra-
dio. This device complies with Part 15 of 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 oper-
ation. Features Pe O-ar-i7os.fm Page Tuesday, tune 27, 2000 2:21 PM, O Installation MOUNTING THE MICROPHONE HOLDER You can mount the microphone holder on ei-
ther side of the CB or at another location near your receiver. Warning: Do not mount the CB microphone holder where it could damage or interfere with the operation of any passive restraint safety device (an air bag or seat belt). To mount the holder to either side of the CB, use the two supplied Vs-inch (3-mm) tapered-tip screws, plain washers, and spring washers (as shown) to secure the holder. To mount the holder near the receiver in an-
other location in your vehicle (such as a dashboard), or somewhere in your home or office, such as a nearby wall, follow these steps. 1. Using the holder as a template, mark the positions for the screw holes at the desired location. 2. At each marked position, drill a pilot hole slightly smaller than the mounting screws. Caution: Be careful not to drill into any-
thing behind the mounting surface. 3, Mount the holder using the machine screws, spring washers, plain washers and nuts. ny hy 7 Mounting Surface Note: If you cannot reach behind the mount-
ing surface to attach the nuts to the machine screws, use the two supplied '/e-inch (3-mm) tapered-tip screws and plain washers. MOUNTING THE CB The most common mounting jocation for this CB is under a vehicle's dashboard. However, if you use the CB as a base station in your home or office, you can place it on a desk, shelf, or table (see Using the CB as a Base Station on Page 7). If you are mounting the CB in a vehicle, choose a location where:
* you can easily reach the CB
+ wires and cables are clear of the vehi-
cles pedals and other moving parts
* the C8 is not directly in front of heating venis
* all wires and cables can reach their con-
nection point installation e tT 4
{SE ari10s.1m Page 6 Tuesday, June 27, 2000 2:11 PM 2, Ge Warning: If you use the CB in a vehicle, mount it securely to avoid damage to the CB or vehicle or injury to passengers. Fallow these steps to mount the CB using the supplied hardware. 1. Using the mounting bracket as a tem-
plate, mark the positions for the screw holes on the mounting surface. 2. in each marked location, drill a pilot hole slightly smatler than the two /s-inch
(5-mm) mounting screws. Caution: Be careful not to drill into objects behind the mounting surface. 3. Mount the bracket to the mounting sur-
face with the Ye-inch (5-mm) mounting screws, spring washers, plain washers, 4, Attach the CB to the mounting bracket using the two rubber washers and mounting knobs. CONNECTING AN ANTENNA There are many different types of antennas for mobile CBs, each with its own benefits. You can choose one that best fits your needs, available at your local RadioShack store. Note: [f you are using this CB as a base sta-
tion, see Using the CB as a Base Station on Page 7. When you choose an antenna, keep in mind that, for the best performance, you should mount the antenna:
* as high as possible on your vehicle, trical noise and nuts. home or building Mounting 1 * as far as possible from sources of elec-
Surface bs Note: If you cannot reach behind the mounting surface to attach the nuts on the bolts, use the /s-inch (5-mm) tapered-tip screws and plain washers to secure the bracket.
* as vertically as possible Once you choose an antenna, follow its mounting instructions. Then route the cable to the CB and connect the cable to ANTEN-
NA on the back of the CB. Antenna 6 Installation o 3 eo e a 1708.fm Page 7 Tuesday, June 27, 2000 2:11 PM Cautions:
* Avoid routing the cable next to sharp edges or moving parts which might dam-
age the cable.
* Bo not run the cable next to power cables or other radio antenna cables.
* Do not run the cable through a vehicles engine compartment or other areas that Produce extreme heat. To take advantage of your radios maximum range, adjust the antennas Standing Wave Ratio (SWR) using an SWR meter, availabie at your local RadioShack store. Follow the instructions supplied with the SWR meter and antenna to adjust your an-
tennas SWR to the lowest possible value. SWR values of 2.0:1 are generally accept-
able, with readings of 1.5:1 or lower being more desirabie. CONNECTING THE MICROPHONE 1. Press the plastic tab on the supplied microphones plug and align the 5-pin DIN microphone plug with the corre-
sponding pin holes in the CB's MIC jack. Then push the pfug into the jack. 2. Sfide the microphone onto the micro-
phone holder. To disconnect the microphone from the CB, press the plastic tab on the side of the plug, then pull out the plug. Caution: Never pult on the microphone ca-
ble. USING VEHICLE BATTERY POWER Follow these steps to connect the CB to vehi-
cle battery power. 1. Connect the red wire (with in-line fuse holder) to a point in your vehicle's fuse block that has power only when the igni-
tion is in the ACC or ON position. 2. Connect the black wire to a metal part of the vehicle's frame (chassis ground). Caution: Do not connect the black wire to a non-metallic (plastic) part, or to any part insulated from the vehicle's chassis by a non-metallic part. USING THE CB AS A BASE STATION Although this CB radio is designed mainly for mobile use, you can also use it as a base station with an AC power source. For base station installation, you need these items:
instatation oe
* a 13,8V DC power supply that supplies at least 1.5 amps {available from RadioShack) Caution: Most 13.8 DC power sup-
plies plug into a standard AC outlet to produce DC power. Before connecting your CB to a 13.8V DC power supply, read and fotlow the instructions included with the power supply.
* base station antenna (available from RadioShack)
* coaxial antenna cable and connector
(available from RadioShack) Warning: Use extreme caution when you in-
stall or remove a base station CB antenna. if the antenna starts to fall, jet it go! It could contact overhead power lines. If the antenna touches the power line, contact with the an-
tenna, mast, cable or guy wires can cause electrocution and death. Call the power com-
pany to remove the antenna. Do not attempt to remove it yourself!
Follow these steps to install the CB as a base station. eo 9 Red wire to positive termi-
: nal of DC pow:
er supply. Antenna wire. Black wire to neg-
ative terminal of DC power supply, 1, Mount the base station antenna as described in its owner's manual. 2. Connect the antenna to ANTENNA. 8 Installation 3. Connect the CB's black power wire to the negative (-) terminal on the DG power supply. 4. Connect the CBs red wire to the posi-
tive (+) terminal on the DC power sup-
Ply. 5, Connect ihe DC power supply to a stan-
dard AC outlet. Caution: To prevent damage to the CB, be pl sure you connect an antenna and the micro-
hone before you use the CB. on : ~
f Caution: To comply with FCC RF exposure \, compliance requirements, a separation dis-
tance of at least 20.0 cm must be maintained between the antenna of this device and all persons. ,
(ar Installation instructions are for satisfy-
N ing FCC RF exposure compliance. SY
ws 3 & 2i-1705.fm Page 9 Tuesday, June 27, 2000 2:11 PM. | @
O Operation Before you use your CB, you should know Note: To receive very weak signals, turn how to use it effectively and courteously. SQUELCH counterclockwise. You hear Operational Hints on Page 10 contains in- noise between transmissions, but you i formation that will help you get more enjoy- also hear weak transmissions. !
ment from your CB. RX and TX Indicators 6. To turn off the CB, turn VOLUME coun-
terclockwise until you hear it click. The channel display turns off. TRANSMITTING Note: We recommend you try receiving be-
fore you transmit. |
| VOLUME 1. Follow Steps 1-5 in Receiving Trans-
MIC Jack ul SQUELCH missions and Adjusting Squelch. 2. To transmit, press PUSH TO TALK on RECEIVING ne mepree, Te od art TRANSMISSIONS AND ony i from your mouth and speak in a normal ADJUSTING SQUELCH tone of voice. eS 1, Tum SQUELCH fully counterclockwise. 2. Turn on the CB by tuming VOLUME clockwise until it clicks. The channel dis-
play lights and the channel number PUSH TO TALK appears, 3. Set OUT CH9 CHi9 to GUT, press or ~~ on the base to select the desired channel (other than an 3. To turn off the CB, turn VOLUME coun-
emergency channel). The green RX terclockwise until you hear it click. The indicator lights when the CB is receiving channel display turns off. transmissions. 4, Adjust VOLUME to the desired listening SELECTING AN i level. EMERGENCY CHANNEL /
5, To cut out background noise between Important: Channel $ and channel 19 are transmissions, wait until there is no sig- reserved for motorist assistance and for re- 1 nal, then slowly turn SQUELCH clock- porting emergency information about acci-
wise until the background noise stops _ dents, hazardous road conditions, and so on. and the RX indicator turns off. Always give emergency messages priority. i Operation g
21-1705.fm Page {0 Tuesday, June 27, 2000 2:11 PM. To select an emergency channel (channel 9 or 19), set OUT CH CH19 to CH9 or CH19. The selected channel number flashes. To switch back to a non-emergency channel, set OUT CHS CH19 to OUT. The previously se-
lected channel number appears. Oo Operational Hints Like most activities, CB radio has its customs and courtesies. The following tips will help you get the most enjoyment from your CB. COMMON USES FOR A CB Personal Uses
* Keep in touch with home while driving to work, to the store, or to a social activity. Let your family know you are tied up in traffic, or that you will stop by the store on the way home.
+ If you are a two-car (or more) family, CB radios are great for communicating with family members while they are in their cars.
* Contact friends or neighbors find out what's happening or plan a get-
together. Ever have car trouble or run out of gas on the highway? What an assurance itis to be able io racio for assistance!
* Camping, fishing, and other sports are more fun with a CB radio. Locate a buddy or find out what's cooking back at camp. Business Uses For security officers, a CB is more than a convenience it is a must for both safety and efficiency.
* Truck drivers and delivery personnel can learn road and traffic conditions and get assistance in locating destinations. A GB radio is also good company on those long hauls.
* On construction crews, a CB radio quickly pays for itself when you are call-
ing for additional materials or coordinat-
ing the activities of different work crews. TRANSMISSION COURTESY Please follow these guidelines of radio cour-
tesy when using your CB. Wait for a pause in someone else's transmission before you ask for a break.
* ff you do not receive an answer to your call after a second attempt, sign off and wait several minutes before trying again.
* Do not hold down PUSH TO TALK when you are not talking. (This is called dead keying)
* Assist cailers with directions, information about road conditions, and any other reasonable requests. USING COMMON 10-CODES Citizens band operators and CB radio users have largely adopted the 10-codes for stan-
dard questions and answers. These codes permit faster communication and better intel-
ligibility in noisy areas. Operational Hints i 5 |4 d 2i-1705.fm Page 11 Tuesday, June 27, 2000 2:11 PM er e This table lists codes adopted by the Associ-
ated Public Safety Communications Officers Code Meaning ! i
(APCO). 10-24 | Assignment complete. Code Meaning 10-25 | Meet . 10-1 Your signal is bad. 10-26 Estimated time of arrival is 10-2 Your signal is good. 10-30 | Use caution. 10-3 Stop transmitting. !
10-31 | Pick up. Message received and under-
10-4 stood. Emergency traffic. Clear the :
_ 10-33 channel. i 10-5 Relay information to -
10-34 | What time is it?
10-6 | am busy or are you busy? rT 10-41 | Switch to Channel xx. 10-7 Out of service. 10-62 | Cannot understand. 10-8 In service. Note: Although this table lists the 10-codes meanings in the form of a statement, they 10-10 | Negative (NO). can also be phrased as questions (10-6: Are you busy?, 10-20: What is your location?). 10-9 Repeat last message. 10-14 in service. 10-12 | Stand by. MAXIMUM RANGE |
The maximum range and quality of CB radio transmissions vary depending on the follow-
ing conditions:
10-14 | Information. i
* the type and quality of antenna used Report road/weather condi-
10-13 i tions. 10-15 | Message delivered. reo * the height of the antennas mounting 10-16 Reply to message. location the higher the antenna, the better the signal's range 10-17, En route.
* the surrounding terrain mountains 10-18 | Urgent. and tall buildings limit the range 10-19 | Contact * weather conditions 10-20 | What is your location?
* the number of nearby radios operating 10-21 Call by telephone. on the same channel 10-22 | Cancel last message. * standing wave ratio (SWR) between the antenna and the CB 10-23 | Arrived at the scene. Operational Hints cea
Note: Your CB radio's transmission range is generally line-of-sight. REDUCING NOISE Because your CB is exceptionally quiet, any noise you hear is probably from an external source in your vehicle such as an alternator, another radio, or spark plugs. The transceiver uses an ANL (Automatic Noise Limiter) circuit to reduce noise. Haw-
ever, if possible, try to eliminate the noise by finding its source. You can determine the noises source by tuming off the engine and operating the CB with your vehicles ignition set to ACC {or ON}. If the noise is reduced, the problem is in your vehicles ignition or electrical system. Here are a few hints to help you reduce or eliminate such noise.
* Make all CB power and antenna wires as short as possible.
* Route the power wires away from the antenna wires.
* Be sure that the chassis ground connec-
lion is secure. Repiace old ignition wires with new, high-voltage, noise suppression wires.
+ Install noise suppressors on your spark plugs, or install new spark plugs that have built-in noise suppressors.
* If problems persist, check your altema-
tor/generatar and regulator gauges. You can reduce the noise from these sources by using bypass capacitors at the various output voltage points. Your local RadioShack store has a wide se-
lection of noise-suppression accessories. Note: Operation instructions are for satisfying FCC RF exposure compliance. f 12 Operational Hints
$7 Ti705.4m Page 13 Tuesday, June 27, 2000 2:11 PM
0 Troubleshooting Hf your CB is not working as it should, follow these suggestions to see if you can eliminate the problem. if you cannot, take the CB to your local RadioShack store for assistance. Symptom Solutions CB has trouble receiving. Rotate VOLUME clockwise so power is on. Make sure that the mic is connected and that the other connec-
tions are secure. Make sure that the antenna is connected and that the other con-
nections are secure. Check SQUELCH and adjust as needed. Switch to an active channel. Adjust VOLUME. CB has trouble transmitting. Rotate VOLUME clockwise so power is on. Make sure that the antenna is connected and that the other con-
nections are secure. Make sure that alf connections are free of corrosion. Clean and tighten, as necessary. Make sure the mic connector is not loose. Firmly press the connec-
tor into the MIC jack. Switch to an active channel. Make sure that PUSH TO TALK is fully pressed. Radio does not work at all. Make sure that the CB is connected to power and that all connec-
tions are secure. Make sure that the mic is securely connected. Make sure that the antenna is securely connected, Check the fuse and replace it, if necessary. See Replacing the Fuse on Page 14. Cannot select a channel. Set OUT CHS CH19 to OUT. Release PUSH TO TALK. Troubleshooting 73 a S 705.fm Page 14 Tuesday, June 27, 2000 2:11 PM as u
? O Care and Maintenance To enjoy your RadioShack 40-Channel Mini-
Mobile CB Radio for a long time:
+ Keep the CB dry. If it gets wet, wipe it dry immediately.
* Use and store the CB only in normal temperature environments.
* Handle the CB gently and carefully. Do not drop it.
+ Keep the CB away from dust and dirt.
+ Wipe the CB with a damp cloth occa-
sionally to keep it looking new. Modifying or tampering with the CB's internal components can cause a malfunction and might invalidate its warranty and void your FCC authorization to operate it. If your CB is not performing as it should, take it to your lo-
cal RadioShack store for assistance. REPLACING THE FUSE The CB's 2-A in-line fuse helps protect your CB (and vehicie) from power surges and short circuits. Replace a blown fuse with a 2-
A, slow-biow glass fuse, available at your lo-
cal RadioShack store. Caution: Do not use a fuse with ratings other than those specified here. Doing so might damage your CB. Follow these steps to check and replace the fuse. 1. Make sure the power source and CB are both off. 2. Hold the fuse holder by both ends, push the ends together, twist one end coun-
terclockwise, then pull them apart. 3. Remove the old fuse and inspect its condition. If it is not blown, reinsert it. If it is blown, insert a new one of the same type and rating. 4. Push the fuse holder ends together and twist one end clockwise. 4 Care and Maintenance
- aa
& | 21-1705.fm Page 15 Tuesday, June 27, 2000 2:11 PM. & | e@
O Specifications Receiver Frequency Caverage Sensitivity ... Squelch Sensitivity ... Frequency Response .. Adjacent Channel Selectivity .. Audio Output Power Cross Modulation
. All 40 channels (class D) 26.965-27.405 MHz
.. 0.5 uV or better for 10 dB S/N
. From 0.5 uV to 1 mV adjustable (nominal) 6 dB 450 H2-2.5 kHz
.. 45 dB at 10 kHz Transmitter Frequency Coverage . All 40 channels (class D) 26.965-27.405 MHZ Frequency Tolerance 2100 Hz (nominal) Output Power 3.6 W (nominal) Modulation Type Ag 502
~67 dB or better 90%
1.1 Amps with no modulation; 1.5 Amps with 80% modulation 13.8V DC, negative ground Antenna Impedance Spurious Emission Modulation Capability . Current Drain Power Requirements General Dimensions 87a x 41a x 1% in
(150 x 108 x 35 mm) Weight (with microphone) .. 15.402
(437 g}
Specifications are typical, individual units might vary. Specifications are subject to change and improve-
ment without notice. Specifications 15
& | 21-1705.fm Page 16 Tuesday, June 27, 2000 2:11 PM 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 JF RadioShack HAS BEEN AD-
VISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states de nat allow limitations on how long an implied warranty lasts or the exclusion or limita-
i 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 sepair without charge for parts and labor, () 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 ar 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 We Service What We Seif 21-1705 AQOO14AAA1 i RadioShack Corporation O6A00 I Fort Worth, Texas 76102 Printed in China