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Radio Shack
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2101706
User Manual
24 pgs549.69 Kb0

Radio Shack 2101706 User Manual

40 Channel Mobile CB
with Digital Compass, and EL Backlit LCD Display
Owner’s Manual
Please read before using this equipment.
Features
Your RadioShack 40 Channel Mobile CB is a great way to communicate with other CB radio operators. You can mount it in a vehicle for mobile use, or in your home for use as a base station.
Your CB has these advanced features:
LCD display with EL backlight on display and controls
operating status at a glance and helps you easily see the display and controls when you use the CB at night.
Digital Compass
road.
Emergency Channel One Touch Access
— lets you quickly switch to Channel 9 or 19 so you can monitor or report emergency situations.
3 Channel Memories
access your favorite channels.
Last Channel Recall (RCL)
quickly recall the last channel used.
Dual Channel Controls
channel from the transceiver or the microphone.
RF Gain Control
receiver’s gain to match the strength of the signal.
Phase-Locked Loop (PLL) Frequency Synthesizer
stable tuning.
Two Built-In Ceramic Filters
superior channel selectivity and freedom from adjacent channel interference.
— lets you see the CB’s
— aids navigation on the
— let you easily
— Lets you
— let you tune the
— lets you adjust the
— provides highly accurate and
— ensure
2002 RadioShack Corporation.
©
RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.
All Rights Reserved.
Automatic Modulation Control
the transmitter signal from over-modulating and distorting.
Automatic Noise Limiter
impulse-type noises while receiving.
Built-In PA (Public Address) Amplifier
lets you use your CB as a public address system when you add an optional PA speaker.
Universal Mounting Bracket
mount your CB securely in your vehicle.
To use this CB, you must connect a
Note:
mobile or base station antenna. Your local RadioShack store has a wide variety of antennas. For more information, see “Connecting an Antenna” on Page 4.
— prevents
— reduces
—
— lets you
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 proper operation of a Class D citizen’s band transceiver. We enclosed a copy of Part 95 with your CB radio.
Warning:
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 radio’s case.
• Never change or replace anything in your CB radio.
FCC Rules
Do not open the CB radio to make
. It explains the
2
Features
Your CB radio might cause TV or radio interference even when it is operating properly. To determine whether your CB is causing the interference, turn off your CB. If the interference goes away, your CB is causing it. Try to eliminate the interference by:
• moving your CB away from the receiver
Installation
ATTACHING THE MICROPHONE HOLDER
You can attach the microphone holder to the right side of the transceiver or to another location in your vehicle.
To attach the holder to the transceiver, secure the holder to the right side using the supplied 3 mm screws and lock washer.
To attach the holder to another location in the vehicle, such as the dashboard, follow these steps.
1. Using the holder as a template, mark th e positions for the mounting screw holes at the desired location.
2. At each marked position, drill a small starter hole.
Caution:
anything behind the mounting surface.
3. Attach the holder at the mounting location using the supplied machine
Be careful not to drill into
• contacting your local RadioShack store for help
This device complies with Part 15 of 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.
screws, spring washers, plain washers, and nuts.
If you cannot reach behind the
Note:
mounting surface to attach the nuts on the machine screws, use the supplied 3 mm plain washers and self-tapping screws.
MOUNTING THE TRANSCEIVER
The most common mounting location for this CB is under a vehicle’s dashboard. However, if you plan to use the CB as a base station, you can place it on a desk, shelf, or table (see “Using the Transceiver as a Base Station” on Page 6).
If you are mounting the CB in a vehicle, choose a location where:
• You can easily reach the CB.
Installation
• Wires and cables are clear of the vehicle’s pedals or other moving parts.
3
• The CB is not directly in front of heating vents.
• All wires and cables can reach their connection points.
Warnings:
• If you use the CB in a vehicle, mount it securely to avoid damage to the CB or vehicle or injury to anyone in the vehicle during sudden starts or stops.
• Do not mount the CB where it could damage or interfere with the operation of any passive restraint safety device (an airbag or seat belt).
Follow these steps to mount the CB using the supplied hardware.
1. Using the mounting bracket as a template, mark the positions for the screw holes on the mounting surface.
2. In each marked location, drill a small starter hole.
Caution:
objects behind the mounting surface.
3. Mount the bracket to the mounting surface with the supplied 5 mm bolts, spring washers, plain washers, and nuts.
Be careful not to drill into
tapping screws and plain washers to secure the bracket.
4. Peel the backings off the adhesive on the back of the supplied rubber washers and attach the washers to the mounting holes on the CB. then attach the CB to the mounting bracket using the mounting knobs.
CONNECTING AN ANTENNA
There are many different types of CB antennas for mobile CBs. Each type has its own benefits, so choose the one that best meets your needs. Your cal RadioShack store sells a wide variety of antennas.
If you are using this CB as a base
Note:
station, see “Using the Transceiver as a Base Station” on Page 6.
When you choose an antenna, keep in mind that, for the best performance, you should mount the antenna:
• as high as possible on the vehicle
If you cannot reach behind the
Note:
mounting surface to attach the nuts on the bolts, use the supplied 5 mm self-
4
• as far as possible from sources of electrical noise
• vertically
Once you choose an antenna, follow its mounting instructions. Then route the cable to the transceiver and connect the cable to
Installation
the
ANTENNA
jack on the back of the
transceiver.
Antenna
Cautions:
• Avoid routing the cable next to sharp edges or moving parts, which might damage the cable.
• Do not run the cable next to power cables or other radio antenna cables.
• Do not run the cable through the engine compartment or other areas that produce extreme heat.
To take advantage of your radio’s maximum range, adjust the antenna’s Standing Wave Ratio (SWR) using an SWR meter (not supplied).
Follow the instructions supplied with the SWR meter and antenna to adjust your antenna’s SWR to the lowest possible value. SWR values of 2.0:1 are generally acceptable, with readings of 1.5:1 or lower being more desirable.
To disconnect the microphone from the transceiver, press the tab on the side of the plug. Then pull out the plug.
Caution:
Never pull on the microphone
cable.
CONNECTING AN EXTERNAL SPEAKER
You can connect your transceiver to an external CB speaker, so you can hear an incoming call when you are outside your vehicle, or use the CB as a PA system.
Connecting a CB Speaker
The external speaker you use with the transceiver should have an impedance of 8 ohms and be able to handle 10 watts of power. The speaker cable must have a inch plug.
To connect the external speaker to the transceiver, insert the speaker cable’s plug into
EXT SPKR
Note:
When you connect an external
on the back of the CB.
speaker, the CB’s internal speaker disconnects.
Connecting a PA Speaker
The PA speaker should have an impedance of 8 ohms and be able to handle 10 watts of power. The speaker cable must have a inch plug.
1
/8-
1
/8-
CONNECTING THE MICROPHONE
Align the tab on the side of the supplied microphone’s plug with the notch in the microphone jack (on the side of the transceiver). Then insert the plug into the jack.
Slide the microphone onto the microphone holder.
If your PA speaker meets the other specifications but does not already have a
8-inch plug, you can connect it using a phono
plug-to-wire cable, available at your local RadioShack store.
To connect the PA speaker to the transceiver, insert the speaker cable’s plug into
Installation
PA SPKR
on the back of the CB.
1
/
5
To avoid acoustic feedback, the
Note:
speaker should be at least 6 feet from the CB. If you experience feedback, avoid keying the microphone until you have moved the speaker away from the CB.
CONNECTING THE COMPASS
USING VEHICLE BATTERY POWER
Follow these steps to connect the transceiver to vehicle battery power.
Insert the compass cable’s plug into on the back of the CB. Do not place the compass cable near the DC cord or the antenna cable.
SENSOR
CONNECTING AN OPTIONAL MICROPHONE/ EARPHONE
You can connect an optional microphone or earphone with a and a 1/8-inch (3.5mm) plug to the jacks on the front of the CB.
To connect a headset with Voice Activated operation, we recommend you check the response sensitivity of the VOX circuit before installation. Different Voice Activation devices provide different performance results.
Traffic Safety
Do not use an earphone with your transceiver when operating a motor vehicle 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 transceiver be very careful. Do not listen to a continuous broadcast. Even though some earphones/ headphones let you hear some outside sounds when listening at normal volume levels, they still can present a traffic hazard.
3
/32-inch (2.5mm) mini plug
MIC/EAR
Black
1. Connect the red wire (with the inline fuse holder) on the back of the transceiver to a point in your vehicle’s fuse block that has power only when the ignition is in the ACC (accessory) or ON position.
2. Connect the black wire to a metal part of the vehicle’s frame (chassis ground).
Caution:
to a non-metallic (plastic) part, or to any part insulated from the vehicle’s chassis by a non-metallic part.
Do not connect the black wire
USING THE TRANSCEIVER AS A BASE STATION
Although this transceiver 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:
• 12-volt DC power supply that can supply at least 2 amps
Caution:
supplies plug into a standard AC outlet to produce DC power. Before connecting your CB to a 12-volt DC
Most 12-volt DC power
Red
6
Installation
power supply, read and follow the instructions included with the power supply.
• base station antenna.
• coaxial antenna cable and connectors, available at your RadioShack store.
For the best performance, place the antenna as far as the cable length.
Caution:
To prevent damage to the CB, be sure you connect an antenna and the microphone before you use your CB.
Follow these steps to install the CB as a base station.
1. Mount the base station antenna as described in its owner’s manual.
Warning:
Use extreme caution when you install or remove a base station CB antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to remove the antenna. Do not attempt to do so yourself!
3. Connect the transceiver’s black power wire to the negative (–) terminal on the DC power supply.
4. Connect the transceiver’s red wire (with the in-line fuse) to the positive (+) terminal on the DC power supply.
5. Connect the DC power supply to a standard AC outlet.
Caution:
To comply with the FCC RF Exposure compliance requirements, a separation distance of at least 20.0 cm must be maintained between this device’s antenna and all persons.This device must transmit with a source­based time-averaging duty factor not exceeding 50%.
Installation and Operation
Note:
instructions are for satisfying FCC RF Exposure compliance.
2. Connect the antenna to
ANTENNA
the back of the CB.
on
Installation
7
Operation
Before you use your CB, you should know how to use it effectively and courteously. “Transmission Courtesy” on Page 10 contains information that will help you get more enjoyment from your CB.
RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH
1. Set
PA/MON/CB
2. Turn
3. Turn
4. Turn on the transceiver by turning
5. Rotate the channel selector, or
6. Adjust
7. To cut out background noise between
SQUELCH
RF GAIN
VOLUME
segments appear briefly. Then the channel and
repeatedly press (or hold down)
on the microphone until the
DOWN
desired channel appears.
VOLUME
listening level.
transmissions, wait until there is no signal, then slowly turn clockwise until the background noise stops.
Notes:
• To receive very weak signals, turn
SQUELCH
hear noise between transmissions, but you also hear weak transmissions (those not strong enough to break through a higher squelch setting).
to CB.
fully counterclockwise.
fully clockwise.
clockwise until it clicks. All LCD
HN
appear.
or
UP
to a comfortable
SQUELCH
counterclockwise. You
counterclockwise to reduce the receiver’s sensitivity.
to
To turn off the CB, turn it clicks.
VOLUME
OFF
until
TRANSMITTING
Note:
we recommend you try receiving
before you transmit. Follow Steps 1–7 in “Receiving
Transmissions and Adjusting Squelch.”
to
on the
OFF
until
To transmit, hold down microphone. JN appears. Hold the microphone 2–3 inches from your mouth and speak in a normal tone of voice, then release
PUSH TO TALK
disappears. To turn off the CB, turn
it clicks.
when you finish. JN
PUSH TO TALK
VOLUME
SELECTING THE EMERGENCY CHANNEL
Important:
reserved for motorist assistance and for reporting emergency information about accidents, hazardous road conditions, and so on. Always give emergency messages priority on Channel 9 or Channel 19.
To select the emergency channel 9, press the channel selector once. Press again to select channel 19. more time to return to the previous selected channel.
You can also select Channel 9 or 19 by turning the channel selector or pressing or
DOWN
Channel 9 and Channel 19 are
/
or '/ flashes. Press one
on the microphone.
UP
• If you experience interference from nearby frequencies, turn
8
RF GAIN
Operation
To select another channel, rotate the channel selector or press
UP
or
DOWN
.
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