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Owner’s Manual
Cat. No. 21-1812
Two-Way
Personal Radio
n No License Required!
n 14 Channels
n Quiet Code Feature
n Backlit Display
n Water and Shock
Resistant for Sport Use
n 300 mW Output Power
n Call Button
n Auto Squelch
n Built-In Charger
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PREPARATION
INSTALLING BATTERIES
Your radio uses three AA batteries (not
supplied) for power. We recommend alka-
line batteries, such as RadioShack Cat. No.
23-552. You can also use rechargeable
nickel-cadmium batteries (Cat. No. 23-125
or 23-149). Before you use nickel-cadmium
batteries, you must charge them (see
“Charging Nickel-Cadmium Batteries” on
Page 4).
Follow these steps to install batteries.
1. Be sure the radio is off, then pull down
the latch at the bottom of the radio and
remove the battery compartment
cover.
2. Use a pointed object such as a pen to
CHRG
set
inside the compartment to
OFF
ON
(for alkaline batteries) or
(for
nickel-cadmium batteries).
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Warning: Never set CHRG to ON if
you use non-rechargeable batteries.
Non-rechargeable batteries can get
hot or explode if you try to recharge
them.
3. Install the batteries as indicated by the
polarity symbols (+ and –) inside the
compartment. Then replace the cover.
Caution: Do not mix old and new bat-
teries or different types of batteries.
The radio’s range decreases as battery
power decreases. For the longest range,
keep fresh batteries installed in the radio.
When
flashes, replace (or recharge)
the batteries.
Charging Nickel-Cadmium
Batteries
You can recharge nickel-cadmium batter-
ies while they are in the radio. Set CHRG to
ON, install the nickel-cadmium batteries in
the radio, and connect an external AC or
DC adapter to the radio’s DC 9V jack (see
“Connecting an AC Adapter” on Page 6 or
“Connecting a DC Adapter” on Page 7).
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Warning: Do not connect either adapter to
the radio if non-rechargeable batteries
(such as alkaline batteries) are installed
and CHRG is set to ON, or if you are unsure
of the switch’s position. Non-rechargeable
batteries can get hot or explode if you try to
recharge them.
Before using nickel-cadmium batteries for
the first time, charge them for at least 10
hours to bring them to a full charge. Dis-
charged batteries take about 10 to 18 hours
to fully recharge. If you use the radio while
the batteries are charging, charging takes
longer.
Notes:
• Nickel-cadmium batteries last longer
and deliver more power if you occa-
sionally let them fully discharge by
using the radio until
flashes.
• To prevent damage to nickel-cadmium
batteries, never charge them in an
area where the temperature is above
113°F (45°C) or below 40°F (4.4°C).
Important: At the end of a rechargeable
battery’s useful life, it must be recycled or
disposed of properly. Contact your local,
county, or state hazardous waste manage-
ment authorities for information on recy-
cling or disposal programs in your area.
Some options that might be available are:
municipal curb-side collection, drop-off
boxes at retailers such as your local Ra-
dioShack store, recycling collection cen-
ters, and mail-back programs.
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Connecting an AC Adapter
You can charge the radio from a standard
AC outlet using an optional AC adapter
(such as Cat. No. 273-1665).
Warning: Do not use an AC adapter’s po-
larized plug with an extension cord, recep-
tacle, or other outlet unless the blades can
be fully inserted to prevent blade exposure.
Cautions:
• The recommended AC adapter sup-
plies 9 volts and delivers at least 300
milliamps. It has a barrel plug with a
center negative tip that correctly fits
the radio’s DC 9V jack. Using an
adapter that does not meet these
specifications could damage the radio
or the adapter.
• To protect your radio and AC adapter,
always plug the adapter into the radio
before you plug it into the AC outlet,
and always unplug the adapter from
the AC outlet before you unplug it
from the radio.
• Make sure CHRG inside the battery
compartment is set to ON and nickel-
cadmium batteries are installed (see
“Installing Batteries” on Page 3).
1. Plug the adapter’s 3.4 mm outside
diameter/1.3 mm inside diameter bar-
rel plug into your radio’s DC 9V jack.
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2. Plug the other end of the adapter into
a standard AC outlet. The CHARGE
indicator lights.
Connecting a DC Adapter
You can charge the radio from your vehi-
cle’s cigarette-lighter socket using an op-
tional DC adapter, such as Cat. No. 270-
1560 or 273-1810.
Cautions:
• The recommended DC adapter sup-
plies 9 volts and delivers at least 300
milliamps. It has a barrel plug with a
center negative tip that correctly fits
the radio’s DC 9V jack. Using an
adapter that does not meet these
specifications could damage the radio
or the adapter.
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• To protect your vehicle’s electrical sys-
tem, always plug the adapter into the
radio before you plug it into your vehi-
cle’s cigarette-lighter socket. Always
unplug the adapter from the vehi-
cle’s cigarette-lighter socket before
you unplug it from the radio.
• Make sure CHRG inside the battery
compartment is set to ON and nickel-
cadmium batteries are installed (see
“Installing Batteries” on Page 3).
1. Set the adapter’s voltage switch to 9V.
2. Connect the 3.4 mm outer diameter/
1.3 mm inner diameter tip to the
adapter cord, matching TIP to –.
3. Plug the adapter’s barrel plug into
your radio’s DC 9V jack.
4. Plug the other end of the adapter into
your vehicle’s cigarette-lighter socket.
The CHARGE indicator lights.
Note: If the radio does not charge properly,
unplug the adapter from the cigarette-light-
er socket and clean the socket to remove
ashes and debris.
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ATTACHING THE BELT
CLIP
Use the supplied
belt clip to take your
radio along when
you are on the go.
Use a coin or screw-
driver to screw the
belt clip to the radio,
then slide the clip
over your belt or
waistband.
CONNECTING AN
OPTIONAL MICROPHONE/
SPEAKER
To use the radio private-
ly, connect an optional
headset with micro-
phone (such as Cat. No.
19-312) or microphone
and earphone communi-
cation headset (such as
Cat. No. 19-316) into the
SP and MIC jacks.
This connection automatically disconnects
the internal speaker and the PTT button.
Or, you can connect a mono earphone
(such as Cat. No. 33-175) into the SP jack
and use the radio’s PTT button as usual.
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OPERATION
VOL/OFF
PTT
MON
CALL
QUIET
CHANNEL
LIGHT/LOCK
CONTROLS
VOL/OFF —
turns on or off the radio and ad-
justs the volume.
PTT —
To talk, hold down this button and
wait about 1 second, then speak into the
microphone. The TX indicator lights. Re-
PTT
lease
when you finish speaking.
CALL —
sends a paging tone to all radios
Important:
tuned to the same frequency. (
CALL
Do not hold down
for more than 10
seconds. The FCC does not allow you to
send a continuous tone for more than 10
seconds at a time on FRS frequencies.)
MON —
turns off the auto squelch (see “Au-
to-Squelch” on Page 13). To turn auto
squelch back on, release this button.
QUIET —
sets the quiet code and turns on
or off the quiet feature (see “Using Quiet
Codes” on Page 12).
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CHANNEL
raise and lower the channel number.
(Up) and
(Down) —
LIGHT/LOCK — lights the display for 5 sec-
onds and locks CHANNEL
/
,
CALL, LIGHT, and QUIET to prevent acci-
dental operation. (It does not affect MON.)
To turn it on or off, hold down LIGHT/LOCK
until
appears or disappears.
DISPLAY
AND
INDICATORS
1–24— shows the selected channel (1–
14) or quiet code (17–24).
— flashes when the batteries are low.
— appears when you lock the key-
pad.
BUSY— appears when you receive.
QUIET— appears when the quiet mode
(CTCSS) is set. The indicator flashes while
you are selecting the quiet (CTCSS) code.
TX — lights when you transmit a message
or press CALL.
CHARGE — lights when batteries are
charging.
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USING QUIET CODES
This radio uses quiet (CTCSS) codes to
screen out unwanted conversations, even if
someone is transmitting nearby on the
same channel. When a quiet code is set,
the radio sends it every time PTT or CALL is
pressed and only responds to signals that
have the same code. Radios you plan to
use together must be set to the same code.
This radio has these quiet (CTCSS) codes.
Channel Frequency Channel Frequency
17
18
19
20
118.8 Hz
123.0 Hz
127.3 Hz
131.8 Hz
21
22
23
24
136.5 Hz
141.3 Hz
146.2 Hz
151.4 Hz
To set the radio to use one of the codes:
1. Hold down QUIET until the QUIET
indicator flashes.
2. While the indicator flashes, repeatedly
press CHANNEL
or
to
select the quiet code.
3. Press QUIET again. QUIET stays lit
and the quiet (CTCSS) code is set.
To turn off the quiet feature, press QUIET so
QUIETdisappears. To turn it on and use
the previously set code again, hold down
QUIET so QUIETreappears.
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AUTO-SQUELCH
Your radio has auto-squelch, which means
you won’t hear anything on a channel un-
less someone is transmitting nearby on the
same channel. To turn off auto-squelch (so
you can hear weaker, distant transmis-
sions), hold down MON (monitor). Release
MON to turn auto-squelch back on.
AUTO POWER SAVE
The automatic power save feature extends
battery life by reducing the power the radio
uses until it receives a signal or you press a
key. Because the receiving radio might be
in this mode, wait about 1 second after
pressing PTT to allow the receiving radio to
come to full power before speaking into the
microphone.
FCC INFORMATION
Important:
Do not open your radio to
make any internal adjustments. Your radio
is set up to transmit a regulated signal on
an assigned frequency. It is illegal to alter
or adjust the settings inside the radio to
exceed those limitations. Any adjustments
made to your radio must be made by a
qualified technician using the proper test
equipment. To be safe and sure:
• Never open your radio’s case.
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• Never change or replace anything in
your radio except the batteries.
Your radio might cause TV or radio inter-
ference even when it is operating properly.
To determine whether your radio is caus-
ing the interference, turn it off. If the inter-
ference goes away, your radio is causing
it. Try to eliminate the interference by:
• moving your radio away from the
receiver
• calling your local RadioShack store for
help
Using your radio as described in this man-
ual exposes you to RF energy well below
the FCC’s recommended limits.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may
not cause harmful interference, and (2) this
device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Modifying or tampering with the radio’s
internal components can cause a malfunc-
tion and might invalidate the radio’s war-
ranty and void your FCC authorization to
operate it. If your radio is not performing as
it should, take it to your local RadioShack
store for assistance.
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SPECIFICATIONS
Output Power ..................... 300 mW ERP
Battery Life (Alkaline) ............... 120 Hours
(at Standby)
Battery Power:
Alkaline................................. 4.5 VDC
Ni-Cd .................................... 3.6 VDC
Frequencies:
Frequency
(MHz)
Frequency
(MHz)
Channel
Channel
1
2
3
4
5
6
7
462.5625
462.5875
462.6125
462.6375
462.6625
462.6875
462.7125
8
467.5625
467.5875
467.6125
467.6375
467.6625
467.6875
467.7125
9
10
11
12
13
14
Specifications are typical; individual units
might vary. Specifications are subject to
change and improvement without notice.
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Limited Ninety-Day Warranty
This product is warranted by RadioShack against manufactur-
ing defects in material and workmanship under normal use for
ninety (90) days from the date of purchase from RadioShack
company-owned stores and authorized RadioShack franchi-
sees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-
dioShack MAKES NO EXPRESS WARRANTIES AND ANY
IMPLIED WARRANTIES, INCLUDING THOSE OF MER-
CHANTABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE, 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 CUS-
TOMER 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 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 CONSE-
QUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an im-
plied warranty lasts or the exclusion of incidental or conse-
quential 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, unless otherwise provided by law: (a) correct the
defect by product repair without charge for parts and labor; (b)
replace the product with one of the same or similar design; or
(c) refund the purchase price. All replaced parts and products,
and products on which a refund is made, become the property
of RadioShack. New or reconditioned parts and products may
be used in the performance of warranty service. Repaired or
replaced parts and products are warranted for the remainder
of the 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, Dept. W, 100 Throckmorton
St., Suite 600, Fort Worth, TX 76102
We Service What We Sell
3/97
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
10A8N
Printed in Malaysia
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