Ricoh Two Way Radio 21 1812 User Guide

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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  
124shows the selected channel (1–  
14) or quiet code (17–24).  
flashes when the batteries are low.  
appears when you lock the key-  
pad.  
BUSYappears when you receive.  
QUIETappears 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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