Samsung Radio 21 1840 User Guide

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Cat. No. 21-1840  
OWNER’S MANUAL  
Please read before using this equipment.  
Personal FM  
Radio  
14 Channels  
n
Call Button  
n
Automatic Squelch  
n
Monitor  
n
Headset Jack for Handsfree Com-  
munication  
n
Transmit/Battery Indicator  
n
 
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PREPARATION  
INSTALLING BATTERIES  
Your radio uses three AA batteries for power. For the  
longest life, we recommend alkaline batteries (avail-  
able from your local RadioShack store). You can also  
use rechargeable nickel-cadmium batteries (such as  
Cat. No. 23-325) and recharge them in the radio us-  
ing an optional AC adapter (such as Cat. No. 273-  
1663).  
Follow these steps to install batteries.  
ALKALINE/  
Ni-Cd  
1. Turn the radio off, remove the screw from the  
belt clip, then slide off the battery compartment  
cover.  
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2. Set the switch inside the compartment to ALKA-  
LINE (for alkaline batteries) or Ni-Cd (for  
rechargeable nickel-cadmium batteries).  
Caution: Do not use alkaline batteries with the  
switch set to Ni-Cd.  
3. Install the batteries, matching the polarity sym-  
bols (+ and –) inside the compartment.  
4. Replace the cover.  
Caution: Do not mix old and new batteries, different  
types of batteries (standard, alkaline, or recharge-  
able), or rechargeable batteries of different capaci-  
ties.  
The radio’s range decreases as the battery power  
decreases. To ensure maximum range, keep fresh  
batteries in the radio.  
When the TX/LO BATT (Transmit/Low Battery) indi-  
cator flashes when you are not holding down PTT or  
pressing CALL, replace the batteries.  
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Recharging Nickel-Cadmium Batteries  
If you use rechargeable nickel-cadmium batteries,  
you can recharge them in the radio using an option-  
al AC adapter (such as Cat. No. 273-1663). Be sure  
the switch inside the battery compartment is set to  
Ni-Cd.  
Caution: You must use an AC adapter that supplies  
6 volts DC and delivers at least 700 mA. Its center  
tip must be set to positive and its plug must fit the ra-  
dio’s CHRG jack. The recommended adapter meets  
these specifications. Using an adapter that does not  
meet these specifications could damage the radio or  
the adapter.  
1. Attach the adapter’s 3.4 mm outer diameter/1.3  
mm inner diameter barrel plug to the adapter  
and set TIP to positive (+).  
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2. Connect the charger’s barrel plug to the radio’s  
CHRG jack and plug its other end into a standard  
AC outlet  
3. Complete charging takes about 15 hours. When  
charging is complete, unplug the AC adapter  
from the AC outlet and disconnect it from the  
.
CHRG jack  
SETTING THE QUIET CODE AND  
CHANNEL  
Use the 4-digit DIP switches inside the battery com-  
partment to set the quiet code and channel. The left  
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array of switches controls the quiet code, while the  
right array controls the channel.  
Note: You can only communicate with another radio  
which uses the same channel and Quiet code as  
your radio.  
Frequency  
(Hz)  
Dip Switch  
Setting  
QUIET Code  
without  
QUIET  
0000  
12  
13  
14  
100.0  
103.5  
107.2  
0001  
0010  
0011  
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Frequency  
(Hz)  
Dip Switch  
Setting  
QUIET Code  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
110/9  
114.8  
118.8  
123.0  
127.3  
131.8  
136.5  
141.3  
146.2  
151.4  
156.7  
162.2  
0100  
0101  
0110  
0001  
0010  
0011  
0100  
0101  
0110  
0111  
1000  
1001  
Frequency  
(MHz)  
Dip Switch  
Setting  
Channel  
1
1
462.5625  
462.5625  
0000  
0001  
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Frequency  
(MHz)  
Dip Switch  
Setting  
Channel  
2
3
462.5875  
462.6125  
462.6375  
462.6625  
462.6875  
462.7125  
467.5625  
467.5875  
467.6125  
467.6375  
467.6625  
467.6875  
467.7125  
467.7125  
0010  
0011  
0100  
0101  
0110  
0111  
1000  
1001  
1010  
1011  
1100  
1101  
1110  
1111  
4
5
6
7
8
9
10  
11  
12  
13  
14  
14  
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USING THE RADIO  
VOLUME  
Rotate  
to turn the radio on and off and ad-  
just the volume. A tone sounds when you turn it on.  
To talk, hold down the headset’s PTT (push to talk)  
button. Speak into the microphone when the TX/LO  
BATT indicator lights. When you finish speaking, re-  
lease PTT.  
The TX/LO BATT indicator lights when you transmit  
and flashes when the battery is low.  
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To hear everything happening on a channel (includ-  
ing weak transmissions), hold down MON. Release  
MON to turn auto-squelch back on.  
To send a page, press  
. The TX/LO BATT indi-  
CALL  
cator lights and a tone sounds on all radios within  
range that are tuned to the same frequency as your  
radio.  
Important: The FCC does not allow you to send a  
continuous tone for more than 15 seconds at a time  
on FRS frequencies. Do not hold down CALL for  
longer than 15 seconds.  
For hands-free operation, connect the supplied  
3
1
headset’s /32-inch mini plug and /8-inch plug to the  
receiver’s MIC/SPK jacks. Set VOX to HI (for normal  
conditions) or LO (if you are in a noisy environment.  
The radio automatically transmits when you speak  
and is set to receive when you are not speaking.  
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CARE AND MAINTENANCE  
To enjoy your Personal FM Radio for a long time:  
• Keep the radio dry. If it gets wet, wipe it dry  
immediately.  
• Use and store the radio only in normal tempera-  
ture environments.  
• Handle the radio gently and carefully. Don’t drop  
it.  
• Keep the radio away from dust and dirt.  
• Wipe the radio with a damp cloth occasionally to  
keep it looking new.  
Modifying or tampering with the radio’s internal  
components can cause a malfunction and inval-  
idate its warranty. If your radio is not performing  
as it should, take it to your local RadioShack  
store for assistance.  
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FCC INFORMATION  
Important:  
Do not open your radio to make any in-  
ternal adjustments. Your 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 radio to exceed those limitations. Any adjust-  
ments made to your radio must be made by a quali-  
fied technician using the proper test equipment. To  
be safe and sure:  
• Never open your radio’s case.  
• Never change or replace anything in your radio  
except the batteries.  
Your radio might cause TV or radio interference even  
when it is operating properly. To determine whether  
your radio is causing the interference, turn it off. If the  
interference 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 manual ex-  
poses you to RF energy well below the FCC’s recom-  
mended limits.  
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This device complies with Part 15 of the 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 re-  
ceived, including interference that may cause undes-  
ired operation.  
Modifying or tampering with the radio’s internal com-  
ponents can cause a malfunction and might invali-  
date the radio’s warranty and void your FCC  
authorization to operate it. If your radio is not per-  
forming as it should, take it to your local RadioShack  
store for assistance.  
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SPECIFICATIONS  
Transmitter  
RF Output Power ............................... 200 mW ERP  
General  
Number of Channels ............................................ 14  
Operating Temperature Range ........................ × C/F  
Weight with Batteries ...................................... lbs/kg  
Dimensions (HWD) ................... 13/16 ¥ 23/8 ¥ 315/16 in  
(100 ¥ 65 ¥ 30 mm)  
Number, Size, and Type of Batteries ............... 3 AA  
Battery Life:  
Alkaline .................................. 24 Hours (2500 mAh)  
Ni-Cd ....................................... 11 Hours (600 mAh)  
External Jack  
Microphone Impedance ............................................  
Speaker Impedance .................................................  
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Specifications are typical; individual units might vary.  
Specifications are subject to change and im-prove-  
Limited Ninety-Day Warranty  
mproduct
This  
is warranted by RadioShack against manufacturing defects in material and  
workmanship under normal use for ninety (90) days from the date of purchase from Ra-  
dioShack company-owned stores and authorized RadioShack franchisees and dealers. EX-  
CEPT 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, INCI-  
DENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED  
OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclu-  
sion 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 Ra-  
dioShack 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 re-  
fund 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 prod-  
ucts 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 or abnormal usage, failure to follow instructions, improper  
installation or maintenance, alteration, lightning or other incidence of excess voltage or cur-  
rent; (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, 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  
12A98  
Printed in Hong Kong  
 

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