43-222b.fm Page 1 Thursday, August 12, 1999 3:55 PM
Cat. No.
43-222B
OWNER’S MANUAL
Please read before using this equipment
Two-Station Wired
Intercom System
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43-222b.fm Page 3 Thursday, August 12, 1999 3:55 PM
Efficient Speaker/Microphone — gives you clear
sound with minimal background noise.
Note: You need one 9-volt battery (not supplied) to
power your intercom system.
3
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43-222b.fm Page 4 Thursday, August 12, 1999 3:55 PM
INSTALLATION
INSTALLING A BATTERY
Your intercom system uses one 9-volt battery for
power. For the best performance and longest life,
we recommend an alkaline battery, such as Ra-
dioShack Cat. No. 23-553.
Caution:
Use only a fresh battery of the required
size and recommended type.
1. With the master station (the unit with the vol-
ume control) face up, open its case by inserting
a coin into the slot between the top and bottom
of the case and twisting the coin. Lift off the top
case and lay it face down on a flat surface.
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43-222b.fm Page 5 Thursday, August 12, 1999 3:55 PM
2. Snap the battery connector over the 9V bat-
tery’s terminals.
3. Put the battery inside the case on top of the
foam cushioning material.
4. Snap the case halves together.
Cautions:
• Always remove old or weak batteries. Batteries
can leak chemicals that can destroy electronic
parts.
• Dispose of an old battery promptly and prop-
erly. Do not burn or bury it.
5
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CONNECTING THE STATIONS
Choose the most convenient locations for the mas-
ter and remote stations. You can place them on a
desk or shelf, or mount them on a wall.
Plug the connector on one end of the supplied 66-
foot-long cable into the remote station’s jack. Plug
the connector on the other end of the cable into the
master station’s jack.
6
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43-222b.fm Page 7 Thursday, August 12, 1999 3:55 PM
Notes:
• Be sure to route the cable so it will not be
pinched by doors or stepped on.
Use the supplied mounting staples to hole the
cable in place. Simply position the cable
between the prongs of each staple you need,
then gently tap the staple with a hammer until
the staple’s gray coating touches the wall.
• To install the stations farther than 66 feet apart,
you can make a connecting cable of 22 gauge
1
wire (Cat. No. 278-862) and two /8-inch two-
conductor plugs (Cat. No. 274-288).
7
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43-222b.fm Page 8 Thursday, August 12, 1999 3:55 PM
Wall Mounting
For wall mounting, you need two flat-head screws
(not supplied) with heads that fit into the keyhole
slots on the bottom of the base.
5/32"
Drill two holes 25/8 inches (67 mm)
apart. Then thread a screw into
each hole, letting the heads ex-
5
tend about /32 inch (4 mm) from
25/8
"
6
the wall.
Align the keyhole slots with the
mounting screws and slide the sta-
tion downward to secure it.
8
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43-222b.fm Page 9 Thursday, August 12, 1999 3:55 PM
OPERATION
USING THE MASTER STATION
Speaker/
Microphone
PUSH TO TALK
Button
VOLUME
Control
To send a loud tone to the remote station, be sure
VOLUME
OFF
PUSH TO TALK
. Then press
is set to
.
VOLUME
To talk from the master station, rotate
to
PUSH TO TALK
the left until it clicks, then hold down
PUSH TO
and speak in a normal voice. Release
TALK
VOLUME
to the
to hear the response. Rotate
left or right to increase or decrease the listening lev-
el.
Note:
VOLUME
setting does not affect the
The
sound from the master station’s microphone.
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43-222b.fm Page 10 Thursday, August 12, 1999 3:55 PM
To save battery power, set VOLUME to OFF when
you finish using the intercom system.
To monitor activity around the remote station, rotate
VOLUME to the left until it clicks. Adjust VOLUME as
necessary to hear sounds through your master sta-
tion’s speaker.
USING THE REMOTE STATION
Speaker/
Microphone
CALL Button
To send a loud tone to the master station, press
CALL.
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43-222b.fm Page 11 Thursday, August 12, 1999 3:55 PM
To talk from the remote station, speak in a normal
voice. Listen to hear the response from the master
station.
Notes:
• The master station must be turned on for the
remote station to work.
• Do not press CALL while talking or listening to
the master station.
11
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43-222b.fm Page 12 Thursday, August 12, 1999 3:55 PM
CARE
To enjoy your RadioShack Two-Station Wired Inter-
com System for a long time:
• Keep the system dry. if it gets wet, wipe it dry
immediately.
• Use and store the system only in normal tem-
perature environments.
• Handle the system gently and carefully. Don’t
drop it.
• Keep the system away from dust and dirt.
• Wipe the system with a damp cloth occasion-
ally to keep it looking new.
Modifying or tampering with the intercom system’s
internal components can cause a malfunction and
invalidate its warranty. If your system is not perform-
ing as it should, take it to your local RadioShack
store for assistance.
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43-222b.fm Page 13 Thursday, August 12, 1999 3:55 PM
THE FCC WANTS YOU TO KNOW
Your intercom system might cause TV or radio inter-
ference even when it is operating properly. To deter-
mine whether your system is causing the
interference, turn it off. If the interference goes
away, your system is causing it. Try to eliminate the
interference by:
• Moving your system away from the receiver
• Contacting your local RadioShack store for
help
13
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SPECIFICATIONS
Receiver
Input Sensitivity at Output 50 mW .............. 200 µV
Output Power at 10% Distortion .............. 300 mW
Frequency Response (–6 dB at VR max.):
600 Hz–4000 Hz
Transmitter
Mic. Sensitivity at Output 50 mW ............... 200 µV
Output Power at 10% Distortion ............... 160 mW
Frequency Response (–6 dB at VR max.):
600 Hz–4000 Hz
General
Dimensions:
Stations (HWD) ............. 41/8 × 31/3 × 11/2 Inches
(105 × 85 × 38.4 mm)
Weight:
Master Station (Without Battery) .. 5 oz (135 g)
Remote Station .............................. 4 oz (110 g)
Specifications are typical; individual units might
vary. Specifications are subject to change and im-
provement without notice.
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43-222b.fm Page 15 Thursday, August 12, 1999 3:55 PM
Limited Ninety-Day Warranty
This product is warranted by RadioShack against manufacturing
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 franchisees and deal-
ers. 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, Ra-
dioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO
CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-
RECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF
THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS
WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAM-
AGES RESULTING FROM INCONVENIENCE, LOSS OF TIME,
DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBIL-
ITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied
warranty lasts or the exclusion of incidental or consequential dam-
ages, 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 pur-
chase date to any RadioShack store. RadioShack will, at its op-
tion, 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 perfor-
mance of warranty service. Repaired or replaced (Continued)
15
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43-222b.fm Page 16 Thursday, August 12, 1999 3:55 PM
(Continued) parts and products are warranted for the remainder of
the original warranty period. You will be charged for repair or replace-
ment of the product made after the expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or at-
tributable to acts of God, abuse, accident, misuse, improper or abnor-
mal usage, failure to follow instructions, improper installation or
maintenance, alteration, lightning or other incidence of excess volt-
age or current; (b) any repairs other than those provided by a Ra-
dioShack Authorized Service Facility; (c) consumables such as fuses
or batteries; (d) cosmetic damage; (e) transportation, shipping or in-
surance 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
811081320A
5A8N
Printed in China
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