Radio Shack 43-124 Intercom System User Manual


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Channel Selectivity ± 500KHz ............................. ....................................................................................................... .................. 50 dB
Squelch Threshold ............................................ ....................................................................................................... ......... 20 dB SINAD
S/N at 1mV input, ± 38KHz deviation (A-weight) (@ROP) . ...................................................................................................... ... 50 dB
10% THD Output Power ............................................. ............................................................................................................... 500 mW
RX Current Drain at Reference Output ............................... ....................................................................................................... 140 mA
RFPowerOutputat50Ω....................................... ................................................................................................................... +3 dBm
MIC Input Sensitivity (@38 kHz Deviation) .................... ................................................................................................................ 3 mV
AUX Input Sensitivity (@38 kHz Deviation) ................... ......................................................................................................... ..... 90 mV
Sub Tone Deviation ....................................................... ........................................................................................................ ...... 10 KHz
Call Tone Deviation ......................................................... ......................................................................................................... .... 35 KHz
Alert Tone Deviation .......................................................... ........................................................................................................ .. 35 KHz
TX Current Drain ............................................................ ............................................................................................................... 65 mA
Battery Low Indication ................................................... ........................................................................................................ ......... 4.2 V
Minimum Operation Voltage (Battery) ........................... ...................................................................................................... .......... 3.8 V
Operation Range (line of sight) ...................................... ............................................................................................................ 200 feet
Overall Frequency Response (–3 dB Bandwidth) .... .............................................................................................................. 400 - 7kHz
Current Drain at Standby Mode .................................. ................................................................................................................. 24 mA
Charging Time for 80% ............................................... ............................................................................................................... 14 hour
AUX VOX Sensitivity ............................................................... ............................................................................................... ...... 25 mV
Mic VOX Sensitivity ..........................................................................................................................................................................2 mV
Weather Alarm Input Sensitivity (load current) ...............................................................................................................................1mA
Specications are subject to change and improvement without notice. Actual product may vary from the images found in this
document.
specications
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult your local RadioShack store or an experienced radio/TV technician for help.
If you cannot eliminate the interference, the FCC requires that you stop using your
intercom. Changes or modications not expressly approved by RadioShack may
cause interference and void the user’s authority to operate the equipment.
Only use the antenna attached to this product. 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 received, including interference that may cause undesired operation.
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 authorized RadioShack company-owned stores and authorized RadioShack
franchisees and dealers. For complete warranty details and exclusions, check with
your local RadioShack store.
RadioShack Customer Relations
300 RadioShack Circle Fort Worth, TX 76102
04/04
RF Emissions Information
Limited 90-Day Warranty
• Be sure you install the intercoms at least 10 feet away from each other. Or, you may hear a squeal from
the speakers.
• The intercoms can transmit up to 200 feet line of sight.
mounting the intercom
1. Align horizontally
to position and
drill two holes
smaller than the
screws.
2. Thread a anchor
and screw (not
supplied) into
each hole.
3. Align the
intercom’s keyhole
slots with the
mounting screws
and slide the
intercom down
onto it to secure.
4. Lift and rotate the
antenna up so it
stands vertically.
315/16”
1/4”
1/8”
NOTES
To transmit audio to each intercom, connect AUX
INPUT of a intercom to an audio source’s output jack
(such as AUX OUT or TAPE OUT) through an audio
cable (not supplied). Follow the instructions in the
owner’s manual for your audio equipment to play
audio.
• If you use the AUX broadcasting feature
and also use the weather radio inputs, you
MUST connect the Weather radio alarm’s
output to the unit that is using the AUX
broadcasting feature. The weather radio
inputs must not be connected to a unit that
is RECEIVING the broadcast.
• Always connect the weather radio’s alarm
output to the intercom you frequently use to
broadcast.
• If your audio sources cable does not have
the appropriate connector to attach to the
intercom, use an adapter available at your
RadioShack store or at RadioShack.com.
connecting an audio source
NOTES
To transmit weather alerts to each intercom, connect the WX INPUT of a intercom to your weather radio’s ALERT
OUT terminals. Follow the instructions in the owner’s manual for your weather radio to create a weather alert.
• If you connect an intercom to both a weather radio and an audio source and both sources are playing at the
sametime,theintercomalwayssoundstheweatheralertrst.
• The intercom’s weather alarm will only shut off after the weather radio alerts expire or after you manually stop
the weather radio alert. To avoid disturbing neighbors/pets if you are away from the weather radio, turn off the
intercom or lower the volume before leaving.
• To stop the alert from a weather radio, it is recommended to manually reset the ALERT OUT terminal of the
weather radio. For example on the RadioShack 12-262 weather radio, you must press the WEATHER/SNOOZE
button twice during an alert to reset ALERT OUT(refertotheUser’sGuideforyourspecicweatherradio
model).
• The RadioShack Cat. No.12-262 weather radio (not supplied) has alert output terminals you can use to connect to
the intercoms.
connecting a weather radio
WX INPUT
AUX INPUT
AC Adapter plug
• Each intercom can broadcast from a connected
audio source only when the channel to which it is
set to is not being used to transmit voice from one
intercom to another.
• You can only broadcast from one intercom at a
time.
• Adjusting VOLUME on the intercoms does not
change the intercom’s input sensitivity.
listening to an audio source
The AUX INPUT for audio source is disabled when VOX mode is activated.
NOTES
43-124.indd 2 07/25/2007 11:34:14
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