Radio Shack 43-124 manual Specifications, RF Emissions Information, Limited 90-Day Warranty

Models: 43-124

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mounting the intercom

Be sure you install the intercoms at least 10 feet away from each other. Or, you may hear a squeal from

NOTES

the speakers.

The intercoms can transmit up to 200 feet line of sight.

specifications

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

1.Align horizontally to position and drill two holes smaller than the screws.

2.Thread a anchor and screw (not supplied) into each hole.

315/16

1/4”

1/8”

 

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.

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

Specifications are subject to change and improvement without notice. Actual product may vary from the images found in this document.

connecting an audio source

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

NOTES 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.

listening to an audio source

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.

AUX INPUT

WX INPUTAC Adapter plug

NOTES

The AUX INPUT for audio source is disabled when VOX mode is activated.

 

connecting a weather radio

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 first.

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 specific 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.

RF Emissions Information

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 modifications 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.

Limited 90-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 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

43-124.indd 2

07/25/2007 11:34:14

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Radio Shack 43-124 manual Specifications, RF Emissions Information, Limited 90-Day Warranty