Radio Shack ET-543 owner manual Fm Page 3 Tuesday, August 17, 1999 1036 AM

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43-1043.fm Page 3 Tuesday, August 17, 1999 10:36 AM

Important: Cordless phones such as this one require AC power to operate. When the AC power is off, you cannot dial out or receive incoming calls using your ET-543. For this reason, the ET- 543 cordless phone should not be your only telephone. To be safe, you should also have a phone that does not require AC power to operate (not a cordless phone) so you can still make and receive calls if there is an AC power failure.

This telephone has been tested and found to comply with all applicable UL and FCC standards.

Your ET-543 operates on standard ra- dio frequencies, as allocated by the FCC. Therefore, it is possible for other radio units operating on similar fre- quencies, within a certain area, to in- advertently intercept your conversa- tions and/or cause interference on your cordless telephone. This lack of privacy can occur with any cordless telephone.

For your records, we urge you to record the serial number of your phone in the space below. The serial number is located on the bottom panel of the base.

Serial Number ______________

Warning: To prevent fire or shock hazard, do not expose this product to rain or moisture.

 

CAUTION

!

 

 

 

RISK OF ELECTRIC SHOCK.

 

 

 

DO NOT OPEN.

 

 

 

 

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-SERVICE- ABLE PARTS INSIDE. REFER SERVIC- ING TO QUALIFIED PERSONNEL.

This symbol is intended to alert you to the presence of uninsulated dan- gerous voltage within the product’s enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product’s case.

This symbol is intended to inform

!you that important operating and maintenance instructions are in-

cluded in the literature accompany- ing this product.

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Contents ET-543 Features Fm Page 3 Tuesday, August 17, 1999 1036 AM FCC Statement Read this Before InstallationContents Installation Installing the PhoneSelecting a Location Connecting Battery Charging BatteryPreparation Setting the Dialing Mode MAKING/ANSWERING a Call Using the Handset At the BaseUsing the Handset Away from the Base OperationUsing Redial Using FLASH/DELReducing Interference Memory Dialing UsingStoring a Number in Memory Entering a Pause A Memory Number Dialing a Stored NumberChain Dialing Testing Stored Emergency NumbersSolutions TroubleshootingProblem The handset’s range decreases Care and Maintenance FCC Wants YOU to Know Replacing BatteryLightning RadioShack Division of Tandy Corporation Fort Worth, Texas

ET-543 specifications

The Radio Shack ET-543 is a noteworthy addition to the realm of portable electronic technology, particularly in the category of handheld calculators and educational tools. Launched during a vibrant era of innovation, the ET-543 encapsulates the spirit of the late 20th century, when personal computing and digital gadgets became increasingly accessible to the general public.

At its core, the ET-543 features a natural display that allows for easy viewing of calculations, making it user-friendly for both novices and seasoned users alike. The device is equipped with a combination of mathematical functions that streamline computations ranging from basic arithmetic to more complex algebraic operations. This wide array of capabilities makes the ET-543 an ideal choice for students and professionals who require a reliable tool for everyday calculations.

One of the standout technologies of the ET-543 is its robust memory function, which allows users to store multiple calculations for later use. This feature is particularly beneficial for users who engage in repetitive tasks or require a quick reference for previously calculated values. Coupled with its programmable functions, the ET-543 presents a versatile platform that can accommodate a range of mathematical needs.

In terms of design, the Radio Shack ET-543 boasts a compact and lightweight form factor, making it highly portable. This characteristic is essential for users who need a dependable calculator on the go, whether in the classroom, workplace, or during travel. The button layout is intuitive, allowing for easy navigation through various functions without the need for extensive training.

Another important aspect of the ET-543 is its educational value. The device serves as a practical teaching aid, helping students grasp fundamental concepts of mathematics and computation. Its durability and ease of use ensure that it stands up to repeated use in educational environments.

In summary, the Radio Shack ET-543 is more than just a calculator; it embodies the fusion of technological innovation and user-centric design. With features tailored to meet a variety of mathematical challenges, coupled with its portability and educational utility, the ET-543 remains a symbol of practical technology that resonates with users across generations.
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