Radio Shack ET-543 owner manual Reducing Interference, Using Redial, Using FLASH/DEL

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•You can make or answer a call on a phone on the same line as the cordless phone, even if the hand- set is away from the base.

•RANGE appears when the dis- tance from the handset to the base is out of the phone’s range.

•The keypad lights on the handset turn off if no button is pressed for more than 13 seconds.

REDUCING

INTERFERENCE

To reduce interference, press CH to switch to the next channel (25 chan- nels in all) until you receive the best re- ception. CH and the channel number appear on the display.

USING REDIAL

To quickly redial the last number you dialed, simply lift the handset from the base and press TALK again so the CHARGE/TALK indicator lights, and then press REDIAL. The redialed num- ber appears on the display.

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The redial memory holds up to 80 dig- its in the tone or pulse mode. The redi- al memory also holds pause entries (see “Entering a Pause” under “Memo- ry Dialing”).

Note: We recommend you not use RE- DIAL to dial numbers that include a tone (*) entry (see “Using Tone Servic- es on a Pulse Line”).

USING FLASH/DEL

Use FLASH/DEL on the handset to per- form the switchhook operation for spe- cial services, such as call waiting.

For example, if you have call waiting, press FLASH/DEL to take an incoming call without disconnecting the current call. FLASH appears. Press FLASH/ DEL again to return to the first call.

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Contents ET-543 Features Fm Page 3 Tuesday, August 17, 1999 1036 AM Read this Before Installation FCC StatementContents Installing the Phone InstallationSelecting a Location Charging Battery Connecting BatteryPreparation Setting the Dialing Mode Operation Using the Handset At the BaseUsing the Handset Away from the Base MAKING/ANSWERING a CallUsing FLASH/DEL Using RedialReducing Interference Using Memory DialingStoring a Number in Memory Dialing a Stored Number Entering a Pause A Memory NumberTesting Stored Emergency Numbers Chain DialingTroubleshooting SolutionsProblem The handset’s range decreases Care and Maintenance Replacing Battery FCC Wants YOU to KnowLightning 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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