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FEATURES

Your RadioShack ET-543 LCD Display 25-Channel Cordless Telephone of- fers the latest advances in cordless phone technology, and includes these features:

LCD Display — lets you see phone numbers as you dial them or recall them from the ET-543’s memory.

Auto Scan — automatically selects the clearest channel when you pick up the phone.

25-Channel Selector — lets you man- ually change channels to find one with the least interference.

Advanced Super CCT Circuitry — provides clarity comparable to a cord- ed phone, reduces background noise, and increases effective operating dis- tance.

COM-LOK®— ensures that other cordless phone users cannot use your phone line while the handset is on the base.

Automatic Security Access Code — changes each time you disconnect and restore power to the base to help pre- vent other cordless phone users from using your phone line while the hand- set is off the base.

Flash — sends an electronic switch- hook signal for use with special phone services such as call waiting.

Handset Volume Control — lets you control the volume of the sound you hear through the handset.

Lighted Keypad — lights to make the phone easy to use when you are mak- ing or answering a call in a dark room.

Redial — quickly redials the last num- ber dialed with the touch of a button.

Touch Tone or Pulse (Rotary) Dial- ing — lets you connect your phone to either type of service.

30-Number Memory Dialing — lets you store 30 phone numbers in memo- ry for easy dialing.

Please read this Owner’s Manual care- fully so you can enjoy all of your tele- phone’s features.

© 1996 Tandy Corporation.

All Rights Reserved.

COM-LOK is a registered trademark used by Tandy Corporation.

RadioShack is a trademark used by Tandy Corporation.

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Radio Shack ET-543 owner manual Features
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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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