43-1057.fm Page 4 Tuesday, August 17, 1999 1:42 PM

READ THIS BEFORE INSTALLATION

Each device that you connect to the phone line draws power from the phone line. We refer to this power draw as the device’s Ringer Equivalence Number, or REN. The REN is shown on the bottom of the base.

If you are using more than one phone or other device on the line, add up all the RENs. If the total is more than five, your phones might not ring. In rural ar- eas, a total REN of three might impair ringer operation. If ringer operation is impaired, remove a device from the line.

FCC STATEMENT

This telephone complies with Part 68 of FCC Rules. You must, upon re- quest, provide the FCC Registration Number and the REN to your phone company. These numbers are located on the bottom panel of the base.

Note: You must not connect your phone to any of the following:

•coin-operated systems

•party-line systems

•most electronic key phone sys- tems

Some cordless telephones operate on frequencies that may cause interfer- fence to nearby TVs and VCRs. To minimize or prevent such interference, the base of the cordless telephone should not be placed near or on top of TVs or VCRs. If interference is experi- enced, moving the cordless telephone farther away from the TV or VCR will often reduce or eliminate the interfer- ence.

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Radio Shack ET-557 owner manual Read this Before Installation, FCC Statement
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ET-557 specifications

The Radio Shack ET-557 is a remarkable two-way radio designed for outdoor enthusiasts, professionals, and anyone in need of reliable communication. Known for its robust features and durability, the ET-557 provides a blend of performance and usability that stands out in its class.

One of the standout features of the ET-557 is its impressive range. Operating on UHF frequencies, this radio can reach up to 25 miles in open areas, offering users the freedom to communicate without boundaries. This capability is essential for hiking, camping, or any outdoor activities where long-distance communication is crucial.

The ET-557 is equipped with 22 channels, allowing users to choose from a range of frequencies to minimize interference. This flexibility ensures clear communication even in crowded areas or during busy events. Moreover, it features 121 privacy codes which help to filter out unwanted transmissions, providing a more private communication experience.

Another notable technology integrated into the ET-557 is its dual power options. Users can operate the radio with either rechargeable batteries or standard AA batteries, making it highly versatile and user-friendly. This feature is particularly beneficial when venturing into remote areas where charging facilities may be unavailable.

The ET-557 also boasts a rugged design, built to withstand the rigors of outdoor use. It is engineered with a weather-resistant casing that protects it from the elements, ensuring reliable operation even in adverse weather conditions. Additionally, the radio is compact and lightweight, making it easy to carry without adding extra bulk to a loadout.

Ease of use is a hallmark of the ET-557. Its intuitive interface includes clearly labeled buttons and a simple display, allowing users to navigate settings effortlessly. The built-in LCD screen provides essential information at a glance, including battery level, channel selection, and incoming transmissions.

In terms of additional functionalities, the ET-557 includes features such as VOX (voice-activated transmission) for hands-free operation, as well as a built-in flashlight for added utility during nighttime adventures. The inclusion of a belt clip also ensures easy accessibility.

In conclusion, the Radio Shack ET-557 is a reliable, feature-packed two-way radio that caters to the needs of various users, from outdoor enthusiasts to professionals. Its advanced range, versatile power options, durable design, and user-friendly interface make it an excellent choice for anyone seeking dependable communication on the go.
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