Radio Shack RT-551 owner manual Read this Before Installation, FCC Statement

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43-1051.fm Page 3 Tuesday, August 17, 1999 1:08 PM

Important Note: 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-551. To be safe, you should also have a phone that does not need AC power to operate (not a cordless phone) so you can still make and receive calls if there is an AC power failure.

WARNING: To reduce the risk of fire or shock hazard, do not ex- pose this product to rain or mois- ture.

 

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.

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 shown on the bottom 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

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Contents ET-551 Features FCC Statement Read this Before InstallationContents Installation Installing the HANDSET’S AntennaSelecting a Location Mounting the Base on a Wall Plate Placing the Base on a Desk TopStrain Relief Slot Groove Mounting the Base Directly on the Wall Connecting and Charging the Battery Pack Charge Indicator Setting the Dialing Mode Setting the VolumeTurning the Ringer on or OFF Changing Channel Using RedialOperation Making and Receiving CallsUsing Tone Services on a Pulse Line Using FlashPaging Memory DialingStoring a Number in Memory Dialing a Memory Number Chain-Dialing Service NumbersTesting Stored Emergency Numbers Entering a PauseTroubleshooting Fm Page 17 Tuesday, August 17, 1999 108 PM Care and Maintenance Replacing Battery Pack FCC Wants YOU to Know Lightning Fm Page 22 Tuesday, August 17, 1999 108 PM Fm Page 23 Tuesday, August 17, 1999 108 PM RadioShack Division of Tandy Corporation Fort Worth, Texas

RT-551 specifications

The Radio Shack RT-551 is a dynamic dual-band amateur radio transceiver that has gained notable recognition among hobbyists and professionals alike. Launched as part of Radio Shack's commitment to deliver quality communication equipment, the RT-551 stands out with its impressive set of features and advanced technologies suitable for both casual and serious radio operators.

One of the standout features of the RT-551 is its dual-band capability, allowing users to operate on both the 2-meter and 440 MHz bands. This frequency versatility ensures that operators can communicate over a broad range of amateur radio applications, making it an ideal choice for various communication scenarios. The transceiver offers a wide frequency range, enabling connections across local and regional networks as well as interoperability with other amateur equipment.

The RT-551 is equipped with a powerful 50-watt output, ensuring strong signal strength and clarity during transmissions. This output is complemented by an advanced receiver sensitivity, enabling clear reception even in challenging environments with high levels of interference. Clear communication is further enhanced by the built-in noise filter, which eliminates background noise, making conversations more pleasant and intelligible.

In terms of ease of use, the RT-551 features an intuitive control panel with well-laid-out buttons and a large LCD display that provides clear frequency readouts and other vital information. This user-friendly design allows operators of all skill levels to quickly set up and navigate through the radio's functions without confusion.

Moreover, the RT-551 supports CTCSS and DCS encoding and decoding, which are essential for private communications on crowded frequencies. This feature ensures that users can communicate discreetly and avoid interference from unwanted signals.

The transceiver also includes a built-in Automatic Noise Limiter (ANL) that further improves incoming signal quality by suppressing noise and enhancing voice clarity. This feature is particularly beneficial for operators working in urban environments or regions with significant radio traffic.

In conclusion, the Radio Shack RT-551 is a well-rounded amateur radio transceiver that combines robust power, flexibility, and ease of use. Its dual-band operation, advanced noise filtering technology, and user-friendly design make it a favorite among radio enthusiasts. Whether for local conversations or connecting with distant stations, the RT-551 provides the reliability and performance demanded by dedicated radio operators.
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