Radio Shack RT-551 owner manual Charge Indicator

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4.To charge the battery pack, simply place the handset on the base.

Charge

Indicator

OFF

RINGER

ON

The CHARGE indicator on the base lights.

Recharge the battery pack when the LOW BATT indicator on the handset flashes.

7 8 9

OPER

0

LOW BATT

Notes:

•If the CHARGE indicator does not light when you place the handset on the base, be sure the battery pack and AC adapter are correctly and securely connected.

•When you first use the phone after charging or recharging the battery pack, the phone might not work and you might hear an error tone.

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If this happens, return the handset to the base for a few seconds.

•If the LOW BATT indicator does not light, but the phone does not work, recharge the battery pack. The battery voltage might be too low to light the indicator.

•If the battery pack gets weak dur- ing a call, the handset sounds three beeps every 30 seconds, and the LOW BATT indicator flash- es for 2 minutes. After 2 minutes, the phone automatically discon- nects. If this happens, you cannot make another call on the phone until you recharge the battery pack.

•About every 30 days, fully dis- charge the battery pack by keep- ing the handset off the base until the LOW BATT indicator lights. Otherwise, the battery pack loses its ability to fully recharge.

•Using a pencil eraser, clean the charging contacts on the handset and the base about once a month to make sure they are not dirty or tarnished.

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Contents ET-551 Features Read this Before Installation FCC StatementContents Installing the HANDSET’S Antenna InstallationSelecting a Location Placing the Base on a Desk Top Mounting the Base on a Wall PlateStrain Relief Slot Groove Mounting the Base Directly on the Wall Connecting and Charging the Battery Pack Charge Indicator Setting the Volume Setting the Dialing ModeTurning the Ringer on or OFF Making and Receiving Calls Using RedialOperation Changing ChannelUsing Flash Using Tone Services on a Pulse LineMemory Dialing PagingStoring a Number in Memory Entering a Pause Chain-Dialing Service NumbersTesting Stored Emergency Numbers Dialing a Memory NumberTroubleshooting 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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