43-1051.fm Page 16 Tuesday, August 17, 1999 1:08 PM

TROUBLESHOOTING

We do not expect you to have any problems with your phone, but if you do, the fol- lowing suggestions might help.

Problem

Suggestion

 

 

 

 

Low volume or unusual

Someone has picked up another phone on the

sounds.

same line. Hang up the other phone.

 

 

 

Press CHANNEL to change the channel.

 

 

 

Adjust the handset’s volume.

 

 

Severe noise interference.

Press CHANNEL to change the channel.

 

 

 

Keep the handset away from computers, re-

 

mote control toys, wireless microphones, alarm

 

systems, intercoms, room monitors, fluorescent

 

lights, and electrical appliances.

 

 

 

Move to another location or turn off the source

 

of the interference.

 

 

The phone cannot be operated

Fully extend the base’s antenna in a vertical po-

at a useful distance from the

sition.

base because the signal be-

 

Be sure neither antenna is touching a metal sur-

comes weak or noisy (hand-

face.

set’s range has decreased).

 

Return the handset to the base to recharge the

 

 

battery pack.

 

 

The phone does not work or

Be sure the base’s phone line cord and AC

works poorly.

adapter are correctly and securely connected,

 

and the battery pack is charged.

 

 

The handset battery pack does

Check the charging contacts on the handset

not charge.

and base. If they are dirty, clean them with a

 

pencil eraser.

 

 

 

Be sure the battery pack is connected correctly.

 

 

 

Replace the battery pack.

 

 

16

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Image 16
Radio Shack RT-551 owner manual Troubleshooting

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.