Glossary of Terms

Glossary of terms

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Alpha tag - This term refers to an alphanumeric text tag that you can enter to describe the individual frequencies that you have programmed. Rather than having to associate a specific frequency to the individuals that are using it, you can enter the actual name of the group. This will eliminate the need for memorizing the group’s frequency.

Attenuator - This scanner comes with a feature to attenuate or reduce the signal strength. The built-in attenuator can be turned on specific frequencies to prevent strong signals from overloading the scanner input, possibly damaging the scanner or missing other transmissions due to the repeated stopping on the stronger signal.

Clone - This term identifies the ability to set up a duplicate scanner. This function allows you to clone all the programming information, including frequencies, talkgroups and alpha tags as well as bank settings and other parameters from one BC780XLT to another.

Control Channel - A Control Channel is the frequency within a trunking system that runs the system. On Control Channels (sometimes called Data Channels) you will hear a buzzsaw sound. For the most part, it is the sound of the system’s central computer directing talkgroups to particular voice (working) frequencies within the system.

CTCSS - Continuous Tone Controlled Squelch System- refers to a system where the radio receivers are equipped with tone responsive devices which allow audio signals to appear at the audio output, select voice processing such as scrambling or control repeater functions only when a carrier modulated with a specific tone is received. This method may be used to restrict access to the repeater or receiver, or reduce interference where several stations with output frequencies in close proximity of each other make it difficult to hear the conversation you are interested in. With CTCSS squelching, you can eliminate the possibility of hearing unwanted conversations by selecting one of the 38 standard subaudible tones. You will only hear those transmissions that have been programmed on specific frequencies with the specific subaudible tone that you have selected.

DCS - (Digital Controlled Squelch) refers to a system where the radio receivers are equipped with data burst responsive devices which allow audio signals to appear at the audio output, select voice processing such as scrambling or control repeater functions only when a carrier modulated with specific data burst is received. This method may be used to restrict access to the repeater or receiver, or reduce interference where several stations with output frequencies in close proximity of each other make it difficult to hear the conversation you are interested in. With DCS squelching, you can eliminate the possibility of hearing unwanted conversations by selecting one of the 104 standard data burst subaudible tones. You will only hear those transmissions that have been programmed on specific frequencies with the specific subaudible tone that you have selected.

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Uniden BC780XLT manual Glossary of Terms, Glossary of terms
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BC780XLT specifications

The Uniden BC780XLT is a versatile and popular scanner that has made a name for itself among scanning enthusiasts and professionals alike. Released in the early 2000s, this model is known for its extensive feature set, allowing users to monitor a wide range of frequencies and communications.

One of the primary features of the BC780XLT is its capability to scan multiple frequency bands, including VHF, UHF, and 700/800 MHz frequencies. This makes it an ideal choice for monitoring public safety communications, utility services, and various other two-way radio frequencies. The scanner operates in an impressive frequency range of 25 MHz to 1.3 GHz, allowing users to enjoy a broad spectrum of signals.

The BC780XLT features TrunkTracker technology, which enables it to follow trunked radio systems. This is crucial for monitoring communications from agencies that operate on these complex frequency systems, like police and fire departments. The scanner can decode both Motorola and EDACS trunked systems, providing extensive coverage of public safety communications.

User-friendly controls and advanced features make the BC780XLT accessible for both beginners and experienced users. The numeric keypad allows for quick entry of frequencies, while the large LCD display provides easy visibility of channel information, including frequency and mode. The 10-channel pre-programmed memory allows users to store their favorite frequencies and easily scan between them.

In addition to its scanning capabilities, the BC780XLT also supports close call technology. This feature allows the scanner to automatically detect nearby signals, instantly alerting users to any active frequencies in their vicinity. This is particularly useful for users in urban areas, where multiple frequencies may be in use simultaneously.

The BC780XLT also has a robust battery-saving feature, making it an excellent option for those who need to scan on the go. This functionality, coupled with its ability to operate on AC or DC power, adds to its versatility, ensuring uninterrupted scanning during extended use or in field operations.

In conclusion, the Uniden BC780XLT Scanner stands out for its comprehensive feature set, including TrunkTracker technology, extensive frequency coverage, and user-friendly design. Whether for hobbyists, emergency responders, or professionals needing reliable communication, the BC780XLT continues to be a valuable tool in the world of scanning. Its enduring popularity speaks to its performance and adaptability in a rapidly evolving technological landscape.
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