Browse Definitions :
Definition

Citizen's Band Radio (CB)

Compare with amateur radio .

The Citizen's Band (CB) Radio Service, also known simply as CB, is a public, two-way personal radio service. There are several classifications of CB operation. The best-known form of CB is voice communications that became a fad in the 1970s. Mobile CB operation, especially in cars and trucks, remains popular. To a lesser extent, "CB'ers" engage in fixed operation from homes, and in portable communications using handheld transceivers.

Most CB operation takes place within a narrow band of frequencies near 27 MHz. There are 40 channels in this band. These channels are overcrowded. Congestion is worst during peaks in the 11-year sunspot cycle when the 27-MHz band supports worldwide communication known as "skip." Sunspot cycle peaks occurred in 1967-69, 1978-80, 1989-91, and 2000-2002. During the long intervals between these peaks, the normal range of operation on the 27-MHz band is rarely more than 20 miles.

Some CB operators illegally modify their equipment, or obtain illegally modified equipment, capable of higher transmitter output power and greater frequency coverage than is allowed by Federal Communications Commission (FCC) regulations. These operators use their equipment in an attempt to communicate over long distances, and/or to compete with other users of the service.� This is called freebanding or bootlegging.

The CB Radio Service has proven useful in disaster situations, both small-scale (for example, for a stranded motorist) and large-scale (such as after a hurricane or during a flash flood). An organization of expert communicators known as the Radio Emergency Associated Communications Teams (REACT) provides communications support in emergency situations. Channel 9 (at 27.065 MHz) is monitored by members of REACT, and is recognized as the CB emergency channel in the United States.

This was last updated in June 2011

Continue Reading About Citizen's Band Radio (CB)

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance as a service (CaaS)

    Compliance as a Service (CaaS) is a cloud service service level agreement (SLA) that specified how a managed service provider (...

  • data protection impact assessment (DPIA)

    A data protection impact assessment (DPIA) is a process designed to help organizations determine how data processing systems, ...

SearchSecurity

  • quantum key distribution (QKD)

    Quantum key distribution (QKD) is a secure communication method for exchanging encryption keys only known between shared parties.

  • identity theft

    Identity theft, also known as identity fraud, is a crime in which an imposter obtains key pieces of personally identifiable ...

  • cybercrime

    Cybercrime is any criminal activity that involves a computer, networked device or a network.

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery plan (DRP)

    A disaster recovery plan (DRP) is a documented, structured approach that describes how an organization can quickly resume work ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

SearchStorage

  • logical unit number (LUN)

    A logical unit number (LUN) is a unique identifier for designating an individual or collection of physical or virtual storage ...

  • NVMe over Fabrics (NVMe-oF)

    NVMe over Fabrics, also known as NVMe-oF and non-volatile memory express over fabrics, is a protocol specification designed to ...

  • CIFS (Common Internet File System)

    CIFS (Common Internet File System) is a protocol that gained popularity around the year 2000, as vendors worked to establish an ...

Close