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The Canadian Radio-television and Telecommunications Commission is a public organization in Canada with mandate as a regulatory agency for broadcasting and telecommunications. It was created in 1976 when it took over responsibility for regulating telecommunication carriers. Prior to 1976, it was known as the Canadian Radio and Television Commission, which was established in 1968 by the Parliament of Canada to replace the Board of Broadcast Governors. Its headquarters is located in the Central Building of Les Terrasses de la Chaudière in Gatineau, Quebec.
The ISM radio bands are portions of the radio spectrum reserved internationally for industrial, scientific, and medical (ISM) purposes, excluding applications in telecommunications. Examples of applications for the use of radio frequency (RF) energy in these bands include radio-frequency process heating, microwave ovens, and medical diathermy machines. The powerful emissions of these devices can create electromagnetic interference and disrupt radio communication using the same frequency, so these devices are limited to certain bands of frequencies. In general, communications equipment operating in ISM bands must tolerate any interference generated by ISM applications, and users have no regulatory protection from ISM device operation in these bands.
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
Wireless telegraphy or radiotelegraphy is transmission of text messages by radio waves, analogous to electrical telegraphy using cables. Before about 1910, the term wireless telegraphy was also used for other experimental technologies for transmitting telegraph signals without wires. In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves. At the receiver the pulses are audible in the receiver's speaker as beeps, which are translated back to text by an operator who knows Morse code.
LPD433 is a UHF band in which license free communication devices are allowed to operate in some regions. The frequencies correspond with the ITU region 1 ISM band of 433.050 MHz to 434.790 MHz. The frequencies used are within the 70-centimeter band, which is currently reserved for government and amateur radio operations in the United States and most nations worldwide.
Television in the Republic of Ireland is available through a variety of platforms. The digital terrestrial television service is known as Saorview and is the primary source of broadcast television since analogue transmissions ended on 24 October 2012. Digital satellite and digital cable are also widely used.
Wireless communication is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, such as light and magnetic or electric fields, or the use of sound.
PMR446 is a licence-exempt service in the UHF radio frequency band and is available for business and personal use in most countries throughout the European Union.
The Commission for Communications Regulation (ComReg) is the general communications regulator for Ireland, covering almost all possible types of communications.
Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction. The disturbance may degrade the performance of the circuit or even stop it from functioning. In the case of a data path, these effects can range from an increase in error rate to a total loss of the data. Both man-made and natural sources generate changing electrical currents and voltages that can cause EMI: ignition systems, cellular network of mobile phones, lightning, solar flares, and auroras. EMI frequently affects AM radios. It can also affect mobile phones, FM radios, and televisions, as well as observations for radio astronomy and atmospheric science.
Wireless Telegraphy Act is a stock short title used for legislation in the Republic of Ireland, South Africa and the United Kingdom relating to wireless telegraphy.
A cellular repeater is a type of bi-directional amplifier used to improve cell phone reception. A cellular repeater system commonly consists of a donor antenna that receives and transmits signal from nearby cell towers, coaxial cables, a signal amplifier, and an indoor rebroadcast antenna.
IEEE 802.11y-2008 is an amendment to the IEEE 802.11-2007 standard that enables data transfer equipment to operate using the 802.11a protocol on a co-primary basis in the 3650 to 3700 MHz band except when near a grandfathered satellite earth station. IEEE 802.11y is only being allowed as a licensed band. It was approved for publication by the IEEE on September 26, 2008.
A video sender is a device for transmitting domestic audio and video signals wirelessly from one location to another. It is most commonly used for sending the output of a source device, such as a satellite television decoder, to a television in another part of a property and provides an alternative to cable installations.
The Broadcasting (Amendment) Act 2007 is an Act of the Oireachtas which was enacted in April 2007. It deals with Irish Analogue broadcasting systems and the amendment of legislation on Digital Terrestrial Television dating back to 2001. This act amends previous acts in particular the Broadcasting Act 2001.
In Ireland, a television licence is required for any address at which there is a television set. Since 2016, the annual licence fee is €160. Revenue is collected by An Post, the Irish postal service. The bulk of the fee is used to fund Raidió Teilifís Éireann (RTÉ), the state broadcaster. The licence must be paid for any premises that has any equipment that can potentially decode TV signals, even those that are not RTÉ's. The licence is free to anyone over the age of 70, some over 66, some Social Welfare recipients, and the blind. The fee for the licences of such beneficiaries is paid for by the state. The current governing legislation is the Broadcasting Act 2009, in particular Part 9 "Television Licence" and Chapter 5 "Allocation of Public Funding to RTÉ and TG4". Devices which stream television via internet do not need licences, nor do small portable devices such as mobile phones.
The Indian Telegraph Act, 1885 is the enabling legislation in India which governs the use of wired and wireless telegraphy, telephones, teletype, radio communications and digital data communications. It gives the Government of India exclusive jurisdiction and privileges for establishing, maintaining, operating, licensing and oversight of all forms of wired and wireless communications within Indian territory. It also authorizes government law enforcement agencies to monitor/intercept communications and tap phone lines under conditions defined within the Indian Constitution. The act came into force on 1 October 1885. Since that time, numerous amendments have been passed to update the act to respond to changes in technology.
Citizens band radio is a system of short-distance radio communications between individuals on a selection of channels within the 27-MHz band. In India, this frequency band extends from 26.957 MHz to 27.283 MHz. There are several different channel plans in use. Citizens band is distinct from the Family Radio Service, GMRS, Multi-Use Radio Service and amateur radio (Ham). In many countries CB operation does not require a license, and it may be used for business or personal communications. Like many other two-way radio services, any citizens band channel is shared by many users. Only one station may transmit in a channel at a time; other stations must listen and wait for the shared channel to be available. Also, the system works in half-duplex mode, which means we may transmit and receive information, but not both at the same time.
Wireless microphones may operate over various frequencies, licensed or unlicensed depending upon the country.
References
- 1 2 "Licensing - Licensing of Wireless Telegraphy Equipment". Commission for Communications Regulation . Retrieved 2023-05-21.
- ↑ "Frequently Asked Questions (FAQ)". Commission for Communications Regulation . Retrieved 2023-05-21.
- ↑ "Licence Exemptions". Commission for Communications Regulation . Retrieved 2023-05-21.
- 1 2 3 4 5 6 7 8 9 10 "List of Licence Exemptions". Commission for Communications Regulation . Retrieved 2023-05-21.