AM broadcasting is a radio broadcasting technology, which employs amplitude modulation transmissions. It was the first method developed for making audio radio transmissions, is still used worldwide for medium wave transmissions, but on the longwave and shortwave radio bands; the earliest experimental AM transmissions began in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming carried by radio. Subsequently, AM radio's audiences have greatly shrunk due to competition from FM radio, Digital Audio Broadcasting, satellite radio, HD radio and Internet streaming. AM transmissions are much more susceptible than FM or digital signals are to interference, have lower audio fidelity.
Thus, AM broadcasters tend to specialise in spoken-word formats, such as talk radio, all news and sports, leaving the broadcasting of music to FM and digital stations. The idea of broadcasting — the unrestricted transmission of signals to a widespread audience — dates back to the founding period of radio development though the earliest radio transmissions known as "Hertzian radiation" and "wireless telegraphy", used spark-gap transmitters that could only transmit the dots-and-dashes of Morse code. In October 1898 a London publication, The Electrician, noted that "there are rare cases where, as Dr. Lodge once expressed it, it might be advantageous to'shout' the message, spreading it broadcast to receivers in all directions". However, it was recognized that this would involve significant financial issues, as that same year The Electrician commented "did not Prof. Lodge forget that no one wants to pay for shouting to the world on a system by which it would be impossible to prevent non-subscribers from benefiting gratuitously?"On January 1, 1902, Nathan Stubblefield gave a short-range "wireless telephone" demonstration, that included broadcasting speech and music to seven locations throughout Murray, Kentucky.
However, this was transmitted using induction rather than radio signals, although Stubblefield predicted that his system would be perfected so that "it will be possible to communicate with hundreds of homes at the same time", "a single message can be sent from a central station to all parts of the United States", he was unable to overcome the inherent distance limitations of this technology. The earliest public radiotelegraph broadcasts were provided as government services, beginning with daily time signals inaugurated on January 1, 1905, by a number of U. S. Navy stations. In Europe, signals transmitted from a station located on the Eiffel tower were received throughout much of Europe. In both the United States and France this led to a small market of receiver lines designed geared for jewelers who needed accurate time to set their clocks, including the Ondophone in France, the De Forest RS-100 Jewelers Time Receiver in the United States The ability to pick up time signal broadcasts, in addition to Morse code weather reports and news summaries attracted the interest of amateur radio enthusiasts.
It was recognized that, much like the telegraph had preceded the invention of the telephone, the ability to make audio radio transmissions would be a significant technical advance. Despite this knowledge, it still took two decades to perfect the technology needed to make quality audio transmissions. In addition, the telephone had been used for distributing entertainment, outside of a few "telephone newspaper" systems, most of which were established in Europe. With this in mind, most early radiotelephone development envisioned that the device would be more profitably developed as a "wireless telephone" for personal communication, or for providing links where regular telephone lines could not be run, rather than for the uncertain finances of broadcasting; the person credited as the primary early developer of AM technology is Canadian-born inventor Reginald Fessenden. The original spark-gap radio transmitters were impractical for transmitting audio, since they produced discontinuous pulses known as "damped waves".
Fessenden realized that what was needed was a new type of radio transmitter that produced steady "undamped" signals, which could be "modulated" to reflect the sounds being transmitted. Fessenden's basic approach was disclosed in U. S. Patent 706,737, which he applied for on May 29, 1901, was issued the next year, it called for the use of a high-speed alternator that generated "pure sine waves" and produced "a continuous train of radiant waves of uniform strength", or, in modern terminology, a continuous-wave transmitter. Fessenden began his research on audio transmissions while doing developmental work for the United States Weather Service on Cobb Island, Maryland; because he did not yet have a continuous-wave transmitter he worked with an experimental "high-frequency spark" transmitter, taking advantage of the fact that the higher the spark rate, the closer a spark-gap transmission comes to producing continuous waves. He reported that, in the fall of 1900, he transmitted speech over a distance of about 1.6 kilometers, which appears to have been the first successful audio transmission using radio signals.
However, at this time the sound was far too distorted to be commercially practical. For a time he continued working with more sophist
In telecommunications, a repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction; some types of repeaters broadcast an identical signal, but alter its method of transmission, for example, on another frequency or baud rate. There are several different types of repeaters. A broadcast relay station is a repeater used in broadcast television; when an information-bearing signal passes through a communication channel, it is progressively degraded due to loss of power. For example, when a telephone call passes through a wire telephone line, some of the power in the electric current which represents the audio signal is dissipated as heat in the resistance of the copper wire; the longer the wire is, the more power is lost, the smaller the amplitude of the signal at the far end. So with a long enough wire the call will not be audible at the other end.
The farther from a radio station a receiver is, the weaker the radio signal, the poorer the reception. A repeater is an electronic device in a communication channel that increases the power of a signal and retransmits it, allowing it to travel further. Since it amplifies the signal, it requires a source of electric power; the term "repeater" originated with telegraphy in the 19th century, referred to an electromechanical device used to regenerate telegraph signals. Use of the term has continued in data communications. In computer networking, because repeaters work with the actual physical signal, do not attempt to interpret the data being transmitted, they operate on the physical layer, the first layer of the OSI model; this is used to increase the range of telephone signals in a telephone line. Land line repeaterThey are most used in trunklines that carry long distance calls. In an analog telephone line consisting of a pair of wires, it consists of an amplifier circuit made of transistors which use power from a DC current source to increase the power of the alternating current audio signal on the line.
Since the telephone is a duplex communication system, the wire pair carries two audio signals, one going in each direction. So telephone repeaters have to be bilateral, amplifying the signal in both directions without causing feedback, which complicates their design considerably. Telephone repeaters were the first type of repeater and were some of the first applications of amplification; the development of telephone repeaters between 1900 and 1915 made long distance phone service possible. Now, most telecommunications cables are fiber optic cables. Before the invention of electronic amplifiers, mechanically coupled carbon microphones were used as amplifiers in telephone repeaters. After the turn of the 20th century it was found that negative resistance mercury lamps could amplify, they were used; the invention of audion tube repeaters around 1916 made transcontinental telephony practical. In the 1930s vacuum tube repeaters using hybrid coils became commonplace, allowing the use of thinner wires.
In the 1950s negative impedance gain devices were more popular, a transistorized version called the E6 repeater was the final major type used in the Bell System before the low cost of digital transmission made all voiceband repeaters obsolete. Frequency frogging repeaters were commonplace in frequency-division multiplexing systems from the middle to late 20th century. Submarine cable repeaterThis is a type of telephone repeater used in underwater submarine telecommunications cables; this is used to increase the range of signals in a fiber optic cable. Digital information travels through a fiber optic cable in the form of short pulses of light; the light is made up of particles called photons, which can be scattered in the fiber. An optical communications repeater consists of a phototransistor which converts the light pulses to an electrical signal, an amplifier to increase the power of the signal, an electronic filter which reshapes the pulses, a laser which converts the electrical signal to light again and sends it out the other fiber.
However, optical amplifiers are being developed for repeaters to amplify the light itself without the need of converting it to an electric signal first. This is used to extend the range of coverage of a radio signal; the history of radio relay repeaters began in 1898 from the publication by Johann Mattausch in Austrian Journal Zeitschrift für Electrotechnik. But his proposal "Translator" was not suitable for use; the first relay system with radio repeaters, which functioned, was that invented in 1899 by Emile Guarini-Foresio. A radio repeater consists of a radio receiver connected to a radio transmitter; the received signal is amplified and retransmitted on another frequency, to provide coverage beyond the obstruction. Usage of a duplexer can allow the repeater to use one antenna for both receive and transmit at the same time. Broadcast relay station, rebroadcastor or translator: This is a repeater used to extend the coverage of a radio or television broadcasting station, it consists of a secondary television transmitter.
The signal from the main transmitter comes over leased telephone lines or by microwave relay. Microwave relay: This is a specialized point-to-point telecommunications link, consisting of a microwave receiver that receives information over a beam of microwaves from an
A slogan is a memorable motto or phrase used in a clan, commercial and other context as a repetitive expression of an idea or purpose, with the goal of persuading members of the public or a more defined target group. The Oxford Dictionary of English defines a slogan as "a short and striking or memorable phrase used in advertising." A slogan has the attributes of being memorable concise and appealing to the audience. The word slogan is derived from slogorn, an Anglicisation of the Scottish Gaelic and Irish sluagh-ghairm. Slogans vary from the visual to the chanted and the vulgar, their simple rhetorical nature leaves little room for detail and a chanted slogan may serve more as social expression of unified purpose than as communication to an intended audience. George E. Shankel's research states that, "English-speaking people began using the term by 1704." The term at that time meant "the distinctive note, phrase or cry of any person or body of persons." Slogans were common throughout the European continent during the Middle Ages.
Crimmins' research suggests that brands are an valuable corporate asset, can make up a lot of a business's total value. With this in mind, if we take into consideration Keller's research, which suggests that a brand is made up of three different components; these include, name and slogan. Brands names and logos both can be changed by the way. Therefore, the slogan has a large job in portraying the brand. Therefore, the slogan should create a sense of likability in order for the brand name to be likable and the slogan message clear and concise. Dass, Kohli, & Thomas' research suggests that there are certain factors that make up the likability of a slogan; the clarity of the message the brand is trying to encode within the slogan. The slogan emphasizes the benefit of the service it is portraying; the creativity of a slogan is another factor that had a positive effect on the likability of a slogan. Lastly, leaving the brand name out of the slogan will have a positive effect on the likability of the brand itself.
Advertisers must keep into consideration these factors when creating a slogan for a brand, as it shows a brand is a valuable asset to a company, with the slogan being one of the three main components to a brands' image. The original usage refers to the usage as a clan motto among Highland clans. Marketing slogans are called taglines in the United States or straplines in the United Kingdom. Europeans use the terms baselines, claims or pay-offs. "Sloganeering" is a derogatory term for activity which degrades discourse to the level of slogans. Slogans are used to convey a message about the service or cause that it is representing, it written as a song. Slogans are used to capture the attention of the audience it is trying to reach. If the slogan is used for commercial purposes it is written to be memorable/catchy in order for a consumer to associate the slogan with the product it is representing. A slogan is part of the production aspect that helps create an image for the product, service or cause it's representing.
A slogan can be a few simple words used to form a phrase. In commercial advertising, corporations will use a slogan as part of promotional activity. Slogans can become a global way of identifying good or service, for example Nike's slogan'Just Do It' helped establish Nike as an identifiable brand worldwide. Slogans should catch the audience's attention and influence the consumer's thoughts on what to purchase; the slogan is used by companies to affect the way consumers view their product compared to others. Slogans can provide information about the product, service or cause its advertising; the language used in the slogans is essential to the message. Current words used can trigger different emotions; the use of good adjectives makes for an effective slogan. When a slogan is used for advertising purposes its goal is to sell the product or service to as many consumers through the message and information a slogan provides. A slogan's message can include information about the quality of the product.
Examples of words that can be used to direct the consumer preference towards a current product and its qualities are: good, real, great, perfect and pure. Slogans can influence. Slogans offer information to consumers in an creative way. A slogan can be used for a powerful cause; the slogan can be used to raise awareness about a current cause. A slogan should be clear with a supporting message. Slogans, when combined with action, can provide an influential foundation for a cause to be seen by its intended audience. Slogans, whether used for advertising purpose or social causes, deliver a message to the public that shapes the audiences' opinion towards the subject of the slogan. "It is well known that the text a human hears or reads constitutes 7% of the received information. As a result, any slogan possesses a support
KLTN is a Regional Mexican radio station broadcasting in Houston, United States. Owned by Univision Radio, its studios are in Uptown Houston and the transmitter is located on the historic KNUZ tower, along with sister station KAMA-FM, at 315 N. Ennis Street in the East End. 102.9 signed on the air as KPRC-FM at 3 pm, December 24, 1946, when the station moved from the 99.7 frequency. Calls changed to KHGM in November 1958. By April 1959 the station had moved again, back to the middle of the FM dial at 99.1 MHz, where it is now known as KODA. Broadcasting returned to 102.9 FM when KQUE signed on the air with an adult standards format on October 1, 1960, co-owned by Dave Morris who owned 1230 AM, KNUZ. The station a "superpower FM" but was lowered to normal power after the tower was extended in the 1970s, was known as "KQ 103" until 1997, when the station was purchased from its local owner, Dave Morris, by Robert F. X. Sillerman and his company, SFX Broadcasting. At 4 p.m. on March 19, 1997, the KQUE callsign and standards format were moved to 1230 AM, with 102.9 flipping to KKPN, a Modern AC format known as "The Planet", under Steve Hick's Capstar Broadcasting ownership.
After a series of mergers, the station came under the ownership of Clear Channel Communications. Clear Channel was forced to spin off several stations in the Houston area to meet Federal Communications Commission ownership restrictions. KKPN, at that time, had the smallest overall coverage area of all the stations in the Clear Channel cluster and it could not move to the 2000 foot Missouri City antenna farm, it was sold to Heftel Communications, a company specializing in Spanish language broadcasting. Heftel changed the station to its current format, moved from the two rimshot facilities 93.3 KLTN and 104.9 KLTO, on March 29, 1998. The station was assigned the current KLTN call letters on June 25, 1998 after being moved from 93.3. Heftel merged with Tichenor Media to create Hispanic Broadcasting, which became Univision Radio, the station's current owner. After nearly 20 years as either "Estereo Latino" or the dial position of "102.9", KLTN has been renamed "Que Buena 102.9" as of April 2018, taking the name used by its sister station KQBU-FM, which itself dropped the brand and format to simulcast its other sister KAMA-FM "Latino Mix 104.9".
It has not been verified whether or not KLTN will swap calls with KQBU-FM to go with the newly christened 102.9 facility, as KLTN would fit the newly formatted 93.3 facility, given the current name LaTiNo Mix. KPRC – 10/1947 KHGM – September 11, 1958 KQUE – January 10, 1960 KKPN – May 23, 1997 KLTN – June 25, 1998 Que Buena Website Query the FCC's FM station database for KLTN Radio-Locator information on KLTN Query Nielsen Audio's FM station database for KLTN
Texas is the second largest state in the United States by both area and population. Geographically located in the South Central region of the country, Texas shares borders with the U. S. states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, the Mexican states of Chihuahua, Nuevo León, Tamaulipas to the southwest, while the Gulf of Mexico is to the southeast. Houston is the most populous city in Texas and the fourth largest in the U. S. while San Antonio is the second-most populous in the state and seventh largest in the U. S. Dallas–Fort Worth and Greater Houston are the fourth and fifth largest metropolitan statistical areas in the country, respectively. Other major cities include Austin, the second-most populous state capital in the U. S. and El Paso. Texas is nicknamed "The Lone Star State" to signify its former status as an independent republic, as a reminder of the state's struggle for independence from Mexico; the "Lone Star" can be found on the Texan state seal.
The origin of Texas's name is from the word taysha. Due to its size and geologic features such as the Balcones Fault, Texas contains diverse landscapes common to both the U. S. Southern and Southwestern regions. Although Texas is popularly associated with the U. S. southwestern deserts, less than 10% of Texas's land area is desert. Most of the population centers are in areas of former prairies, grasslands and the coastline. Traveling from east to west, one can observe terrain that ranges from coastal swamps and piney woods, to rolling plains and rugged hills, the desert and mountains of the Big Bend; the term "six flags over Texas" refers to several nations. Spain was the first European country to claim the area of Texas. France held a short-lived colony. Mexico controlled the territory until 1836 when Texas won its independence, becoming an independent Republic. In 1845, Texas joined the union as the 28th state; the state's annexation set off a chain of events that led to the Mexican–American War in 1846.
A slave state before the American Civil War, Texas declared its secession from the U. S. in early 1861, joined the Confederate States of America on March 2nd of the same year. After the Civil War and the restoration of its representation in the federal government, Texas entered a long period of economic stagnation. Four major industries shaped the Texas economy prior to World War II: cattle and bison, cotton and oil. Before and after the U. S. Civil War the cattle industry, which Texas came to dominate, was a major economic driver for the state, thus creating the traditional image of the Texas cowboy. In the 19th century cotton and lumber grew to be major industries as the cattle industry became less lucrative, it was though, the discovery of major petroleum deposits that initiated an economic boom which became the driving force behind the economy for much of the 20th century. With strong investments in universities, Texas developed a diversified economy and high tech industry in the mid-20th century.
As of 2015, it is second on the list of the most Fortune 500 companies with 54. With a growing base of industry, the state leads in many industries, including agriculture, energy and electronics, biomedical sciences. Texas has led the U. S. in state export revenue since 2002, has the second-highest gross state product. If Texas were a sovereign state, it would be the 10th largest economy in the world; the name Texas, based on the Caddo word táyshaʼ "friend", was applied, in the spelling Tejas or Texas, by the Spanish to the Caddo themselves the Hasinai Confederacy, the final -s representing the Spanish plural. The Mission San Francisco de los Tejas was completed near the Hasinai village of Nabedaches in May 1690, in what is now Houston County, East Texas. During Spanish colonial rule, in the 18th century, the area was known as Nuevo Reino de Filipinas "New Kingdom of the Philippines", or as provincia de los Tejas "province of the Tejas" also provincia de Texas, "province of Texas", it was incorporated as provincia de Texas into the Mexican Empire in 1821, declared a republic in 1836.
The Royal Spanish Academy recognizes both spellings and Texas, as Spanish-language forms of the name of the U. S. State of Texas; the English pronunciation with /ks/ is unetymological, based in the value of the letter x in historical Spanish orthography. Alternative etymologies of the name advanced in the late 19th century connected the Spanish teja "rooftile", the plural tejas being used to designate indigenous Pueblo settlements. A 1760s map by Jacques-Nicolas Bellin shows a village named Teijas on Trinity River, close to the site of modern Crockett. Texas is the second-largest U. S. state, with an area of 268,820 square miles. Though 10% larger than France and twice as large as Germany or Japan, it ranks only 27th worldwide amongst country subdivisions by size. If it were an independent country, Texas would be the 40th largest behind Zambia. Texas is in the south central part of the United States of America. Three of its borders are defined by rivers; the Rio Grande forms a natural border with the Mexican states of Chihuahua, Nuevo León, Tamaulipas to the south.
The Red River forms a natural border with Arkansas to the north. The Sabine River forms a natural border with Louisiana to the east; the Texas Panhandle has an eastern border with Oklahoma at 100° W, a northern border with Oklahoma at 36°30' N and a western
Frequency is the number of occurrences of a repeating event per unit of time. It is referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency; the period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example: if a newborn baby's heart beats at a frequency of 120 times a minute, its period—the time interval between beats—is half a second. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals, radio waves, light. For cyclical processes, such as rotation, oscillations, or waves, frequency is defined as a number of cycles per unit time. In physics and engineering disciplines, such as optics and radio, frequency is denoted by a Latin letter f or by the Greek letter ν or ν; the relation between the frequency and the period T of a repeating event or oscillation is given by f = 1 T.
The SI derived unit of frequency is the hertz, named after the German physicist Heinrich Hertz. One hertz means. If a TV has a refresh rate of 1 hertz the TV's screen will change its picture once a second. A previous name for this unit was cycles per second; the SI unit for period is the second. A traditional unit of measure used with rotating mechanical devices is revolutions per minute, abbreviated r/min or rpm. 60 rpm equals one hertz. As a matter of convenience and slower waves, such as ocean surface waves, tend to be described by wave period rather than frequency. Short and fast waves, like audio and radio, are described by their frequency instead of period; these used conversions are listed below: Angular frequency denoted by the Greek letter ω, is defined as the rate of change of angular displacement, θ, or the rate of change of the phase of a sinusoidal waveform, or as the rate of change of the argument to the sine function: y = sin = sin = sin d θ d t = ω = 2 π f Angular frequency is measured in radians per second but, for discrete-time signals, can be expressed as radians per sampling interval, a dimensionless quantity.
Angular frequency is larger than regular frequency by a factor of 2π. Spatial frequency is analogous to temporal frequency, but the time axis is replaced by one or more spatial displacement axes. E.g.: y = sin = sin d θ d x = k Wavenumber, k, is the spatial frequency analogue of angular temporal frequency and is measured in radians per meter. In the case of more than one spatial dimension, wavenumber is a vector quantity. For periodic waves in nondispersive media, frequency has an inverse relationship to the wavelength, λ. In dispersive media, the frequency f of a sinusoidal wave is equal to the phase velocity v of the wave divided by the wavelength λ of the wave: f = v λ. In the special case of electromagnetic waves moving through a vacuum v = c, where c is the speed of light in a vacuum, this expression becomes: f = c λ; when waves from a monochrome source travel from one medium to another, their frequency remains the same—only their wavelength and speed change. Measurement of frequency can done in the following ways, Calculating the frequency of a repeating event is accomplished by counting the number of times that event occurs within a specific time period dividing the count by the length of the time period.
For example, if 71 events occur within 15 seconds the frequency is: f = 71 15 s ≈ 4.73 Hz If the number of counts is not large, it is more accurate to measure the time interval for a predetermined number of occurrences, rather than the number of occurrences within a specified time. The latter method introduces a random error into the count of between zero and one count, so on average half a count; this is called gating error and causes an average error in the calculated frequency of Δ f = 1 2 T
KOVE-FM is a Spanish-language radio station serving the Houston and Galveston areas from Galveston, Texas. KOVE-FM is owned by a division of Univision Communications; the studios are in Uptown Houston and the transmitter is in Santa Fe, Texas. This specific facility, licensed to Galveston in 1990, is in no way related to the previous Galveston station launched in 1968 as KGBC-FM sold and moved to 106.5 FM, re-licensed as KUFO in 1974. That facility, with shifting ownership and declining fortunes, became KXKX in 1979 and KQQK; the original 106.5 signed off forever in 1986 having its license cancelled by the FCC in March 1989. This incarnation of 106.5 was licensed and signed on January 8, 1990, retaining the KQQK calls used by the former KUFO facility before its license was surrendered nearly a year earlier. The new KQQK became a wildly successful Tejano format, utilizing a bilingual approach in both music and presentation, its branding was its dial position and calls, spoken as "1-oh-6-5, Kah-Koo-Koo-Kah".
The popular Tejano format proved to be a hit with 2nd and 3rd generation Mexican Americans living within the coverage area, remained well rated throughout the 1990s, a vital partner and asset to the Mexican-American community for over a decade. In July 2001, this facility was sold to Univision predecessor Hispanic Broadcasting Corporation, forcing KQQK, Inc. to move the waning Tejano format to the sister Beaumont facility KXTJ, another rimshot signal to Houston, but with less penetration into Houston proper, where the Tejano format collapsed and was replaced by a Spanish Dance format, leaving AM 980 KRTX as Houston's sole broadcast home for "Puro Tejano" music. KRTX became a Spanish Christian formatted station itself. With the format and calls of KQQK now moved to 107.9 in Beaumont, 106.5 temporarily assumed the KQBU callset and continued simulcasting KQQK for a brief period. Towards the end of July 2001, Spanish language Romantic Adult Contemporary "K-Love" debuted on KQBU, which coincided with the second call change inside a month to the current KOVE.
K-Love would continue, for the next decade. During this period, KOVE upgraded to 98 kilowatt, 598 meter HAAT operations. First given the name "Recuerdo" adjusting to "Más Variedad", 106.5 has become a Spanish Adult Hits format that blends the larger hits of the grupero, regional Mexican and contemporary ballad music styles of Northern Mexico. Most of Más Variedad's music focuses on hits from the 80s and 90s, however, a small percentage of KOVE's playlist expands into more recent music offerings from the 21st Century; the station's slogan is "Más musica y Variedad", translated to English as "More Music and Variety". On February 7, 2018, Univision dropped the "Más Variedad" Spanish Adult Hits format and switched it to Spanish AC as Amor 106.5. The brand returns to Houston a decade when its sister KAMA-FM used the name from 2007 to 2008. KOVE-FM official website Query the FCC's FM station database for KOVE-FM Radio-Locator information on KOVE-FM Query Nielsen Audio's FM station database for KOVE-FM