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Propagation of radio waves beyond the radio horizon
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically
Skywave
Satellite communications company
SkyWave Mobile Communications is a global provider of satellite and satellite-cellular devices in the Machine-to-Machine (M2M) market. Skywave products
SkyWave_Mobile_Communications
Type of radio-wave propagation
Near vertical incidence skywave, or NVIS, is a skywave radio-wave propagation path that provides usable signals in the medium distances range — usually
Near vertical incidence skywave
Near_vertical_incidence_skywave
Type of AM radio station
protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country
Clear-channel_station
Type of motorcycle
The Burgman series of scooters (known in Japan as Skywave) is produced by Suzuki with engine capacities from 125 cc up to 638 cc. Launched in 1998, the
Suzuki_Burgman
Musical artist
produces music as Lord Skywave. He is one half of the Black Ghosts, and records with the producer Lukid as Arclight. Lord's Lord Skywave album borrowed from
Simon_William_Lord
Highest radio frequency that can be used for skywave radio transmission
transmission between two points on Earth by reflection from the ionosphere (skywave or skip) at a specified time, independent of transmitter power. This index
Maximum_usable_frequency
Type of electromagnetic radiation
can reflect off the ionosphere and return to Earth beyond the horizon (skywaves), while much shorter wavelengths bend or diffract very little and travel
Radio_wave
Long distance radar technology
transmitter. The most common type of OTH radar, OTH-B (backscatter), uses skywave or "skip" propagation, in which shortwave radio waves are refracted off
Over-the-horizon_radar
Radio wave propagating along the Earth's surface
contrasts with line-of-sight propagation that requires no medium, and skywave via the ionosphere. Ground wave is important for radio signals below 30
Ground_wave
Behaviour of travelling radio waves
distances beyond the horizon – even transcontinental distances. This is called skywave propagation. It is used by amateur radio operators to communicate with
Radio_propagation
Radio transmission using wavelengths 200-1000 m
broadcasting stations several hundred miles apart. On nights of good skywave propagation, the skywave signals of a distant station may interfere with the signals
Medium_wave
3–30 MHz range of the electromagnetic spectrum
the ionosphere layer in the atmosphere – a method known as "skip" or "skywave" propagation – these frequencies can be used for long-distance communication
High_frequency
Land mobile radio system
ions in the ionosphere. Refracting signals off the ionosphere is called skywave propagation, and the operator is said to be "shooting skip". CB operators
Citizens_band_radio
Incomplete list of medium wave (AM) transmitters in Europe
signal can be received on AM radios across Europe, depending on the power. Skywave propagation at night enables some stations to be heard far beyond the target
List of European medium wave transmitters
List_of_European_medium_wave_transmitters
List of shortwave radio spectrum bands
ionosphere and return to Earth beyond the horizon, a mechanism called skywave or “skip” propagation. They are allocated by the ITU for radio services
Shortwave_bands
American musician
made another major move, this time to Austin, Texas, where he released Skywave in 2017, again on the Detroit label Young Heavy Souls. On June 29, 2021
Eliot_Lipp
300–3000 kHz range of the electromagnetic spectrum
propagate via ground waves and reflection from the ionosphere (called skywaves). Ground waves travel just above the earth's surface, following the terrain
Medium_frequency
Burgman/Skywave series Maxi-scooter Burgman 125 125 Maxi-scooter Burgman Street 125 125 Maxi-scooter Burgman/Skywave 200 200 Maxi-scooter Burgman/Skywave 400
List_of_Suzuki_motorcycles
Radio transmissions using wavelengths between 10 m and 100 m
reflected back to Earth at great distances, beyond the horizon. This is called skywave or "skip" propagation. Thus shortwave radio can be used for communication
Shortwave_radio
Radio transmission using wavelengths above 1000 m
called skywave or "skip" propagation, is not as common as at higher frequencies. Reflection occurs at the ionospheric E layer or F layers. Skywave signals
Longwave
Topics referred to by the same term
of pouring Skip (curling), the captain of a curling team Skip (radio), skywave radio propagation Skips (snack) Skip (detergent), a detergent brand from
Skip
All-news radio station in New York City
(880 AM) being the other. The station's nighttime signal, via ionosphere skywave propagation, reaches much of the eastern half of North America. WINS formerly
WINS_(AM)
Non-commercial use of the radio spectrum
been credited with a number of advancements, notably the discovery of skywave propagation. The origins of amateur radio can be traced to the late 19th
Amateur_radio
Japanese multinational corporation
G Mark Good Design Award to the Skywave 650 in 2003, to the entire Skywave series in 2006 and to the updated Skywave 650LX in 2013. Choinori was a lightweight
Suzuki
Characteristic of electromagnetic radiation
1 and 30 MHz, can be refracted back to Earth by the ionosphere, called skywave or "skip" propagation, thus giving radio transmissions in this range a
Line-of-sight_propagation
Radio station in Chicago, Illinois, United States
large slices of Wisconsin, Indiana, Michigan and Iowa. During nighttime skywave, with a good radio, it is audible over most of the Eastern and Central
WGN_(AM)
Eruption of electromagnetic radiation
radio communications that rely on its level of ionization for skywave propagation. Skywave, or skip, refers to the propagation of radio waves reflected
Solar_flare
Radio station in Fort Wayne, Indiana
station historically was a clear-channel station with extended nighttime skywave range from 1941 until 1999; it was downgraded to a Class B AM signal after
WOWO
Radio navigation system
additional coverage to the mid-Atlantic. During early experiments with LORAN's skywaves, Jack Pierce noticed that at night the reflective layer in the ionosphere
LORAN
Line dividing day and night on a celestial body
"gray-line" or "grey-line" propagation, this signal path is a type of skywave propagation. Under good conditions, radio waves can travel along the terminator
Terminator_(solar)
Layer of the Earth's ionosphere
waves radiated into the sky can return to Earth beyond the horizon. This "skywave" or "skip" propagation technique has been used since the 1920s for radio
Kennelly–Heaviside_layer
C. Crane Skywave SSB Battery Operated Portable Travel Radio AM, FM, Shortwave, NOAA Weather Alert, Scannable VHF Aviation Band and Single Side Bands
C._Crane_Company
Definition of directional radio frequency power
travel by ground wave as is typical for medium or longwave broadcasting, skywave, or indirect paths play a part in transmission, the waves will suffer additional
Effective_radiated_power
Ionized part of Earth's upper atmosphere
and R.H. Barfield conducted radio sounding experiments while looking for skywaves. They established the height of an ionized Kennelly-Heaviside layer, or
Ionosphere
American rock musician (born 1976)
to the Death By Audio space and collective. In 1995, Ackermann formed Skywave with Paul Baker. The duo joined with John Fedowitz on drums and put out
Oliver_Ackermann
Radio station in Assumption, Illinois, United States
WTIM must leave the air from sunset to sunrise to protect the nighttime Skywave signal of WWL. "Facility Technical Data for WTIM". Licensing and Management
WTIM
Independent city in Virginia, United States
Controlled Anarchy". Retrieved April 18, 2017. "Finally: A Tribute To Skywave, The Shoegaze Band Virginia Ignored". June 10, 2015. Retrieved April 18
Fredericksburg,_Virginia
Physical model of propagating energy
certain layers of the ionosphere begins to interact with radio waves (see skywave). This property allows some longer wavelengths (100 m or 3 MHz) to be reflected
Electromagnetic_radiation
Radios operating in the very high frequency maritime mobile band
allowing voice communication. Also in the 1920s, the ionospheric skip or skywave phenomenon was discovered, which allowed lower power vacuum tube transmitters
Marine_VHF_radio
Class of large multielement directional wire radio transmitting antennas
heights of up to 90 m (300 feet) high. Primarily employed for long-distance skywave (or skip) transmission, they emit a beam of radio waves at a shallow angle
Curtain_array
Type of radio propagation
altitudes of about 95–120 km (59–75 mi). The more conventional forms of skywave propagation in the ionosphere's higher F region refract off layers of electrons
Sporadic_E_propagation
New York City-based noise rock band
Island School of Design following the disbanding of his previous group, Skywave, to join APTBS, and become the primary songwriter after the departure of
A_Place_to_Bury_Strangers
Radio station in Eugene, Oregon, United States
dominant Class A station. KKNX must reduce nighttime power to protect the skywave signal of WHAS. KKNX also broadcasts on the following FM translator: "Facility
KKNX
British satellite communications company
Stratos Global Corporation (Stratos) and acquired a 19-per cent stake in SkyWave Mobile Communications Inc., a provider of Inmarsat D+/IsatM2M network services
Inmarsat
Black Information Network radio station in Sweetwater, Florida, United States
directional antenna array (8 towers) to prevent interference to WHSQ's nighttime skywave signal. The transmitter is off the Tamiami Trail (U.S. Route 41) in Everglades
WXBN_(AM)
Crosstalk from two radio transmitters on one channel
structures, except that the groundwave-skywave cancellation occurs almost exclusively at nighttime when skywave propagation is present. Even with frequency
Co-channel_interference
Clear-channel news/talk radio station in Cincinnati
authorization included the requirement that the station limit its nighttime skywave signal toward Canada to the equivalent of 50,000 watts, which led to the
WLW
Periodic change in the Sun's activity
concentration of ozone, allowing increased UVB to reach the Earth's surface. Skywave modes of radio communication operate by bending (refracting) radio waves
Solar_cycle
1953 coronation in the United Kingdom
propeller-driven aircraft. NBC had originally planned to carry the event live via skywave direct from the BBC. However, the station was unable to establish a broadcast-quality
Coronation_of_Elizabeth_II
Radio station in Olney, Illinois, United States
dominant Class A station; WVLN must reduce nighttime power to protect the skywave signal of CFZM. WVLN began broadcasting on November 11, 1947, and ran 250
WVLN
Type of radio antenna
A three-element Yagi–Uda antenna used for long-distance (skywave) communication in the shortwave bands by an amateur radio station. The longer reflector
Yagi–Uda_antenna
Radio station in Chicago, Illinois, United States
portions of five states. At night, its signal routinely reaches 38 states via skywave. WLS participates as an Emergency Alert System primary entry point, serving
WLS_(AM)
Radio station in Waterloo, Iowa
pattern is a cardioid-shaped pattern aimed north. With a good radio, KXEL's skywave signal can be heard after dark throughout much of the Northern Plains States
KXEL
American analytics company
company holds seventeen patents. In 2012, Quake Global partnered with SkyWave Global Communications to create QPRO. This technology was implemented in
Quake_Global
Radio station in Carlisle, Pennsylvania
which it signs off to protect clear channel station WMVP in Chicago from skywave interference. The station's programming is simulcast 24 hours a day on
WIOO
Conduit for signal propagation
horizon, at great distances, even transcontinental distances. This is called skywave propagation. It is used by amateur radio operators to talk to other countries
Transmission_medium
Type of radioteletype mode
relatively low-power equipment (5 watts) to communicate globally using the same skywave propagation used by shortwave radio stations. The International Telecommunication
PSK31
2024 studio album by Frost*
had given him, which gets him off on a path of enlightenment. Disc 1 "Skywaving" – 1:58 "Life in the Wires (Part 1)" – 5:29 "This House of Winter" – 6:09
Life_in_the_Wires
Amateur radio frequency band
and should only be considered a suggestion or guideline. Shortwave bands Skywave "Frequency or wave band allocations", Recommendations for Regulation of
40-meter_band
Radio station in Price, Utah, United States
Utah area. The station is currently owned by Ajb Holdings, LLC. KSLL's skywave signal has been reported in Salt Lake City, Utah and Green River, Wyoming
KSLL
Radio transmitter which emits radio waves in all directions, used as a navigational aid
However, at night one can expect interference even within the DOC because of skywave contamination from stations out of range by day. Therefore, positive identification
Non-directional_beacon
Radio tower in Germany
lattice towers placed 310 m apart. As this antenna produced large amounts of skywave, the area of undistorted fading-free reception - was in spite of its high
Mühlacker_radio_transmitter
Electromagnetic spectrum, 3 Hz – 3000 GHz
over-the-horizon radar, automatic link establishment (ALE) / near-vertical incidence skywave (NVIS) radio communications, marine and mobile radio telephony, CT scan
Radio_spectrum
Radio station in Nicholasville, Kentucky, United States
format. WCGW leaves the air from sunset to sunrise to protect the nighttime skywave signal of WABC in New York City. WABC is a Class A station and its 770
WCGW
Radio station in Portageville, Missouri, United States
Broadcasting Company. KMIS operates as a daytime-only broadcaster to prevent skywave interference with clear-channel stations WEPN in New York City, KTCT in
KMIS_(AM)
CBC broadcasts of the National Hockey League in Canada
city whose team faced the Leafs would listen to the CBC broadcast via skywave (usually via 50,000-watt flagships CBL or CBM); a game often attracted
Hockey_Night_in_Canada
Sirius XM satellite radio channel
It uses JAM Creative Productions' "Warp Factor", "The Flame Thrower," "Skywave" and "Turbo Z" sound effects (made popular in the '80s by Z100 in New York
'80s_on_8
Electromagnetic spectrum 300–3000 MHz
unlike in the HF band there is little to no reflection from the ionosphere (skywave propagation), or ground wave. UHF radio waves are blocked by hills and
Ultra_high_frequency
Method of broadcasting stereo AM radio
prone to its effects (this was an effect that happened primarily with skywave signals. Groundwave or local coverage usually did not suffer from this
C-QUAM
Radio station in Playas de Rosarito, Baja California, Mexico
coastal Southern California and parts of Baja California. At night, the skywave signal extends over much of the West Coast of the United States and Northwestern
XEPRS-AM
Radio station in Mims, Florida, United States
off between sunset and sunrise to avoid interference with the nighttime skywave signal of WHAS. WPGS primarily advertises itself as a classic rock station
WPGS
Type of radio propagation
where other methods of communication are not cost effective. Discussion Skywave propagation, also referred to as skip, is any of the modes that rely on
Non-line-of-sight_propagation
Radio station in Miami
directional array during nighttime hours in order to prevent interference to the skywave signals of the Class A stations. In 1976, The Miami Herald stated that
WQBA
30–300 kHz range of the electromagnetic spectrum
called skywave or "skip" propagation, is not as common as at higher frequencies. Reflection occurs at the ionospheric E layer or F layers. Skywave signals
Low_frequency
American mass media corporation
throughout most of the continent at night, when AM signals travel far due to skywave. CEO Bob Pittman said that the company had been "doing progressive stuff"
IHeartMedia
Class of directive antennas
An ALLISS antenna, a modular type of curtain array used by international shortwave stations for broadcasting to distant areas by skywave.
Reflective_array_antenna
Arrangement of multiple radio towers
directional patterns (usually for daytime groundwave versus nighttime skywave), square arrangements are chosen. Longwave transmitter Europe 1 Transmitter
Tower_array
Radio station in Guymon, Oklahoma
slogan "The Five State Big talker." The station has been received via skywave in Salt Lake City, Utah. On June 2, 2020, KGYN was granted an FCC construction
KGYN
Spectral line of hydrogen state transition in UHF radio frequencies
National Imagery and Mapping Agency. p. 158. Retrieved April 28, 2023. Skywaves are not used in the UHF band because the ionosphere is not sufficiently
Hydrogen_line
De facto standard in radio communications
points as the situation demands. When combined with Near Vertical Incidence Skywave (NVIS) techniques and sufficient channels spread across the spectrum, an
Automatic_link_establishment
Radio station in Henderson, Kentucky, United States
sunrise, with the signal oriented to the southwest; this protects the skywave signal of CJBC as 860 AM is a Canadian clear-channel frequency. In 1943
WSON
Amateur radio frequency band
60-meter (5 MHz) band is an ideal candidate for near vertical incidence skywave (NVIS), the most commonly used technique capable of providing seamless
60-meter_band
British tactical radio system
also be used (using AM or CW) for longer range operation by exploiting skywave and near-vertical incidence propagation techniques. Originally conceived
Larkspur_radio_system
Architectural structure
antenna had an unfavourable vertical radiation pattern, which produced much skywave resulting in a too small fading-free reception area at night, in 1934 a
Ismaning_radio_transmitter
American wireless networking and telecommunications company
Systems MobileNet GlobalTrak SENS Asset Tracking Euroscan InSync Software SkyWave Mobile Communications WAM Technologies Skygistics Inthinc Blue Tree Systems
Orbcomm
Measures an aircraft's height above the terrain
the Heaviside layer and back again, the skywave. Accurately measuring the distance travelled by the skywave, proving it was actually in the sky, was
Radar_altimeter
tall guyed ground-fed antenna mast was built, which, with its stronger skywave, allowed better signals to the British Isles at night as the prevailing
Marnach_transmitter
Digital radio broadcast technology
rates vary depending on day versus night transmission (groundwave versus skywave) and the amount of bits dedicated for error correction (signal robustness)
HD_Radio
Period in American television history, 1950s–1980s
extremely limited technology—unlike AM and shortwave signals that could use skywave propagation to cover large radii, television stations were largely limited
Network_era
Radio station in Sikeston, Missouri, United States
owned by Withers Broadcasting Company of Southeast Missouri, LLC. KRHW's skywave signal has been received as far north as the Quad Cities and Chicago and
KRHW
1950s project by the United States Navy
wireless communication around the curve of the Earth was conducted by skywave ("skip") transmission, in which radio waves are refracted by the Earth's
Communication_Moon_Relay
Radio station in Texarkana, Texas
reduce power during nighttime hours in order to protect the nighttime skywave signal of CFZM. The station was first authorized in 1930 as WQDV in Tupelo
KCMC_(AM)
Definitions of terms used in amateur radio
analog television system used in North America NVIS Near Vertical Incidence Skywave, a propagation mode which uses high-angle radiation to send signals almost
Glossary_of_amateur_radio
Radio station in Olivehurst–Sacramento, California
must reduce nighttime power to 270 watts to prevent interference to the skywave signal of WLS in Chicago, Illinois, a Class A station. The station signed
KSAC_(AM)
Interference with authorized wireless communications
most of their Eastern Bloc allies) used two types of jamming transmitter. Skywave jamming covered a large area, but for the reasons described was of limited
Radio_jamming
Property in optics
enabling long-distance radio communications. See also Radio Propagation and Skywave. Recent research has also demonstrated the existence of materials with
Refractive_index
Radio station in Columbus, Georgia, United States
WDAK must reduce power during nighttime hours in order to protect the skywave signals of the dominant class A stations on the frequency: CBK, CBT and
WDAK
Major radio broadcasting facility at Orford Ness
ground wave propagation; and night-time coverage of much of Europe by skywave propagation. The directional aerial for 1296 kHz (erected in 1978) consists
Orfordness transmitting station
Orfordness_transmitting_station
lightning activity. Alfvén resonator Atmospheric duct Shortwave radio Skywave Tropospheric ducting Spies, Kenneth P. and James R. Wait, Mode calculations
Earth–ionosphere_waveguide
SKYWAVE
SKYWAVE
SKYWAVE
SKYWAVE
Boy/Male
Indian, Punjabi, Sikh
Lord's Support
Boy/Male
Indian
Name of one of the narrators of Hadith
Girl/Female
Hindu, Indian, Tamil, Telugu
Beautiful Swan; Goddess Saraswati
Girl/Female
Arabic
Princess of the Muslims; Maker of Dresses
Girl/Female
Indian
Revelation, Receiving hospitably, Send by God or to come from the havens
Girl/Female
Muslim
High, Eminent, Distinguished
Boy/Male
Hindu
The divine power
Boy/Male
Hindu
Girl/Female
German
Elfin spear.
Female
Italian
Feminine form of Italian Alessandro, ALESSANDRA means "defender of mankind."
SKYWAVE
SKYWAVE
SKYWAVE
SKYWAVE
SKYWAVE