Ku band

K u bandKu-bandK u -bandK u KuKu-15 GHz (2cm wavelength)K u -K u bandsKU bands
The K u band is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz).wikipedia
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Microwave

microwavesmicrowave radiationmicrowave tube
The K u band is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz).
Frequencies in the microwave range are often referred to by their IEEE radar band designations: S, C, X, K u, K, or K a band, or by similar NATO or EU designations.

Satellite television

satellitedirect broadcast satellitesatellite TV
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.
Modern systems signals are relayed from a communications satellite on the K u band frequencies (12–18 GHz) requiring only a small dish less than a meter in diameter.

K band (IEEE)

K bandKK-band
The symbol is short for "K-under" (originally Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (K u, K, and K a ) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission.
For this reason the original K band has been split into three bands, K a band, K-band, and K u band as detailed below.

Space Shuttle

Shuttlespace shuttlesSpace Shuttle Program
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.
Additionally, the orbiter deployed a high-bandwidth K u band radio out of the cargo bay.

Communications satellite

satellite communicationssatellitecommunication satellite
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.
Fixed Service Satellites use the C band, and the lower portions of the K u band.

Tracking and data relay satellite

TDRSTDRS ATDRS-A
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.
Each satellite has S band, K u band (1st Gen only), and K a band (2nd gen only) electronic communication systems hardware that operate at different carrier frequencies and also support various data-rates.

International Space Station

ISSInternational Space Station (ISS)Space Station
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.
The US Orbital Segment (USOS) makes use of two separate radio links mounted in the Z1 truss structure: the S band (audio) and K u band (audio, video and data) systems.

Television

TVtelevisedtelevisions
K u band satellites are also used for backhauls and particularly for satellite from remote locations back to a television network's studio for editing and broadcasting.
In DBSTV systems, signals are relayed from a direct broadcast satellite on the K u wavelength and are completely digital.

Radar gun

speed gunradar speed gunradar
Some frequencies in this radio band are employed in radar guns used by law enforcement to detect vehicles speeding, especially in Europe.
Modern radar speed guns normally operate at X, K, K a, and (in Europe) K u bands.

Fixed-satellite service

FSSFixed Service Satellitefixed satellite service
Segments in most of North and South America are represented by ITU Region 2 from 11.7 to 12.2 GHz (Local Oscillator Frequency (LOF) 10.75 to 11.25 GHz), allocated to the FSS (fixed satellite service), uplink from 14.0 to 14.5 GHz.
FSSs operate in either the C band (from 3.7–4.2 GHz) or the FSS K u bands (11.45–11.7 and 12.5–12.75 GHz in Europe, and 11.7–12.2 GHz in North America).

JCSAT-4B

JCSAT-13Lippostar-1
Other satellites that provides K u band covers Indonesia are Palapa D, MEASAT 3/3A, JCSAT-4B, AsiaSat 5, ST 2, Chinasat 11, Korea Telecom Koreasat 8/ABS 2 (2nd half 2013), and SES-8.
Its payload is composed of thirty-two 27 MHz and twelve 36 MHz K u band transponders, for a total bandwidth of 1.296 GHz, and it is used primarily for multi-channel pay per view business.

Transponder (satellite communications)

transponderstransponderbent pipe
There are more than 22 FSS K u band satellites orbiting over North America, each carrying 12 to 48 transponders, 20 to 120 watts per transponder, and requiring a 0.8-m to 1.5-m antenna for clear reception.
So, for example, the ARSAT-1 has 24 IEEE K u band transponders: 12 with a bandwidth of 36 MHz, 8 with 54 MHz, and 4 with 72 MHz, which totals to 1152 MHz, or 32 TPE (i.e., 1152 MHz divided by 36 MHz).

C band (IEEE)

C bandC-bandC
Compared with C-band, K u band is not similarly restricted in power to avoid interference with terrestrial microwave systems, and the power of its uplinks and downlinks can be increased.
For satellite communications, the microwave frequencies of the C band perform better under adverse weather conditions in comparison with the K u band (11.2 GHz to 14.5 GHz), microwave frequencies used by other communication satellites.

MEASAT Satellite Systems

MEASATMEASAT-1MEASAT-2
Other satellites that provides K u band covers Indonesia are Palapa D, MEASAT 3/3A, JCSAT-4B, AsiaSat 5, ST 2, Chinasat 11, Korea Telecom Koreasat 8/ABS 2 (2nd half 2013), and SES-8.
MEASAT 1 had five high-power transponders in Ku band for the direct-to-user service, powered by 112-watt traveling-wave tube amplifiers.

SES-8

first launch to a geosynchronous orbit
Other satellites that provides K u band covers Indonesia are Palapa D, MEASAT 3/3A, JCSAT-4B, AsiaSat 5, ST 2, Chinasat 11, Korea Telecom Koreasat 8/ABS 2 (2nd half 2013), and SES-8.

Electromagnetic spectrum

spectrumspectraspectral
The K u band is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz).

K band (NATO)

K bandK-bandNATO K band
The symbol is short for "K-under" (originally Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (K u, K, and K a ) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission.

Ka band

K a bandKa-bandK a
The symbol is short for "K-under" (originally Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (K u, K, and K a ) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission.

Water vapor

water vapourvaporevaporation
The symbol is short for "K-under" (originally Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (K u, K, and K a ) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission.

NASA

National Aeronautics and Space AdministrationNASA Advisory CouncilU.S. space program
K u band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station (ISS) communications.

Backhaul (telecommunications)

backhaulbackhaul networkbackhauling
K u band satellites are also used for backhauls and particularly for satellite from remote locations back to a television network's studio for editing and broadcasting.

Broadcasting

broadcastbroadcasterbroadcasters
K u band satellites are also used for backhauls and particularly for satellite from remote locations back to a television network's studio for editing and broadcasting.

International Telecommunication Union

ITUInternational Telecommunications UnionInternational Telecommunication Union´s
The band is split by the International Telecommunication Union (ITU) into multiple segments that vary by geographical region.

NBC

National Broadcasting CompanyNBC-TVNBC Television
NBC was the first television network to uplink a majority of its affiliate feeds via K u band in 1983.