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IEEE Ku band
Frequency range
12–18 GHz
Wavelength range
2.5–1.67 cm
Related bands
J (NATO)
SHF (ITU)
Radio bands
ITU
1 (ELF)
2 (SLF)
3 (ULF)
4 (VLF)
5 (LF)
6 (MF)
7 (HF)
8 (VHF)
9 (UHF)
10 (SHF)
11 (EHF)
12 (THF)
EU / NATO / US ECM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
IEEE
HF
VHF
UHF
L
S
C
X
Ku
K
Ka
V
W
mm
Other TV and radio
I
II
III
IV
V
VI
v
t
e
The Ku band (/ˌkeɪˈjuː/) is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally German: Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (Ku, K, and Ka) 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. In radar applications, it ranges from 12 to 18 GHz according to the formal definition of radar frequency band nomenclature in IEEE Standard 521–2002.[1][2]
Ku 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 International Space Station (ISS) communications and SpaceX Starlink satellites.[3] Ku 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. The band is split by the International Telecommunication Union (ITU) into multiple segments that vary by geographical region. NBC was the first television network to uplink a majority of its affiliate feeds via Ku band in 1983.
Some frequencies in this radio band are employed in radar guns used by law enforcement to detect vehicles speeding, especially in Europe.[4]
^IEEE Std 521 - 2002 URL only available to IEEE members
^Note that in the band 11.2–12 GHz the working definitions of Ku band and X band overlap; satellite communications engineers would generally regard frequencies above 11.2 GHz as being part of the Ku band.
^"SpaceX seeks FCC permission for operating all first-gen Starlink in lower orbit". SpaceNews.com. 2020-04-21. Retrieved 2020-04-23.
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absorption band (due to water vapor and oxygen in the atmosphere). To avoid this problem, the original K band was split into a lower band, Ku, and upper band, Ka...
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converts a band of frequencies from a lower frequency to a higher frequency. Modern BUCs convert from the L band to Kuband, C band and Ka band. Older BUCs...
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