k band การใช้

• The downside to the K band system was a lack of power in the magnetrons.
• It carries sixty ( NATO K band ) transponders which is used to cover North America.
• The K a band is part of the K band of the microwave band of the electromagnetic spectrum.
• Weak methane absorption was detected in H and K band corresponding to a spectral type of T3.5.
• By the late 1970s this changed to linear polarization and the use of ferrite circulators at both X and K bands.
• It is about 5 magnitudes fainter than the helium-rich primary, about magnitude 10-11 at K band infrared wavelengths.
• To avoid this problem, the original K band was split into a lower band, K u, and upper band, K a.
• The 2MASS survey recorded it at 17th magnitude in red light and 19th magnitude in blue light, while it is a 7th magnitude object in K band infrared.
• Some consideration was given to a system equipped with X band gear for general navigation, and a K band unit that would be used during the bomb run close to the target.
• When radars were first developed at K band during World War II, it was not known that there was a nearby absorption band ( due to water vapor and oxygen in the atmosphere ).
• HD 165185 completed its perihelion passage some 851, 000 years ago when it came within of the Sun, and it is now moving away with a radial velocity K band magnitude of 8.11.
• At a 22 February 1944 meeting, it was decided that the K band work should be combined with ongoing work on improved computing systems to make a single advanced version code-named " Lion Tamer ".
• DSN stations are capable of using the older and lower S band deep-space radio communications allocations, and some higher frequencies on a more-or-less experimental basis, such as in the K band.
• They were originally planned to be equipped with K band, with UHF up-and down-links; they are still operated, and the cross-link technology is used by NASA's TDRSS satellites.
• On 11 February 1942, the German battleships and, the heavy cruiser and more than twenty smaller escort vessels, sailed from K band set had only recently been installed and had never been used in conjunction with the guns.
• Tully and Fisher used K band ) radiation ( a good proxy for stellar mass ), and even tighter when luminosity is replaced by the galaxy's total baryonic mass ( the sum of its mass in stars and gas ).
• The 5sigma depth in a circular aperture of D = 0.6 in the Ks band is 26.2-26.5 in the CDFS, COSMOS and UDS fields respectively at a typical seeing of ~ 0.43.
• In 2009, Cripps produced and played guitar on " Ladies of the Canyon " ( released on Warner Canada in June 2010 ) produced and played guitar on U . K band " Count to Fire " ( released independently summer 2010 ).
• Mnemonic for microwave frequency bands in the increasing wavelengths ( decreasing frequencies ), which are K band, X band, C band, S band, L band, respectively is given by, King Xerxes Can Seduce Lovely princesses " [ 23]
• On April 11, 2010, John debuted the John K Band in Washington, D . C ., performing his original songs, written with lyricists Eric Olson and Indi Riverflow, as well as songs by the Grateful Dead, the Jerry Garcia Band, Phish, and others.