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...William I. |title=Beam Antenna Handbook |edition=5th |year=1976 |publisher=Radio Publications |pages=185–186}}</ref> ''[[Archimedean spiral]] antennas'' are ...m the center outwards. The direction of rotation of the spiral defines the direction of antenna polarization. Additional spirals may be included as well, to for ...

...that the beam of radio transmission is in the desired direction. The beam direction is controlled by switching power to the desired beam port. More than one b ...nd fixed-value [[phase shifter]]s. Additionally, fine control of the beam direction can be provided with variable phase shifters in addition to the fixed phase ...

...]] (e.g., a [[beam (structure)|beam]]). Span is measured in the horizontal direction either between the faces of the supports ('''clear span''') or between the ...[[power line]]s, overhead telecommunication lines, some type of [[Antenna (radio)|antennas]] or for [[aerial tramway]]s.{{cn|date=December 2023}} ...

...tenna]]s which work together as a single antenna, to transmit or receive [[radio wave]]s.<ref name="Carr">{{cite book ...ted in other directions. Similarly, when used for receiving, the separate radio frequency currents from the individual antennas combine in the receiver wit ...

...after in 1960 the idea of using high-speed computers to solve directional finding problems was embodied, initially to locate earthquake epicenter. B. A. Bolt ...d in parallel, to produce different output signals. The signals from every direction can be estimated simultaneously and integrated for a longer time to increas ...

{{Short description|Type of satellite that transmits over amateur radio frequencies}} {{amateur radio}} ...

...and [[Antenna (radio)|antennas]] and vibrational analysis. In the field of radio astronomy,<ref name="James"/> it is used to synchronize the outputs of an a ...

...</math>) where ''E'' is the energy of the state, since the probability of finding the system in state <math> | \langle x|\Psi(t)\rangle|^2</math> = <math> | ...ce beyond. Magnet 2 produces only a uniform magnetic field in the vertical direction applying no force on the atomic beam, and magnet 3 is actually inverted mag ...

...e radio transmitter from 1938.jpg|thumb|Tuned circuit of a [[shortwave]] [[radio transmitter]]. This circuit does not have a resistor like the above, but al ...ner (electronics)|tuning]] to select a narrow frequency range from ambient radio waves. In this role, the circuit is often referred to as a tuned circuit. A ...

...ers accordingly. He then closed the Enigma again and handed it over to the radio operator. The radio operator's task was to make the external key settings, i.e. to insert the t ...

...r|up-converters]] for a transmitter-driver. In this article, the term RF (radio frequency) covers the frequency range "medium Frequencies" up to "microwave ...2nd Ed. 1982</ref>{{rp|44}}<ref name = Terman>Terman F.E., "Electronic and Radio Engineering", 4th. Ed., 1955</ref>{{rp|435}}<ref name = Vizmuller>Vizmuller ...

...ns at higher frequencies than printed circuits, and this is done in some [[radio frequency]] integrated circuits. This choice is particularly significant fo ...e can be analysed with [[Maxwell's equations]] to determine its behaviour, finding useful structures is a matter of trial and error or guesswork.<ref>Hunter, ...

| direction = vertical |title=Study Confirms Criticism of Big Bang Finding ...

...(Stanford University) and the other by A. Korpel and L.W. Kessler (Zenith Radio Research Labs). The first efforts to develop an operational acoustic micros ...lity control, reliability and failure analysis. Usually the interest is in finding and analyzing internal defects such as delaminations, cracks and voids, alt ...

...mer Burst – Observation of the [[#2007 (Lorimer Burst)|first detected fast radio burst]] as described by Lorimer in 2006.<ref name=Lorimer2007B />{{failed v ...sels|first2=J. W. T.|last3=Lorimer|first3=D. R.|date=2019-05-24|title=Fast radio bursts|journal=The Astronomy and Astrophysics Review|language=en|volume=27| ...

...lly calibrated in reference to factors of weather such as wind speed, wind direction, humidity, and temperature.<ref>Bourne 2005, p. 133</ref> ...provided unique codes for packages and systems and were attached to small radio transponders. The tags allowed for the speedy updates of online databases w ...

...hs can also be used to solve some [[mathematical equations]], typically by finding where two plots [[Line-line intersection|intersect]]. * [[Vector field]] : Vector field plots (or quiver plots) show the direction and the strength of a vector associated with a 2D or 3D points. They are ty ...

...cracks in the medium. The orientation of the fast shear wave records the direction of the cracks in the medium. ...he arrival of split shear waves can be identified by the abrupt changes in direction of the particle motion (Fig.3). ...

...h>\mathcal{F}</math> has <math>k</math> elements.{{r|gy06}} The problem of finding an intersection representation of a graph, using a given number of elements ...rsection number and the edge clique cover number has a short proof. In one direction, suppose that <math>G</math> is the intersection graph of a family <math>\m ...

....005}}, and an inclination of {{val|100.26|0.05|u=°}} (facing the opposite direction as the 2017 study found). Their masses were additionally refined to {{Jupit ...eld2014" /> Their research confirmed the observation of Gillon ''et al.'', finding a large, dark region at the middle latitudes, a bright area near its upper ...