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Topic: Glossary of antenna terms

Related Topics

Directional antenna

Cassegrain antenna

Yagi antenna

Glossary of Telecommunication Terms

Fresnel zone

C band

Circular polarization

Ku band

Glossary of telecommunication service terms

Rayleigh distribution

Impedance

Decibel

Glossary of coding terms

VHF

Complex number

	Coleoptera : A Glossary of Entomological Terms.
		A way of setting up of a new colony by a queen, or king and queen in the termites, which involves her/them being sealing her/themselves a way in a small chamber and raising the first group of workers entirely (or almost so) on stored body reserves (fat and often the flight muscles).
		Antenna, particularly of ants, in which there is a distinct angle between two of the segments - usually between the 1
		A slender bristle arising at the apex of the antenna.
	www.coleoptera.org /p1154.htm (8972 words)

	Glossary--UC IPM
		In cotton, this term is applied to varieties with a distinct interruption in growth following fruit set.
		Term applied to strawberry cultivars that produce flowers and fruit all year as long as temperatures are favorable; often used synonymously with day-neutral.
		Term applied to strawberry cultivars that require a period of time with day length shorter than a minimum (about 14 hours) for the induction of flower buds; June-bearing.
	www.ipm.ucdavis.edu /PMG/glossary.html (5904 words)

	RFID Journal — Glossary of Terms - What is RFID, Definition, Radio Frequency Identification Systems (Site not responding. Last check: 2007-10-13)
		Antenna: The tag antenna is the conductive element that enables the tag to send and receive data.
		Antenna gain: In technical terms, the gain is the ratio of the power required at the input of a loss-free reference antenna to the power supplied to the input of the given antenna to produce, in a given direction, the same field strength at the same distance.
		These antennas are used in situations where the orientation of the tag to the reader cannot be controlled.
	www.rfidjournal.com /article/glossary (3379 words)

	Futaba® Glossary of Terms
		Term describing a type of flight pattern, which is characterized by the performance of very specialized aerobatic manuevers below the model's normal stall speed.
		Term used for the horizontal controls used to determine the attitude of the helicopter.
		Slang term for the condition in which the model is set up to fly smoothly and predictably.
	www.futaba-rc.com /glossary.html (7704 words)

	IAB Resources and Research - Glossary of Interactive Advertising Terms
		The Glossary is updated on a regular basis and can be used to define the terms used in the IAB Guidelines.
		a term referring to mobile commerce which is the ability to conduct monetary transactions via a mobile device, such as a WAP-enabled cell phone.
		The internal antenna allows for communication and power with a receiving antenna at the transaction point to transfer information.
	www.iab.net /resources/glossary.asp (10444 words)

	WCIA 3 Stormtracker Weather - Weather Glossary of Terms
		Specifically, the term most often refers to the planetary boundary layer, which is the layer within which the effects of friction are significant.
		In meteorology, the term is used specifically to describe vertical transport of heat and moisture, especially by updrafts and downdrafts in an unstable atmosphere.
		It has come to be used as a term for abnormal warming events which occur, on an average of two or three times a decade and typically last for a few seasons.
	www.wcia.com /weather/glossary.asp (5873 words)

	For Consumers: Glossary of Telecommunications Terms
		A 1992 Cable Act term requiring a cable system to carry signals of both commercial and noncommercial television broadcast stations that are "local" to the area served by the cable system.
		A term used to describe the capability of individuals, businesses and organizations to retain their existing telephone number(s) —— and the same quality of service —— when switching to a new local service provider.
		The term used to describe what occurs when a customer’s long distance service is switched from one long distance company to another without the customer’s permission.
	www.fcc.gov /glossary.html (1645 words)

	Glossary of Terms
		It is proportional to the aperture area of the telescope and inversely proportional to the square of the wavelength.
		A collection of spaced antennas, dishes, mirrors or lenses that when the individuals signals collected are properly summed in the correct phase, can act in unison with the diffraction-limited beam performance of a single element as large as the extreme dimensions of the array.
		A collection of spaced antennas, dishes, mirrors or lenses that when properly excited in the correct phase, can act in unison with the diffraction-limited beam performance of a single element as large as the extreme dimensions of the array.
	www.coseti.org /glossary.htm (1892 words)

	Rainforest Glossary - A: Zoom Rainforests
		If the rainforest term you are looking for is not in the dictionary, please e-mail us.
		Antennae (singular antenna) are sensory appendages attached to the head of some adult insects.
		Antennae are used for the sense of smell and balance.
	www.zoomschool.com /subjects/rainforest/glossary (788 words)

	Abbreviated Glossary of Terms
		Antennas are designed for specific and relatively tightly defined frequencies and are quite varied in design.
		Units are expressed in terms of the logarithm to base 10 of a ratio and are typically expressed in watts.
		A system using two antennas and an intelligent radio that continually senses incoming radio signals, or a transmitted signals success rate, and automatically selects the antenna best positioned to receive or transmit.
	www.wirelesstelcorp.com /glossary_of_terms.htm (2562 words)

	Soundstream \| Enclosure Building » Glossary of Terms
		The term in physics, that refers to a number of vibrations or cycles that occur within a given time.
		A term which describes the relationship between a devices is input and output with regard to signal frequency and amplitude.
		The electrical term used to describe the property that various materials possess to restrict or inhibit the flow of electricity.
	www.soundstream.com /tech-glossary-terms.htm (2818 words)

	Remote Control Helicopter Glossary Of Terms
		The term is more common with R/C airplanes (because you have enough time to say dead stick), but it's a term that describes an emergency landing due to a power loss when the engine quits.
		The term washout mixers, levers or arms are also used in the rc helicopter community and are referring to the mixing arms that connect directly to the top of the swashplate and are mixed with the paddles and main blades through a set of linkages and joints.
		If you know of any terms that should be added then please add them to our list by adding your glossary terms here.
	www.heliguy.com /nexus/glossary.html (5098 words)

	Glossary
		The term refers to the family of digital video compression standards and file formats developed by the group.
		However, PCS is commonly used as a marketing term to describe an array of two-way digital wireless service offerings in the Americas, regardless of the particular frequency band being used.
		ROI is typically measured in monetary terms, such as dollars, but can also be measured by benefits that are more difficult to quantify, such as increased customer satisfaction.
	www.cdmatech.com /resources/glossary.jsp (6304 words)

	Glossary
		Accuracy: a measure of how close the results of an experiment are to the true value; a measure of the correctness of the result.
		Antenna: a device for radiating or receiving radio waves.
		Intensity: the measure, in terms of degrees, of ground shaking and damage to the surface and the effects on humans by earthquakes.
	scign.jpl.nasa.gov /learn/glossary.htm (1635 words)

	Glossary of Coastal Terms
		The term may be applied to any size of feature, from small-scale ‘etching’ to the regional development of hills and valleys controlled by hard and soft rocks.
		The terms maximum flood and minimum flood are applied to the maximum and minimum velocities of a flood current the velocity of which alternately increases and decreases without coming to slack or reversing.
		The term is also applied to the entire period of low velocity near the time of turning of the current when it is too weak to be of any practical importance in navigation.
	www.csc.noaa.gov /text/glossary.html (15870 words)

	Glossary of Telecommunications Terms
		Antenna: A device for transmitting and/or receiving electromagnetic waves, which is attached to a tower or other structure.
		Antenna Height: The vertical distance measured from the base of the antenna support structure at grade to the highest point of the structure.
		Omnidirectional Antenna: An antenna that is equally effective in all directions and whose size varies with the frequency and gain for which it is designed.
	www.duxburyvermont.org /teleterms.html (1716 words)

	Quality - Glossary of Semiconductor Quality Terms
		Candidate device: A term used by MIL-M-38510 to designate a device which has been or will be subjected to a specified test or screening flow but has not yet successfully completed that testing.
		When the source and the substrate are grounded and a positive voltage is applied to the gate, a conductive sheet of negative charge (N-channel) is created in the surface of the substrate under the dielectric.
		Thermal resistance: Normally stated in terms of °C/W, it is the indicator of the package's ability to dissipate the heat generated by the chip during operation.
	www.national.com /quality/glossary_quality.html (8772 words)

	Glossary of DTV Terms
		Term used to refer to televisions that are modularly thin.
		Term used to refer to televisions whose display screen is "flat" instead of curved at corners and edges.
		This occurs when the antenna picks up multiple signals in addition to the original signal due to reflection from objects or other distortions.
	www.dtvscoop.com /glossary_of_dtv_terms.php (2641 words)

	Glossary of Electronic and Engineering Terms 'D'
		A common type of half-wave antenna made from a straight piece of wire cut in half.
		The degree of sharpness of the antenna beam.
		In Boolean algebra the law which states that if a group of terms connected by like operators contains the same variable, the variable may be removed from the terms and associated with them by the appropriate sign of operation (for example, A(B + C) = AB + AC).
	www.interfacebus.com /Glossary-of-Terms_D3.html (419 words)

	Glossary of Radio Astronomy Terms
		The terms localized and extended are relative and depend on the angular resolution of the telescope observing them.
		A representation of the luminosity of an object in terms of Solar luminosity.
		A term used to describe celestial objects which have a fuzzy, or nebulous, appearance (from the Latin for cloud.), such as gas, or dust, clouds.
	www.aoc.nrao.edu /~sconrad/glossary.htm (8688 words)

	- Digital TV ~ DTV ~ HDTV ~ Terms Glossary ~ Chattanooga TN.
		This is a term used by the FCC meaning "the product of the antenna power input and the antenna power gain", which is expressed in watts.
		The term used to describe the conversion of a lower apparent resolution to a higher number, such as "upconverting" 720p to 1080i.
		The term used to describe a screen that has an aspect ratio that is wider then the NTSC 4:3 ratio.
	www.riverhillsmanor.com /_www.DTV.Terms.Glossary.html (5221 words)

	SBCA Glossary of Terms
		Official term used by the Federal Communications Commission referring to the satellite television and broadcasting industries.
		C-Band antennas range in size from five to eight feet in diameter, and K-Band antennas range from 18 inches to five feet.
		A traditional term used to describe a home satellite system which only receives, and does not transmit, satellite television signals.
	www.sbca.com /dth_terms.html (966 words)

	ARRLWeb: Glossary of Key Words
		An antenna that is parallel to the surface of the earth, such as a dipole, produces horizontally polarized waves.
		An antenna that has both horizontal and vertical polarization is said to be circularly polarized.
		Also the ratio of antenna impedance to feed-line impedance when the antenna is a purely resistive load.
	www.arrl.org /qst/glossary.html (5731 words)

	Wi-Fi Alliance - Glossary - www.wi-fi.org (Site not responding. Last check: 2007-10-13)
		The term refers to digital, packet-switched technology and is used to describe the third-generation of mobile telephony which brings video and broadband Internet access to mobile phones.
		An old term used to describe a wireless network consisting of devices connected to a network using a centralized wireless access point.
		A relatively new term that is used to describe a technology known since the early 1960s as "carrier-free", "baseband" or "impulse".
	www.wi-fi.org /OpenSection/glossary.asp?TID=2 (6961 words)

	Engineering Antenna Terms and Definitions "A"
		Absolute gain: Of an antenna, for a given direction and polarization, the ratio of (a) the power that would be required at the input of an ideal isotropic radiator to (b) the power actually supplied to the given antenna, to produce the same radiation intensity in the far-field region.
		Acceptance pattern: Of an antenna, for a given plane, a distribution plot of the off-axis power relative to the on-axis power as a function of angle or position.
		Note: The acceptance pattern is the equivalent of a horizontal or vertical antenna pattern.
	www.interfacebus.com /Antenna_Terms.html (542 words)

	glass.org - Industry Resources
		A term often used by the public to refer to a stone damage to a windshield.
		The term "fast" is relative to the surrounding temperature and humidity.
		The term used to describe a "cut" on the surface of a glass or mirror with a glass cutter.
	www.glass.org /indres/glossary.htm (5190 words)

	Learning Circuits Glossary
		CBT (computer-based training): An umbrella term for the use of computers in both instruction and management of the teaching and learning process.
		HRD (human resource development): 1) A term coined by Leonard Nadler to describe the organized learning experiences, such as training, education, and development, offered by employers within a specific timeframe to improve employee performance or personal growth.
		Although the term is often used synonymously with Web-based training, Internet-based training is not necessarily delivered over the World Wide Web, and may not use the HTTP and HTML technologies that make Web-based training possible.
	www.learningcircuits.org /glossary.html (10108 words)

	Ace
		A device used to combine antenna and satellite signals, which operate at different frequencies, into a signal, which can travel through one cable.
		A non-amplified diplexer is used at the antenna and satellite dish location when the antenna is not amplified.
		An amplified diplexer is used at the antenna and satellite dish location only when the antenna is amplified.
	www.acehardware.com /sm-glossary-of-audio-video-terms--bg-2289229.html (2876 words)

	Solar Energy Technologies Program: Solar Glossary of Terms
		This term is more common to system designers than it is to the battery industry where capacity usually refers to ampere-hours.
		The term derives from the fact that this microscopically thin region is depleted of charge carriers (free electrons and hole).
		Usually expressed in terms of amperes or watts in reference to electricity.
	www.eere.energy.gov /solar/solar_glossary.html (10388 words)

	Glossary of Aeromodelling and Model Aircraft terms for beginners to Radio Control flying.
		Glossary of Aeromodelling and Model Aircraft terms for beginners to Radio Control flying.
		Term used by pilot to warn other flyers that the engine has stopped.
		Term to describe your plane crashing due to radio interference.
	members.aol.com /bentleyflyers/glossary.html (2152 words)

	Videoconferencing Services - Glossary of Terms
		The term is also used to describe systems concerned with sound with recording and transmission; speech pickup systems, transmission links that carry sounds, amplifiers and the like.
		This term describes the strength of the signal leaving the videoconference antenna or the transmitting earth station antenna.
		A term used to describe the placement of shared documents on an on-screen "shared notebook" or "whiteboard." Videoconferencing software includes tools that enable you to work with familiar tools to mark up the electronic whiteboard much like you do with a traditional wall mounted board.
	www.ohsu.edu /vcs/glossary (3739 words)

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