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Topic: Radio beam

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	Online Etymology Dictionary
		In ref. to radio broadcasting, attested from 1903, subsequently superseded by radio.
		Radio and television sense is attested from 1908.
		To be on the beam (1941) was originally an aviator's term for "to follow the course indicated by a radio beam." Lewis Carroll may have thought he was inventing beamish in "Jabberwocky," but it is attested from 1530.
	www.etymonline.com /index.php?search=radio (1994 words)

	Radio propagation - Wikipedia, the free encyclopedia
		Radio propagation is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another.
		Skywave propagation, also referred to as skip, is any of the modes that rely on refraction of radio waves in the ionosphere, which is made up of one or more ionized layers in the upper atmosphere.
		Forecasting of skywave modes is of considerable interest to amateur radio operators and commercial marine and aircraft communications, and also to shortwave broadcasters.
	en.wikipedia.org /wiki/Radio_propagation (1124 words)

	Beam steering - Wikipedia, the free encyclopedia
		Beam steering: Changing the direction of the main lobe of a radiation pattern.
		In radio systems, beam steering may be accomplished by switching antenna elements or by changing the relative phases of the rf signals driving the elements.
		In optical systems, beam steering may be accomplished by changing the refractive index of the medium through which the beam is transmitted or by the use of mirrors or lenses.
	en.wikipedia.org /wiki/Beam_steering (100 words)

	Radio Storms on Jupiter
		To catch a radio storm you have to know (1) when Earth will be aligned with the edge of the cone and (2) when Io is in the right position to pour electrical energy into the storm zone.
		Jupiter's cone-shaped radio beam is attached to the planet's magnetic field, which emerges from deep inside Jupiter.
		By tracking the radio beam as it turns, astronomers have managed to measure the rotation rate of the planet's hidden interior with a precision of milliseconds.
	science.nasa.gov /headlines/y2004/20feb_radiostorms.htm?list549941 (1169 words)

	Bear Left!: Right-Wing Radio
		Beam's column was dead-on until he outlined the talk radio options available to Greater Boston's 4 million radio listeners, organizing each talkjock into a neat ideological compartment.
		Beam could have written an insightful piece on the vast wasteland of talk radio in Boston, programming that is so slanted to the right that it calls into question the licensing process of the federal airways.
		Beam doesn't understand that evolution favors speed and intelligence over the status quo, especially one that is old and tired.
	www.bear-left.com /original/2002/0526radio.html (981 words)

	Define radio beam - Definition of radio beam from Free-Online-Dictionary.org (Site not responding. Last check: 2007-10-31)
		Limitations in Radio Astronomy First, we define I to be the emitted intensity, A e to be the effective aperature area, and D n to beam the bandwidth.
		Radio Ranges If you want to be more realistic, you can define the bandwidth of the transmitter and the...
		Span Wood Beam Some low cloud mine may contact like the include inside the radio beam my might be built for the ray...
	www.free-online-dictionary.org /define-radio+beam.html (444 words)

	The ``Beam Power'' of Classical Double Radio Sources (Site not responding. Last check: 2007-10-31)
		An important parameter is the beam power or rate at which energy leaves the AGN in the form of a highly collimated outflow and is deposited in the vicinity of the radio hot spot and lobe.
		Important parameters, such as the beam power, may be estimated using the radio properties of the lobe and bridge since these are related to the properties of the shock front.
		The beam power is one of the important ingredients of the characteristic source size that allows classical doubles to be used as a cosmological tool (see the paper of Daly and Guerra at this meeting).
	www.aas.org /publications/baas/v27n4/aas187/S012007.html (297 words)

	beam cb radio antenna (Site not responding. Last check: 2007-10-31)
		Their speciality is in selling beam cb radio antenna online so you know that they have the experience, stock and security to handle your purchase.
		They have satisfied many customers who have bought beam cb radio antenna from them in the past and they are committed to winning over as many more new customers as possible with their great prices and service.
		If a beam cb radio antenna supplier is sufficiently dedicated to their marketing that they develop their own server technology to service beam cb radio antenna customers then you can be quite confident that they are there for the long haul.
	www.antennahub.com /secret-cb-antenna/beam-cb-radio-antenna.html (238 words)

	Radio Ranges
		Aiming a beam from an ocean liner to a lighthouse should be okay, while even momentary aiming from a speeding off-road vehicle should be almost impossible.
		If the transmitter is beamed with an opening angle of 5 degrees, the detector antenna size shrinks to a tenth of a square metre, which is reasonable for almost any purpose.
		The horizon acts to limit some radio transmissions, because radio waves do not travel well through earth, rock, buildings, etc. The Earth's ionosphere is a layer of electrically charged particles (ions) in the upper atmosphere, some 100 kilometres from the surface.
	www.dangermouse.net /gurps/science/radios.html (2941 words)

	Radio Ranges (Site not responding. Last check: 2007-10-31)
		For example, terrestrial radio and TV transmissions are beamed mostly in a horizontal plane, so that most of the power goes to reaching antennae at or near ground level, and little is wasted into the sky or ground.
		If a beam needs to be aimed manually for any reason, require a skill roll against Electronics Operation (Communications), with a -1 penalty for every degree of opening angle less than 10 degrees.
		Once a beam is aimed manually, it may be locked in place, assuming appropriate equipment and no relative motion of transmitter and receiver.
	www.fortunecity.com /tattooine/heinlein/461/Radios.htm (2985 words)

	Radio beam pierces Venus's cloudy veil - 19 May 2001 - New Scientist
		Radio beam pierces Venus's cloudy veil - 19 May 2001 - New Scientist
		A team led by Donald Campbell of Cornell University, using the Arecibo telescope in Puerto Rico, got round this problem by firing a beam of radio waves at the planet.
		While visible light is scattered by the cloud cover, radio waves pass through unhindered.
	www.newscientist.com /article/mg17022911.900.html (278 words)

	[111.03] Developing Radio Beam Geometry and Luminosity Models of Pulsars (Site not responding. Last check: 2007-10-31)
		The polarization properties of radio profiles of gamma-ray pulsars do not suggest that short period pulsars are core dominated, as discussed by the study of Arzoumanian, Chernoff & Cordes (2002).
		The goal of this project is to constrain the viewing geometry for some radio pulsars, especially three-peaked pulse profiles, in order to limit the uncertainty of the magnetic inclination and impact angles.
		We obtain separate spectral indices for the core and cone beams and explore the trends of the ratio of core to cone peak fluxes.
	www.aas.org /publications/baas/v36n5/aas205/1442.htm (309 words)

	Schematics Radio Shack Cb Beam Antenna information and tips (Site not responding. Last check: 2007-10-31)
		During the continued growth and expansion of e-commerce information enterprises grow with electronic commerce innovations An understandable advantage is that e-commerce information retailers have over main street information establishments is that the overall cost of doing business is much less..
		The 3 element cb radio beam antenna supper scaner...
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	www.1stop-satellite-radio.com /cb-radio/schematics-radio-shack-cb-beam-antenna.php (277 words)

	Antennas cb radio beam antennas (Site not responding. Last check: 2007-10-31)
		Sometimes when you're trying to find high-class advice about cb radio beam antennas, you'll find it easier said than done extracting the best information from ill-advised cb radio beam antennas proposals and guidance so it's prudent to know ways of moderating the information presented to you.
		An excellent piece of advice to follow when offered information or advice on a cb radio beam antennas site is to find out who owns the site.
		This may show you who owns the site cb radio beam antennas credentials The easiest way to reveal who owns the cb radio beam antennas web site is to find the sites 'about' page.
	www.shoppingezy.com /antennas/cb-radio-beam-antennas.htm (246 words)

	Radio Beam
		Chambers Electronics have developed Radio Beam Counting Technology to produce a people counter that is the most advanced and reliable trail counter on the market today.
		The counter consists of a radio transmitter and receiver, and operates by detecting the change in radio signal as a person walks between them.
		The sensor has a narrow beam and can therefore discriminate between individuals in groups if the unit is positioned where walkers normally walk in single file.
	www.chambers-electronics.com /People_Counter_RBC_out.htm (386 words)

	Radio Beam
		Source: compiled by the editor from various references; see credits.
		Specialty definitions using "radio beam": absorption cross section, anomalous propagation ♦ beam rider ♦ radar horizon.
		Translations for "radio beam"; alternative meanings/domain in parentheses.
	www.websters-dictionary-online.org /definition/english/ra/radio+beam.html (192 words)

	ZTO tech files : Feature: Satellites Beam Radio New Life (Site not responding. Last check: 2007-10-31)
		When XM Radio emerged in October 2001, a demand for the new technology came from long-haul truck drivers, for whom radio is often the only distraction in an otherwise monotonous routine.
		Because Sirius Radio used to be called CD Satellite Radio, the company developed an early reputation for airing only continuous music and precluding "personality" elements, such as talk show programs or a deejay, according to Sirius spokesman Ron Rodrigues.
		As for Sirius Radio's old name giving people the impression that all they did was play CDs on the air, "that wasn't the case then and it certainly isn't the case now," Rodrigues said.
	techfiles.zambezitimes.com /fulltxt.php?id_news=1711 (1575 words)

	TIME.com: Focused Radio -- Nov. 19, 1928 -- Page 1 (Site not responding. Last check: 2007-10-31)
		His previous inventions have been the invaluable radio compass, the radio fog signal system, the mobile radio beacon to protect ships in fog, the decremeter which measures wave lengths and dampens radio oscillations, the Kolster radio receiving set.
		By lay supposition, such a straight-going beam would be tangential to the earth's curvature and so never reach distant earth points where radio stations may be.
		The Kolster beam may be skillfully aimed at the Heaviside Layer† and be reflected down to its receiving station, just as a pool player bounces a ball from cushion to pocket.
	www.time.com /time/magazine/article/0,9171,928231,00.html (626 words)

	Radio Range Manual
		Since the beam fanned out three degrees from the station, and was three miles wide at 60 miles out, it was considered standard procedure to fly the right edge of the beam for precise navigation.
		On passing the station, usually the sides of the beam you are on have reversed their N or A Morse signals.
		All the necessary radio information is carried on these charts, including the station frequency, the quadrant-identification signal, the elevation above sea level, the identification of the quadrants, and the direction of the four beams.
	www.dc3airways.com /Radio_Range_Manual.html (8297 words)

	Developing Radio Beam Geometry And Luminosity Models Of Pulsars / Physics/Engineering / Celebration of Undergraduate ...
		The polarization properties of radio profiles of gamma-ray pulsars do not suggest that short period pulsars are core dominated, as discussed by the study of Arzoumanian, Chernoff and Cordes (2002).
		Furthermore, the predicted radio luminosity in this model seems to be too large compared to those required by the simulations.
		We obtain separate spectral indices for the core and cone beams and explore the trends of the ratio of core to cone peak fluxes and luminosities.
	www.hope.edu /pr/pressreleases/content/view/full/4127 (216 words)

	cb radio beam antennas
		Distributors of Base CB Radio Antennas, scanner base antennas and CB radio Beam antennas.
		Citizens Band Radio CB radio is intended to...
		Magnet mount mobile CB radio antenna and mobile CB radio beams antennas.
	www.1-for-elec.com /357/cb-radio-beam-antennas.html (179 words)

	Beam Cb Radio Antenna information and tips (Site not responding. Last check: 2007-10-31)
		CB antennas, k40, cb's, cb antennas, citizens band radio, radio cb...
		April 01, 2003 Can it match cb radio beam antenna supper scaner it as a number of dropped calls, hustkler cb radio antenna improve hustler cb eadio antenna call 6 14 wave cb antenna quality cb antenna...
		Predator 10k antennas is the best CB Radio antenna out there.
	www.1stop-satellite-radio.com /cb-radio/beam-cb-radio-antenna.php (305 words)

	google-history.com (Site not responding. Last check: 2007-10-31)
		Radio- beam systems (from navigation) The directional selectivity of loop antennas when they are used as receivers is duplicated when they are used as
		Serving Austin and Central Texas, Beam Systems of Austin specializes in the sale and repair of the Beam Vacuum for home builders and homeowners.
		Teledyne RDI's 4- beam system is more reliable, produces higher quality Teledyne RDI's four- beam system has 25% less variance than a three- beam system.
	www.google-history.com /nl/B/beam_system (289 words)

	CP Beam Base Antenna for CB Radios
		Circular Polarization (CP) is an idea borrowed from FM and TV broadcasters, who were faced with the problem of getting out to both cars (vertical) and homes (horizontal).
		CP is basically a rotating, twisting radio wave containing properties of all polarization angles, including all those in between vertical and horizontal.
		And when transmitting, the fact that your signal contains all types of polarization increases your chance of being heard by both local and skip stations.
	www.cbcintl.com /CP_Beam.htm (332 words)

	Radio Astronomy Software
		Throw your radio telescope beam pattern on the screen and maintain a real time display of what sources are in your antenna pattern.
		The RSP Formatted Multiple Survey Catalog 1.0 This is a compilation of 6734 radio source records of flux greater than or equal to 10 Janskys.
		Telescopes used for the survey included the Parkes radio telescope and telescopes at the Molonglo and Culgoora observatories.
	www.radiosky.com /raware.html (1196 words)

	Spaceflight Now \| Sea Launch Mission Report \| Rocket lofts satellite to beam digital radio across America
		American motorists seeking something new from their car radios received a boost Sunday when a rocket launched from a platform in the middle of the Pacific Ocean and delivered a digital audio broadcasting satellite into orbit.
		They will work in tandem to relay XM Satellite Radio's programming to special receiving radios installed in subscribers' cars and portable units that you can take anywhere.
		By broadcasting radio from overhead satellites and a network of ground repeaters, listeners will be able to hear one station from coast-to-coast.
	www.spaceflightnow.com /sealaunch/xm2 (871 words)

	Radio Beam Antenna For Wireless Computer Networks
		Beam Forming Antennas in Multi-hop Packet Radio," Proc.
		Radio Frequency Systems - - Design and manufacture antenna and cable systems for the wireless markets.
		Wireless Local Area Network: a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol.
	www.wifi-wireless-internet-guidebook.info /wifi/radio-beam-antenna-for-wireless-computer-networks.html (389 words)

	Beam Cb Radio Antenna and other Beam Cb Radio Antenna information (Site not responding. Last check: 2007-10-31)
		RADIO USED: MICROPHONE: ANTENNA: Super Laser 8 Element Beam Pictures, Recordings and Misc: YEAR: 1982 CB...
		is a medium size beam antenna and should be mounted...
		Specializing in unique and hard-to-find CB radio books, plans, kits, modifications, repairs, tech info, and high-performance CB accessories since 1976...
	www.radioshed.co.uk /categories/radios/beam_cb_radio_antenna.html (306 words)

	peterwade.com - Get Back on the Beam (Site not responding. Last check: 2007-10-31)
		Today most commercial flying is done on a radio beam.
		A directional beam is produced to guide the pilot to his destination, and as long as he keeps on this beam he knows that he is safe,
		As soon as he gets off the beam in any direction he is in danger, and he immediately tries to get back on the beam.
	www.peterwade.com /modules.php?name=News&file=print&sid=12 (140 words)

	Beam Cb Antenna and other Beam Cb Antenna information (Site not responding. Last check: 2007-10-31)
		have the beam all assembled its time to tune the antenna...
		The 3 element beam is ideal where size, weight, and...
		either case this mobile CB beam antenna is pure non-sense, and...
	www.radioshed.co.uk /categories/radios/beam_cb_antenna.html (517 words)

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