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	Definition: radio horizon
		radio horizon: The locus of points at which direct rays from an antenna are tangential to the surface of the Earth.
		Note: If the Earth were a perfect sphere and there were no atmospheric anomalies, the radio horizon would be a circle.
		In practice, the distance to the radio horizon is affected by the height of the transmitting antenna, the height of the receiving antenna, atmospheric conditions, and the presence of obstructions, e.g., mountains.
	www.atis.org /tg2k/_radio_horizon.html (91 words)

	Definition: radio horizon range
		radio horizon range (RHR): The distance at which a direct radio wave can reach a receiving antenna of given height from a transmitting antenna of given height.
		Note: The radio horizon range in nautical miles, R, is given by the relation R = 1.23(h
		The radio horizon range, R, in nautical miles is also given by the relation R = 2.23(h
	www.atis.org /tg2k/_radio_horizon_range.html (116 words)

	AMS Glossary
		The radio horizon extends beyond the geometric and visible horizons in conditions of normal atmospheric refraction.
		Beyond the radio horizon, surface targets cannot be detected under VHF atmospheric conditions although significant radio power is sometimes detected in the diffraction zone below the horizon.
		Assuming a smooth surface, the distance of the radio horizon is given approximately by the equation
	amsglossary.allenpress.com /glossary/search?id=radio-horizon1 (156 words)

	Horizon Hobby
		Horizon Hobby is a family owned company that is known throughout the industry for its exceptional attention to customer needs, outstanding product expertise and, most importantly, integrity.
		Founded in 1985, Horizon Hobby, Inc. is an international marketer and distributor of radio control (RC) cars, boats, planes and helicopters; model railroad; plastic and die-cast models; and other general hobby products.
		We are also one of the leading developers of radio control hobby products which include many of the biggest names in the industry such as Hangar 9 airplanes, HobbyZone entry level RC sports and Team Losi cars and trucks.
	www.horizonhobby.com /Horizon (233 words)

	Radio horizon (Site not responding. Last check: )
		In telecommunication, radio horizon is the locus of points at which direct rays from an antenna are tangential to the surface of the Earth.
		If the Earth were a perfect sphere and there were no atmospheric anomalies, the radio horizon would be a circle.
		In practice, radio wave propagation is affected by atmospheric conditions, and the presence of obstructions, e.g.
	www.serebella.com /encyclopedia/article-Radio_horizon.html (771 words)

	Horizon Radio - About Us (Site not responding. Last check: )
		Horizon Radio is proud to be a part of the fastest growing city in Europe and we aim to help all charitable and non profit making groups with their local events through publicity.
		Horizon Radio is also the media partner for many local fundraising events such as the Cancer Research UK Race for Life and the Get on Yer Bike event for Cancer research UK at Furzton Lake in July this year.
		Horizon Radio is the official media partner for the National Bowl and we always cover the major events held at the Bowl.
	www.horizonmk.co.uk /aboutus/article/3b0a0e0d-8527-492d-9255-74fd087a6530 (1016 words)

	ROTORY / JR RADIO HORIZON
		Horizon Hobby Distributors, the US distributor for JR Radio, have released their long awaited XF622, JR's answer to gaining their share of the low to mid priced radio market.
		Horizon and JR are targeting the new XF622 system towards the beginner and sport pilot who are currently budgeted for an analog radio, but crave the advantages of a computer system.
		Saving the best feature for last, the XF622 offers one feature that all the "big boy radios" have, and that is the ability to change the throttle curve, pitch curve, aileron rate, elevator rate and gyro sensitivity all with one switch, the "Flight Mode" switch.
	www.rotory.com /radios/jrradio.html (1712 words)

	Antenna Tutorial
		The distance to the horizon is dependent on the height above the surface of the earth.
		This bending is caused by the tendency of a radio wave to travel slower as the density of the air increases.
		When studying the behavior of radio waves in space, it is more convenient to use a path that is a straight line instead of a curve.
	www.keytelemetering.com /9600_Antenna.htm (1045 words)

	Radio-Frequency Communication
		In the early days of radio communications, it was thought that all radio waves propagate in a straight horizontal line from the transmitting antenna to the receiving antenna.
		As an oblique radio wave enters a region of increasing electron density, its phase velocity increases in proportion to the density.
		Radio waves are refracted by the ionized layers and reflected by the earth.
	www.fas.org /spp/military/docops/afwa/U3.htm (8259 words)

	Radio Horizon » 2007 » May
		Radio continues to grapple with how to approach the programming of its HD2 channels.
		Some stations have actually thought out the process, and have devoted some time and resources to these secondary channels that the HD Alliance is heavily marketing.
		As radio has eliminated live overnights and even 7-midnight shifts, there's less room for new talent to grow, learn, and develop.
	www.radiohorizon.com /2007/05 (847 words)

	Digital Radio Update - May 3, 2006
		According to the RFP, the CPB wants to examine at least 50 of the largest public radio markets in the United States and 25 smaller markets where significant service is provided by public radio stations located outside or at the periphery of the market.
		One project goal is to determine the extent of digital coverage issues experienced by public radio listeners on a nationwide basis, and to develop practical, technical solutions and techniques to extend digital coverage to the edge of current analog coverage areas.
		Specifically, radio broadcasters can use the programming as-is for subscription services or can choose to supplement the elements, which include continually refreshed playlists, imaging and spoken-word vignettes, with their own locally customized content to create fully localized radio channels.
	beradio.com /digital_radio_update/Digital_radio_update_050306 (1859 words)

	Negative Horizon » Radio
		I am an 18-year old radio DJ and student from Rochester, New York.
		I have been in online radio for over a year now, and love to listen to it.
		You are currently browsing the archives for the Radio category.
	www.negativehorizon.com /category/entertainment/radio (61 words)

	radio horizon (Site not responding. Last check: )
		This is the straight line of sight horizon where Antenna Height is in feet and the Radio Horizon is in miles.
		The equivalent formula for an antenna height in metres and a radio horizon in kilometres would be
		Note 1: The radio horizon of the transmitting and receiving antennas can be added together to increase the effective communication range.
	en.mcfly.org /radio_horizon (224 words)

	Radio Horizon
		A radio show's cast prepares for the final broadcast.
		In a nutshell, the future is in the "tubes" and as we've talked about in this blog in the past, for radio it's both a content AND delivery issue.
		Not only do we have to put out a product people want and love, it's got to be in the places they find convenient: portable devices like cell phones and iPods, and in ways that afford more control.
	www.radiohorizon.com (958 words)

	Digital Radio Update - May 3, 2006
		One project goal is to determine the extent of digital coverage issues experienced by public radio listeners on a nationwide basis, and to develop practical, technical solutions and techniques to extend digital coverage to the edge of current analog coverage areas.
		Clear Channel Radio is producing programming for 75 new radio channels, which will be made available to alternate media services that some broadcasters view as a threat to terrestrial radio.
		Specifically, radio broadcasters can use the programming as-is for subscription services or can choose to supplement the elements, which include continually refreshed playlists, imaging and spoken-word vignettes, with their own locally customized content to create fully localized radio channels.
	radiomagonline.com /digital_radio_update/Digital_radio_update_050306 (1883 words)

	About Ham Radio
		A radio communications service for the purpose of self-training, intercommunication, and technical investigations carried out by amateurs, that is, duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.
		If you're interested in electronics with particular interest in wireless, ham radio is the ultimate trip: the chance to operate your own wireless station right from your home and be in touch with entire world.
		Repeater stations are located on top of tall buildings or mountains where the "radio horizon" is much greater than from the ground.
	www.hamradioindia.com /abthr/about.htm (1189 words)

	Distance to Horizon (Site not responding. Last check: )
		In reality, the calculated horizon for visual line-of-sight is not the same as the calculated horizon for electromagnetic-wave propagation.
		The calculated radio wave horizon goes beyond the calculated visual horizon due to a combination of direct radiation and reflected ground wave.
		Since radio transmissions involve a transmitting antenna and a receiving antenna, both need to be considered for these calculations.
	www.firestik.com /Tech_Docs/dist2horizon.htm (579 words)

	ARD CD Liner Notes (Site not responding. Last check: )
		This free-for-all market quickly escalated prices of radio real estate and effectively shut out the independent community-oriented broadcasters to make 'radio diversity' a term that only the very wealthy could afford to speak.
		That is why Americans for Radio Diversity was founded in March of 1997 by a group of concerned radio listeners.
		At the very least, learn a little bit more about the issues surrounding radio and microbroadcasting and then write a letter to the FCC -- they DO read them -- stating your concerns and wishes.
	www.radiodiversity.com /ardcd/linernotes.html (322 words)

	Radio Meteor Alert
		Ham radio operators can monitor the action, which may be invisible to the naked eye.
		Data reported yesterday to Science@NASA by an experienced radio meteor observer, Stan Nelson in New Mexico, suggests that enhanced meteor activity may be ongoing as of June 27, 1999.
		Nelson's observation of 46 radio pings per hour was recorded when both the Beta Taurid and June Boötid radiants were low on the horizon from his observing site.
	science.nasa.gov /newhome/headlines/ast28jun99_1.htm (1556 words)

	The Horizon Line: Radio Astronomy
		While driving through rural West Virginia enjoying the spectacular fall foliage and doing the touristy things like riding the Cass Scenic Railroad, I never would have expected to see the world's largest radio telescope tucked in amongst the Appalachian mountains.
		It is all part of the National Radio Astronomy Observatory.
		The National Radio Astronomy Observatory contains several very large satellites, but the biggest one is the star of the show, the Robert C. Byrd Green Bank Telescope.
	www.thehorizonline.com /blog/2006/10/radio-astronomy.html (318 words)

	Radio Flier
		The campaign is running primarily in Seattle and Portland, where, notes Russo, people spend a lot of time in their cars.
		More than half of Horizon’s media budget is devoted to Radio.
		Horizon also sponsors several northwest professional and college sports teams.
	www.newsletterpro.com /display_newsletter.php?newsletter_ID=361 (616 words)

	Standard Horizon HX471S Handheld VHF/FRS Radio
		The Standard Horizon HX471S Submersible 5 Watt Marine VHF is an industry-first DSC portable transceiver capable of transmitting and receiving on Marine VHF and Family Radio Service (FRS).
		If the Standard Horizon HX470S fails for any reason (including water damage) during normal use in the first three years of ownership, Standard Horizon will repair or replace it free.
		Having a portable radio able to communicate on different bands, the possiblities are endless.
	www.tigergps.com /standardhorizonhx471s.html (552 words)

	radio horizon - OneLook Dictionary Search
		We found 4 dictionaries with English definitions that include the word radio horizon:
		Tip: Click on the first link on a line below to go directly to a page where "radio horizon" is defined.
		radio horizon : Glossary of Meteorology [home, info]
	www.onelook.com /?loc=rescb&w=radio+horizon (79 words)

	Radio Ink - The Voice of Radio Revolution
		Horizon Broadcasting Group has moved its corporate headquarters to Boise, Idaho.
		The building will also house Horizon's Boise radio properties (KIJZ-FM and KTPZ-FM) and the front-office staff of the Boise Hawks Baseball Club.
		Horizon has more than 100 employuees in Idaho and Oriegon (60 full time).
	www.radioink.com /HeadlineEntry.asp?hid=51908&pt=archive (103 words)

	Where does the signal go?
		Because many radio paths are not line of sight, the free-space formula must be altered to consider the impact of the real world.
		FM radio stations and TV stations commonly enjoy coverage beyond the radio horizon.
		Coverage beyond the radio horizon is said to be defracted and the actual loss is determined by defraction methods including knife-edging and forward scatter.
	beradio.com /transmission/radio_signal_go (1593 words)

	Sky Map
		This feature is of interest to users who have blockages along their horizons.
		Someone living on a mountainside or next to a large building can plot those objects on the map to better simulate the view of the sky that is available to them at that location.
		The horizon must be defined in a simple text file in a format that is common to the Radio Eyes program or Carte du Ceil.
	www.radiosky.com /rjp3/rjp3help/rjpskymap.htm (743 words)

	Standard Horizon Quantum Class D VHF Radio - Standard Horizon Marine Radios
		The Standard Horizon Quantum GX3500S is an ITU Class D marine transceiver that has been approved by Transport Canada for commercial use on specific vessels.
		STANDARD HORIZON has even built in a Calling feature that allows you to individual alert the GX3500S or RAM+ from the station that is being used.
		Standard Horizon has taken this feature one step further, if any Standard Horizon GPS is connected to the GX3500S the polled position of the vessel is shown on the display of the GPS chart plotter making it easy to navigate to the location of the polled vessel.
	www.lakepowellmarineelectronics.com /sthoqucldvhf.html (707 words)

	Radio New York - Home Page
		But a new dawn is on the horizon, and Radio New York promises to bring some fresh ideas into the local New York City radio market.
		In the coming months, many new, exciting, and engaging programs will be added to the programming slate, as the station follows in the wake of its groundbreaking sister TV station, NYC TV (Channel 25), which is playing a pivotal role in revolutionizing and redefining non-commercial broadcast and cable television.
		Radio France International is now on for a full hour every weekday morning beginning at 5:00 AM.
	www.nyc.gov /html/nycmg/wnyefm/html/home/home.shtml (276 words)

	Horizon (Site not responding. Last check: )
		VHF and UHF radio propagation is often referred to as line of sight.
		The actual radio horizon is usually a tiny bit further than the visual horizon, as much as 15 percent at some frequencies.
		Each has its own horizon, and the line of sight between the two is the "cohorizon" or what distance the two horizons just touch.
	www.chem.hawaii.edu /uham/horizon.html (622 words)

	WRAJ Internet Radio » Where The Music Comes Alive! » On the Horizon - Long Island, NY
		John Anderson, host of the “On The Horizon” show, began with independent music four years ago while producing a segment called “Idiots of the Week”.
		In July 2003, “On The Horizon” (OTH) was born.
		OTH has enjoyed great expansion opportunities since January of this year, and is now heard on six internet radio stations, as well as a FM station, and AM station in the United Kingdom.
	www.wrajradio.com /features/onthehorizon (541 words)

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