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Topic: FM broadcast radio

	Broadcast Signals
		This is in contrast to FM radio where the signal is used to modulate the frequency of the carrier.
		When information is broadcast from an FM radio station, the electrical image of the sound (taken from a microphone or other program source) is used to modulate the frequency of the carrier wave transmitted from the broadcast antenna of the radio station.
		The FM band of the electromagnetic spectrum is between 88 MHz and 108 MHz and the carrier waves for individual stations are separated by 200 kHz for a maximum of 100 stations.
	hyperphysics.phy-astr.gsu.edu /hbase/audio/bcast.html (612 words)

	FM radio Information - fm radio
		FM radio is a broadcast technology invented by Edwin Howard Armstrong toronto fm radio stations that uses frequency modulation to provide high-fidelity sound over broadcast am and fm radio waves radio.
		The new york fm radio stations S signal is amplitude-modulated onto a 38kHz suppressed carrier to produce a double-sideband suppressed carrier (DSBSC) signal in the range 23 to 53 kHz.
		It san antonio fm radio stations is normal practice to apply pre-emphasis to the left and right channels before matrixing, and to apply de-emphasis at the receiver after matrixing.
	www.inanot.com /Ina-Electronics_Topics_Em_-_F-/FM_radio.html (1057 words)

	Radio Broadcast Signals
		The FM radio band is from 88 to 108 MHz between VHF television Channels 6 and 7.
		Heterodyning is a method for transferring a broadcast signal from its carrier to a fixed local intermediate frequency in the receiver so that most of the receiver does not have to be retuned when you change channels.
		We now take for granted that one radio receiver can be tuned to any of the locally broadcast radio stations, but if it were not for heterodyning, you would have to have one receiver for each broadcast station.
	hyperphysics.phy-astr.gsu.edu /hbase/audio/radio.html (438 words)

	Radio (Site not responding. Last check: 2007-10-01)
		Radio was used to transmit pictures as television as early as the 1920s.
		Another effect is the shorter radio waves act more like travelling in straight lines that are not back towards the Earth by the ionosphere resulting in a shorter effective reception FM receivers are subject to the capture effect which causes the radio to only the strongest signal when multiple signals appear the same frequency.
		Radio remote control : Use of radio waves to transmit data to a remote object as in early forms of guided missile some early TV remotes and a of model boats cars and aeroplanes.
	www.freeglossary.com /Radio (3102 words)

	Using a first IF of 43.5 MHZ or less in an FM radio in a television tuner - Patent 5146337
		A single tuner in a television receiver is employed for tuning television signals in at least one band of television frequencies, and broadcast FM radio signals in an FM band of frequencies adjacent to the television band of frequencies.
		That is, a particular FM radio signal is selected and converted in frequency from one of the FM radio band of frequencies, to a first intermediate frequency of 43.3 MHz.
		It is also recognized herein that the FM trap should exhibit a frequency response having relatively sharp "skirts" to minimize interference with signals of adjacent television channels, and having a substantially flat band reject region to provide FM signals having a substantially uniform amplitude throughout the FM radio broadcast band.
	www.freepatentsonline.com /5146337.html (4237 words)

	FM broadcasting - Wikipedia, the free encyclopedia
		The original FM broadcast band in the United States until 1946 was on 42 to 50 MHz with 0.2 MHz channel spacing.
		FM started in Australia in 1947 but did not catch on and was shut down in 1961 to expand the television band.
		FM transmitters have been used to construct miniature wireless microphones for espionage and surveillance purposes (covert listening devices or so-called "bugs"); the advantage to using the FM broadcast band for such operations is that the receiving equipment would not be considered particularly suspect.
	en.wikipedia.org /wiki/FM_broadcast_radio (2340 words)

	FM broadcast band - Wikipedia, the free encyclopedia
		Many Japanese radios are designed to be capable of receiving both the Japanese FM band and the CCIR FM band, so that the same model can be sold within Japan or exported.
		If these radios were sold in the USA, for example, the 76-88 section would be marked TV sound for VHF channels 2, 3, 4, 5 and 6, with the 88-108 section band as normal FM.
		Early FM broadcasting in North America originally used the 42-50MHz band (this range was also used by a class of experimental wideband AM starions known as "apex broadcasters") shortly after WW2 the FCC decided to move FM broadcasters to the 88.1-105.9 (later 87.9-107.9) MHz band.
	en.wikipedia.org /wiki/FM_broadcast_band (1440 words)

	The Boston Radio Archives: John Shepard's FM Stations
		Broadcasting the Yankee Network programs just as W1XOJ did, this new station would be capable of reaching a very underserved area of Northern New England, an audience he estimated at nearly a million people.
		While today we take FM for granted, it is interesting to recall that not so long ago, the jury was still out: people agreed that the sound quality was wonderful, but few realised that one day FM would become dominant and AM would recede in importance.
		We who live in New England are fortunate that we were on the cutting edge as FM grew; and no discussion of those formative years is complete without giving credit to John Shepard 3rd for his vision (and to his dedicated staff of engineers for their persistence in the face of overwhelming odds).
	www.bostonradio.org /essays/shepard-fm.html (1646 words)

	Visual Radio - Business information
		Not just for listeners but equally brings together FM radio broadcast stations, mobile operators and content providers to deliver an enhanced and interactive radio experience to the FM audience.
		Visual Radio is sold by HP to broadcasters and mobile operators.
		FM broadcasters – Visual Radio adds a visual and interactive dimension to their current business and helps foster an even stronger relationship with their audience.
	www.visualradio.com /vr/b2b/index.htm (158 words)

	VHF radio DX!
		VHF radio including television and FM broadcast radio intended for a local audience are occasionally capable of long distance reception of hundreds, even thousands of miles during rare, usually unpredictable events.
		FM radio frequency assignment from the Jamaican government
		Matt Sittel's FM radio DXing observations from Omaha, Nebraska.
	www.geocities.com /kw4rz (651 words)

	FM Radio Page Broadcast Radio (FCC) USA (Site not responding. Last check: 2007-10-01)
		FM stands for "Frequency Modulation", which refers to the means of encoding the audio signal on the carrier (center) frequency.
		FM Preliminary Study searches the FM Query for database records on the same channel (cochannel), first-adjacent, second-adjacent, and third-adjacent channels, as well as the intermediate frequency (I.F.) channels.
		Broadcasters are required to comply with the Commission's radiofrequency exposure limits, in coordination with other RF users at the site.
	www.fcc.gov /mb/audio/main/fm.html (1835 words)

	Long-haul 88-108 MHz FM DX from Pacific/Asia
		Since long-haul FM DX signals generally arrive at low angles over the horizon, it is ideal to mount yagi antennas at the maximum practical height possible.
		At FM band frequencies the DX signal is reflected (more correctly, refracted) back to earth at the path midpoint by intense ("spread F") ionization close to the geomagnetic equator.
		The current Australian FM DX distance record is David Headland's reception of KSBS FM 92.1 MHz, Pago Pago, American Samoa, received at Marlo beach, Victoria, Australia, at a distance of 2,972 miles or 4,783 km.
	www.geocities.com /toddemslie/exoticfmdx.html (2919 words)

	FM Query -- FM Radio Technical Information -- Audio Division (FCC) USA
		Search for radio station information in the FM broadcast band (88 MHz to 108 MHz).
		Please refer any comments or suggestions on the FM Query to Dale Bickel, dale.bickel@fcc.gov.
		Only FM records with current engineering data will be retrieved.
	www.fcc.gov /mb/audio/fmq.html (518 words)

	Broadcast FM/MW Radio - Time NZ & A
		Six pips are broadcast, with the start of the 6th pip being the start of the new minute, on many broadcast radio stations.
		NOTE: in the past the reason given for broadcasting time pips only on 'Local' ABC stations was that the ABC would broadcast time pips only when they are accurate.
		Time pips on commercial radio stations are not often heard, but their accuracy is not proven.
	tufi.alphalink.com.au /time/time_broadcast.html (908 words)

	Radio Communications: AM/FM Broadcast Licenses
		An AM and/or FM Broadcast Spectrum Licence is issued to anyone who has first been granted an AM and/or FM Broadcasting Licence from the proper licencing authority within the Government of The Bahamas.
		The spectrum licence allows one to operate on a specific radio frequency within the confines of outlined parameters as would be stated on both the Broadcasting Licence and also the Spectrum Licence.
		In the case of FM broadcasting, there have only been two categories of licences issued, one that is island specific and the other a national licence.
	www.pucbahamas.gov.bs /radio_amfm.php (155 words)

	FM Radio Turns 70
		On June 11, the 70th anniversary of the first FM radio broadcast was celebrated at the site of that broadcast, in Alpine, NJ.
		Reception range of the original FM broadcast band signal was estimated to be about 100 miles.
		At the time of his death he was involved in a patent dispute over his FM radio invention with RCA and other radio manufacturers.
	beradio.com /currents/fm_radio_turns_70/index.html (742 words)

	Whole House FM Transmitter - "We Go The Distance!" (Site not responding. Last check: 2007-10-01)
		Broadcast in FM Stereo throughout your entire home Guaranteed!
		The Whole House FM Transmitter's ability to be powered 4 different ways also makes it one of the most convenient and easy to use FM Transmitter systems on the market.
		We have designed our FM Transmitter to be able to use either a standard 3.5 mm stereo headphone jack or any RCA Audio source with our unique RCA Jack Adapter with Volume Control.
	www.wholehousefmtransmitter.com (257 words)

	Griffin Technology: radio SHARK - FM Radio for Mac/PC
		With radio SHARK, you can record what you are listening to at the moment by selecting record, or you can set radio SHARK to record at a specific date and time.
		radio SHARK also allows time-shift recording to "pause" live radio, although this recording cannot be saved as a file.
		Time-shift recording allows you to pause a live broadcast and return to it moments or hours later and continue where you left off.
	www.griffintechnology.com /products/radioshark/index.php (498 words)

	Home - BSI BROADCAST FM Radio transmitter manufacturer and Broadcasting Equipment
		This 2000W FM amplifier is designed with MOSFET solid-state technology and provides 2 kW of continuous RF power in the FM broadcast band 87.5-108 MHz without tuning.
		ARF1000 - 1000 Watts (1 kiloWatt) FM Amplifier
		This 1 kW FM amplifier is designed with MOSFET solid-state technology and provides 1000 Watts of continuous RF power in the FM broadcast band 87.5-108 MHz without tuning.
	www.broadcastbsi.com (938 words)

	Radio
		Owned by 90 professionals from various fields, it has a main goal - to be a medium that is open to all the sounds, colors and vibrations of the universe.
		Beckley - WJLS 99.5 FM - Country fm radio station in southern West Virginia.
		Radio DX - The only radio show in Sacramento, California showcasing American Indian bands and singers who play and perform modern mainstream music.
	www.oobdoo.com /online/radio.htm (1344 words)

	LinuxElectrons - Silicon Laboratories Introduces Single Chip FM Tuner
		The Si470x is ideal for cellular phones, stand-alone FM radios, PCs, MP3 players, PDAs, USB FM receivers and a variety of portable audio devices where low power consumption and a small footprint are essential.
		The Si4700 FM broadcast radio tuner integrates selectivity filtering, automatic gain control, frequency synthesizer and audio processing.
		Silicon Laboratories also offers the Si4701 incorporating a digital pre-processor for the European Radio Data System (RDS) and the U.S. Radio Broadcast Data System (RBDS), enabling data such as the station ID and song name to be displayed to the user.
	www.linuxelectrons.com /article.php/20050404080505623 (522 words)

	Mixed-Signal ICs - Broadcast Solutions (Site not responding. Last check: 2007-10-01)
		Silicon Laboratories broadcast solutions are highly integrated, single chip ICs for FM radio, satellite-set top box and satellite radio applications.
		The Si470x FM radio tuner IC family is the industry's first to leverage digital integration and 100% CMOS process technology, resulting in a completely integrated solution that requires only one external supply bypass capacitor and less than 10 mm² of board space.
		Offering unmatched integration, the Si470x family allows FM radio reception to be added to a variety of portable devices where board space, performance, low power consumption, and ease of use are essential.
	g.msn.com /9SE/1?http://www.silabs.com/tgwWebApp/public/web_content/products/Broadcast/en/index.htm&&DI=6244&IG=a8f9bb1231994993a4c92fea3c321ef2&POS=7&CM=WPU&CE=7&CS=AWP&SR=7 (334 words)

	Broadcast Radio Communications in the SF Bay Area
		Broadcast Radio Communications in the SF Bay Area
		Below this map are tables that contain many of the broadcast radio stations in the San Francisco Bay area.
		FM Broadcast Radio Communications in the Bay area
	www.acken.com /project/communic/RadioList.html (127 words)

	Student radio station acquires FM broadcast license (Site not responding. Last check: 2007-10-01)
		Ball State University has acquired an FM radio broadcast license from the Federal Communications Commission (FCC) as part of a project to upgrade WCRD-FM, the university's student-managed radio station.
		"Being a part of the nation's seventh largest communications college, this is a major step forward for our radio broadcast program," she said.
		The station broadcasts Ball State sporting events, produces syndicated radio programming, produces charitable CDs that include local and national talent and sponsors many on- and off-campus events.
	www.bsu.edu /uc/article/0,1371,41769-5357-18285,00.html (263 words)

	Radio Stations - Davis Wiki
		An extention of Capital Public Radio(?), operated by CSUS.
		Much less conservative talk radio in the morning, sister of KFBK.
		Except where otherwise noted, this content is licensed under a Creative Commons License.
	daviswiki.org /Radio_Stations (301 words)

	AsiaMedia :: NEPAL: Image Channel FM to broadcast radio programme
		Image Channel Frequency Modulation K.A.T. H 97.9 is to broadcast a radio programme within two to three months outside the Kathmandu Valley from its regional F.M.stations at Bhedetar and Pokhara
		KATHMANDU, Dec 15 - Image Channel Frequency Modulation K.A.T. H 97.9 is to broadcast a radio programme within two to three months outside the Kathmandu Valley from its regional F.M.stations at Bhedetar and Pokhara.
		He, however, said that local software is lacking even in Kathmandu FM stations and therefore have to broadcast non-Nepalese musical programmes.
	www.asiamedia.ucla.edu /article.asp?parentid=5662 (323 words)

	Expanded FM broadcast radio tuner cuts PCB footprint (Site not responding. Last check: 2007-10-01)
		Typical applications include cellular phones, MP3/media players, stand-alone FM radios and a variety of other portable devices where performance, low power consumption and a small footprint are essential.
		The FM tuners offer industry-leading selectivity and sensitivity as well as easily adjustable seek, soft mute and blend, all of which are fundamental to high performance in variable FM broadcast environments.
		Both FM tuners are software driver compatible with the Si4700/1 FM tuners.
	g.msn.com /9SE/1?http://www.mwee.com/printableArticle/?articleID=192000034&&DI=6244&IG=a8f9bb1231994993a4c92fea3c321ef2&POS=5&CM=WPU&CE=5&CS=AWP&SR=5 (194 words)

	[icecast] broadcast FM radio (Site not responding. Last check: 2007-10-01)
		On Wed, May 16, 2001 at 04:43:01PM +0100, ricard at libertysurf.fr wrote: > I want to broadcast FM radio.
		Assuming you are running a UNIX-like OS like *BSD or Linux, that is pretty easy with an FM card like the Hauppauge TV/FM card driving the analog input of a sound card like a Sound Blaster.
		If you want to FM broadcast a stream, then get your self a FM transmitter kit like the Ramsey (http://www.ramseyelectronics.com) FM10A transmitter kit and have the audio card drive it.
	lists.xiph.org /pipermail/icecast/2001-May/000535.html (208 words)

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