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Topic: Frequency allocation

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Electromagnetic spectrum

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	OET -- Frequency Allocation Table
		The FCC's Table of Frequency Allocations consists of the International Table of Frequency Allocations ("International Table") and the United States Table of Frequency Allocations ("United States Table").
		The FCC's Table of Frequency Allocations is codified at Section 2.106 of the Commission's Rules.
		For the allocation of frequencies the ITU has divided the world into three Regions.
	www.fcc.gov /oet/spectrum/table/Welcome.html (337 words)

	[No title] (Site not responding. Last check: 2007-09-13)
		The minimum band allocated for the use of a network in a given allocation area may be either a constant determined in the licensing stage of the network or a value determined for the entire transmission band, being common to all networks.
		In allocating frequencies for the use of a network, the minimum bandwidth parameter is of course utilized in such a way that a minimum bandwidth is first allocated for the use of each network.
		To equalize interference, frequency hopping is preferably used in the network, and the frequency hopping patterns utilize all frequencies allocated for the use of the network.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/17575.990408&ELEMENT_SET=DECL (6804 words)

	Ultra high frequency - Wikipedia, the free encyclopedia
		Ultra high frequency (UHF) designates a range (band) of electromagnetic waves whose frequency is between 300 MHz (Wavelength 1 meter) and 3.0 GHz (Wavelength 10 centimetres).
		Waves whose frequency is above the UHF band fall into the microwave or higher bands, while lower frequency signals fall into the VHF or lower bands.
		Modern mobile phones also transmit and receive within the UHF spectrum, and UHF is widely used for two-way radio communication (usually using narrowband frequency modulation, but digital services are on the rise) by both public service agencies and the general public.
	en.wikipedia.org /wiki/Ultra_high_frequency (999 words)

	Frequency allocation - Encyclopedia, History, Geography and Biography
		Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a process known as frequency allocation or spectrum allocation.
		The frequency allocation process traditionally not been concerned with many types of radiation.
		Australian radiofrequency specrum allocations chart (PDF file 139kb) (from the Australian Communications and Media Authority) On 1 July 2005, the Australian Broadcasting Authority and the Australian Communications Authority merged to become the Australian Communications and Media Authority (ACMA).
	www.arikah.net /encyclopedia/Frequency_allocation (324 words)

	Operations Research Management Science - Frequency Allocation
		As a matter of fact, frequency allocation has been modeled as a graph-coloring problem in which nodes represent TRXs, and the presence of an edge forces one to allocate different "colors," i.e., frequencies, to the corresponding nodes because otherwise, there would be too much co-channel interference taking place there.
		The frequency bands used in AMPS are arranged in columns, and it is customary to allocate the frequencies in one or more blocks, each block being taken from one column.
		While this procedure may be convenient for manual allocation and for physical implementation, it adds a hard constraint to the problem, a constraint that many operators are unwilling to drop for fear of upsetting the technicians who perform the implementation by tuning the cavities, or simply because they are change-avert.
	lionhrtpub.com /orms/orms-4-02/frfrequency.html (3241 words)

	[No title]
		The discrete frequency or frequencies on which a C-E equipment or system is authorized to operate within its allocation frequency band at the location(s) designated and within the constraints of the authorizing assignments.
		Applications for frequency allocations shall be initiated by developing commands or procurement activities as early as RF bands of operation are identified.
		Frequency assignment is the process of authorizing a system or equipment to operate on a discrete frequency(ies) and within a specified set of constraints such as power, emission bandwidth, location of antennas, and operating time of day.
	www.naspensacola.navy.mil /groundelectronics/files/02450-001.doc (2127 words)

	[No title]
		Allocations made on a permitted bases were removed from the Radio Regulations at WRC-95 and replaced with an allocation on a primary basis.
		Frequencies for aeronautical operational control (AOC) use are covered by the Recommendation at Annex 10, Volume V, Chapter 4, 4.1.8.1.3, which prescribes that frequencies will be selected from the band 128.825—132.05 MHz for this purpose, subject to regional agreement in areas where a scarcity exists.
		Frequencies are used at a spacing of 150 kHz (Annex 10, Volume I, Chapter 3, 3.1.6.1) and are paired with those of the ILS localizer.
	www.icao.int /anb/panels/acp/WG/F/WGF6/wp11.doc (15080 words)

	PerCon Internet Search Frequency Allocation Table Search Results
		Frequencies in the band 121.9375-122.6875 MHz may be used by aeronautical stations of the Federal Aviation Administration for communication with private aircraft stations only, except that 122.000 and 122.050 MHz may also be used for communication with air carrier aircraft stations concerning weather informa- tion.
		This frequency may be assigned for air traffic control communications at special aeronautical events on the condition that no harmful interference is caused to search and rescue communications during any period of search and rescue operations in the locale involved.
		Except for the frequencies 123.3 and 123.5 MHz which are not authorized for Govern- ment use, the band 123.1125-123.5875 MHz is available for FAA Communications incident to flight test and inspection activities pertinent to aircraft and facility certification on a secondary non-interference basis.
	cix.perconcorp.com /dlsample/allfull.htm (4664 words)

	Article 5 - Frequency allocations
		Frequency bands (slices of the spectrum) are allocated to the different services either worldwide (worldwide allocation) or regionally (regional allocation) - (Nos.
		Exceptions (additional or alternative allocations, different categories of service, etc.) or restrictions on allocations in the Table, usually geographical in a smaller area than the region (country, group of countries), are covered in "footnotes" (French: "renvoi") to the Table.
		Where an allocation occupies the whole of the width of the Table or only one or two of the three columns, this is a worldwide allocation or a Regional allocation, respectively.
	life.itu.int /radioclub/rr/art05.htm (1071 words)

	SurfWax: News, Reviews and Articles On Frequency Allocation
		Maximizing the frequency allocation will enable the country to reap at least Rp 3 trillion (US$319 million) in proceeds from the licensing fees alone, which later can be used to install standard telephone lines down to the village level in several parts of the country that still have no access to telephones...
		The government needs to rearrange telecommunications frequency allocation, which many say is inefficient at present, or risk losing millions of dollars in potential revenue each year, according to an expert...
		In Australia, a five-megahertz frequency allocation for third generation (3G) cellular technology is set at a licensing fee of US$80 million, while in the United States the fee ranges from between $10 million and $20 million.
	telecom.surfwax.com /files/Frequency_Allocation.html (1765 words)

	NTIA: Office of Spectrum Management
		The United States Frequency Allocation Chart is provided in the Adobe Acrobat Portable Document Format (*.pdf).
		U.S. Frequency Allocation Chart as of October 2003 (Adobe Acrobat format) (Adobe Acrobat format).
		Text equivalent version of the U.S. Frequency Allocation Chart as of October 2003 (Adobe Acrobat format).
	www.ntia.doc.gov /osmhome/allochrt.html (185 words)

	IARUWeb: SPECTRUM REQUIREMENTS OF THE AMATEUR AND AMATEUR-SATELLITE SERVICES
		Subsequently, the ARRL petitioned the FCC for secondary allocations in the bands 135.7-137.8 kHz and 160-190 kHz.
		However, when allocating the bands within this range to their amateur service, administrations shall, after prior consultation with administrations of neighbouring countries, take such steps as may be necessary to prevent harmful interference from their amateur service to the fixed and mobile services of other countries.
		This pattern allows amateurs worldwide to pursue their experimental activities within a common frequency allocation, while providing administrations with the flexibility to tailor the width of the amateur allocation and the conditions of sharing in the light of national requirements.
	www.iaru.org /ac-spec06.html (6150 words)

	Frequency Allocation Table (Site not responding. Last check: 2007-09-13)
		For the purpose of frequency allocation, the world is divided into three Regions, as outlined on the attached world map (Picture 1).
		The first and third column refer to allocation of the frequency band for Region 1, while the second and fourth column refer to allocation of the frequency band in Bosnia and Herzegovina.
		In cases when frequency and allocation areas for Region 1 and Bosnia and Herzegovina are the same, columns 1 an 2, or 3 and 4 are attached to one another.
	www.cra.ba /en/freq-mgmt?cid=61 (1710 words)

	CHINESE TAIPEI (Site not responding. Last check: 2007-09-13)
		The spectrum allocation table of region III of ITU Radio Regulations is used as the reference.
		The present version of the frequency allocation table was issued in May 1994.
		Administrative fees, such as frequency usage fee and operating license fees, and other obligations shall be borne by the local agent.
	www.apectelwg.org /apecdata/telwg/16tel/ctaipei.html (1713 words)

	Learn more about Electromagnetic spectrum in the online encyclopedia. (Site not responding. Last check: 2007-09-13)
		The electromagnetic spectrum describes the various types of electromagnetic radiation; they can be described in terms of wavelength, frequency, or energy per photon.
		Use of the radio frequency spectrum is regulated by governments.
		Radio is at the weak end of the spectrum, with low energy and long wavelength.
	www.onlineencyclopedia.org /e/el/electromagnetic_spectrum.html (979 words)

	FICORA - Radio Frequency Regulation 4
		The Frequency Allocation Table, which is annexed to the Regulation, comprises the frequency range 9 kHz - 400 GHz.
		The Radio Frequency Regulation also defines the regulated interfaces referred to in Article 4(1) of the Directive on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (1999/5/EC).
		Frequency utilisation across Europe can be search and compared with EFIS system which is provided by ERO.
	www.ficora.fi /en/index/palvelut/radiotaajuudet/radiotaajuusmaarays4.html (602 words)

	Summit Wireless Frequency Allocations (Site not responding. Last check: 2007-09-13)
		Summit has provided frequency allocations for healthcare facilities (Basset Hospital and Plattsburgh Hospital) and the Albany International Airport - environments where a myriad of operators and devices operating in licensed and unlicensed areas of the spectrum have a significant impact on the design of the wireless networks being deployed.
		Our frequency allocations document everything from radio stations and TV broadcasting frequencies to cellular carrier signals, and local taxi company dispatch frequencies.
		Frequency allocations also provide a blueprint for future expansion, indicating potential problem areas of the RF spectrum, both for expansion of the wireless network, or the addition of other RF-based devices like telemetry equipment, etc.
	www.summitwireless.net /site_survey/frequency_allocation.htm (194 words)

	Sterling Communications, Inc. -AM Frequency Allocation Study Authorization Form
		We will perform the Frequency Search using the most recent FCC information and your search will have the latest available technical information.
		To authorize a Frequency Allocation Study please sign this form and return it to us with your check for $995.00.
		The AM Frequency Search is Step 1 of several steps required to move closer to putting your station on the air.
	www.christianradio.com /sterling/amsearch.html (438 words)

	[No title]
		The frequencies 27.12 MHz (+163 kHz), 925 MHz (+4 MHz), 2.40-2.45 GHz, 5.8 GHz (+75 MHz); and 24.125 GHz (+125 MHz) are designated for industrial, scientific and medical (ISM) purposes, Amateur licensees operating on allocations within these limits must accept interference from ISM equipment.
		Allocated for use by amateur licensees on a temporary basis until further notice.
		These bands are allocated for use by other primary services and Amateur usage is on a secondary service basis, Users of a secondary service cannot claim protection from armful interference from users of a primary or permitted service to which frequencies are already assigned or may be assigned at a later date
	www.radioinfo.co.nz /alocated.htm (298 words)

	Benchmarking Frequency Allocation Strategies
		The focus was predominantly on fixed (or static) frequency allocation for GSM-networks.
		There are only 10 available frequencies in the worst case; the median of available frequencies per cell is 19.
		Especially for the run-time intensive two local search heuristics considered here, namely, Simulated Annealing and Threshold Accepting, the produced frequency plans (and their quality) as well as the run-time (if not set explicitly) depend significantly on the implementation and on how much effort is spent in tuning the program.
	fap.zib.de /problems/COST259/assignments.html (1791 words)

	[No title]
		During the preparation of the Table account was taken of frequency allocations in Region 1 and ECA, to which Turkey belongs.
		The columns indicate frequency band, allocation of frequency band according to ITU-RR Region 1 and CEPT, the allocation of frequency band in Turkey, Turkey utilization, Remarks to utilization, Document, Standarts respectively.
		The name of service, printed in upper case (e.g., RADIONAVIGATION) shows that the frequency band is allocated to the service on a primary basis, the name printed in lower case (e.g., Amateur) indicates that the frequency band is allocated to the service on a secondary basis.
	www.tk.gov.tr /tm/marfl_ing.asp (209 words)

	Spectrum Management - Frequency Allocation
		Sound radio broadcasts using frequency modulation (FM) almost invariably use the VHF band around 100 MHz (87 MHz – 108 MHz in Region 3) which provides better quality than amplitude modulation (AM) at lower MF frequencies for receivers at domestic fixed locations, although FM fades more quickly and is less reliable for moving vehicles.
		The key difference here is between licensed and non-licensed uses of frequency, where unlicensed usage is regulated through equipment approval procedures to ensure the devices conform to regulations governing power levels and operating frequencies.
		Worldwide allocations for FSS are for uplinks, 13.75 to 14.5 GHz, and for downlinks, 10.95 to 11.2 GHz and 11.45 to 11.7 GHz, plus 12.2 to 12.75 GHz for Region 3, mostly using bandwidths of 500 MHz.
	www.trp.hku.hk /e_learning/spectrum/section3.html (2227 words)

	YH2ANT Amateur Radio Homepage: Frequency Allocation (Site not responding. Last check: 2007-09-13)
		Telecommunications makes use of a limited frequency range in the electromagnetic spectrum.
		The available frequencies must be assigned, or allocated, in a way that minimizes interference between the transmitted signals.
		In the United States, frequencies are allocated by the FEDERAL COMMUNICATIONS COMMISSION.
	www.qsl.net /yh2ant/freq.html (93 words)

	Low Frequency Wireless Telecommunications and Shared Frequency-Allocation Links
		Low Frequency operations under the FCC experimental license program will allow amateur use to be coordinated with utility companies on a case-by-case basis, and allow empirical data to be developed on the sharing possibilities in this band for future consideration.
		In addition, amateurs may still make use of the 160-190 kHz band under Part 15 rules, which are much more restrictive, and therefore more protective of PLCs, than the limits proposed in the Notice.
		In part 15 of the FCC rules there is a provision for unlicensed operation in a number of frequency bands.
	www.tfcbooks.com /special/lf/links.htm (1522 words)

	TSCM 101 - Frequency Allocation Basics
		Here is an FCC RF allocation table, add it to your TSCM database and use it to help out during sweeps.
		You may further lookup the channel allocation via a database, and then identify the source by space domain analysis.
		Warning, never rely solely on allocation tables or database entries to determine if a signal is hostile of friendly.
	www.tscm.com /TSCM101alloc2.html (953 words)

	The Hindu : Business : CDMA companies unhappy over frequency allocation delay
		The CDMA operators (who run limited mobility phones) and the equipment manufacturers implied that the imbroglio over allocating an appropriate frequency spectrum was not only delaying the introduction of broadband services by Reliance and Tatas, but was also preventing the subscribers from accessing cheaper hand held phones.
		"If the frequency allocated in India to CDMA companies is consistent with that in North American markets, the price of handsets would come down because of higher volumes.
		Greg Young of the Tatas said the company was prepared to launch broadband services the day proper frequencies were allocated.
	www.hindu.com /2005/02/24/stories/2005022406481800.htm (502 words)

	Anytime Frequency Allocation with Soft Constraints - Carlsson, Ottosson (ResearchIndex)
		Abstract: As is well known, the frequency allocation problem for mobile telephone networks can be approximated by a graph coloring problem where vertices model transmitters, colors model frequencies, and an edge corresponds to a pair of transmitters that must not use the same frequency.
		Global constraints have arisen as a part of the recent trend of integration between traditional operations research techniques (OR)...
		...frequency allocator containing specialpurpose algorithm for cliques of mutually interferring cells.
	citeseer.ist.psu.edu /carlsson96anytime.html (423 words)

	Frequency allocation to Amateur Radio Service (Site not responding. Last check: 2007-09-13)
		Till 1912, radio frequencies used for communication were restricted to the frequencies below 2 MHz (2000 KHz or a wavelength of 150 metres and more) which found utility in short distance communication only.
		The 1906 Berlin Radio Conference allocated medium wave frequencies like 500 and 1000 kHz (600 and 300 metres respectively) to the maritime services and put on restrictions in amateur radio operation in these bands.
		In this conference the radio frequency spectrum was then fixed to range from 10 KHz to 60,000 KHz, i.e.
	www.vigyanprasar.com /ham/FREQ.htm (694 words)

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