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	[No title]
		MMDS (Multichannel Multipoint Distribution Service) is a Multichannel broadcast service that operates in the 2.0 to 2.7 GHz frequency range.
		Construction of the MMDS transmit site can generally be accomplished in a few weeks to a few months whereas a conventional cable TV system may require in excess of three years.
		MMDS transmit sites are located in climate controlled equipment shelters for maximum performance and greater system reliability.
	www.teleset.ru /mmds-eng.htm (1021 words)

	Multichannel Multipoint Distribution Service - Wikipedia, the free encyclopedia
		MMDS is used in the United States and other countries, including Canada, Mexico, Ireland, Brazil, Australia and Pakistan, usually in sparsely populated rural areas, where laying cables is not economically viable.
		The MMDS band uses microwave frequencies from 2 GHz to 3 GHz in range.
		Chorus still broadcast 11-channel analogue MMDS in some areas, though with their recent acquisition by Liberty Global Europe (along with NTL Ireland), it is quite likely their systems will be merged and after suitable upgrading the analogue services will be dropped and be replaced by the DVB-C systems used elsewhere.
	en.wikipedia.org /wiki/MMDS (486 words)

	MMDS Overview
		The MMDS channels are transmitted from an omni-directional or directional antenna having extensive line of sight in all directions.
		MMDS networks are characterized by the limited number of channels available in the low RF bands.
		It has been proposed to assign a new frequency band dedicated to digital MMDS services, but this is impractical in the lower microwave frequencies due to the pressure from alternative video service providers.
	www.wcai.com /mmds.htm (447 words)

	MMDS International
		MMDS International is the core of an "Affiliate Team" of MMDS regional offices delivering professional and caring mobile x-ray and other healthcare services to communities.
		MMDS International, formerly known as Mobile Medical Diagnostics Services, was developed as the core of the business by being the first location of the MMDS, mobile x-ray team.
		MMDS International focuses on supporting current regional offices and aiding in the establishment of new regional offices wherever potential owners would like to base their new businesses.
	www.mobilexray.com (255 words)

	Cable AML
		MMDS is an industry acronym that stands for “Microwave Multi-channel Distribution Systems” -- a technology developed to broadcast multi-channel television from a point of origin called the Headend to a subscriber base within range of the transmitter tower.
		As a wireless alternative to Cable Television, MMDS has been able to provide the same services, and for that reason is also referred to as “Wireless Cable”.
		MMDS was originally developed to broadcast 31 analog TV channels over a 186 MHz wide frequency band from 2.5 to 2.686 GHz.
	www.cableaml.com /website3/broadband_mmds/overview.htm (275 words)

	Daniel Arthur Laprès PUBLICATIONS
		MMDS is the designation adopted by the Federal Communications Commission (the "FCC") in the United States for a service distributing a plurality of commercial television channels using hertzian terrestrial point to multi-point equipment.
		Consequently, adoption of MMDS technology would entail modifications to frequency attributions in those countries; alternatively exploitation of MMDS would have to be limited to a number of channels that would be be less than maximal.
		MMDS operations thus require much less investment than alternative technologies and the gestation period between the investment outlay and its generation of revenues is much shorter.
	www.lapres.net /mmds.html (3948 words)

	About MMDS
		Most of the MMDS franchises were "per-cell" awards, with some differences for geographic reasons (eg, a village being on the border between two cells).
		MMDS operators are excused from carrying RTE and TG4 (but not TV3) channels as a result.
		In the North/UK MMDS is known as MVDS.
	myhome.iolfree.ie /~icdg/cable_mmds.htm (371 words)

	Network Computing \| Feature \| Mobile & Wireless \| MMDS Struggles to Find a Foothold \| Page 1 \| October 29, 2001 (Site not responding. Last check: 2007-09-03)
		MMDS, a broadband wireless technology that's sometimes referred to as wireless DSL or by the more generic term broadband wireless, is a third low-cost option.
		MMDS, which operates in the United States and Canada at 2.5 GHz and in many international markets at 3.5 GHz, is not the only broadband wireless technology available.
		In the case of MMDS, this is typically an Ethernet connection to a wireless modem.
	www.networkcomputing.com /1222/1222f3.html (1372 words)

	Wireless Cable
		Multipoint Multichannel Distribution Service (MMDS) is often used as a synonym for "Wireless Cable." Operators broadcast multiple channels of television or related services at microwave frequencies from an antenna located on a tower, tall building, or mountain.
		From these, eight channels in the E and F groups were reallocated in the early1980s for use by wireless cable, and officially dubbed MMDS channels by the FCC.
		In the case where the local channels are carried on the MMDS system, a single cable is used.
	www.wcai.com /wireless_cable.htm (2546 words)

	Mobile/Cellular Technology - MMDS/LMDS Multipoint Distribution Services - Fixed Wireless - Afghanistan
		MDS and MMDS channels are frequently used in combination with ITFS channels to provide video-entertainment programming to subscribers.
		MMDS is a less complicated, cheaper system to implement.
		When the base station receives the microwave signal and has converted it into a digital bitstream, this is routed through, or 'backhauled' to, the wider network, through which the data or call is delivered to its destination.
	www.mobilecomms-technology.com /projects/mmds (712 words)

	The History of MMDS
		The Justice Department began investigating programmers who refused to deal with MMDS operators and reported their findings to a House Telecommunications Subcommittee hearing in 1987.
		This was an attempt to promote competition in the video marketplace and enhance the MMDS industry's ability to compete with hardwire cable.
		MMDS is no longer the "Poor man's cable," which it was once referred.
	www.datatruck.com /history_of_mmds.htm (1411 words)

	Home Toys Article
		In MMDS they discovered a technology that can be used to deliver multiple channels of video, data and voice signals (typically in a 25 to 30-mile radius), and can offer high-speed Internet access (from several hundred kbps to 10 Mbps) using only slightly modified versions of cable modems.
		MMDS offers two-way potential, and through the utilization of various frequency reuse methods, including antenna sectoring and cellurization, a single channel can support hundreds of users simultaneously.
		MMDS is a microwave-based technology, and as such has to contend with its own unique set of problems.
	www.hometoys.com /htinews/oct00/articles/parks/greeson.htm (2536 words)

	CommSPEED - Making MMDS Work
		The original MMDS hub is situated at the peak of a 7,000-foot mountain.
		In fact, while second-generation MMDS equipment is promising the "Holy Grail" of customer-installable modems and antennas, CommSpeed, for one, has no intention of exploiting these new capabilities to reduce installation staff, Davis says.
		It holds MMDS licenses in eastern Iowa -- including Cedar Rapids, Iowa City and Davenport -- in Clarksville, Tenn., Athens and Chillicothe in Ohio and Erie, Penn. The licenses cover a total population of about 1.5 million.
	home.commspeed.net /wn_pr7-30.html (1306 words)

	[No title]
		The MMDS system was successfully put on air in December 2001 and INTERNET system (based on Vyyo equipment) in June 2002.
		In August of 2002 MMDS system based on the channellized transmitters ITS-5721 (21psc) was successfully put on air in Tver city together with the representatives of the company ESTA-TELECOM.
		Later on, another MMDS system like the previous one was successfully put on air in Kaluga city.
	www.teleset.ru /proects-eng.htm (1147 words)

	WorldCom adds wireless MMDS area
		MMDS is not readily available because service providers are waiting for next-generation equipment to come to market, says Lindsay Schroth, an analyst at The Yankee Group.
		Next-generation MMDS gear that equipment vendors such as ADC, Cisco and Vyyo are working on removing the line-of-sight restraints of today's MMDS, she says.
		MMDS service providers also have to apply to the Federal Communications Commission for a two-way license for each city where they are deploying service.
	www.networkworld.com /news/2001/0820carrier.html (1211 words)

	MMDS, Wireless Broadband Access and the Last Mile
		Since two-way MMDS is often configured as a multipoint-to-point network, the broadband capacity delivered to individual users depends on how the system is engineered for parameters such as network concentration, and percent users of users on-line.
		One of the assumptions within the MMDS industry is that the initial supercell systems will be followed by smaller cellular deployments using frequency reuse.
		The non-LOS MMDS channel is typically modeled as Rayleigh fading, with RMS delay spread between 1 µsec and 5 µsec, and Doppler of 0.5 Hz to 2 Hz.
	rfdesign.com /mag/radio_mmds_wireless_broadband (3548 words)

	Multichannel Multipoint Distribution Service - a Whatis.com definition
		Multichannel Multipoint Distribution Service (MMDS) is a broadcasting and communications service that operates in the ultra-high-frequency (UHF) portion of the radio spectrum between 2.1 and 2.7 GHz.
		In MMDS, a medium-power transmitter is located with an omindirectional broadcast antenna at or near the highest topographical point in the intended coverage area.
		The MMDS frequency band has room for several dozen analog or digital video channels, along with narrowband channels that can be used by subscribers to transmit signals to the network.
	searchsecurity.techtarget.com /gDefinition/0,294236,sid7_gci505606,00.html (315 words)

	MMDS
		If MMDS service is offered in your area then it will typically cost about as much as cable or DSL service.
		Most of the new systems using NLOS OFDM have recently become available - just when the MMDS license holders such as Worldcon and Sprint are flat on their backs with bankruptcy or heavy debt problems.
		You can't blame them - if MMDS finally takes off the market will be large and the companies won't have to duke it out on price with every company in the Far East able to put ICs on a board.
	www.seattlewireless.net /pipermail/dev/2002-August/010224.html (1083 words)

	Merger partners bring wireless home
		With the plan, MMDS broadband technology will become a rival of DSL and cable modems, and is a crucial part of the vision behind the merger of the two companies.
		MMDS originated as a wireless cable television frequency, but remained largely unused until the Federal Communications Commission released digital MMDS frequencies in the 2.1-and 2.5 to 2.7-GHz ranges.
		Included in that MMDS vision are significant plans to target the enterprise market, in particular those companies trying to tie remote workers into the corporate network, according to officials.
	www.infoworld.com /articles/hn/xml/00/02/07/000207hnmmds.html (1716 words)

	MMDS Hits the Airwaves - Technology Information Telecommunications - Find Articles (Site not responding. Last check: 2007-09-03)
		As these technologies jockey for position, fixed broadband wireless through MMDS (multichannel multipoint distribution system) may be the solution that picks up where cable and DSL stop.
		MMDS originated from MDS (multipoint distribution system), where it operated in the 2.15-GHz to 2.16-GHz band for wireless cable television service.
		MMDS systems require line of sight between the hub and subscriber antenna, but companies such as Cisco, WiLAN and Iospan Wireless are developing non-line-of-sight systems.
	www.findarticles.com /p/articles/mi_m0TLC/is_2_35/ai_70711364 (834 words)

	Cable AML
		Cable AML MMDS transmitters can be field upgraded for greater output power or to provide for redundant transmitter operation.
		A fundamental decision in an MMDS system is to determine the type of encoding system that will be used.
		Cable AML’s digital MMDS system in the 2,500 to 2,686 MHz band can be configured to broadcast up to a total of 186 TV programs.
	www.cableaml.com /website3/broadband_mmds/descriptions.htm (1463 words)

	MMDS
		No, the nextnet equipment is MMDS - it connects up to a PC via an Ethernet nic.
		It is interesting to look at the newer MMDS systems such as NextNet, Soma Networks and BeamReach because they show what should eventually be possible for unlicensed spectrum.
		These capabilities, such as the use of smart antenna arrays, and multiple signal path is what is going into the 802.16a/b standard specification.
	www.seattlewireless.net /pipermail/dev/2002-August/010221.html (860 words)

	Wireless Cable (MMDS an ITFS) (Site not responding. Last check: 2007-09-03)
		Where the MMDS license holder is not actively using the band, there may be interest in leasing channels from the license holders.
		As this picture (from from http://www.fcc.gov/wtb/auctions/summary/bandplan.html#mds) shows, MDS, ITFS and MMDS are really one set of licensed spectrum, sharing a common history and on frequencies close enough to have similar characteristics.
		The 20 channels of ITFS and 11 channels of MMDS are really one service, where the ITFS channels are reserved for non-profit and educational use while the MMDS channels were auctioned off in 1996.
	www.beagle-ears.com /lars/engineer/wireless/mmds.htm (416 words)

	Light Reading - Alcatel - Wireless Wonders - Telecom Report
		MMDS service was originally licensed for one-way video transmission to provide an alternative to cable television.
		The filing process to switch the old MMDS licenses over to the new bidirectional licenses is supposed to take place sometime this summer, which means that deployment of two-way services aren't actually allowed yet.
		But MMDS advocates say these impediments can be overcome by dispersing a number of transmitters throughout a market in a cellular architecture and using an advanced modulation solution, like orthogonal frequency-division multiplexing (OFDM) technology.
	www.lightreading.com /document.asp?doc_id=1207&page_number=4 (990 words)

	K5OE, A Helix Feed For Surplus MMDS Antennas)
		The MMDS antenna manufacturers have taken advantage of this inherent dipole characteristic in designing their antennae broader in the H-plane-perpendicular to the dipole's orientation.
		Thus, the focus/Diameter (f/D) ratio of this "typical" MMDS antenna is approximately 0.6 in the in-plane dimension and 0.4 in the perpendicular dimension, referenced to the dipole array feed.
		A critical component of the antenna's overall performance is determined by the accuracy of the placement of the feed's phase center at the prime focus of the dish (9).
	members.aol.com /homebrewpics/mmds-feed/mmds-feed.htm (3370 words)

	What is MMDS?
		MMDS (Multichannel Multipoint Distribution Service) is a broadband wireless point-to-multipoint specification utilizing UHF (Ultra High Frequency) communications.
		Data-transport security is accomplished under MMDS by encrypting traffic flows between the broadband wireless modem and the WMTS (Wireless Modem Termination System) located in the base station of the providers network using Triple DES.
		MMDS may be obsoleted by the newer 802.16 WiMAX standard which is due in 2004.
	www.tech-faq.com /mmds-multichannel-multipoint-distribution-service.shtml (305 words)

	The skinny on MMDS
		MMDS transceivers and base stations in use today must be installed in a line-of-sight configuration.
		Now, as a large company, you may not think MMDS pertains to you, and that local multipoint distribution services, which in theory can run at 2G bit/sec speeds, might be a better fit.
		MMDS can be installed in a matter of days (not the multimonth lead times of dedicated circuits), and the $50-per-month fee for a 2M bit/sec downstream flow beats $500 to $1,000 per month for a T-1, particularly if DSL and cable modem alternatives are not available, say, on your CEO's ranch in Montana.
	www.networkworld.com /newsletters/wireless/2001/00477485.html (609 words)

	MMDS Definition: TechEncyclopedia from TechWeb (Site not responding. Last check: 2007-09-03)
		It was designed initially as a one-way service for bringing cable TV to subscribers in remote areas or in locations that are difficult to install cable.
		MMDS supports approximately 33 analog channels and more than 100 digital channels of TV.
		In late 1998, the FCC opened up the technology for two-way transmission, enabling MMDS to provide data and Internet services to subscribers.
	www.techweb.com /encyclopedia/defineterm?term=mmds (171 words)

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