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Topic: Joint Tactical Radio System

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	Intercom News (Site not responding. Last check: 2007-10-14)
		Software-defined radios in the form of the Joint Tactical Radio System, referred to universally as JTRS, have led warfighters throughout the Department of Defense to join forces and look at the RF spectrum from a completely new perspective.
		JTRS is a family of radios that is "platform-agnostic" yet "mission-specific" for each platform, and represents the OSD solution for spectrum dominance.
		In the first iteration of the JTRS system, it was possible to install a variety of different frequencies on available ports, but the number of ports was limited.
	public.afca.af.mil /Intercom/2003/may/13.html (1000 words)

	Harris RF Communications - Joint Tactical Radio System (JTRS)
		The Joint Tactical Radio System (JTRS) is a U.S. military initiative to develop a family of software programmable and modular communications systems that will become the principal means of communications for warfighters in the digital battlefield environment.
		The AN/PRC-117F(C) multiband, multimission radio is a key member of the FALCON® II family selected by the JTRS Joint Program Office of the U.S. Department of Defense for its Step 2B architecture validation activities.
		A contract for the System Development and Demonstration Phase of Cluster 1 was awarded to Boeing Space and Communications Unit, under which Harris is a subcontractor.
	www.rfcomm.harris.com /jtrs.html (524 words)

	NDM Article - Joint Tactical Radio Expected To Meet Special-Warfare Needs
		The next-generation tactical-communications technology—the Joint Tactical Radio System—will provide conventional military units with capabilities that typically are associated with special warfare.
		The initial versions of the new common radios are to span the entire frequency spectrum from 2 MHz to 2 GHz and effectively put several radios in a single box.
		Once the radios are in service, the government, the hardware manufacturer, or a third party may install new plug-and-play waveforms.
	www.nationaldefensemagazine.org /issues/2002/Feb/Joint_Tactical.htm (1453 words)

	Harris RF Communications - Joint Tactical Radio System (JTRS)
		Reliable tactical radio communications are crucial to the success of modern military operations, and current press releases are replete with accounts of corporate activities in this technological arena.
		This radio’s free coverage of what is called “low-band VHF”— i.e., from the low end of the military band all the way through UHF—encompasses the ranges of military ground-to-ground, ground-to-air, and ground-to-satellite frequencies, as well as the bands of most police and other civil defense agencies.
		Decision Systems also manufactures and markets a family of software-defined communication systems for which migration to, and interoperability with, legacy systems is standard, and thus application to prospective homeland security missions almost inevitable.
	www.rfcomm.harris.com /jtrs/mit.html (707 words)

	Radio System Contract Sets Evolutionary Path - U.S. Department of Defense Transformation News (Site not responding. Last check: 2007-10-14)
		The JTRS radios envisioned by the Department of Defense, expected to begin coming on line in the 2011 or 12 timeframe, are based on software development that enables one radio to handle various waveforms, said Charlie Dancy of the MITRE Corp., the team’s engineering lead.
		For the soldier – or tactical air control party member – on the ground, as well as for platform managers dealing with space constraints, there are obvious benefits to no longer needing multiple radios.
		Current radio systems lack interoperability across the spectrum and have insufficient bandwidth to meet all current and anticipated future communications needs.
	www.defenselink.mil /transformation/articles/2006-09/ta092506b.html (689 words)

	Joint tactical radio system fielded soon security (Site not responding. Last check: 2007-10-14)
		Joint tactical radio system fielded soon 11/20/2006 - WASHINGTON (AFPN) -- The Air Force is about to enter a new era in communications technology.
		Officials at the Electronic Systems Center at Hanscom Air Force Base, Mass., have signed a $7.8M contract with Thales Communications, Incorporated, for the delivery of the first Joint Tactical Radio System radios to the Air Force.
		More than 1200 JTRS-enhanced multiband inter/intra team radios, known as JEM radios, will be delivered to civil engineer explosive ordnance disposal units, security forces and air support operations squadrons across the Air Force.
	www.isria.info /FILES/2006/NOVEMBER/11212006__13.htm (460 words)

	Joint Tactical Radio System
		Current radio systems lack interoperability across the spectrum and have insufficient bandwidth to meet present and future communications challenges.
		The Programmable, Modular Communications System is a new initiative to acquire a family of radios for all DoD components.
		The Joint Tactical Radio System (JTRS) is not a new concept.
	www.globalsecurity.org /military/systems/ground/jtrs.htm (1033 words)

	Boeing: Integrated Defense Systems - Airborne and Maritime/Fixed Station Joint Tactical Radio System (AMF JTRS) - AMF ...
		The JTRS is a family of software programmable radios that will ultimately become the primary means of wireless information transfer among mobile military users in the air, on the ground and at sea.
		Software-defined radios, with one set of hardware and a variety of software applications, can operate in a variety of modes and across the frequency spectrum, much like a personal computer is able to perform a variety of functions depending on what software is loaded.
		In addition to JTRS GMR (currently in development by a Boeing-led team for the U.S. Army), a Boeing-led team was awarded a 15-month, $54.6 million contract in 2004 by the U.S. Air Force to develop system architectures and initial designs for the Airborne Maritime and Fixed Station Joint Tactical Radio System (AMF JTRS).
	www.boeing.com /defense-space/ic/amf_jtrs/index.html (830 words)

	Joint Tactical Radio System (JTRS)
		A new family of Software Defined Radios (SDR) currently under development will provide a common platform for wireless applications, ranging from low cost, single purpose terminals, to multi-band, multi-mode, multi-channel voice/data radios supporting narrowband and wideband waveforms.
		Systems conforming to the Soldier Radio Waveform (SRW) will operate at frequencies between 450Mhz and 1000Mhz at Band 2 and 1 from 350Mhz to 2700Mhz in Band 3.
		Other applications of SFF radios include Blue Force Tracking and Combat ID. SRW radios are designed to deliver an instantaneous burst data rate ranging from 450Kbps to 1.2Mbps and 2Kbps to 23.4Kbps, under a low-probability of intercept "stealth" mode which will be almost immune from detection by enemy electronic surveillance.
	www.defense-update.com /products/j/JTRS.htm (472 words)

	TSM update Summer 2001 edition
		The Joint Network Management System is being developed to provide commanders in chief and joint-forces commanders with a joint communications planning and management system.
		Training and Doctrine Command’s system manager for Warfighter Information Network-Tactical and the Signal Center’s combat-developments directorate are studying the DTD to validate existing quantities as well as look at distribution strategies for new versions of the device.
		The near-term digital radio was groomed as an interim radio to communicate among tactical-operations centers.
	www.gordon.army.mil /AC/sumr01/tsmupdt.htm (1063 words)

	New Needs Shape Radio Cluster - Military Information Technology (Site not responding. Last check: 2007-10-14)
		The radios will be software programmable, modular in both hardware and software design and capable of being reconfigured to operate with different waveforms and protocols anywhere in the 2 MHz to 2 GHz band.
		Cluster 1 radios are led by the Army and include ground vehicular and rotary wing aviation variants.
		Initial radios will probably be produced under a low rate initial production award, which is typically used to procure production hardware used to conduct independent testing to certify the systemsâ operational suitability and effectiveness.
	www.military-information-technology.com /print_article.cfm?DocID=142 (1335 words)

	Joint Tactical Radio System (JTRS) - Airborne, Maritime and Fixed Stations (AMF)
		A single radio will be capable of operating on highly secure, high performance military tactical networks in net-centric operations.
		AMF JTRS radios will interoperate with legacy data and voice circuits used by the U.S., allied or NATO military forces, as well as communicate with civilian first-responder voice and data systems used in disaster relief and other national emergencies.
		During the recent demonstration, ground and aerial nodes interfaced in a dynamic joint tactical Mobile Ad hoc Network using an enhanced version of the Ground Mobile Radio (GMR), WNW, SRW and Legacy Link-16 communications.
	www.defense-update.com /products/j/JTRS-AMF.htm (416 words)

	Software-defined radio - Wikipedia, the free encyclopedia
		A software-defined radio (SDR) system is a radio communication system which can tune to any frequency band and receive any modulation across a large frequency spectrum by means of a programmable hardware which is controlled by software.
		The hardware of a software-defined radio typically consists of a superheterodyne RF front end which converts RF signals from (and to) analog IF signals, and analog to digital converter and digital to analog converters which are used to convert a digitised IF signal from and to analog form, respectively.
		It is the enabler of the cognitive radio.
	en.wikipedia.org /wiki/Software_radio (1576 words)

	JTRS SINCGARS Waveform Development Overview
		This high profile waveform is baselined for the various JTRS radio system clusters, beginning with Cluster 1.
		The objective of the Joint Tactical Radio System (JTRS) Program is to define and acquire a family of multi-mode, multi-band, software programmable radios and a common set of communications waveforms to increase operational flexibility, enhance joint interoperability, and reduce life cycle cost.
		During Step 3, The JTRS Radios and Waveforms for each cluster are being developed, and the architecture is continuing to evolve in response to new or changing warfighter requirements and technology advancements.
	www.assurtech.com /SINCGARSover.asp (795 words)

	DefenseLINK News: Air Force-Navy Combine Forces to Develop Joint Radio System
		The decision to combine forces in developing the Joint Tactical Radio System -- a single family of radios designed to replace incompatible units in use across the services -- was made in early November, according to Air Force spokeswoman Maj. Cheryl Law.
		Increasing jointness across the armed forces is a key tenet of Defense Secretary Donald H. Rumsfeld's transformation goals.
		She said initial deliveries of the new radios under the Air Force-Navy program are expected to occur in late 2008.
	www.defenselink.mil /news/Dec2003/n12032003_200312031.html (290 words)

	Tactical radio project substantially weakened
		The Pentagon launched the “joint tactical radio system,” or JTRS, six years ago, with the intent to deploy a family of software radios for all military services.
		Software-based radios such as JTRS — designed to operate as a computer network — are more difficult to protect from hackers than traditional military radios, which have customized crypto devices and are intended for individual services, not for the entire Defense Department.
		This large investment in radios has raised questions about the relevance of JTRS and whether, once the emergency war funds run out, the services will be able to afford the new technology.
	www.nationaldefensemagazine.org /issues/2006/july/TacticalRadio.htm (1137 words)

	GAO-03-879R, Challenges and Risks Associated with the Joint Tactical Radio System Program
		This is the accessible text file for GAO report number GAO-03-879R entitled 'Challenges and Risks Associated with the Joint Tactical Radio System Program' which was released on August 11, 2003.
		The Joint Tactical Radio System (JTRS) program was initiated in 1997 to develop and apply this technology and to bring together separate service-led programs into a joint software- defined radio development effort.
		JTRS radios are intended to interoperate with existing radio systems and provide the war fighter with additional communications capability to access maps and other visual data, communicate via voice and video with other units and levels of command, and obtain information directly from battlefield sensors.
	www.gao.gov /htext/d03879r.html (1451 words)

	Joint Tactical Radio System - Wikipedia, the free encyclopedia
		The Joint Tactical Radio System (JTRS, often pronounced "jitters") is planned as the next-generation radio for use by the U.S. military in field operations for the second decade of the 21st century.
		JTRS is a software-defined radio for voice and data that will be backward-compatible with a very large number of other military and civilian radio systems.
		The JTRS family of radios will be interoperable with legacy communication systems and capable of growth to accommodate new requirements and technologies.
	en.wikipedia.org /wiki/Joint_Tactical_Radio_System (1201 words)

	Frequently Asked Questions About Command, Control, Communications and Intelligence
		Joint Tactical Information Distribution System (JTIDS) is a ultra high frequency terminal that uses DoD’s primary tactical data link to provide secure, jam-resistant, high-capacity interoperable voice and data communications for tactical platforms and weapon systems.
		Assured access to the electromagnetic spectrum is essential for U.S. strategic and tactical systems to fulfill their communications, intelligence, surveillance, reconnaissance, and weapons guidance missions.
		The Joint Staff has enhanced the process for identification of intelligence support requirements for new weapon systems, and for input to new intelligence systems by weapon system developers and users.
	www.iwar.org.uk /rma/resources/c4i/faq.html (1464 words)

	New plan centralizes control of tactical radio system within three domains
		The radios will be able to access maps and other visual data, communicate via voice and video with other units, and obtain information directly from battlefield sensors.
		Joint Airborne Networking-Tactical Edge, which is a new waveform that will build upon the development of the Defense Advanced Research Projects Agency’s Tactical Targeting Networking Technology waveform.
		JTRS radios can be upgraded with new software via a wireless information network and are expected to provide data rates hundreds of times faster than existing communications systems.
	www.gcn.com /print/25_9/40488-1.html (1211 words)

	Defense Tech: JITTERS FOR RADIO PROJECT
		During the early days of the Iraq invasion, some Marines were forced to use as many as seven different radios to communicate with colleagues and superiors.
		Unlike previous generations of military radios, JTRS is entirely software-based, making the system more susceptible to hacking and prompting NSA to tighten the encryption requirements.
		Studies showed that the limit of the system’s random access memory was likely to be exceeded and would lead to “possible erratic performance that would be difficult to isolate,” said Tim Rider, a spokesman for the Army's the Communications-Electronics Life Cycle Management Command.
	www.defensetech.org /archives/001408.html (523 words)

	Tactical Digital Information Links (TADIL)
		Tactical data links involve transmissions of bit-oriented digital information which are exchanged via data links known as Tactical Digital Information Links (TADIL).
		The E-8C Joint Surveillance Target Attack Radar System (Joint STARS) data links such as TADIL-J as well as the Surveillance Control Data Link (SCDL) to pass information to the Ground Station Modules (GSMs), which are the Army component for the Joint STARS.
		JTIDS is an advanced radio system that provides information distribution, position location, and identification capabilities in an integrated form.
	www.fas.org /irp/program/disseminate/tadil.htm (1974 words)

	Will Software Radio Become Real - And When? \| COTS Journal
		Initially, the focus of software radio was almost totally on its military applications, as the United States struggled with the incompatibilities between the radio systems of its various armed forces as well as those of its allies.
		A family of JTRS radios costeffectively meeting users' needs, incorporating features to enable network-centric capability, understanding that networking capability is the foundation for defining radio requirements.
		Radio system design must be responsive to each individual platform and its respective constraints.
	www.cotsjournalonline.com /home/printthis.php?id=100055 (1332 words)

	Rockwell Collins and Thales to deliver high data rate networking radios (Site not responding. Last check: 2007-10-14)
		Both radios are capable of supporting the FlexNet-Waveform for high data rate ad-hoc networked communications among a set of other waveforms (such as Combat Net Radio waveforms and especially the PR4G and PR4G F@stnet) and multimedia services.
		Rockwell Collins is a leading provider of software defined radios and waveforms for the United States military Joint Tactical Radio System (JTRS) and is developing the Tactical Data Radio System (TDRS) for the Swedish Armed Forces.
		Thales is a major provider of radios and systems for tactical military ground communications, with systems deployed in more than 40 countries around the world.
	www.collins.rockwell.com /news/page7958.html (564 words)

	Tactical communications system (Site not responding. Last check: 2007-10-14)
		Defense acquisitions : challenges associated with implementing the Joint Tactical Radio System : report to the Chairman, Subcommittee on Defense, Comm...
		Defense acquisitions challenges associated with implementing the Joint Tactical Radio System : report to the Chairman, Subcommittee on Defense, Commit...
		It might be hard to visualize a white French band doing justice to dancehall music, but due to hard work and a steady output of material, the Marseilles quintet Massilia Sound System can hold their head high.
	www.freeglossary.com /Tactical_communications_system (189 words)

	Software Defined Radio Isn’t Just About Software \| COTS Journal
		Much of software defined radio focuses on the development of software and tools that can be used to build better SDR products, but developments on the hardware side are more than keeping pace.
		The multiple programs of the U.S. Military’s Joint Tactical Radio System for software radio are progressing through their respective development and testing phases.
		This architecture supports dynamic sharing of radio resources through partial reconfiguration—the ability to dynamically create or tear down an application (one waveform) in one area of the FPGA while simultaneously running another application (another waveform) in another.
	www.cotsjournalonline.com /home/article.php?id=100246 (724 words)

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