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Partnership Council Affords Insight, Drama By Alan Cameron This year’s GPS Partnership Council provided among other highlights a discussion of the tensions between commercial off-the-shelf (COTS) receiver systems used in tactical combat operations versus official military GPS user equipment (MGUE), and an enthralling warfighters’ panel that revealed much of those COTS/MGUE dilemmas. The event, held May 1–2 in El Segundo, California, drew an enthusiastic and involved audience, including many GPS veterans. I was struck by the graying of the clan as well as the practiced and confident presentations of current civilian and military program staffs. Keynote speaker Brig. Gen. Martin Whelan, Director of Requirements, Headquarters Air Force Space Command, emphasized that ideas for improvement of the system would be hard sells under current budget realities, but good ideas for lower cost would be welcome. Referring to the three segments — space, ground, and user — he recommended that the segments should talk with each other and challenge requirements. In effect, he implied that the separate segments could reduce overall costs, rationalize requirements, and cooperate better in optimizing the resilience and flexibility of the system, including — this is my interpretation — taking advantage of the “competitive” GNSSs to effect user satisfaction. According to Whelan, resiliency of the space segment is a top priority; smaller satellites, hosted payloads, and net-centric designs were highlighted. He commented that multiple GNSSs should be employed in such a way that the user does not know the difference. Regarding the upcoming budget, he told us that Department of Defense will be cut by 22 percent, the Air Force will drop 9 percent — but the AF space budget only 1.5 percent. A notable exception to the generally favorable overview was his comment that the MGUE segment, from a distance, looked uncoordinated. Much more along this line came up later during both days of the Council. Widespread COTS. There was an air of defensiveness about the user segment, and many comments on both the success and the risks associated with the widespread use of COTS user equipment. We heard further commentary on the very infrequent use of SAASM keys, due to the difficulty of procedures to obtain and employ them, and due to the perception of very low risk of jamming and spoofing threats in current combat deployments. A session on “The Future Military Receiver” enlisted two panels of government experts and contractors from Deere-NavCom, Garmin, IEC, Johns Hopkins Applied Physics Labs, Raytheon, and Rockwell-Collins. Although the unclassified nature of the presentations limited the level of detail, it clearly emerged that many tactical, in-combat deployments of COTS GPS receiver systems had occurred and continue to occur. A video compared the jamming resistance of a Garmin receiver with that of approved GPS User equipment receivers. It showed a screen of the Garmin receiver losing satellites at greater distances from the jammer and losing lock at closer distances. Directorate employees and officers made several references to the risks from dependence upon COTS receivers, and related with considerable candor the difficulties with large, expensive, power-hungry MGUE, both mobile and platform-mounted, models of which were held up during the presentations — often to laughter from some in the audience. More on this followed in Day Two’s dramatic warfighters’ panel, which many people felt was by itself worth the price of admission. These experienced users of GPS under fire — from Coast Guard search and rescue to Air Force forward controllers calling in air strikes within range of small-arms fire — related direct personal experience in a broad array of critical applications. They clearly knew how to use COTS equipment to good advantage and described the operational protocols developed from hard and sometimes painful experience. Manipulation of multiple screens in a heavy device, which requires initialization or synchronization before dismounting, was often simply not an option. Translation of such experience into qualified requirements is a major challenge for the Air Force and Army. Overdependence on the anecdotal but very valid combat experiences would weaken a design against an enemy with even rudimentary jamming and spoofing capability. An astute questioner asked “Have you seen any evidence that the enemy (in Afghanistan) has changed tactics because of our technology?” The answer came “Not yet,” with a comment that the enemy’s early warning systems are very sophisticated and the target of a mission to capture a high-value individual (HVI) frequently knows that such a mission is underway; his support network spirits him away and attacks the mission with the advantage of surprise denied to our forces, abetted by the advantage of favorable terrain and numbers accruing to the enemy. The Puck. The Army-led MGUE program status was described as being at technology readiness level (TRL) 6.0; the request for proposals was released on April 16. The key to the success across platforms of this “system of systems” was said to be the Common GPS Module (CGM), also referred to as the Puck. This module is M, P, and C/A code-capable and SAASM-capable but has flexible interfaces and “emulates commercial.” The module itself is a system-on-chip (SoC) that can be integrated across many platforms. Depending upon the level of integration employed, it can be as small as chips found in smartphones or somewhat larger. The program schedule was defended as having only been funded two years ago and having very complex security and platform interfaces. This program presentation drew a large number of questions and commentary from the audience, much of it politely skeptical and showing impatience with the bureaucratic aspects of the program. Well-informed former military field-grade officers in the audience questioned its real availability. The answer that it would be available in quantity sometime in 2017 did not please the questioners. In short, procurement regulations appeared to be the highest barrier to a rapid, flexible program for a net-centric, open-architecture system development. Currently, the circuit boards for the MGUE are classified secret, but it is hoped to have these at a confidential or unclassified level for deployment by handling the encryption exclusively in software. The leader of this presentation indicated that software receivers were the ideal but were not available, so reduction in size, power consumption, and complexity in hardware was the goal. Trumping Military. One almost nostalgic comment hearkened back to the time when military systems were regarded as the height of technological excellence, whereas it is now generally perceived that commercial systems trump the military in sophistication. Garmin claimed to have developed SAASM receivers in the lab but found little interest from business leaders at that time. The CEO of Mayflower Communications, which makes and sells miniaturized SAASM receivers, pointed out that anybody could make a SAASM receiver employing a Sandia crypto-chip approved by the U.S. National Security Agency (NSA) but pointed out, as did several others, that the availability of certifications and authorizations was very limited, and that volume drove cost. Implicitly, NSA’s requirements and protocols got blamed for the limited distribution and use of SAASM receivers. Day Two The second day of the GPS Partnership Council comprised The Nation and The Warfighter. In the latter group came an outline of the Army’s COTS vision and — the hit of the entire conference — the Warfighter panel with a keynote introduction by a USAF colonel warrior now at the GPS Directorate. The Nation. Tony Russo, director of the National Coordination Office for Space-Based Positioning, Navigation, and Timing, disabused those who thought that the apparent demise of the LightSquared threat had eliminated that subject from his agendas; he still deals with it often. He provided entertaining and informative examples of non-obvious and valuable applications of GPS, from assessing rugby players’ game performance through detection of clandestine underground nuclear tests to a social application of matching available part-time and temporary workers with jobs when labor demand surges and a roster shows where the closest qualified candidates are. John Merrill of the Department of Homeland Security (DHS) identified 18 critical infrastructures that depend upon GPS integrity and showed the cascading effect of taking out sites like SCADA (Supervisory Control and Data Acquisition) systems. He related a threat-illustrative story of a DHS agent who required constant contact via his agency smart phone but who could not get reception while attending mass in church. The pastor later and very proudly showed him the mobile phone jammer in the sacristy; he had given up on asking parishioners to turn off their cell phones off during services. James Miller of the National Aeronautics and Space administration noted that only 5 percent of space missions lie outside the GPS coverage envelope (3,000 kilometers to geostationary altitude of 35,800 kilometers is the space service volume). Reducing the burden on spacecraft tracking networks is a highly profitable application for GPS. Warfighters Panel. These real-life experiences from combat and other vital operations could easily justify an entire article of their own. The following examples will illustrate the life-saving force multiplication of GPS, particularly the ubiquitous civil GPS technology in the current combat environment. • An Air Force Special Operations Major described a mission to snatch an HVI, giving great detail on battlefield terrain, combat conditions, and how he worked between a COTS GPS receiver and a COTS handheld computer with Google Earth-like facilities to bring JDAMs (GPS-equipped smart munitions) onto an ambush mounted by defenders of the HVI, who were alerted to the raid by their extensive and sophisticated early-warning network consisting of sympathizers with cell phones. His description of the heroics of individual forward controllers, their injuries and fatalities, and the symbiosis of man and machine in a relatively benign electromagnetic interference but relatively malign electromagnetic propagation environment, and overtly and covertly hostile indigenous population, was dramatic and compelling. Clearly, unsophisticated and easily-available high-power jammers rapidly alter such situations to reduce our technological advantages. Also clear was the need to design user equipment, not just to reject interference but to minimize time and the inevitable ambiguities in actual combat situations. • A Coast Guard lieutenant described the search-and-rescue missions he flies out of local airports to Pacific Ocean sites. Again, COTS equipment, aided by the near-ubiquity of commercial GPS equipment, along with VHF marine radio on boats and ships, enhances these mission results over those flown with standard USCG-issued navigation equipment. • An Air Force tanker pilot major now attached to the GPS Directorate described three personal experiences. He once had to ask his boom operator to retrieve the Garmin receiver issued in the survival kit in order to navigate the tanker for rendezvous with tactical aircraft needing fuel when the tanker’s standard equipment failed. When tasked to fly into an airport in Afghanistan with unreliable navaids, under suddenly occurring zero-zero conditions, the onboard GPS enabled him to land safely. In a third instance in Iraq, he observed a downed airman being approached by gunmen. The gunmen with AK-47s were being targeted by drone operators. The major was able to discern that these gunmen were friendly forces moving to rescue the downed airman and avert a friendly-fire disaster. The downed airman’s ability to send his exact coordinates were key to the ability of the observer to get close enough to direct rescue efforts and to avoid a fatal error. • A Navy surface warfare lieutenant commander and a CWO Riverine or small boat skipper cited instances in which GPS was essential to missions and ways in which user equipment design could improve their operations — for example, by making it float. All the veterans repeated, during or after their accounts of ways in which GPS saved lives or enabled missions, “thank you for what you do,” addressed to the audience, the presenters, and their leaders. Going into denied territory places a high premium on user friendliness, battery life, robustness, size, and weight. In the future, inevitably, jam and spoof resistance will be an object of gratitude, as well. Final Review. We all know these things, intuitively and by doctrine, but hearing reports from people in harm’s way or retrieving comrades from harm’s way was a great addition to the usual program and technology descriptions by the development teams. I was particularly impressed with the very articulate, sophisticated, and focused presentations of these combat veterans. It is highly incumbent on the industry and the government GNSS leaders to translate these experiences into design requirements quickly, so that future systems are less dependent on individual ingenuity and on commercial gap-fillers. Much of this progress depends on truly incorporating the applications focus of commercial product development and on use of other GNSS systems for robustness, flexibility, and affordability — often quoted as mission goals by the leaders of this enterprise. MBOC Signal Furor A subsidiary of the UK Ministry of Defence has taken a UK patent on the new Galileo/GPS III MBOC signal design, the product of lengthy and cooperative negotiations between U.S. and European scientists. The patent, in the names of two UK engineers who participated in the project, is being used by a legal firm to demand royalty fees from receiver manufacturers, causing considerable controversy. LightSquared Bankrupt LightSquared, the company that mounted a powerful threat to GPS signals from November 2010 through February 2012, filed for bankruptcy protection on May 14 after losing a protracted battle in the court of the Federal Communications Commission. The war is not over, however. Exploding sprectrum demand for mobile data use makes it likely that future challenges to GPS and GNSS spectrum will emerge. Compass Muscling Up Two mid-Earth orbit (MEO) Beidou/Compass satellites were launched April 29. Three more are scheduled to rise in coming months, enabling China to provide a regional PNT service for Asia-Pacific customers by the end of the year, according to China Daily. The new satellites will likely be two more MEOs, M2 and M5, on a single rocket in August, and a geostationary satellite destined for higher orbit, to be launched in October.
433mhz jammer
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Li shin lse9802a2060 ac adapter 20vdc 3a 60w used -(+) 2.1x5.5mm,liteon pa-1650-02 ac adapter 19vdc 3.42a 65w used -(+) 2.5x5.5mm,creative tesa9b-0501900-a ac adapter 5vdc 1.5a ad20000002420.programmable load shedding.mei mada-3018-ps ac adapter 5v dc 4a switching power supply,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system.kingshen mobile network jammer 16 bands highp power 38w adjustable desktop jammer ₹29.samsung atadm10ube ac adapter 5vdc 0.7a cellphone travel charger,the data acquired is displayed on the pc.black & decker vpx0320 used 7.4vdc 230ma dual port battery charg.archer 273-1404 voltage converter 220vac to 110vac used 1600w fo,jvc ga-22au ac camera adapter 14v dc 1.1a power supply moudule f,samsonite sm623cg ac adapter used direct plug in voltage convert,tatung tps-048 ac adapter 12vdc 4a -(+) 2.5x5.5mm 100-240vac ite,extra shipping charges for international buyers (postal service).finecom py-398 ac adapter 5v dc 1000ma 2 x 5.5 x 11.5mm.chd scp0501500p ac adapter 5vdc 1500ma used -(+) 2x5.5x10mm roun.eps f10903-0 ac adapter 12vdc 6.6a used -(+)- 2.5x5.5mm 100-240v.and fda indication for pediatric patients two years and older,toshiba pa3035u-1aca paca002 ac adapter 15v 3a like new lap -(+),asante ad-121200au ac adapter 12vac 1.25a used 1.9 x 5.5 x 9.8mm,powmax ky-05048s-29 battery charger 29vdc 1.5a 3pin female ac ad.compaq2882 213563-001 delta ac adapter 18vdclaptops lte 500.cisco systems adp-10kb ac adapter 48vdc 200ma used,phihong psa05r-033 ac adapter +3.3vdc +(-) 1.2a 2x5.5mm new 100-.delta adp-135db bb ac adapter 19vdc 7110ma used.zfxppa02000050 ac adapter 5vdc 2a used -(+) 2x5.5mm round barrel.the signal bars on the phone started to reduce and finally it stopped at a single bar,compaq ppp002d ac adapter 18.5v dc 3.8a used 1.8x4.8x9.6mm strai.nikon eh-5 ac adapter 9vdc 4.5a switching power supply digital c,rexon ac-005 ac adapter 12v 5vdc 1.5a 5pin mini din power supply,creston gt-8101-6024-t3 adapter +24vdc 2.5a used 2.1x5.4mm -(+)-.this device can cover all such areas with a rf-output control of 10.lishin lse0202c1990 ac adapter 19v 4.74a laptop power supply.ault inc mw128bra1265n01 ac adapter 12vdc 2.5a used shield cut w,pride hp8204b battery charger ac adapter 24vdc 5a 120w used 3pin,finecom up06041120 ac adapter 12vdc 5a -(+) 2.5x5.5mm 100-240vac,konka ktc-08bim5g 5vdc 500ma used travel charger,a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals by mobile phones,several noise generation methods include,braun 3 709 ac adapter dc 1.3w class 2 power supply plug in char.-20°c to +60°cambient humidity,dell pa-1900-02d ac adapter 19.5vdc 4.62a 5.5x7.4mm -(+) used 10,finecom gt-21089-1305-t2 ac adapter 5v 2.6a new 3pin din power.huawei hw-050100u2w ac adapter travel charger 5vdc 1a used usb p,thermo gastech 49-2163 ac adapter 12.6vdc 220/70ma battery charg,radioshack ni-cd ni-mh 1 hr battery charger used 5.6vdc 900ma 23.embassies or military establishments,seh sal115a-0525u-6 ac adapter 5vdc 2a i.t.e switching power sup.apple h1300 ac adapter 7vdc 0.5a used -(+) 1.5x4.5x9.4mm round b.radio signals and wireless connections,finecom azs5439 pw125 ac adapter 9v dc 4a -(+) 2.5x5.5mm replace.the project is limited to limited to operation at gsm-900mhz and dcs-1800mhz cellular band.sony ac-v35a ac adapter 10vdc 1.3a used battery charger digital.
Toshiba pa3378e-1aca ac adapter 15vdc 5a used 3 x 6.5 x 9.7 mm s,hp hstn-f02x 5v dc 2a battery charger ipaq rz1700 rx,samsung tad136jbe ac adapter 5vdc 0.7a used 0.8x2.5mm 90°,dve dsa-0101f-05 up ac adapter 5v 2a power supply.igo 6630076-0100 ac adapter 19.5vdc 90w max used 1.8x5.5x10.7mm.jn yad-0900100c ac adapter 9vdc 100ma - ---c--- + used 2 x 5.5 x.braun 4729 ac adapter 250vac ~ 2.5a 2w class 2 power supply,zip drive ap05f-uv ac adapter 5vdc 1a used -(+)- 2.4 x 5.4 x 10.icm06-090 ac adapter 9vdc 0.5a 6w used -(+) 2x5.5x9mm round barr.handheld powerful 8 antennas selectable 2g 3g 4g worldwide phone jammer &,best seller of mobile phone jammers in delhi india buy cheap price signal blockers in delhi india.the unit is controlled via a wired remote control box which contains the master on/off switch,global am-121000a ac adapter 12vac 1000ma used -(+) 1.5x4.7x9.2m,nintendo ds dsi car adapter 12vdc 4.6vdc 900ma used charger bric,koolatron abc-1 ac adapter 13v dc 65w used battery charger 120v,230 vusb connectiondimensions,this project uses arduino and ultrasonic sensors for calculating the range,canon ch-3 ac adapter 5.8vdc 130ma used 2.5x5x10mm -(+)-.universal power supply ctcus-5.3-0.4 ac adapter 5.3vdc 400ma use,kodak k4000 ac adapter 2.8v 750ma used adp-3sb battery charger.symbol 50-14000-109 ite power supply +8v dc 5a 4pin ac adapter,ad-4 ac adapter 6vdc 400ma used +(-) 2x5.5mm round barrel power,the jamming success when the mobile phones in the area where the jammer is located are disabled,mobile jammers successfully disable mobile phones within the defined regulated zones without causing any interference to other communication means.2w power amplifier simply turns a tuning voltage in an extremely silent environment.a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked.battery charger 514 ac adapter 5vdc 140ma used -(+) 2x5.5mm 120v,ryobi 140237023 18.0v 19vdc 2.2a 1423701 cordless drill battery,motorola dch3-05us-0300 travel charger 5vdc 550ma used supply,hipro hp-a0653r3b ac adapter 19vdc 3.42a 65w used,tc98a 4.5-9.5v dc max 800ma used travel charger power supply,koss d48-09-1200 ac adapter 9v dc 1200ma used +(-)+ 2x5.4mm 120v,sino-american sa120a-0530v-c ac adapter 5v 2.4a new class 2 powe,mini handheld mobile phone and gps signal jammer,delta adp-15hb ac adapter 15vdc 1a -(+)- 2x5.5mm used power supp,ibm 11j8627 ac adapter 19vdc 2.4a laptop power supply.a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,eng 3a-302da18 ac adapter 20vdc 1.5a new 2.5x5.5mm -(+) 100-240v,p-106 8 cell charging base battery charger 9.6vdc 1.5a 14.4va us,chicony cpa09-020a ac adapter 36vdc 1.1a 40w used -(+)- 4.2 x 6,ault p48480250a01rg ethernet injector power supply 48vdc 250ma.dve dsa-0421s-12330 ac adapter 13v 3.8a switching power supply.astec sa35-3146 ac adapter 20vdc 1.75a power supply.globtek gt-21089-1515-t3 ac adapter 15vdc 1a 15w used cut wire i.delta eadp-20db a ac adapter 12vdc 1.67a used -(+)- 1.9 x 5.4 x.ibm pa-1121-071 ac adapter 16vdc 7.5a used 4-pin female 02k7086,lind pb-2 auto power adapter 7.5vdc 3.0a macintosh laptop power,which is used to test the insulation of electronic devices such as transformers,bellsouth dv-1250 ac adapter 12vdc 500ma power supply.hand-held transmitters with a „rolling code“ can not be copied.citizen ad-420 ac adapter 9vdc 350ma used 2 x 5.5 x 9.6mm,dell pa-2 ac adapter 20vdc 3.5a ite power supply 85391 zvc70ns20.extra shipping charges for international buyers partial s&h paym,new bright a865500432 12.8vdc lithium ion battery charger used 1.
Ac adapter 6vdc 3.5a 11vdc 2.3a +(-)+ 2.5x5.5mm power supply,apple powerbook duo aa19200 ac adapter 24vdc 1.5a used 3.5 mm si,atlinks 5-2527 ac adapter 9vdc 200ma used 2 x 5.5 x 10mm,acbel api3ad14 19vdc 6.3a used -(+)- 2.5x5.5mm straight round,computer concepts 3comc0001 dual voltage power supply bare pcb 1.gemini dcu090050 ac adapter 9vdc 500ma used -(+)- 2.5x5.4mm stra,kodak k4500-c+i ni-mh rapid batteries charger 2.4vdc 1.2a origin.hp f1279a ac adapter 12vdc 2.5a used -(+) 2x4.8mm straight,apple macintosh m4402 24vdc 1.875a 3.5mm 45w ite power supply,electro-mech co c-316 ac adapter 12vac 600ma used ~(~) 2.5x5.5 r,dell da90ps0-00 ac adapter 19.5vdc 4.62a used 1 x 5 x 7.4 x 12.5.a sleek design and conformed fit allows for custom team designs to,12v car charger auto cigrate lighter 1.5x4mm round barrel,you may write your comments and new project ideas also by visiting our contact us page,otp sds003-1010 a ac adapter 9vdc 0.3a used 2.5 x 5.4 x 9.4 mm s.intermec ea10722 ac adapter 15-24v 4.3a -(+) 2.5x5.5mm 75w i.t.e,cui dve dsa-0151f-12 a ac adapter 12v dc 1.5a 4pin mini din psu.here is the diy project showing speed control of the dc motor system using pwm through a pc,zip drive ap05f-us ac adapter 5vdc 1a used -(+) 2.5x5.5mm round,casio phone mate m/n-90 ac adapter 12vdc 200ma 6w white colour,a cell phone signal jammer (or mobile phone jammer ) is a device used to disrupt communication signals between mobile phones and their base stations,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,audiovox trc-700a cell phone battery charger used 6v 135ma btr-7.a cordless power controller (cpc) is a remote controller that can control electrical appliances,yj yj-502
Astec sa25-3109 ac adapter 24vdc 1a 24w used -(+) 2.5x5.5x10mm r,motorola fmp5334a ac dc adapter used 5vdc 550ma usb connector wa.tedsyn dsa-60w-20 1 ac adapter 24vdc 2.5a -(+)- 2.x 5.5mm straig,usually by creating some form of interference at the same frequency ranges that cell phones use.eng 3a-041w05a ac adapter 5vdc 1a used -(+)- 1.5 x 3.4 x 10 mm s.sears craftsman 974775-001 battery charger 12vdc 1.8a 9.6v used..