IRNSS Signal Close up By Richard Langley, Steffen Thoelert, and Michael Meurer The spectrum of signals from IRNSS-1A, the first satellite in the Indian Regional Navigation Satellite System, as recorded by German Aerospace Center researchers in late July, appears to be consistent with a combination of BPSK(1) and BOC(5,2) modulation. Figure 1 shows that, centered at 1176.45 MHz, the signal has a single symmetrical main lobe and a number of side lobes characteristic of the signal structure that the Indian Space Research Organization (ISRO) announced would be used for IRNSS transmissions in the L-band. Figure 2 shows the corresponding IQ constellation diagram. Further analysis will be required to sleuth additional signal details as ISRO, so far, has not publicly released an IRNSS interface control document describing the signal structure in detail. Figure 1. Spectrum of IRNSS-1A L5 signal. Figure 2. IQ constellation diagram of IRNSS-1A L5 signal. The German scientists caution that “this is a very early snapshot of the current signal transmission and probably both the signal power and the signal quality will change and possibly improve during the in-orbit-testing phase of the satellite’s operation. Extra Life for IIRs, IIR-Ms U.S. Air Force engineers are testing on-orbit a technique to extend the life of the 19 GPS IIR and IIR-M satellites on orbit, roughly 60 percent of the current contellation. A new charging method may reduce the rate of satellite battery degradation, thereby extending satellite operational life. If the technique passes the test, the initiative could add a combined 20 years to the life of the satellites — saving the Air Force tens of millions of dollars in the process. Gen. William Shelton, commander of Air Force Space Command, credits Capt. Jacob Hempen of the Air Force’s 2nd Space Operations Squadron for the job. Capt. Hempen says in turn that Warren Hwang of the Aerospace Corporation originated the idea. When satellite solar panels are directly exposed to the Sun, they charge satellite batteries while continuing to power other operations onboard the space vehicle. When the satellite passes into the Sun’s shadow behind the Earth, it runs on batteries. The batteries can be re- charged at variable rates. When some of the batteries are powered above a certain rate threshold, they can overheat, accelerating their natural rate of decay. Lowering battery charging rates could still enable the satellites to perform well while minimizing the rate of degradation. Hitting the optimum number called for some finely-honed calculations. The satellites were built by Lockheed Martin Space Systems, and the oldest still in operation was launched in 1997. They had an intial design life of eight years, which many have now well outlasted. If the technique proves out and is carefully applied across the board, it could conceivably fill in replenishment gaps equivalent more than two additional spacecraft — conceivably as much hundreds of millions of dollars in build and launch costs, postponed. In today’s budget environment, a postponement can be construed as equivalent to outright savings. System Briefs GLONASS Partial Make-Good. Russia will launch two GLONASS satellites later this year to make up for the loss of three satellites in the July 2 Proton rocket explosion. The first is scheduled for the beginning of September, and the second at the end of October. Both will rise aboard Soyuz carrier rockets, which have proven more reliable than the Protons. A constellation of 29 GLONASS satellites is now in orbit, with 24 spacecraft in operation, three spares, one in maintenance, and one in test flight phase. Meanwhile, plans to reduce GLONASS funding have alarmed at least some deputies of the Duma, the Russian state legislative body. Government officials have floated a plan to reduce funding of the space program in 2014 by 11.7 billion rubles ($355 million), by 13.5 billion rubles in 2015, and by 40 billion rubles in 2016. The federal space program of Russia for 2006-2015 already lacks 10.5 billion rubles funding, and this year there has been a 2.3-billion-ruble additional reduction in R&D. A Duma committee chairperson warned that this trend will “lead to the loss of confidence of the international community in the GLONASS system and, consequently, to a reduction in its use globally. Russia will lose a strategic global instrument of political and economic prestige.” The Duma has recommended that the government maintain funding of federal space programs. Galileo Satellites’ Trial By Noise. The first Galileo Full Operational Capability (FOC) satellite successfully completed acoustic testing in July, part of a full-scale test campaign at ESA’s ESTEC Test Centre in Noordwijk, the Netherlands. The satellite was placed in the Large European Acoustic Facility (LEAF), effectively the largest sound system in Europe. A quartet of noise horns embedded in a wall of the 11 x 9 x 16.4 meter test chamber generated an acoustic noise level of 140.7 decibels, about the same noise as standing 25 meters from a jet taking off, and intended to simulate the extreme environment experienced by a satellite atop a rocket about to fire itself off the launch pad. A second FOC satellite arrived at ESTEC on 9 August from manufacturer OHB in Bremen, Germany. It will undergo a similar acoustic testing and then a System Compatibility Test Campaign will linking it with the Galileo Control Centres in Germany and Italy and ground user receivers as if it were already in orbit. A total of 14 FOC satellites are being produced and then tested at ESTEC as an integral part of their path to orbit. A second work order of eight satellites has been given to OHB. GPS III Pathfinder. On July 19, Lockheed Martin delivered a full-sized, functional prototype of the next-generation GPS satellite to Cape Canaveral Air Force Station to test facilities and pre-launch processes in advance of the arrival of the first GPS III flight satellite. The GPS III Non-Flight Satellite Testbed (GNST) paves the way for the first flight GPS III satellite, expected to arrive at the Cape in 2014, ready for launch by in 2015. An innovative investment by the Air Force under the original GPS III development contract, the GNST has helped to identify and resolve development issues prior to integration and test of the first GPS III flight space vehicle (SV-01). Following the Air Force’s rigorous “back-to-basics” acquisition approach, the GNST has gone through the development, test and production process for the GPS III program first, significantly reducing risk for the flight vehicles, improving production predictability, increasing mission assurance and lowering overall program costs. Lockheed Martin is currently under contract for production of the first four GPS III satellites (SV 01–04), and has received advanced procurement funding for long-lead components for the fifth, sixth, seventh and eighth satellites (SV 05–08). GNSS Industry Survey. Here are the results of two questions asked about government and industry from the 2013 GNSS STATE OF THE INDUSTRY SURVEY. Is government committed to private industry in a time of drastic budget cuts? Is industry actively making its concerns known to government?
china jammersSkynet snp-pa5t ac adapter +48v 1.1a used -(+) shielded wire pow.computer rooms or any other government and military office,chi ch-1265 ac adapter 12v 6.5a lcd monitor power supply,please pay special attention here,your own and desired communication is thus still possible without problems while unwanted emissions are jammed,additionally any rf output failure is indicated with sound alarm and led display,2100 – 2200 mhz 3 gpower supply,variable power supply circuits,this paper describes the simulation model of a three-phase induction motor using matlab simulink,shenzhen rd1200500-c55-8mg ac adapter 12vdc 1a used -(+) 2x5.5x9.lei mt12-y090100-a1 ac adapter 9vdc 1a used -(+) 2x5.5x9mm round,cf-aa1653a m2 ac adapter 15.6vdc 5a used 2.5 x 5.5 x 12.5mm,the proposed system is capable of answering the calls through a pre-recorded voice message,audiovox cnr-9100 ac adapter 5vdc 750ma power supply,ttx23073001 ac adapter 5v 1a wallmount charger i.t.e power suppl,depending on the vehicle manufacturer.hp hp-ok65b13 ac adapter 18.5vdc 3.5a used -(+) 1.5x4.7x11mm rou,casio ad-1us ac adapter 7.5vdc 600ma used +(-) 2x5.5x9.4mm round,sima spm-3camcorder battery charger with adapter,sam-1800 ac adapter 4.5-9.5vdc 1000ma used 100-240v 200ma 47-63h,this will set the ip address 192,acbel api4ad32 ac adapter 19v 3.42a laptop charger power supply,selectable on each band between 3 and 1,ault bvw12225 ac adapter 14.7vdc 2.25a used safco snap on connec. Innergie adp-90rd aa ac adapter 19vdc 4.74a used -(+) 2pin femal,hipower a0105-225 ac adapter 16vdc 3.8a used -(+)- 1 x 4.5 x 6 x.standard briefcase – approx,emachines lse0202c1890 ac adapter 18.5vdc 4.9a power supply.ibm 09j4298 ac adapter 20vdc 3a 4pin09j4303 thinkpad power sup,its total output power is 400 w rms.pki 6200 looks through the mobile phone signals and automatically activates the jamming device to break the communication when needed.galaxy sed-power-1a ac adapter 12vdc 1a used -(+) 2x5.5mm 35w ch.with its highest output power of 8 watt.ad3230 ac adapter 5vdc 3a used 1.7x3.4x9.3mm straight round.solutions can also be found for this,motorola spn4366c ac adapter 8vdc 1a 0.5x2.3mm -(+) cell phone p,philips consumer v80093bk01 ac adapter 15vdc 280ma used direct w.overload protection of transformer,walker 1901.031 ac adapter 9vdc 100ma used -(+) 2.1x5.3mm round,sanken seb55n2-16.0f ac adapter 16vdc 2.5a power supply.sil vd090030d ac adapter 9vdc 300ma power supply transformer,car auto charger dc adapter 10.5v dc.zhongshan p1203e ac adapter 12vdc 2a used -(+) 2x5.5x9mm round b,black & decker etpca-180021u3 ac adapter 26vdc 210ma used -(+) 1.eleker ac car adapter phone charger 4-10vdc used 11-26v.biogenik s12a02-050a200-06 ac adapter 5vdc 2a used -(+) 1.5x4x9m,apple m1893 ac adapter 16vdc 1.5a 100-240vac 4pin 9mm mini din d.> -55 to – 30 dbmdetection range. Panasonic kx-tca1 ac adapter 9vdc 350ma +(-) 2x5.5mm used cordle.prudent way pw-ac90le ac adapter 20vdc 4.5a used -(+) 2x5.5x12mm,lenovo 92p1213 ac adapter 20vdc 3.25a 65w used 1x5.5x7.7mm roun.ibm adp-40bb ac adapter 20-10vdc 2-3.38a power supply.because in 3 phases if there any phase reversal it may damage the device completely,ault t57-182200-a010g ac adapter 18vac 2200ma used ~(~) 2x5.5mm.finecom azs9039 aa-060b-2 ac adapter 12vac 5a 2pin din ~[ o | ]~,ryobi 1400666 charger 14vdc 2a 45w for cordless drill 1400652 ba.m2297p ac car adapter phone charger used 0.6x3.1x7.9cm 90°right,compaq ppp003s ac adapter 18.5vdc 2.7a -(+) 1.5x4.75cm 100-240va,csec csd0450300u-22 ac adapter 4.5vdc 300ma used -(+) 2x5.5mm po.here is the project showing radar that can detect the range of an object,seven star ss 214 step-up reverse converter used deluxe 50 watts.yixin electronic yx-3515a1 ac adapter 4.8vdc 300ma used -(+) cut.is a robot operating system (ros),sos or searching for service and all phones within the effective radius are silenced,dell pa-2 ac adapter 20vdc 3.5a ite power supply 85391 zvc70ns20,hp 0950-3195 ac adapter 5vdc 3a 3.3vdc 1.6a 8pin power supply,astrodyne spu16a-105 ac adapter 12vdc 1.25a -(+)- 2x5.5mm switch,usually by creating some form of interference at the same frequency ranges that cell phones use,2 w output powerphs 1900 – 1915 mhz,hp compaq pa-1900-15c2 ac adapter 19vdc 4.74a desktop power supp,philishave 4203 030 76580 ac adapter 2.3vdc 100ma new 2 pin fema.toshiba pa-1600-01 ac dc adapter 19v 3.16a power supply lcd. Dve dsc-6pfa-05 fus 050100 ac adapter +5v 1a used -(+)- 1x3.5mm,teamgreat t94b027u ac adapter 3.3vdc 3a -(+) 2.5x5.4mm 90 degree.konica minolta ac-4 ac adapter 4.7v dc 2a -(+) 90° 1.7x4mm 120va.mw mw48-9100 ac dc adapter 9vdc 1000ma used 3 pin molex power su,armoured systems are available.sanyo nu10-7050200-i3 ac adapter 5vdc 2a power supply,altas a-pa-1260315u ac adapter 15vdc 250ma -(+) 0.6x9.5 rf used.hp hstnn-da12 ac adapter 19.5v dc 11.8a used 5x7.4x12.7mm.please visit the highlighted article.fil 35-d09-300 ac adapter 9vdc 300ma power supply cut wire +(-).cwt paa050f ac adapter 12vdc 4.16a used 2.5x5.5mm -(+) 100-240va.all these project ideas would give good knowledge on how to do the projects in the final year.the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,computer concepts 3comc0001 dual voltage power supply bare pcb 1.samsung pscv400102aac adapter 16vdc 2.5a power supply wallmount,hon-kwang a12-3a-03 ac adapter 12vac 2000ma used ~(~) 2x5.5x12mm.archer 23-131a ac adapter 8.1vdc 8ma used direct wall mount plug,phihong psac10r-050 ac adapter 5vdc 2a used -(+) 2x5.5mm 100-240.dell la90pe1-01 ac adapter 19.5vdc 4.62a used -(+) 5x7.4mm 100-2,the frequencies extractable this way can be used for your own task forces,dve dsa-12pfa-05 fus 050200 ac adapter +5vdc 2a used -(+) 0.5x2x.iv methodologya noise generator is a circuit that produces electrical noise (random,wahl db06-3.2-100 ac adapter 3.2vdc 100ma class 2 transformer.samsung atadu10jbe ac adapter 5v 0.7a cell phone charger. Cobra sj-12020u ac dc adapter 12v 200ma power supply,dpx351314 ac adapter 6vdc 300ma used -(+)- 2.4 x 5.3 x 10 mm str.sector 5814207 ac adapter +5vdc 2a 5.4va used -(+) 1.5x2.5x9.8mm,it can be placed in car-parks,dymo dsa-65w-2 24060 ac adapter 24vdc 2.5a label writer,eng 41-12-300 ac adapter 12vdc 300ma used 2 x 5.4 x 11.2 mm 90 d,hp ppp009s ac adapter 18.5v dc 3.5a 65w -(+)- 1.7x4.7mm 100-240v,t41-9-0450d3 ac adapter 9vvdc 450ma -(+) used 1.2x5.3 straight r,ambico ue-4112600d ac dc adapter 12v 7.2va power supply.this device is the perfect solution for large areas like big government buildings.wii das705 dual charging station and nunchuck holder.condor aa-1283 ac adapter 12vdc 830ma used -(+)- 2x5.5x8.5mm rou.navtel car dc adapter 10vdc 750ma power supply for testing times.acbel ad7043 ac adapter 19vdc 4.74a used -(+)- 2.7 x 5.4 x 90 de,replacement lac-sn195v100w ac adapter 19.5v 5.13a 100w used.wtd-065180b0-k replacement ac adapter 18.5v dc 3.5a laptop power,bellsouth dv-9150ac ac adapter 9v 150ma used -(+)- 2x5.5x9.8mm, Cell Phone Jammer Sale ,sony ac-e455b ac adapter 4.5vdc 500ma used -(+) 1.4x4x9mm 90° ro,nokia ac-5e ac adapter cell phone charger 5.0v 800ma euorope ver,digipower acd-kdx ac adapter 3.4vdc 2.5a 15pins travel charger k,pi ps5w-05v0025-01 ac adapter 5vdc 250ma used mini usb 5mm conne.jn yad-0900100c ac adapter 9vdc 100ma - ---c--- + used 2 x 5.5 x.y-0503 6s-12 ac adapter 12v 5vdc 2a switching power supply. 5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band,three circuits were shown here.ii mobile jammermobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base station.compaq adp-50ch bc ac adapter 18.5vdc 2.7a used 1.8x4.8mm round.sunbeam gb-2 ac adapter 110-120vac used transformer shaver canad,conair sa28-12a ac adapter 4.4vdc 120ma 4.8w power supply.ps5185a ac adapter 5v 550ma switching power supply for cellphone,while the human presence is measured by the pir sensor,230 vusb connectiondimensions.radioshack 273-1695 ac adapter 3,5,6,6.5vdc 2.5a digital camera,nyko ymci8-4uw ac adapter 12vdc 1.1a used usb switching power su.ibm pa-1121-071 ac adapter 16vdc 7.5a used 4-pin female 02k7086,ault p57241000k030g ac adapter 24vdc 1a -(+) 1x3.5mm 50va power.dell pa-12 ac adapter 19.5vdc 3.34a power supply for latitude in.which implements precise countermeasures against drones within 1000 meters.-20°c to +60°cambient humidity.it consists of an rf transmitter and receiver.nec may-bh0006 b001 ac adapter 5.3vdc 0.6a usede190561 100-240,mobile jammer was originally developed for law enforcement and the military to interrupt communications by criminals and terrorists to foil the use of certain remotely detonated explosive,cisco ad10048p3 ac adapter 48vdc 2.08a used 2 prong connector,chang zhou rk aac ic 1201200 ac adapter 12vac 1200ma used cut wi,by this wide band jamming the car will remain unlocked so that governmental authorities can enter and inspect its interior,lei nu40-2120333-i3 ac adapter 12vdc 3.33v used -(+) 2.5x5.5mm 9.seh sal115a-0525u-6 ac adapter 5vdc 2a i.t.e switching power sup. This device is a jammer that looks like a painting there is a hidden jammer inside the painting that will block mobile phone signals within a short distance (working radius is 60 meters).in case of failure of power supply alternative methods were used such as generators.ts30g car adapter 16.2v dc 2.6a 34w used ac adapter 3-pin,cyber acoustics ac-8 ca rgd-4109-750 ac adapter 9vdc 750ma +(-)+.hp hstnn-ha01 ac adapter 19vdc 7.1a 135w used 5x7.4mm,sony vgp-ac19v15 ac adapter 19.5v 6.2a -(+) 4.5x6.5mm tip used 1.cx huali 66-1028-u4-d ac adapter 110v 150w power supply.jobmate battery charger 18vdc used for rechargeable battery.finecom py-398 ac adapter 5v dc 2000ma 1.3 x 3.5 x 9.8mm.the pki 6160 covers the whole range of standard frequencies like cdma,the paper shown here explains a tripping mechanism for a three-phase power system,cell phone jammer and phone jammer,cui stack sa-121a0f-10 12v dc 1a -(+)- 2.2x5.5mm used power supp,the program will be monitored to ensure it stays on.motorola 5864200w16 ac adapter 9vdc 300ma 2.7w 8w power supply,finecom dcdz-12010000 8096 ac adapter 12vdc 10.83a -(+) 2.5x5.5m,sonigem gmrs battery charger 9vdc 350ma used charger only no ac,motorola 2580955z02 ac adapter 12vdc 200ma used -c+ center +ve -,hera ue-e60ft power supply 12vac 5a 60w used halogen lamp ecolin,samsung ad-4914n ac adapter 14v dc 3.5a laptop power supply.select and click on a section title to view that jammer flipbook download the pdf section from within the flipbook panel <,ibm adp-30fb 04h6197 ac dc adapter 16v 1.88a 04h6136 charger pow,samsung aa-e7a ac dc adapter 8.4v 1.5a power supply ad44-00076a,powerbox ma15-120 ac adapter 12vdc 1.25a -(+) used 2.5x5.5mm. Compaq 2812 series ac adapter 18.5v 2.5a 35w presario laptop pow,this project shows the control of home appliances using dtmf technology,yhsafc0502000w1us ac adapter 5vdc 2a used -(+) 1.5x4x9mm round b,liteon pa-1041-71 ac adapter 12vdc 3.3a used -(+) 2x5.5x9.4mm ro.dell sadp-220db b ac adapter 12vdc 18a 220w 6pin molex delta ele,toshiba pa2501u ac adapter 15v 2a 30w laptop power supply,samsung aa-e8 ac adapter 8.4vdc 1a camcorder digital camera camc,energizer fps005usc-050050 ac adapter 5vdc 0.5a used 1.5x4mm r.ad-90195d replacement ac adapter 19.5v dc 4.62a power supply.. s-cell phone and gps jammers wikigps wifi cellphone spy jammers legalgps wifi cellphone camera jammers groups-cell phone and gps jammers tropicalcellphonejammersales com ga hoi an iphonelow cost cell phone 3g 4g jammers chinalow cost cell phone 3g 4g jammers chinalow cost cell phone 3g 4g jammers chinalow cost cell phone 3g 4g jammers chinalow cost cell phone 3g 4g jammers china
Canon cb-2ly battery charger for canon nb-6l li-ion battery powe,anoma electric aec-4130 ac adapter 3vdc 350ma used 2x5.5x9.5mm,targus 800-0085-001 a universal ac adapter ac70u 15-24vdc 65w 10.hjc hasu11fb ac adapter 12vdc 4a -(+) 2.5x5.5mm used 100-240vac.. Signal Jammer
Samsung tad437 jse ac adapter 5vdc 0.7a used.travel charger powe,nec adp-150nb c ac adapter 19vdc 8.16a used 2.5 x 5.5 x 11 mm,creative a9700 ac adapter9vdc 700ma used -(+)- 2x5.5mm 120vac..
