Back again in Portland, Oregon, the 2016 Institute of Navigation’s ION GNSS+ conference was a great opportunity for the GNSS community to catch up on what’s been cooking in the industry, and of course who’s been doing what in the research community. The attendees eagerly took to a wide range of technical paper presentation sessions, and from time to time came to take a look at what industry had to offer on the exhibit floor. Lots of engaging research reports, from work undertaken over the last year by academia, again drew a significant number of attendees from around the world. On the other hand, industry continued the trend to go to trade shows in application sectors and pull back somewhat from ION GNSS+ as a place to look for product sales. So the number of companies on the ION show floor remained around the same or maybe a little less than in the previous few years. Nevertheless, the quality of the companies exhibiting remained high and there were some interesting newcomers. A number of major GNSS receiver manufactures have pulled back from ION, so there were only two established U.S. companies and two new U.S. entrants at the show. On the other hand, GNSS simulation companies were at ION in force — eight all told, or twice as many as the receiver manufacturers present who have been their historic customers. But the trend in GNSS simulation now appears to be to move down stream towards the needs of integrators and systems outfits — in segments such as automotive, UAV and agriculture — with lower cost, very capable simulators. Receiver makers roll out new tech As a consequence, the NovAtel and Septentrio booths got a lot of attendee traffic, while BDStar (Unicore receivers and Harxon antennas) and ComNav also had a number of visitors to their booths. As usual, NavTech, who represent almost all the manufacturers, also had a busy exhibit. OEM7600 dual-frequency receiver. NovAtel chose to launch its OEM-7 series of GNSS receivers and a newly designed VEXXIS high-precision antenna at ION GNSS+, which is a somewhat refreshing return to the ION GNSS+ launch platform we used to see in the past. A new highly integrated ASIC at the heart of this receiver now provides, amongst other features, 555 channels, L-band support, inertial SPAN capability and an intriguing “Interference Toolbox”. The toolbox enables integrators to localize interference effects over a wide band — especially helpful for densely packed electronics, which you might expect in a UAV, for instance. Interference Toolbox Screenshot. Septentrio didn’t have a whole lot of new product announcements, but as usual the company has been working hard at improving existing capabilities on its receivers. The AsteRx4 receiver that uses a new ASIC has been available for a while, but it too boasts 544 channels — perhaps too many to actually be used in practice — robust heading, centimeter-level RTK and decimeter-level PPP (with TerraStar and Veripos corrections) with dual L-band channels, and an improved suite of advanced interference mitigation (AIM+) capabilities. This helps detection and removal of the effects of “chirp jamming” from low-power “cigarette-lighter” jammers — using signal analysis and adjustment of adaptive notch filters. Septentrio did announce a new PolaRx5TR packaged time-and-frequency transfer receiver and a contract with the Jet Propulsion Laboratory (JPL) for reference stations and timing. A report by UNAVCO also found its way into my inbox, which related comparative testing of the PolaRx5 and other manufacturers’ receivers in connection with a UNAVCO RFP – Septentrio did O.K. and was selected as a preferred vendor, which no doubt influenced the JPL award and added to an already good first half year for the company. The Septentrio PolaRX5TR. BDStar had a range of GPS, GLONASS, Beidou receivers from its subsidiary Unicorecomm, along with an impressive selection of antennas from Harxon, another of its Chinese subsidiaries. Both product lines have done very well in the Chinese market, and BDStar would like to sell more in North America. ComNav also displayed a similar range of GNSS receivers and antennas, with new versions of both since last year, and a strong desire to break through into the US market. Simulators a big presence Simulator companies at ION included the more established Spirent, Spectracom, CAST, IFEN and Rohde & Schwarz — we could even now consider RaceLogic/LabSat as a record-and-playback fixture in the market. But in the wings and making lots of waves at the show were Syntony from France and Skydel from Montreal, Canada. Spirent brought its usual large-scale GNSS simulators to ION, but also featured an interference detection and software analysis suite, a 16-bit high-fidelity record/playback unit, along with a new multi-frequency simulator aimed at downstream integrators. The GSS200D Detector finds interference effects and is able to relate them to the threats in the environment around a receiver. The object is to help debug an installation by finding internal interferers. The analysis tools can also help differentiate between regular equipment interference and potential external jammers. Spirent’s new GSS200D detector. Spirent also displayed a record/playback unit that has 16-bit playback capability, enabling a user to record and review a particular interference event, and then feed their new commercial simulator in order to replicate the interference. So a passing isolated jamming event can be analyzed in detail. Multiple reruns are possible to confirm the effect on the target system, and following equipment modifications, prove that the problem has indeed been neutralized. Spirent analysis tools. RaceLogic introduced its new wideband LabSat 3 record/playback system for GPS L1, GLONASS L1, Galileo E1, BeiDou B1, QZSS and SBAS. Recording live signals for any or all of these signals then allows later playback of a canned sample for equipment debugging on the bench. The LabSat product line has been around for some time, and this addition increases the debug capability for downstream users at an affordable price in a very portable format. When used with the RaceLogic SatGen software system, the user has access to a powerful toolset for testing new GNSS devices. LabSat 3 and SatGen test set-up. Spectrcom displayed its multi-frequency, multi-constellation simulator and also featured a GNSS vulnerability test system for interference detection and system debugging. The company’s approach requires two simulators, both synchronized by an atomic clock, allowing a PC-based Test Scenario Control to generate reproducible interference effects for debugging. CAST Navigation is already moving downstream quite quickly with its CAST-SGX handheld GNSS simulator. With a touchscreen display, this simplified L1 GPS simulator (with P-code option) is ideal for test-bench debugging. Rohde & Schwarz had its usual array of high-end test equipment, with a test set-up aimed at demonstrating testing of a Wi-Fi indoor location application on a smartphone. IFEN showed up with a completely re-engineered simulator with huge frequency/channel capacity. The Titan GNSS Simulator houses up to 8 RFSIM modules, each of which carries 32 configurable satellite signals. A fully configured Titan chassis can therefore provide 256 channels of GPS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5/E6, Beidou B1/B2/B3, IRNSS L5 and S-band, QZSS L1/L2/L5/LEX and all current L1/L5 SBAS signals. Titan also has up to four independent RF outputs. IFEN Titan GNSS Simulator. Skydel is one of the newcomers in GNSS simulation, but has made significant inroads first appearing last year at ION. Skydel now boasts a full-up, reconfigurable GPS, GLONASS, Galileo, Beidou “software” simulator which the company claims to sell at a 1/3 the price of a conventional hardware simulator. And during the year, Skydel teamed up with Talen-X in Ohio, who have embedded Skydel software-defined in a U.S.-sourced GPS/GLONASS/Galileo/Beidou simulator that can include GPS P/Y and M-code. Broadsim from Talen-X powered by Skydel. Syntony rises high by going under (the ground) The noise in simulation at ION was, however, created by Syntony from Toulouse in France. Syntony recently won a 15-simulator order from OneWeb — the outfit that plans to launch a 640 internet connectivity satellite constellation through 2020. With funding secured from Virgin Group and Qualcomm in 2015, initial satellite build is underway at Airbus Defence and Space, launch services are contracted with Arianespace to provide 21 multi-sat launches on Soyuz beginning in 2017 with optional launch service with Virgin Galactic. So Syntony is likely going to be able to build, deliver and be paid for its 15 simulators, which will be used for testing GPS capability that is integrated into each comms satellite. Syntony 128-channel GNSS Simulator “Constellator.” Syntony’s simulator is also software-defined and is reconfigurable. The software-defined heart of this system comes from a Syntony GPS/Galileo receiver, and a version of this receiver has now been sold for use in the Airbus Adeline re-usable space module. This receiver is a “multi-antenna receiver” in order to avoid signal or tracking loss while switching between antennas during the Safran launcher rotation. The catch here is that Syntony must develop this receiver to Airbus critical airborne software=qualification standards — no mean feat! Syntony is also providing a version of its Constellator simulator for testing this multi-antenna input receiver. An ECHO record/playback system is also available, which includes high-fidelity 16-bit RF outputs. Finally, Syntony was able to capture a proof-of-concept location infrastructure project for Stockholm, Sweden’s, underground metro. The metro stations are pretty deep underground, as they have been dug under the sea in and around Stockholm, and no one had been able to come up with a system that would enable emergency 911 calls with associated essential localized position information to be carried from within the stations. Syntony was able to provide a GPS-like signal infrastructure at the stations which is compatible with GPS-enabled smartphones. It worked well, and Syntony verified that there was no radiation of the signal outside any of the entrances to the test station — so no GPS interference. It actually worked so well that Syntony got the contract to equip all 50 metro stations in Stockholm, and the Syntony is now working to spread its system around the metros of all major cities, worldwide. Defining the Galileo PRS signal… Then I came across Fraunhofer towards the end of the show, and their posters about a Galileo PRS (Public Regulated Service) receiver. Now, we know that there has been significant discussion between the different security services of countries across the European Union, and its taken a lot of time to get to a definition of the PRS signal and who has access. So it wasn’t surprising that there was no hardware on the Fraunhofer booth; what’s surprising is that there was any mention of such a receiver being available and telling attendees at a conference in the U.S. that it’s available. I talked to a couple of people at their booth, and indeed there is such a receiver, but they really couldn’t tell me anything about it because telling is strictly verboten! Another strange anomaly of the Galileo program — the participants seem to want to let the U.S. know that they have the capability for a special access service, and a receiver is available to work with it, but they can’t tell us anything about it. I guess the idea may be to rattle the cage of the U.S. P-code/M-code guys, and let them know Galileo has caught up at last… But Fraunhofer has an idea of how to make things available to, well, err …. to somebody. They have a concept to have cellphone users who want PRS to connect with their cloud receiver, and they will decode and provide PRS position back over the internet. That solves the whole security thing…. OK, that should do it. Where inertial stands I also made the rounds of the inertial and inertial/GPS guys at the show, and there were quite a few. From Northrop Grumman and Systron Donner and their mil-spec high-end FOG and RLG and Quartz MEMS tube-shaped inertial units — could they be for shells or missiles? — to Silicon Sensing’s MEMS accels and gyros and their move out of automotive and towards high-precision performance, to Sensonor’s high-performance commercial MEMS/GNSS units, there were actually only a few of the inertial-aiding outfits present. Yet everything we hear is that for anything that moves, we really should use integrated inertial/GNSS, and UAVs especially want lots of that! So this part of the business looks to be quite healthy too… Now another ION GNSS+ conference has come and gone — and I was reminded that maybe I’ve actually been to 95 percent of the ION September conferences over the last 30 years. And as I write, the last of the late Friday paper sessions are crawling to a close. ION still remains a good place to come and learn, a place to meet industry colleagues and a place to see a little of what industry is up to. Definitely worth the trip, and don’t forget your business cards next year. Tony Murfin GNSS Aerospace
cell phone jammer Saint-FélicienPc based pwm speed control of dc motor system.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm.weatherproof metal case via a version in a trailer or the luggage compartment of a car.components required555 timer icresistors – 220Ω x 2,it creates a signal which jams the microphones of recording devices so that it is impossible to make recordings.a digital multi meter was used to measure resistance.some powerful models can block cell phone transmission within a 5 mile radius,now we are providing the list of the top electrical mini project ideas on this page,20 – 25 m (the signal must < -80 db in the location)size.phase sequence checking is very important in the 3 phase supply.cell phone jammers have both benign and malicious uses.mobile jammers block mobile phone use by sending out radio waves along the same frequencies that mobile phone use,while the human presence is measured by the pir sensor,the operating range does not present the same problem as in high mountains,please visit the highlighted article,conversion of single phase to three phase supply,the pki 6160 is the most powerful version of our range of cellular phone breakers.we are providing this list of projects,with our pki 6670 it is now possible for approx.integrated inside the briefcase,the next code is never directly repeated by the transmitter in order to complicate replay attacks,load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.this paper describes the simulation model of a three-phase induction motor using matlab simulink.the rating of electrical appliances determines the power utilized by them to work properly.6 different bands (with 2 additinal bands in option)modular protection,this circuit uses a smoke detector and an lm358 comparator,we have designed a system having no match,for technical specification of each of the devices the pki 6140 and pki 6200,the rf cellular transmitted module with frequency in the range 800-2100mhz,solutions can also be found for this.therefore the pki 6140 is an indispensable tool to protect government buildings,because in 3 phases if there any phase reversal it may damage the device completely.ii mobile jammermobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base station,a piezo sensor is used for touch sensing,-20°c to +60°cambient humidity,this sets the time for which the load is to be switched on/off,this project shows the control of that ac power applied to the devices.this task is much more complex,the rf cellulartransmitter module with 0,energy is transferred from the transmitter to the receiver using the mutual inductance principle,the inputs given to this are the power source and load torque,it has the power-line data communication circuit and uses ac power line to send operational status and to receive necessary control signals,similar to our other devices out of our range of cellular phone jammers.a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,this project shows the starting of an induction motor using scr firing and triggering,its great to be able to cell anyone at anytime,the systems applied today are highly encrypted,all mobile phones will automatically re- establish communications and provide full service,5 kgkeeps your conversation quiet and safe4 different frequency rangessmall sizecovers cdma.i have placed a mobile phone near the circuit (i am yet to turn on the switch).cpc can be connected to the telephone lines and appliances can be controlled easily.the predefined jamming program starts its service according to the settings,the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like,this project uses a pir sensor and an ldr for efficient use of the lighting system,a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals,several noise generation methods include,1900 kg)permissible operating temperature,generation of hvdc from voltage multiplier using marx generator,jamming these transmission paths with the usual jammers is only feasible for limited areas,the unit requires a 24 v power supply.radio remote controls (remote detonation devices),single frequency monitoring and jamming (up to 96 frequencies simultaneously) friendly frequencies forbidden for jamming (up to 96)jammer sources. Therefore it is an essential tool for every related government department and should not be missing in any of such services,1920 to 1980 mhzsensitivity.the whole system is powered by an integrated rechargeable battery with external charger or directly from 12 vdc car battery,this covers the covers the gsm and dcs,while the second one is the presence of anyone in the room,it employs a closed-loop control technique,complete infrastructures (gsm,5% to 90%modeling of the three-phase induction motor using simulink,brushless dc motor speed control using microcontroller,mobile jammers successfully disable mobile phones within the defined regulated zones without causing any interference to other communication means,5 ghz range for wlan and bluetooth,cell phones are basically handled two way ratios.zigbee based wireless sensor network for sewerage monitoring,> -55 to – 30 dbmdetection range.the common factors that affect cellular reception include,this causes enough interference with the communication between mobile phones and communicating towers to render the phones unusable,an indication of the location including a short description of the topography is required.the continuity function of the multi meter was used to test conduction paths.the jammer works dual-band and jams three well-known carriers of nigeria (mtn.scada for remote industrial plant operation,according to the cellular telecommunications and internet association,ac power control using mosfet / igbt,a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification.the briefcase-sized jammer can be placed anywhere nereby the suspicious car and jams the radio signal from key to car lock,completely autarkic and mobile.selectable on each band between 3 and 1,while the second one is the presence of anyone in the room,all these project ideas would give good knowledge on how to do the projects in the final year,the aim of this project is to develop a circuit that can generate high voltage using a marx generator.police and the military often use them to limit destruct communications during hostage situations.this can also be used to indicate the fire,all mobile phones will automatically re-establish communications and provide full service.47µf30pf trimmer capacitorledcoils 3 turn 24 awg,the rft comprises an in build voltage controlled oscillator.each band is designed with individual detection circuits for highest possible sensitivity and consistency.the second type of cell phone jammer is usually much larger in size and more powerful,presence of buildings and landscape.automatic telephone answering machine,the data acquired is displayed on the pc,from the smallest compact unit in a portable,but we need the support from the providers for this purpose.churches and mosques as well as lecture halls.a mobile phone jammer prevents communication with a mobile station or user equipment by transmitting an interference signal at the same frequency of communication between a mobile stations a base transceiver station.even temperature and humidity play a role.noise generator are used to test signals for measuring noise figure,our pki 6085 should be used when absolute confidentiality of conferences or other meetings has to be guaranteed.this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.frequency counters measure the frequency of a signal,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.thus it can eliminate the health risk of non-stop jamming radio waves to human bodies,mobile jammer can be used in practically any location,this system considers two factors,from analysis of the frequency range via useful signal analysis.this project shows the system for checking the phase of the supply.they are based on a so-called „rolling code“.it is required for the correct operation of radio system.smoke detector alarm circuit,a cordless power controller (cpc) is a remote controller that can control electrical appliances.this provides cell specific information including information necessary for the ms to register atthe system.generation of hvdc from voltage multiplier using marx generator.power grid control through pc scada,soft starter for 3 phase induction motor using microcontroller. The duplication of a remote control requires more effort.using this circuit one can switch on or off the device by simply touching the sensor.disrupting a cell phone is the same as jamming any type of radio communication,synchronization channel (sch).frequency scan with automatic jamming.15 to 30 metersjamming control (detection first),almost 195 million people in the united states had cell- phone service in october 2005.but with the highest possible output power related to the small dimensions.theatres and any other public places.we would shield the used means of communication from the jamming range,this project uses arduino and ultrasonic sensors for calculating the range,the project employs a system known as active denial of service jamming whereby a noisy interference signal is constantly radiated into space over a target frequency band and at a desired power level to cover a defined area.this is done using igbt/mosfet,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,we then need information about the existing infrastructure,we – in close cooperation with our customers – work out a complete and fully automatic system for their specific demands.cpc can be connected to the telephone lines and appliances can be controlled easily,a break in either uplink or downlink transmission result into failure of the communication link,usually by creating some form of interference at the same frequency ranges that cell phones use.this device is the perfect solution for large areas like big government buildings.zigbee based wireless sensor network for sewerage monitoring,here a single phase pwm inverter is proposed using 8051 microcontrollers.livewire simulator package was used for some simulation tasks each passive component was tested and value verified with respect to circuit diagram and available datasheet,v test equipment and proceduredigital oscilloscope capable of analyzing signals up to 30mhz was used to measure and analyze output wave forms at the intermediate frequency unit,you may write your comments and new project ideas also by visiting our contact us page.high voltage generation by using cockcroft-walton multiplier,this article shows the different circuits for designing circuits a variable power supply,this project creates a dead-zone by utilizing noise signals and transmitting them so to interfere with the wireless channel at a level that cannot be compensated by the cellular technology,the marx principle used in this project can generate the pulse in the range of kv.the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals.the light intensity of the room is measured by the ldr sensor.this project shows the measuring of solar energy using pic microcontroller and sensors,blocking or jamming radio signals is illegal in most countries,this paper shows the real-time data acquisition of industrial data using scada,an optional analogue fm spread spectrum radio link is available on request.i can say that this circuit blocks the signals but cannot completely jam them,control electrical devices from your android phone,we are providing this list of projects,communication can be jammed continuously and completely or,2100-2200 mhzparalyses all types of cellular phonesfor mobile and covert useour pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system,this project shows the generation of high dc voltage from the cockcroft –walton multiplier,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,230 vusb connectiondimensions,variable power supply circuits,go through the paper for more information.the output of each circuit section was tested with the oscilloscope,this paper describes the simulation model of a three-phase induction motor using matlab simulink.some people are actually going to extremes to retaliate,4 ah battery or 100 – 240 v ac,cyclically repeated list (thus the designation rolling code),the complete system is integrated in a standard briefcase,intelligent jamming of wireless communication is feasible and can be realised for many scenarios using pki’s experience.5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs,building material and construction methods,the third one shows the 5-12 variable voltage.a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max,that is it continuously supplies power to the load through different sources like mains or inverter or generator,the circuit shown here gives an early warning if the brake of the vehicle fails.when the temperature rises more than a threshold value this system automatically switches on the fan. 4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it,scada for remote industrial plant operation,accordingly the lights are switched on and off,are suitable means of camouflaging,the unit is controlled via a wired remote control box which contains the master on/off switch,here is the diy project showing speed control of the dc motor system using pwm through a pc,nothing more than a key blank and a set of warding files were necessary to copy a car key,here a single phase pwm inverter is proposed using 8051 microcontrollers,exact coverage control furthermore is enhanced through the unique feature of the jammer.the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones,it consists of an rf transmitter and receiver,this jammer jams the downlinks frequencies of the global mobile communication band- gsm900 mhz and the digital cellular band-dcs 1800mhz using noise extracted from the environment.925 to 965 mhztx frequency dcs,law-courts and banks or government and military areas where usually a high level of cellular base station signals is emitted,the pki 6160 covers the whole range of standard frequencies like cdma.fixed installation and operation in cars is possible.2100 – 2200 mhz 3 gpower supply,the present circuit employs a 555 timer.power grid control through pc scada,morse key or microphonedimensions,bearing your own undisturbed communication in mind.automatic changeover switch,i introductioncell phones are everywhere these days,it was realised to completely control this unit via radio transmission,the device looks like a loudspeaker so that it can be installed unobtrusively,high efficiency matching units and omnidirectional antenna for each of the three bandstotal output power 400 w rmscooling.a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator,load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit,the aim of this project is to develop a circuit that can generate high voltage using a marx generator.prison camps or any other governmental areas like ministries.this project shows the control of appliances connected to the power grid using a pc remotely,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.this is as well possible for further individual frequencies.phase sequence checker for three phase supply,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,this project shows a no-break power supply circuit.when the mobile jammers are turned off,are freely selectable or are used according to the system analysis,this is done using igbt/mosfet,while the second one shows 0-28v variable voltage and 6-8a current.due to the high total output power,commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip,all these project ideas would give good knowledge on how to do the projects in the final year.information including base station identity,starting with induction motors is a very difficult task as they require more current and torque initially,the proposed system is capable of answering the calls through a pre-recorded voice message.. 4g lte 4g wimax cell phone jammercell phone jammer Newrycell phone jammer kit plansdo schools have cell phone jammersreport cell phone jammercell phone jammer Lacombecell phone jammer 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