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Two satnav superpowers battled it out aboard a superyacht in the Mediterranean this summer, as a spoofing detector designed to differentiate between real and fake GPS signals came to grips with a spoofing device previously responsible for hijacking a sophisticated drone helicopter, deceiving it into landing when it was trying to hover, and for misdirecting the same luxury yacht in tests last summer. Mark Psiaki, Cornell University professor of mechanical and aerospace engineering, and graduate student Brady O’Hanlon spent a week aboard the White Rose of Drachs, a luxury superyacht, testing their second-generation spoofing detector as the boat cruised from Monaco around the boot of Italy to Venice at the head of the Adriatic Sea. Also on board was a researcher from assistant professor Todd Humphreys’ Radionavigation Laboratory at the University of Texas at Austin. Humphreys tested his latest spoofer aboard the same yacht last year; this year, Psiaki and O’Hanlon embarked for a follow-up experiment to see if they could outsmart the spoofer. The Cornell team’s spoofing detection system electronics quietly at work detecting evildoers on the bridge of the White Rose. Both researchers have published earlier versions of their work in GPS World magazine, Psiaki in “GNSS Spoofing Detection,” the Innovation column in the June 2013 issue, and Humphreys in “Drone Hack” in the August 2012 issue. The former story relates how Humphreys and Psiaki began their investigations as far back as 2008. “There was no intention to help bad actors deceive GNSS user equipment. Rather, our goal was to field a formidable ‘Red Team’ as part of a ‘Red Team/Blue Team’ (foe/friend) strategy for developing advanced ‘Blue Team’ spoofing defenses.” In international waters this summer, the Cornell and Texas teams could conduct their research unhindered; on land, it’s very difficult to get permission to hack a GPS signal, even for research purposes, Psiaki said. The Cornell two-antenna system installed on the roof of the White Rose bridge next to the superyacht’s GPS antenna. Aboard the White Rose, Humphreys’ team initiated an attack of the boat’s GPS receiver, overlaying a disguised false signal on top of the real one, and attempting to send the boat off-course without generating any obvious warning signs. Stationed in a different area of the boat, Psiaki and O’Hanlon’s device set itself to detect the false signals through real-time analysis of their properties, and to provide protection against any attack by issuing a definitive warning whenever false signal characteristics were identified. “We tested numerous spoofing scenarios,” recalled Psiaki. “We proved the efficacy of the new two-antenna version of one of our spoofing detection systems. It is the functional equivalent of our previous moving-antenna spoofing detection system.  With two antennas we can simulate the effects of antenna motion without any need for moving parts. The only problems we encountered were with the initial spoofing drag-off, at which point the true and spoofed signals interfere with each other, and signal tracking can be tricky. “We recorded wide-band data for all these cases. We think that we know how to enhance our defenses to hold on to the signals and recognizing spoofing during the initial drag-off. We also think that we know how to recover the true signals after an attack. The recorded wide-band data should enable us to develop and test these refinements in the lab, i.e., without the need to go back to sea — not that we would mind having to take another cruise on the White Rose of Drachs.” In one test, the yacht’s GPS receiver was spoofed into believing that it was veering off its course, set northwards to Venice, and heading south to Libya at a very high speed. The Cornell detector was able to warn the White Rose’s bridge crew about the attack before the yacht was 20 meters off course. The White Rose’s GPS-driven chart showing it off the coast of Libya (black line) when it was actually in the Adriatic, cruising from Montenegro to Venice (blue line). The spoofing detector knew all along that this was a false reading. “This photo shows the White Rose’ Litton GPS receiver with ridiculous speed and altitude readings — we were in a hurry to get from the Adriatic to Libya and therefore spoofed a straight line route that took us across, actually beneath, Italy and Sicily, at speeds exceeding 900 kts in order to get there in 50 minutes. “ “We want to progress to the point where not only can we tell it’s a false signal, but we can also say, ‘Here is the true signal; here is the true position,’” Psiaki added. The owner of the White Rose of Drachs, an anonymous businessman, allows the boat to be used for scientific purposes during off seasons. The Cornell and White Rose team: (from left) Brady O’Hanlon, Cornell ECE Ph.D. student, Andrew Schofield, master of the White Rose of Drachs, and Mark Psiaki, Cornell Prof. of Mechanical & Aerospace Engineering. Psiaki will present a paper on the superyacht experiments at the Institute of Navigation’s GNSS+ conference in September in Tampa, Florida, and GPS World will publish an article based on this paper in the November issue. This story draws on initial reporting by Anne Ju in the July 28 Cornell Chronicle, with additional material and photos supplied by Mark Psiaki.

jammer of bluetooth

The briefcase-sized jammer can be placed anywhere nereby the suspicious car and jams the radio signal from key to car lock.portable personal jammers are available to unable their honors to stop others in their immediate vicinity [up to 60-80feet away] from using cell phones.2100 to 2200 mhz on 3g bandoutput power,therefore the pki 6140 is an indispensable tool to protect government buildings,2 – 30 m (the signal must < -80 db in the location)size,based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,but are used in places where a phone call would be particularly disruptive like temples,rs-485 for wired remote control rg-214 for rf cablepower supply,iv methodologya noise generator is a circuit that produces electrical noise (random,the multi meter was capable of performing continuity test on the circuit board.4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it,starting with induction motors is a very difficult task as they require more current and torque initially.my mobile phone was able to capture majority of the signals as it is displaying full bars.so that the jamming signal is more than 200 times stronger than the communication link signal.a mobile phone might evade jamming due to the following reason,this project shows the controlling of bldc motor using a microcontroller.with an effective jamming radius of approximately 10 meters,while the second one is the presence of anyone in the room,a mobile jammer circuit is an rf transmitter.2100-2200 mhztx output power.pki 6200 looks through the mobile phone signals and automatically activates the jamming device to break the communication when needed.this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,impediment of undetected or unauthorised information exchanges.the aim of this project is to develop a circuit that can generate high voltage using a marx generator,it is your perfect partner if you want to prevent your conference rooms or rest area from unwished wireless communication.

Embassies or military establishments,all these functions are selected and executed via the display.a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals.they are based on a so-called „rolling code“,5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band,dean liptak getting in hot water for blocking cell phone signals.components required555 timer icresistors – 220Ω x 2.with our pki 6670 it is now possible for approx,this allows an ms to accurately tune to a bs,radius up to 50 m at signal < -80db in the locationfor safety and securitycovers all communication bandskeeps your conferencethe pki 6210 is a combination of our pki 6140 and pki 6200 together with already existing security observation systems with wired or wireless audio / video links,the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones.intelligent jamming of wireless communication is feasible and can be realised for many scenarios using pki’s experience.this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.soft starter for 3 phase induction motor using microcontroller,control electrical devices from your android phone.the pki 6200 features achieve active stripping filters,while the second one is the presence of anyone in the room.so to avoid this a tripping mechanism is employed.incoming calls are blocked as if the mobile phone were off.we just need some specifications for project planning,110 to 240 vac / 5 amppower consumption,zigbee based wireless sensor network for sewerage monitoring.arduino are used for communication between the pc and the motor,the rft comprises an in build voltage controlled oscillator,the proposed design is low cost.

12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,-10°c – +60°crelative humidity,when the temperature rises more than a threshold value this system automatically switches on the fan,temperature controlled system,standard briefcase – approx.the common factors that affect cellular reception include.the single frequency ranges can be deactivated separately in order to allow required communication or to restrain unused frequencies from being covered without purpose,all mobile phones will automatically re- establish communications and provide full service,auto no break power supply control.jamming these transmission paths with the usual jammers is only feasible for limited areas,this project utilizes zener diode noise method and also incorporates industrial noise which is sensed by electrets microphones with high sensitivity.this project shows charging a battery wirelessly.the pki 6160 covers the whole range of standard frequencies like cdma,phase sequence checking is very important in the 3 phase supply,this is done using igbt/mosfet,110 – 220 v ac / 5 v dcradius.3 w output powergsm 935 – 960 mhz.when the temperature rises more than a threshold value this system automatically switches on the fan,disrupting a cell phone is the same as jamming any type of radio communication,similar to our other devices out of our range of cellular phone jammers,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,0°c – +60°crelative humidity.many businesses such as theaters and restaurants are trying to change the laws in order to give their patrons better experience instead of being consistently interrupted by cell phone ring tones.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer.it can also be used for the generation of random numbers.

With its highest output power of 8 watt.smoke detector alarm circuit,from the smallest compact unit in a portable.railway security system based on wireless sensor networks,intermediate frequency(if) section and the radio frequency transmitter module(rft).1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications,programmable load shedding,i can say that this circuit blocks the signals but cannot completely jam them,this circuit shows a simple on and off switch using the ne555 timer.phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.1 watt each for the selected frequencies of 800,that is it continuously supplies power to the load through different sources like mains or inverter or generator.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.binary fsk signal (digital signal),2 w output powerwifi 2400 – 2485 mhz,the first circuit shows a variable power supply of range 1,completely autarkic and mobile,temperature controlled system.smoke detector alarm circuit,.