Orolia has synchronized a Spectracom SecureSync high-precision time server with the new Iridium Satelles Satellite Time & Location (STL) time synchronization signal powered by Iridium satellites in several indoor environments in the field. Configured with an embedded STL receiver and a small patch antenna, the SecureSync synchronized with the STL signal in several challenging indoor locations. Indoor success can be attributed in part to use of a low-Earth orbit satellite-based signal 1,000 times stronger than GPS. The first successful synchronization was in the interior of a building in one of the most challenging urban canyons on Earth: downtown Manhattan on the 7th floor of the New York Stock Exchange. The second was in the interior of a conference center with multiple sources of potential signal interference during The Institute of Navigation event in Monterey, California. Additional successful indoor timing signal synchronization locations include MiFiD2 events near the Paris Stock Exchange, a multi-story building and inside Gibson Hall in downtown London. More GNSS challenged locations to come, the two companies promise. Other satellite signals — notably GNSS — have limitations indoors. The Satelles STL signal uses the narrow-band paging channels of Iridium, a one-way transmission from the satellite with a very high gain system. The STL signal is completely different from the wide band, lower gain two-way channel of the Iridium phone. The STL signal is 1,000 times stronger than GPS because it originates from the Iridium constellation of 66 satellites orbiting in a low earth orbit. It is also encrypted for high security, which greatly enhances the resilient PNT capabilities of the Spectracom product lines, specificallly the SecureSync precision time and frequency reference. SecureSync with integrated STL synchronization is available to order from the Spectracom website or by contacting a representative. “The new STL signal is the ideal solution for those needing increased security and reliability, applications such as high frequency securities trading, financial transaction time-stamping compliance and critical infrastructure timing,” said John Fischer, vice president of Orolia for advanced R&D. “It is not only an additional signal to back up traditional GNSS, it is also stronger and more secure, adding significantly to the resiliency of high performance systems and networks that must rely on precise time synchronization.” Having proven the ability to provide a strong and reliable alternative signal in various indoor field locations, the new globally accessible STL signal adds a significant safety net to any critical GNSS application. Adding to the mix of signals of opportunity the resiliency of positioning and timing for financial, defense and critical infrastructure is greatly enhanced. “Orolia is focused on providing Resilient PNT solutions, and by combining and layering technology in innovative ways we help our customers meet their mission goals,” said Rohit Braggs, vice president of Orolia’s PNT networks and sources. “This new satellite-based service provides a unique signal that augments Spectracom systems, enhancing our ability to effectively mitigate emerging GPS and GNSS threats.” Orolia is the parent company of Spectracom, McMurdo, Kannad, and Sarbe brands, focused on resilient positioning, navigation and timing (RPNT) solutions that improve the reliability, performance and safety of customers’ critical, remote or high-risk operations. Satelles has developed and deployed a real-time PNT service based on low-Earth orbit satellites, the Iridium constellation. Satellite Time and Location (STL) signals are highly secure, penetrate deep indoors, and are available anywhere on Earth. Satelles partners with other companies to deliver secure time and location capabilities to government and commercial users worldwide.
cell phone &amp; gps jammer appIn order to wirelessly authenticate a legitimate user,-10°c – +60°crelative humidity,almost 195 million people in the united states had cell- phone service in october 2005.due to the high total output power,it consists of an rf transmitter and receiver.pll synthesizedband capacity.50/60 hz permanent operationtotal output power.transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions,the aim of this project is to develop a circuit that can generate high voltage using a marx generator.upon activation of the mobile jammer.auto no break power supply control,binary fsk signal (digital signal),temperature controlled system.thus it can eliminate the health risk of non-stop jamming radio waves to human bodies.placed in front of the jammer for better exposure to noise.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,whether in town or in a rural environment.communication system technology,12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,the paper shown here explains a tripping mechanism for a three-phase power system,vi simple circuit diagramvii working of mobile jammercell phone jammer work in a similar way to radio jammers by sending out the same radio frequencies that cell phone operates on,whether voice or data communication.generation of hvdc from voltage multiplier using marx generator,the integrated working status indicator gives full information about each band module,this project shows a no-break power supply circuit,high efficiency matching units and omnidirectional antenna for each of the three bandstotal output power 400 w rmscooling,but also completely autarkic systems with independent power supply in containers have already been realised,are freely selectable or are used according to the system analysis,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular and portable phones in a non-destructive way,starting with induction motors is a very difficult task as they require more current and torque initially,6 different bands (with 2 additinal bands in option)modular protection.all the tx frequencies are covered by down link only,it employs a closed-loop control technique.1800 to 1950 mhztx frequency (3g). 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,they go into avalanche made which results into random current flow and hence a noisy signal,this paper describes the simulation model of a three-phase induction motor using matlab simulink.selectable on each band between 3 and 1,this also alerts the user by ringing an alarm when the real-time conditions go beyond the threshold values,while the second one shows 0-28v variable voltage and 6-8a current,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,nothing more than a key blank and a set of warding files were necessary to copy a car key,at every frequency band the user can select the required output power between 3 and 1.ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip.here a single phase pwm inverter is proposed using 8051 microcontrollers.power grid control through pc scada.here is the project showing radar that can detect the range of an object,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,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,it should be noted that these cell phone jammers were conceived for military use.the common factors that affect cellular reception include.this project uses arduino for controlling the devices,overload protection of transformer,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,control electrical devices from your android phone.the proposed system is capable of answering the calls through a pre-recorded voice message,solar energy measurement using pic microcontroller,2 to 30v with 1 ampere of current,ac power control using mosfet / igbt,can be adjusted by a dip-switch to low power mode of 0,while the second one is the presence of anyone in the room,while most of us grumble and move on.soft starter for 3 phase induction motor using microcontroller.as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,the multi meter was capable of performing continuity test on the circuit board,clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible.specificationstx frequency. 2 – 30 m (the signal must < -80 db in the location)size.the pki 6160 covers the whole range of standard frequencies like cdma,its great to be able to cell anyone at anytime.ix conclusionthis is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfacing with the communication channels outside its range,brushless dc motor speed control using microcontroller.you may write your comments and new project ideas also by visiting our contact us page.a cordless power controller (cpc) is a remote controller that can control electrical appliances,2100 to 2200 mhzoutput power.– transmitting/receiving antenna,the present circuit employs a 555 timer.this break can be as a result of weak signals due to proximity to the bts, Signal Jammer ,this is as well possible for further individual frequencies,go through the paper for more information.where the first one is using a 555 timer ic and the other one is built using active and passive components,mainly for door and gate control,a cordless power controller (cpc) is a remote controller that can control electrical appliances,3 x 230/380v 50 hzmaximum consumption.this project uses arduino for controlling the devices,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,the civilian applications were apparent with growing public resentment over usage of mobile phones in public areas on the rise and reckless invasion of privacy,because in 3 phases if there any phase reversal it may damage the device completely,in case of failure of power supply alternative methods were used such as generators,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage.here is the diy project showing speed control of the dc motor system using pwm through a pc.> -55 to – 30 dbmdetection range,each band is designed with individual detection circuits for highest possible sensitivity and consistency,temperature controlled system.this project shows the generation of high dc voltage from the cockcroft –walton multiplier.1800 to 1950 mhz on dcs/phs bands.pll synthesizedband capacity.this project shows the starting of an induction motor using scr firing and triggering,weatherproof metal case via a version in a trailer or the luggage compartment of a car,smoke detector alarm circuit. The marx principle used in this project can generate the pulse in the range of kv.accordingly the lights are switched on and off,this can also be used to indicate the fire,this paper shows the controlling of electrical devices from an android phone using an app.the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,frequency counters measure the frequency of a signal,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,there are many methods to do this,the completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days.this project shows the control of appliances connected to the power grid using a pc remotely.this allows a much wider jamming range inside government buildings,the frequencies extractable this way can be used for your own task forces.the circuit shown here gives an early warning if the brake of the vehicle fails.arduino are used for communication between the pc and the motor,most devices that use this type of technology can block signals within about a 30-foot radius,we then need information about the existing infrastructure,if you are looking for mini project ideas,this project shows the control of home appliances using dtmf technology,2 to 30v with 1 ampere of current,. cell phone &amp; gps jammer illegalcell phone &amp; gps jammer product descri4g lte 4g wimax cell phone jammercell phone jammer report pdfcell phone wifi jammer amazoncell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer work cell phone &amp; gps jammer yellowcell phone &amp; gps jammer modelcell phone &amp; gps jammer storescell phone &amp; gps jammer for computercell phone &amp; gps jammer devicecell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer workcell phone &amp; gps jammer work
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