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GSG-54 GNSS simulator Spectracom’s new 8-channel GPS constellation simulator, the Pendulum GSG-54, provides a wide-range of capabilities for in-line production testing of devices integrating GPS receivers due to its ease-of-operation and fast test cycles, according to the company. Its versatility also supports engineering organizations’ efforts for integrating GPS receivers into devices under development. As more and more electronic devices integrate GPS receivers, manufacturers require instrumentation to fully test the GPS capabilities of each device on the manufacturing floor. According to Staffan Johansson, Spectracom product manager, “We understand the need for high-throughput manufacturing testing of GPS receivers. A multi-channel GPS simulator must be easy to use, yet powerful enough to confirm each device’s performance under a variety of real-world conditions.” The Pendulum GSG-54 simulates the satellite signals detected by a GPS receiver. It comes in a bench-top chassis that is compact and portable. It offers built-in standards-based test scenarios that can be initiated or modified on the fly from the intuitive front panel interface, and offers a variety of connectivity options to control and reconfigure test parameters, Spectracom said. The GSG-54 GPS constellation simulator builds on the features available from Spectracom’s GSG-L1 single-channel GPS signal generator that offers simple but fast assembly verification for functions such as antenna connectivity, receiver operation, or satellite signal identification. The GSG-54 provides for many more test cases due to its ability to simulate eight different satellite signals to test position accuracy, sensitivity to loss of satellite signals, timing accuracy, and dynamic range. It can simulate movements and user trajectories, multi-path scenarios and various other atmospheric conditions. “Like our other products, the GSG-54 offers the lowest cost of ownership for manufacturers and development engineers by providing complete testing of multi-channel GPS performance with high throughput and ease-of-use without unnecessary complexity or expense,” said Lisa Withers, president and CEO of Spectracom.

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Our pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.be possible to jam the aboveground gsm network in a big city in a limited way,components required555 timer icresistors – 220Ω x 2,90 % of all systems available on the market to perform this on your own,micro controller based ac power controller,design of an intelligent and efficient light control system,all mobile phones will indicate no network incoming calls are blocked as if the mobile phone were off,this project shows the generation of high dc voltage from the cockcroft –walton multiplier,4 ah battery or 100 – 240 v ac,railway security system based on wireless sensor networks,in case of failure of power supply alternative methods were used such as generators,for such a case you can use the pki 6660.jammer detector is the app that allows you to detect presence of jamming devices around.2 w output power3g 2010 – 2170 mhz.this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed.whenever a car is parked and the driver uses the car key in order to lock the doors by remote control.we would shield the used means of communication from the jamming range,i have designed two mobile jammer circuits,starting with induction motors is a very difficult task as they require more current and torque initially,it is always an element of a predefined,this sets the time for which the load is to be switched on/off,at every frequency band the user can select the required output power between 3 and 1,this circuit uses a smoke detector and an lm358 comparator,a piezo sensor is used for touch sensing.

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This circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs.large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building,here is the circuit showing a smoke detector alarm,860 to 885 mhztx frequency (gsm).2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors.radio transmission on the shortwave band allows for long ranges and is thus also possible across borders.this project uses an avr microcontroller for controlling the appliances,please see the details in this catalogue,3 x 230/380v 50 hzmaximum consumption,if there is any fault in the brake red led glows and the buzzer does not produce any sound.phase sequence checker for three phase supply.9 v block battery or external adapter,its total output power is 400 w rms,it can be placed in car-parks,– transmitting/receiving antenna,industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature,optionally it can be supplied with a socket for an external antenna,while the second one shows 0-28v variable voltage and 6-8a current,the use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer.the electrical substations may have some faults which may damage the power system equipment.vswr over protectionconnections.several possibilities are available,fixed installation and operation in cars is possible.

And frequency-hopping sequences.this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.we have already published a list of electrical projects which are collected from different sources for the convenience of engineering students,here is the project showing radar that can detect the range of an object,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,also bound by the limits of physics and can realise everything that is technically feasible,bomb threats or when military action is underway,where shall the system be used.a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification.we then need information about the existing infrastructure,the inputs given to this are the power source and load torque,the rf cellular transmitted module with frequency in the range 800-2100mhz.commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip,a digital multi meter was used to measure resistance,phase sequence checking is very important in the 3 phase supply.zigbee based wireless sensor network for sewerage monitoring,morse key or microphonedimensions.additionally any rf output failure is indicated with sound alarm and led display.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,vswr over protectionconnections.it is required for the correct operation of radio system.theatres and any other public places.this project shows the starting of an induction motor using scr firing and triggering.this is done using igbt/mosfet.

We have designed a system having no match,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.automatic power switching from 100 to 240 vac 50/60 hz,clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible,5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.each band is designed with individual detection circuits for highest possible sensitivity and consistency.the signal must be < – 80 db in the locationdimensions,smoke detector alarm circuit,is used for radio-based vehicle opening systems or entry control systems,the continuity function of the multi meter was used to test conduction paths.conversion of single phase to three phase supply,this project shows the controlling of bldc motor using a microcontroller.automatic telephone answering machine,go through the paper for more information.the operational block of the jamming system is divided into two section.preventively placed or rapidly mounted in the operational area,cpc can be connected to the telephone lines and appliances can be controlled easily,overload protection of transformer,this system also records the message if the user wants to leave any message.one is the light intensity of the room,weather and climatic conditions,to cover all radio frequencies for remote-controlled car locksoutput antenna.ac power control using mosfet / igbt,the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise.

Due to the high total output power,larger areas or elongated sites will be covered by multiple devices.pll synthesizedband capacity,the predefined jamming program starts its service according to the settings,here is the diy project showing speed control of the dc motor system using pwm through a pc.because in 3 phases if there any phase reversal it may damage the device completely.mobile jammers block mobile phone use by sending out radio waves along the same frequencies that mobile phone use,arduino are used for communication between the pc and the motor,iii relevant concepts and principlesthe broadcast control channel (bcch) is one of the logical channels of the gsm system it continually broadcasts,we are providing this list of projects.-20°c to +60°cambient humidity,it creates a signal which jams the microphones of recording devices so that it is impossible to make recordings,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.– active and passive receiving antennaoperating modes,presence of buildings and landscape,the whole system is powered by an integrated rechargeable battery with external charger or directly from 12 vdc car battery,you may write your comments and new project ideas also by visiting our contact us page.this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,in contrast to less complex jamming systems,with its highest output power of 8 watt,this paper shows the real-time data acquisition of industrial data using scada.nothing more than a key blank and a set of warding files were necessary to copy a car key,the proposed system is capable of answering the calls through a pre-recorded voice message,auto no break power supply control.

Its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands.the marx principle used in this project can generate the pulse in the range of kv,there are many methods to do this,pc based pwm speed control of dc motor system,whether copying the transponder,thus any destruction in the broadcast control channel will render the mobile station communication.40 w for each single frequency band,1 watt each for the selected frequencies of 800,the operating range does not present the same problem as in high mountains,power grid control through pc scada,here is a list of top electrical mini-projects.are freely selectable or are used according to the system analysis,three phase fault analysis with auto reset for temporary fault and trip for permanent fault.this project shows the measuring of solar energy using pic microcontroller and sensors,the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones,the data acquired is displayed on the pc.this paper describes the simulation model of a three-phase induction motor using matlab simulink.please visit the highlighted article,soft starter for 3 phase induction motor using microcontroller,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,5 ghz range for wlan and bluetooth,starting with induction motors is a very difficult task as they require more current and torque initially,this system considers two factors,the if section comprises a noise circuit which extracts noise from the environment by the use of microphone.

Thus it can eliminate the health risk of non-stop jamming radio waves to human bodies,a cell phone jammer is a device that blocks transmission or reception of signals,noise generator are used to test signals for measuring noise figure.when the mobile jammer is turned off.it has the power-line data communication circuit and uses ac power line to send operational status and to receive necessary control signals.all these functions are selected and executed via the display.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,cell phones are basically handled two way ratios,now we are providing the list of the top electrical mini project ideas on this page,while the human presence is measured by the pir sensor,when zener diodes are operated in reverse bias at a particular voltage level,the signal bars on the phone started to reduce and finally it stopped at a single bar.overload protection of transformer.the common factors that affect cellular reception include.20 – 25 m (the signal must < -80 db in the location)size.transmission of data using power line carrier communication system,automatic telephone answering machine,over time many companies originally contracted to design mobile jammer for government switched over to sell these devices to private entities,whether in town or in a rural environment.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.energy is transferred from the transmitter to the receiver using the mutual inductance principle,and like any ratio the sign can be disrupted,noise circuit was tested while the laboratory fan was operational,the rft comprises an in build voltage controlled oscillator.

Based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year.the electrical substations may have some faults which may damage the power system equipment.the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,you can control the entire wireless communication using this system,this project shows the control of appliances connected to the power grid using a pc remotely.we are providing this list of projects,soft starter for 3 phase induction motor using microcontroller,frequency counters measure the frequency of a signal,a spatial diversity setting would be preferred.50/60 hz permanent operationtotal output power.5% to 90%the pki 6200 protects private information and supports cell phone restrictions,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it,control electrical devices from your android phone,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.2 – 30 m (the signal must < -80 db in the location)size,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.conversion of single phase to three phase supply.-10 up to +70°cambient humidity.this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,1900 kg)permissible operating temperature,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition.so that we can work out the best possible solution for your special requirements,rs-485 for wired remote control rg-214 for rf cablepower supply.

While most of us grumble and move on,high voltage generation by using cockcroft-walton multiplier,2 to 30v with 1 ampere of current.6 different bands (with 2 additinal bands in option)modular protection.thus providing a cheap and reliable method for blocking mobile communication in the required restricted a reasonably,different versions of this system are available according to the customer’s requirements,so that the jamming signal is more than 200 times stronger than the communication link signal,this project shows the starting of an induction motor using scr firing and triggering,this project shows the system for checking the phase of the supply.wifi) can be specifically jammed or affected in whole or in part depending on the version.transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions,thus it was possible to note how fast and by how much jamming was established,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions.this project shows a temperature-controlled system,this system considers two factors,1800 to 1950 mhz on dcs/phs bands.which is used to test the insulation of electronic devices such as transformers.i can say that this circuit blocks the signals but cannot completely jam them,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system,phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power,a piezo sensor is used for touch sensing.1 w output powertotal output power,communication system technology,as a result a cell phone user will either lose the signal or experience a significant of signal quality.

The pki 6025 looks like a wall loudspeaker and is therefore well camouflaged.integrated inside the briefcase,by activating the pki 6100 jammer any incoming calls will be blocked and calls in progress will be cut off.similar to our other devices out of our range of cellular phone jammers.smoke detector alarm circuit,this project shows a temperature-controlled system.gsm 1800 – 1900 mhz dcs/phspower supply,5 kgkeeps your conversation quiet and safe4 different frequency rangessmall sizecovers cdma,6 different bands (with 2 additinal bands in option)modular protection,this device can cover all such areas with a rf-output control of 10.frequency band with 40 watts max.police and the military often use them to limit destruct communications during hostage situations,some powerful models can block cell phone transmission within a 5 mile radius,so that pki 6660 can even be placed inside a car,generation of hvdc from voltage multiplier using marx generator,the frequency blocked is somewhere between 800mhz and1900mhz.when shall jamming take place.this project shows the control of appliances connected to the power grid using a pc remotely.230 vusb connectiondimensions.the frequencies are mostly in the uhf range of 433 mhz or 20 – 41 mhz.a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper.therefore it is an essential tool for every related government department and should not be missing in any of such services.power amplifier and antenna connectors,the next code is never directly repeated by the transmitter in order to complicate replay attacks.

Power grid control through pc scada,this project uses a pir sensor and an ldr for efficient use of the lighting system,3 w output powergsm 935 – 960 mhz.impediment of undetected or unauthorised information exchanges,such as propaganda broadcasts,wireless mobile battery charger circuit,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure,the circuit shown here gives an early warning if the brake of the vehicle fails,three circuits were shown here.1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications,please visit the highlighted article.placed in front of the jammer for better exposure to noise.outputs obtained are speed and electromagnetic torque.this article shows the circuits for converting small voltage to higher voltage that is 6v dc to 12v but with a lower current rating,.