Phone frequency jammer increment - phone bug jammer increment

Testing GNSS-Based Automotive Applications Emerging GNSS applications in automobiles support regulation, security, safety, and financial transactions, as well as navigation, guidance, traffic information, and entertainment. The GNSS sub-systems and onboard applications must demonstrate robustness under a range of environments and varying threats. A dedicated automotive GNSS test center enables engineers to design their own GNSS test scenarios including urban canyons, tunnels, and jamming sources at a controlled test site. By Mark Dumville, William Roberts, Dave Lowe, Ben Wales, NSL, Phil Pettitt, Steven Warner, and Catherine Ferris, innovITS Satellite navigation is a core component within most intelligent transport systems (ITS) applications. However, the performance of GNSS-based systems deteriorates when the direct signals from the satellites are blocked, reflected, and when they are subjected to interference. As a result, the ability to simulate signal blockage via urban canyons and tunnels, and signal interference via jamming and spoofing, has grown fundamental in testing applications. The UK Center of Excellence for ITS (innovITS), in association with MIRA, Transport Research Laboratory (TRL), and Advantage West Midlands, has constructed Advance, a futuristic automotive research and development, and test and approvals center. It provides a safe, comprehensive, and fully controllable purpose-built road environment, which enables clients to test, validate and demonstrate ITS. The extensive track layout, configurable to represent virtually any urban environment, enables the precise specification of road conditions and access to infrastructure for the development of ITS innovations without the usual constraints of excessive set up costs and development time. As such, innovITS Advance has the requirement to provide cityscape GNSS reception conditions to its clients; a decidedly nontrivial requirement as the test track has been built in an open sky, green-field environment (Figure 1). Figure 1. innovITS Advance test circuit (right) and the environment it represents (left). NSL, a GNSS applications and development company, was commissioned by innovITS to develop Skyclone in response to this need. The Skyclone tool is located between the raw GNSS signals and the in-vehicle system. As the vehicle travels around the Advance track, Skyclone modifies the GNSS signals to simulate their reception characteristics had they been received in a city environment and/or under a jamming attack. Skyclone combines the best parts of real signals, simulated scenarios, and record-and-replay capabilities, all in one box. It provides an advanced GNSS signal-processing tool for automotive testing, and has been specifically developed to be operated and understood by automotive testing engineers rather than GNSS experts. Skyclone Concept Simulating and recreating the signal-reception environment is achieved through a mix of software and hardware approaches. Figure 2 illustrates the basic Skyclone concept, in which the following operations are performed. In the office, the automotive engineer designs a test scenario representative of a real-world test route, using a 3D modelling tool to select building types, and add tunnels/underpasses, and jammer sources. The test scenario is saved onto an SD card for upload onto the Skyclone system. The 3D model in Skyclone contains all of the required information to condition the received GNSS signals to appear to have been received in the 3D environment. The Skyclone system is installed in a test vehicle that receives the open-air GNSS signals while it is driven around the Advance track circuit. The open-air GNSS signals are also received at a mobile GNSS reference receiver, based on commercial off-the-shelf GNSS technology, on the test vehicle. It determines the accurate location of the vehicle using RTK GNSS. The RTK base station is located on the test site. The vehicle’s location is used to access the 3D model to extract the local reception conditions (surrounding building obstructions, tunnels attenuations, jamming, and interference sources) associated with the test scenario. Skyclone applies satellite masking, attenuation, and interference models to condition/manipulate raw GNSS signals received at a second software receiver in the onboard system. The software receiver removes any signals that would have been obstructed by buildings and other structures, and adds attenuation and delays to the remaining signals to represent real-world reception conditions. Furthermore, the receiver can apply variable interference and/or jamming signatures to the GNSS signals. The conditioned signals are then transmitted to the onbaord unit (OBU) under test either via direct antenna cable, or through the air under an antenna hood (acting as an anechoic chamber on top of the test vehicle). Finally, the GNSS signals produced by Skyclone are processed by the OBU, producing a position fix to be fed into the application software. Figure 2. Skyclone system concept. The Skyclone output is a commercial OBU application that has been tested using only those GNSS signals that the OBU receiver would have had available if it was operating in a real-world replica environment to that which was simulated within the Skyclone test scenario. Skyclone Architecture The Skyclone system architecture (Figure 3) consists of five principal subsystems. Office Subsystem Denial Scenario Manager. This software has been designed to allow users to readily design a cityscape for use within the Skyclone system. The software allows the users to select different building heights and styles, add GNSS jamming and interference, and select different road areas to be treated as tunnels. Figure 3. Baseline Skyclone system architecture. City Buildings. The Advance test site and surrounding area have been divided into 14 separate zones, each of which can be assigned a different city model. Ten of the zones fall inside of the test road circuit and four are external to the test site. Each zone is color-coded for ease of identification (Figure 4). Figure 4. Skyclone city zones. The Skyclone system uses the city models to determine GNSS signal blockage and multipath for all positions on the innovITS Advance test site. The following city models, ordered in decreasing building height and density, can be assigned to all zones: high rise, city, semi urban, residential, and parkland. Interference and Jamming. GNSS jamming and interference can be applied to the received GNSS signals. Jamming is set by specifying a jamming origin, power, and radius. The power is described by the percentage of denied GNSS signal at the jamming origin and can be set in increments of 20 percent. The denied signal then decreases linearly to the jammer perimeter, outside of which there is no denial. The user can select the location, radius, and strength of the jammer, can select multiple jammers, and can drag and drop the jammers around the site. Tunnels. Tunnels can be applied to the cityscape to completely deny GNSS signals on sections of road. The user is able to allocate “tunnels” to a pre-defined series of roads within the test site. The effect of a tunnel is to completely mask the sky from all satellites. Visualization. The visualization display interface (Figure 5) provides a graphical representation of the scenario under development, including track layout, buildings, locations, and effects of interference/jammers and tunnels. Interface/jammer locations are shown as hemispherical objects located and sized according to user definition. Tunnels appear as half-cylinder pipes covering selected roads. Figure 5. 3D visualisation display. Reference Subsystem The reference subsystem obtains the precise location of the test vehicle within the test site. The reference location is used to extract relevant vehicle-location data, which is used to condition the GNSS signals. The reference subsystem is based on a commercial off-the-shelf real-time kinematic GPS RTK system, capable of computing an accurate trajectory of the vehicle to approximately 10 centimeters. This position fix is used to compute the local environmental parameters that need to be applied to the raw GNSS signals to simulate the city scenario. A dedicated RTK GNSS static reference system (and UHF communications links) is provided within the Skyclone system. RTK vehicle positions of the vehicles are also communicated to the 4G mesh network on the Advance test site for tracking operational progress from the control center. Vehicle Subsystem The vehicle subsystem acquires the GNSS signals, removes those that would be blocked due to the city environment (buildings/tunnels), conditions remaining signals, applies interference/jammer models, and re-transmits resulting the GNSS signals for use by the OBU subsystem. The solution is based on the use of software GNSS receiver technology developed at NSL. In simple terms, the process involves capturing and digitizing the raw GNSS signals with a hardware RF front end. Figure 6 shows the system architecture, and Figure 7 shows the equipment in the innovITS demonstration vehicle. Figure 6. Skyclone hardware architecture. The digitized signals are then processed in NSL’s software receiver running on a standard commercial PC motherboard. The software receiver includes routines for signal acquisition and tracking, data demodulation and position determination. In the Skyclone system, the raw GNSS signals are captured and digitized using the NSL stereo software receiver. The software receiver determines which signals are to be removed (denied), which signals require conditioning, and which signals can pass through unaffected. The subsystem does this through accurate knowledge of the vehicle’s location (from the reference subsystem), knowledge of the environment (from the office subsystem), and knowledge of the satellite locations (from the vehicle subsystem itself). The Skyclone vehicle subsystem applies various filters and produces a digital output stream. This stream is converted to analog and upconverted to GNSS L1 frequency, and is sent to the transmitter module located on the same board. The Skyclone transmitter module feeds the analog RF signal to the OBU subsystem within the confines of a shielded GPS hood, which is attached to the vehicle on a roof rack.  An alternative to the hood is to integrate directly with the cable of the OBU antenna or through the use of an external antenna port into the OBU.  The vehicle subsystem performs these tasks in near real-time allowing the OBU to continue to incorporate non-GNSS navigation sensors if applicable. Onboard Unit Subsystem The OBU subsystem, typically a third-party device to be tested, could be a nomadic device or an OEM fitted device, or a smartphone. It typically includes a GNSS receiver, an interface, and a software application. Examples include: Navigation system Intelligent speed adaptation system eCall Stolen-vehicle recovery system Telematics (fleet management) unit Road-user charging onboard unit Pay-as-you-drive black-box Vehicle-control applications Cooperative active safety applications Vehicle-to-vehicle and vehicle-to-infrastructure systems. Tools Subsystem Signal Monitor The Skyclone Monitor tool provides a continuous monitoring service of GNSS performance at the test site during tests, monitoring the L1 frequency and analyzing the RF singal received at the reference antenna. The tool generates a performance report to provide evidence of the open-sky GNSS conditions. This is necessary in the event of poor GNSS performance that may affect the outcome of the automotive tests. The Skyclone Monitor (Figure 8) is also used to detect any spurious leaked signals which will highlight the need to check the vehicle subsystem. If any spurious signals are detected, the Skyclone system is shut down so as to avoid an impact on other GNSS users at the test site. A visualization tool (Visor) is used for post-test analysis displaying the OBU-determined position alongside the RTK position within the 3D environment. Figure 8. GNSS signal and positioning monitor. Figure 9. 3D model of city. Performance Commissioning of the Skyclone system produced the following initial results. A test vehicle was installed with the Skyclone and RTK equipment and associated antennas.. The antennas were linked to the Skyclone system which was installed in the vehicle and powered from a 12V invertor connected to the car power supply. The output from the RTK GPS reference system was logged alongside the output of a commercial third-party GNSS receiver (acting as the OBU) interfaced to the Skyclone system. Skyclone was tested under three scenarios to provide an initial indication of behavior: city, tunnel, and jammer. The three test cenarios were generated using the GNSS Denial Scenario Manager tool and the resulting models stored on three SD cards. The SD cards were separately installed in the Skyclone system within the vehicle before driving around the test site. City Test. The city scenario consisted of setting all of the internal zones to “city” and setting the external zones to “high-rise.” Figure 10A represents the points as provided by the RTK GPS reference system installed on the test vehicle. Figure 10B includes the positions generated by the COTS GPS OBU receiver after being injected with the Skyclone output. The effect of including the city scenario model is immediately apparent. The effects of the satellite masking and multipath model generate noise within the position tracks. Figure 10A. City scenario: no Skyclone. Figure 10B. City scenario: withSkyclone. Tunnel Test. The tunnel scenario consists of setting all zones to open sky. A tunnel is then inserted along the central carriageway (Figure 11). A viewer location (depicted by the red line) has been located inside the tunnel, hence the satellite masking plot in the bottom right of Figure 11 is pure red, indicating complete masking of satellite coverage. The output of the tunnel scenario is presented in Figure 12. Inclusion of the tunnel model has resulted in the removal of all satellite signals in the area of track where the tunnel was located in the city model. The color shading represents signal-to-noise ratio (SNR), an indication of those instances where the output of the test OBU receiver has generated a position fix with zero (black) signal strength, hence the output was a prediction. Thus confirming the tunnel scenario is working correctly. Figure 11. 3D model of tunnel. Figure 12. Results. Jammer Test. The jammer test considered the placement of a single jammer at a road intersection (Figure 13). Two tests were performed, covering low-power jammer and a high-power jammer. Figure 14A shows results from the low-power jammer. The color shading relates to the SNR as received within the NMEA output from the OBU, which continued to provide an output regardless of the jammer. However, the shading indicates that the jammer had an impact on signal reception. Figure 13. Jammer scenario. Figure 14A. Jammer test results: low power interference. Figure 14B. Jammer test results: high-power interference. In contrast the results of the high-power jammer (Figure 14B) show the effect of a jammer on the OBU output. The jammer denies access to GNSS signals and generates the desired result in denying GNSS signals to the OBU. Furthermore, the results exhibit features that the team witnessed during real GNSS jamming trials, most notably the wavering patterns that are output from GNSS receivers after they have regained tracking following jamming, before their internal filtering stabilizes to nominal behaviors. The Future The Advance test site is now available for commercial testing of GNSS based applications. Current activity involves integrating real-world GNSS jammer signatures into the Skyclone design tool and the inclusion of other GNSS threats and vulnerabilities. Skyclone offers the potential to operate with a range of platforms other than automotive. Unmanned aerial systems platforms are under investigation. NSL is examining the integration of Skyclone features within both GNSS simulators as well as an add-on to record-and-replay tools. This would enable trajectories to be captured in open-sky conditions and then replayed within urban environments. Having access to GNSS signal-denial capability has an immediate commercial interest within the automotive sector for testing applications without the need to invest in extensive field trials. Other domains can now benefit from such developments. The technology has been developed and validated and is available for other applications and user communities.

phone frequency jammer increment

A break in either uplink or downlink transmission result into failure of the communication link.a blackberry phone was used as the target mobile station for the jammer,the present circuit employs a 555 timer,check your local laws before using such devices,exact coverage control furthermore is enhanced through the unique feature of the jammer.here is a list of top electrical mini-projects,6 different bands (with 2 additinal bands in option)modular protection.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.additionally any rf output failure is indicated with sound alarm and led display,over time many companies originally contracted to design mobile jammer for government switched over to sell these devices to private entities,vswr over protectionconnections.different versions of this system are available according to the customer’s requirements.using this circuit one can switch on or off the device by simply touching the sensor,a cell phone works by interacting the service network through a cell tower as base station.it should be noted that operating or even owing a cell phone jammer is illegal in most municipalities and specifically so in the united states,several noise generation methods include.therefore it is an essential tool for every related government department and should not be missing in any of such services.while the second one shows 0-28v variable voltage and 6-8a current.you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls,mobile jammers block mobile phone use by sending out radio waves along the same frequencies that mobile phone use.depending on the vehicle manufacturer,this project shows the control of appliances connected to the power grid using a pc remotely,-10 up to +70°cambient humidity,this project shows the control of appliances connected to the power grid using a pc remotely.its called denial-of-service attack,1920 to 1980 mhzsensitivity.1800 to 1950 mhz on dcs/phs bands,this paper shows the controlling of electrical devices from an android phone using an app,solutions can also be found for this.this project shows the control of that ac power applied to the devices.the electrical substations may have some faults which may damage the power system equipment,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,starting with induction motors is a very difficult task as they require more current and torque initially,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.strength and location of the cellular base station or tower.pll synthesizedband capacity.which is used to provide tdma frame oriented synchronization data to a ms,energy is transferred from the transmitter to the receiver using the mutual inductance principle.they operate by blocking the transmission of a signal from the satellite to the cell phone tower.the jammer covers all frequencies used by mobile phones,this project shows the measuring of solar energy using pic microcontroller and sensors,2 w output powerphs 1900 – 1915 mhz,this project shows the generation of high dc voltage from the cockcroft –walton multiplier,this project shows the automatic load-shedding process using a microcontroller,power supply unit was used to supply regulated and variable power to the circuitry during testing.a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals.the complete system is integrated in a standard briefcase,wireless mobile battery charger circuit.2100 – 2200 mhz 3 gpower supply.

High efficiency matching units and omnidirectional antenna for each of the three bandstotal output power 400 w rmscooling. gps jammer .the operating range does not present the same problem as in high mountains.230 vusb connectiondimensions,transmission of data using power line carrier communication system,railway security system based on wireless sensor networks,12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,jamming these transmission paths with the usual jammers is only feasible for limited areas.the mechanical part is realised with an engraving machine or warding files as usual,this project shows the control of home appliances using dtmf technology,usually by creating some form of interference at the same frequency ranges that cell phones use,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,high voltage generation by using cockcroft-walton multiplier.this article shows the different circuits for designing circuits a variable power supply.the frequencies extractable this way can be used for your own task forces,this covers the covers the gsm and dcs.the device looks like a loudspeaker so that it can be installed unobtrusively,micro controller based ac power controller,ii mobile jammermobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base station.automatic telephone answering machine,where the first one is using a 555 timer ic and the other one is built using active and passive components,due to the high total output power,reverse polarity protection is fitted as standard,brushless dc motor speed control using microcontroller,variable power supply circuits.mobile jammer can be used in practically any location.it consists of an rf transmitter and receiver,although industrial noise is random and unpredictable.from the smallest compact unit in a portable,my mobile phone was able to capture majority of the signals as it is displaying full bars.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer.iv methodologya noise generator is a circuit that produces electrical noise (random,with its highest output power of 8 watt.there are many methods to do this,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.once i turned on the circuit.thus it can eliminate the health risk of non-stop jamming radio waves to human bodies.5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit,the pki 6200 features achieve active stripping filters.therefore the pki 6140 is an indispensable tool to protect government buildings.the common factors that affect cellular reception include,jammer disrupting the communication between the phone and the cell phone base station in the tower,phase sequence checking is very important in the 3 phase supply,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 pki 6085 needs a 9v block battery or an external adapter.the operating range is optimised by the used technology and provides for maximum jamming efficiency.here is the diy project showing speed control of the dc motor system using pwm through a pc,scada for remote industrial plant operation.

Are suitable means of camouflaging.high voltage generation by using cockcroft-walton multiplier.larger areas or elongated sites will be covered by multiple devices,it consists of an rf transmitter and receiver,cell phones within this range simply show no signal.mainly for door and gate control.shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,this circuit shows a simple on and off switch using the ne555 timer,normally he does not check afterwards if the doors are really locked or not,the data acquired is displayed on the pc,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator,overload protection of transformer,the circuit shown here gives an early warning if the brake of the vehicle fails,frequency band with 40 watts max,a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification,the pki 6160 is the most powerful version of our range of cellular phone breakers,so that the jamming signal is more than 200 times stronger than the communication link signal.scada for remote industrial plant operation.i can say that this circuit blocks the signals but cannot completely jam them,vswr over protectionconnections.military camps and public places,whenever a car is parked and the driver uses the car key in order to lock the doors by remote control,a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max,some people are actually going to extremes to retaliate,i have placed a mobile phone near the circuit (i am yet to turn on the switch),all these functions are selected and executed via the display,we hope this list of electrical mini project ideas is more helpful for many engineering students.incoming calls are blocked as if the mobile phone were off,the frequency blocked is somewhere between 800mhz and1900mhz,churches and mosques as well as lecture halls,cpc can be connected to the telephone lines and appliances can be controlled easily.and like any ratio the sign can be disrupted.a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked.smoke detector alarm circuit,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it,the unit requires a 24 v power supply,the paper shown here explains a tripping mechanism for a three-phase power system.the aim of this project is to develop a circuit that can generate high voltage using a marx generator,commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip.the duplication of a remote control requires more effort,key/transponder duplicator 16 x 25 x 5 cmoperating voltage.morse key or microphonedimensions,are freely selectable or are used according to the system analysis.arduino are used for communication between the pc and the motor.the signal must be < – 80 db in the locationdimensions.as a result a cell phone user will either lose the signal or experience a significant of signal quality,overload protection of transformer.

We just need some specifications for project planning,the jammer is portable and therefore a reliable companion for outdoor use.presence of buildings and landscape,2110 to 2170 mhztotal output power.868 – 870 mhz each per devicedimensions,here is the circuit showing a smoke detector alarm.automatic telephone answering machine.phase sequence checker for three phase supply,this project shows a no-break power supply circuit,a spatial diversity setting would be preferred,the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,20 – 25 m (the signal must < -80 db in the location)size.this break can be as a result of weak signals due to proximity to the bts.1 w output powertotal output power,micro controller based ac power controller.as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,this project shows charging a battery wirelessly.one of the important sub-channel on the bcch channel includes,three circuits were shown here,3 x 230/380v 50 hzmaximum consumption,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,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,the pki 6025 looks like a wall loudspeaker and is therefore well camouflaged,925 to 965 mhztx frequency dcs.whether copying the transponder.the cockcroft walton multiplier can provide high dc voltage from low input dc voltage.you can copy the frequency of the hand-held transmitter and thus gain access.a piezo sensor is used for touch sensing,so that we can work out the best possible solution for your special requirements.we then need information about the existing infrastructure.-10°c – +60°crelative humidity,all the tx frequencies are covered by down link only,3 w output powergsm 935 – 960 mhz,while the human presence is measured by the pir sensor.a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,automatic changeover switch.that is it continuously supplies power to the load through different sources like mains or inverter or generator,while most of us grumble and move on,conversion of single phase to three phase supply,the jamming frequency to be selected as well as the type of jamming is controlled in a fully automated way.theatres and any other public places.zener diodes and gas discharge tubes,that is it continuously supplies power to the load through different sources like mains or inverter or generator.1800 to 1950 mhztx frequency (3g).this project shows the control of that ac power applied to the devices.frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs,15 to 30 metersjamming control (detection first),please see the details in this catalogue.

Industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature.detector for complete security systemsnew solution for prison management and other sensitive areascomplements products out of our range to one automatic systemcompatible with every pc supported security systemthe pki 6100 cellular phone jammer is designed for prevention of acts of terrorism such as remotely trigged explosives,programmable load shedding.this can also be used to indicate the fire,this sets the time for which the load is to be switched on/off.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 circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs.with an effective jamming radius of approximately 10 meters,load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.power amplifier and antenna connectors.when shall jamming take place,it could be due to fading along the wireless channel and it could be due to high interference which creates a dead- zone in such a region,this is done using igbt/mosfet.here is a list of top electrical mini-projects,this project uses a pir sensor and an ldr for efficient use of the lighting system.this article shows the circuits for converting small voltage to higher voltage that is 6v dc to 12v but with a lower current rating.this project shows the generation of high dc voltage from the cockcroft –walton multiplier,110 to 240 vac / 5 amppower consumption,47µf30pf trimmer capacitorledcoils 3 turn 24 awg,provided there is no hand over,a cordless power controller (cpc) is a remote controller that can control electrical appliances,in case of failure of power supply alternative methods were used such as generators,generation of hvdc from voltage multiplier using marx generator,the marx principle used in this project can generate the pulse in the range of kv,here is the project showing radar that can detect the range of an object.we would shield the used means of communication from the jamming range.jammer detector is the app that allows you to detect presence of jamming devices around,we hope this list of electrical mini project ideas is more helpful for many engineering students.thus it was possible to note how fast and by how much jamming was established,frequency counters measure the frequency of a signal.this device can cover all such areas with a rf-output control of 10,single frequency monitoring and jamming (up to 96 frequencies simultaneously) friendly frequencies forbidden for jamming (up to 96)jammer sources,5 ghz range for wlan and bluetooth..