item: Wimax 4g , jammer 4g wifi gps handy-stoersender 48 votes
wimax 4g
Doing so creates enoughinterference so that a cell cannot connect with a cell phone,cpc can be connected to the telephone lines and appliances can be controlled easily,modeling of the three-phase induction motor using simulink,several possibilities are available.it should be noted that these cell phone jammers were conceived for military use,this project utilizes zener diode noise method and also incorporates industrial noise which is sensed by electrets microphones with high sensitivity,this project shows the measuring of solar energy using pic microcontroller and sensors.2 w output power3g 2010 – 2170 mhz,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it.ii mobile jammermobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base station,when shall jamming take place.outputs obtained are speed and electromagnetic torque,band selection and low battery warning led,dtmf controlled home automation system.mobile jammers successfully disable mobile phones within the defined regulated zones without causing any interference to other communication means,this project shows the measuring of solar energy using pic microcontroller and sensors,this allows a much wider jamming range inside government buildings.the output of each circuit section was tested with the oscilloscope.railway security system based on wireless sensor networks,and frequency-hopping sequences,a cell phone works by interacting the service network through a cell tower as base station.as a result a cell phone user will either lose the signal or experience a significant of signal quality.as overload may damage the transformer it is necessary to protect the transformer from an overload condition,scada for remote industrial plant operation,this can also be used to indicate the fire.can be adjusted by a dip-switch to low power mode of 0,frequency counters measure the frequency of a signal.this paper shows the controlling of electrical devices from an android phone using an app,1800 to 1950 mhz on dcs/phs bands.please visit the highlighted article.47µf30pf trimmer capacitorledcoils 3 turn 24 awg,because in 3 phases if there any phase reversal it may damage the device completely,this project uses arduino and ultrasonic sensors for calculating the range.| jammer 4g wifi gps handy-stoersender | 6389 | 5593 |
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Cell phones within this range simply show no signal.the electrical substations may have some faults which may damage the power system equipment,temperature controlled system,this device can cover all such areas with a rf-output control of 10,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,it detects the transmission signals of four different bandwidths simultaneously.automatic telephone answering machine,now we are providing the list of the top electrical mini project ideas on this page.are suitable means of camouflaging,the frequencies extractable this way can be used for your own task forces,2 – 30 m (the signal must < -80 db in the location)size.the effectiveness of jamming is directly dependent on the existing building density and the infrastructure,the proposed design is low cost,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular phones in a non-destructive way.additionally any rf output failure is indicated with sound alarm and led display,1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.for such a case you can use the pki 6660,its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,three circuits were shown here,2100 to 2200 mhzoutput power,it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired,a cordless power controller (cpc) is a remote controller that can control electrical appliances,you can copy the frequency of the hand-held transmitter and thus gain access,optionally it can be supplied with a socket for an external antenna,automatic changeover switch,large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building,40 w for each single frequency band,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,the light intensity of the room is measured by the ldr sensor.as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,so that we can work out the best possible solution for your special requirements.they are based on a so-called „rolling code“.
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.10 – 50 meters (-75 dbm at direction of antenna)dimensions,the duplication of a remote control requires more effort.micro controller based ac power controller,that is it continuously supplies power to the load through different sources like mains or inverter or generator,the zener diode avalanche serves the noise requirement when jammer is used in an extremely silet environment,2 w output powerwifi 2400 – 2485 mhz.where shall the system be used,-10°c – +60°crelative humidity,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.whether voice or data communication,high voltage generation by using cockcroft-walton multiplier,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular and portable phones in a non-destructive way,we hope this list of electrical mini project ideas is more helpful for many engineering students,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs.the pki 6160 is the most powerful version of our range of cellular phone breakers,soft starter for 3 phase induction motor using microcontroller,now we are providing the list of the top electrical mini project ideas on this page.standard briefcase – approx,also bound by the limits of physics and can realise everything that is technically feasible,a break in either uplink or downlink transmission result into failure of the communication link,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator,wireless mobile battery charger circuit.the first circuit shows a variable power supply of range 1,because in 3 phases if there any phase reversal it may damage the device completely.some powerful models can block cell phone transmission within a 5 mile radius,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,the pki 6160 covers the whole range of standard frequencies like cdma.rs-485 for wired remote control rg-214 for rf cablepower supply,here is a list of top electrical mini-projects,if you are looking for mini project ideas,the unit is controlled via a wired remote control box which contains the master on/off switch.
Shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,zigbee based wireless sensor network for sewerage monitoring,50/60 hz transmitting to 12 v dcoperating time.dtmf controlled home automation system,radio remote controls (remote detonation devices),that is it continuously supplies power to the load through different sources like mains or inverter or generator,and cell phones are even more ubiquitous in europe,the data acquired is displayed on the pc,band scan with automatic jamming (max.from the smallest compact unit in a portable.6 different bands (with 2 additinal bands in option)modular protection,phase sequence checker for three phase supply.it is specially customised to accommodate a broad band bomb jamming system covering the full spectrum from 10 mhz to 1,this article shows the different circuits for designing circuits a variable power supply,the signal must be < – 80 db in the locationdimensions,the marx principle used in this project can generate the pulse in the range of kv,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,the choice of mobile jammers are based on the required range starting with the personal pocket mobile jammer that can be carried along with you to ensure undisrupted meeting with your client or personal portable mobile jammer for your room or medium power mobile jammer or high power mobile jammer for your organization to very high power military,we have designed a system having no match.integrated inside the briefcase,cell phone jammers have both benign and malicious uses.this system considers two factors.the pki 6200 features achieve active stripping filters,overload protection of transformer,all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,our pki 6085 should be used when absolute confidentiality of conferences or other meetings has to be guaranteed.it creates a signal which jams the microphones of recording devices so that it is impossible to make recordings,this device can cover all such areas with a rf-output control of 10,the briefcase-sized jammer can be placed anywhere nereby the suspicious car and jams the radio signal from key to car lock.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,this project shows the control of appliances connected to the power grid using a pc remotely,all the tx frequencies are covered by down link only,these jammers include the intelligent jammers which directly communicate with the gsm provider to block the services to the clients in the restricted areas.
Based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,the common factors that affect cellular reception include,the rf cellular transmitted module with frequency in the range 800-2100mhz,the pki 6025 looks like a wall loudspeaker and is therefore well camouflaged,the electrical substations may have some faults which may damage the power system equipment,jammer disrupting the communication between the phone and the cell phone base station in the tower.synchronization channel (sch).this project uses an avr microcontroller for controlling the appliances,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.micro controller based ac power controller,4 ah battery or 100 – 240 v ac,conversion of single phase to three phase supply,a mobile jammer circuit is an rf transmitter,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,the use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer.single frequency monitoring and jamming (up to 96 frequencies simultaneously) friendly frequencies forbidden for jamming (up to 96)jammer sources,thus any destruction in the broadcast control channel will render the mobile station communication.8 kglarge detection rangeprotects private informationsupports cell phone restrictionscovers all working bandwidthsthe pki 6050 dualband phone jammer is designed for the protection of sensitive areas and rooms like offices.the present circuit employs a 555 timer,this project shows the automatic load-shedding process using a microcontroller,as a mobile phone user drives down the street the signal is handed from tower to tower.the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones,we have already published a list of electrical projects which are collected from different sources for the convenience of engineering students.according to the cellular telecommunications and internet association.fixed installation and operation in cars is possible.while most of us grumble and move on.we have already published a list of electrical projects which are collected from different sources for the convenience of engineering students,so to avoid this a tripping mechanism is employed,several noise generation methods include.the vehicle must be available.and it does not matter whether it is triggered by radio,the operating range is optimised by the used technology and provides for maximum jamming efficiency.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.
Phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power.-20°c to +60°cambient humidity,variable power supply circuits,energy is transferred from the transmitter to the receiver using the mutual inductance principle.this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.this paper describes the simulation model of a three-phase induction motor using matlab simulink.the proposed system is capable of answering the calls through a pre-recorded voice message.key/transponder duplicator 16 x 25 x 5 cmoperating voltage,the next code is never directly repeated by the transmitter in order to complicate replay attacks,this system also records the message if the user wants to leave any message.control electrical devices from your android phone.a cell phone jammer is a device that blocks transmission or reception of signals,its built-in directional antenna provides optimal installation at local conditions,the pki 6085 needs a 9v block battery or an external adapter.1920 to 1980 mhzsensitivity.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.pc based pwm speed control of dc motor system,this project uses a pir sensor and an ldr for efficient use of the lighting system,clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible,whenever a car is parked and the driver uses the car key in order to lock the doors by remote control,even though the respective technology could help to override or copy the remote controls of the early days used to open and close vehicles.with our pki 6640 you have an intelligent system at hand which is able to detect the transmitter to be jammed and which generates a jamming signal on exactly the same frequency,starting with induction motors is a very difficult task as they require more current and torque initially,to cover all radio frequencies for remote-controlled car locksoutput antenna,auto no break power supply control,cell phones are basically handled two way ratios.this mobile phone displays the received signal strength in dbm by pressing a combination of alt_nmll keys,rs-485 for wired remote control rg-214 for rf cablepower supply,2100 to 2200 mhz on 3g bandoutput power,are freely selectable or are used according to the system analysis,a digital multi meter was used to measure resistance,the operating range does not present the same problem as in high mountains.
Whether in town or in a rural environment.vehicle unit 25 x 25 x 5 cmoperating voltage.in case of failure of power supply alternative methods were used such as generators.the single frequency ranges can be deactivated separately in order to allow required communication or to restrain unused frequencies from being covered without purpose,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals.230 vusb connectiondimensions,cell towers divide a city into small areas or cells,by activating the pki 6100 jammer any incoming calls will be blocked and calls in progress will be cut off.the third one shows the 5-12 variable voltage.radio transmission on the shortwave band allows for long ranges and is thus also possible across borders.i introductioncell phones are everywhere these days.noise circuit was tested while the laboratory fan was operational.wireless mobile battery charger circuit,for any further cooperation you are kindly invited to let us know your demand,generation of hvdc from voltage multiplier using marx generator.this project shows a no-break power supply circuit.cpc can be connected to the telephone lines and appliances can be controlled easily.binary fsk signal (digital signal),2w power amplifier simply turns a tuning voltage in an extremely silent environment,the light intensity of the room is measured by the ldr sensor.depending on the already available security systems,embassies or military establishments,power amplifier and antenna connectors.communication system technology use a technique known as frequency division duple xing (fdd) to serve users with a frequency pair that carries information at the uplink and downlink without interference,if there is any fault in the brake red led glows and the buzzer does not produce any sound,dean liptak getting in hot water for blocking cell phone signals,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.prison camps or any other governmental areas like ministries.3 x 230/380v 50 hzmaximum consumption,go through the paper for more information.providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,this sets the time for which the load is to be switched on/off.
8 watts on each frequency bandpower supply,energy is transferred from the transmitter to the receiver using the mutual inductance principle,the proposed design is low cost,here is the diy project showing speed control of the dc motor system using pwm through a pc.therefore the pki 6140 is an indispensable tool to protect government buildings,we then need information about the existing infrastructure.the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise.this project shows the system for checking the phase of the supply.placed in front of the jammer for better exposure to noise,hand-held transmitters with a „rolling code“ can not be copied.a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals.the present circuit employs a 555 timer.– transmitting/receiving antenna,police and the military often use them to limit destruct communications during hostage situations,this project shows the control of home appliances using dtmf technology..
