Make phone jammer diy , phone jammer make rice

Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both systems and suddenly, unexpectedly place receiver manufacturers in a highly uncertain and unfavorable situation. Some of the patents have been granted in the U.K. and in Europe, and applications are pending in U.S. patent court, with a ruling expected at any time. Companies in the United States and outside the country are being approached and asked to pay royalties, on the basis of the patent filings, for use of the European E1 Open Service signal and the modernized GPS L1C signal. Should such initiatives prevail, costs would presumably be passed along to end users of GPS and Galileo — the same taxpayers who have already paid once for the systems. The purveyor of the royalty solicitations is Jim Ashe, vice president for sales and intellectual property at Ploughshare Innovations Ltd., Hampshire, UK. The patents, if successfully used to collect fees from satellite manufacturers or receiver manufacturers, would have a chilling effect on the use of the new interoperable signals that all parties have labored so hard, for so long, to design. They could quite possibly lead to a return to a BOC(1,1) structure for these signals, losing the benefits of MBOC. “There’s quite an argument going on,” said one person familiar with the controversy. “Some of the methods of arguing have not been too kind.” The Background. A great deal of work was accomplished cooperatively between the United States and the European Union (EU) to develop the landmark 2004 signal agreement that emerged from the Galileo Signal Task Force, formalizing cooperation on satellite navigation between the United States and more than two dozen European countries, including the U.K. Part of that agreement concerned a common signal structure (spectrum) for the civilian signals for both the E1 Open Service (OS) signal — the Galileo equivalent of GPS L1 — and the new U.S. GPS L1C signal to be implemented on the GPS III satellites, coming as early as 2015. The EU said during that process, in effect, “Even though we have agreed on this, Europe wants to be able to optimize the E1 OS signal beyond the agreement on that civilian signal being a binary offset carrier BOC(1,1) signal.” Both international entities had agreed that would be the waveform or the spectrum of the new signal. The Europeans began to evaluate methods of optimizing their signal. They had some designs called composite binary coded symbols (CBCS), a mechanism of putting a higher frequency componenent into the signal structure, and also a version called CBCS*, meaning that they found there was a bias generated by that extra signal, and so they had to invert every other one of its repetitions. The signal structure that they were playing with was centered on a plus and a minus 5-MHz component. (Actually five times 1.023, because of the inherent clock of GPS, you can think of it as 1.023 MHz. Everyone in doing compatible or interoperable signals agreed upon that; when reference is made to 5 or 10 MHz, or an even 5 or an even 10, it means that number multiplied by 1.023). The Europeans were were putting an additional BOC signal on top of the BOC 1,1, and it would have plus or minus 5 MHz as the centers of those two BOC peaks, and then some kind of waveform to modulate that. The United States pushed back against that to some degree, and proposed adoption of the so-called MBOC waveform, in which case the U.S. signal was equally optimized with a concept called time-multiplexed BOC (TMBOC). The Europeans used the CBOC approach. So, very different ways of doing this. In the European way, they transmitted a continuous but very low-power BOC(6,1) term. The U.S approach transmits four BOC(6,1) chips out of every 33 chips of code (see “Future Wave” sidebar). A chip in this case means a part of the spreading code, so each signal has its spreading codes, just like the C/A code is a spreading code, meaning a pseudorandom code modulating the carrier. L1C and E1 OS have a pseudorandom spreading code. The U.S. approach does not put BOC(6,1) components onto the data; that’s what is commonly called MBOC. The U.S. approach is TMBOC, on the pilot carrier only, not on the data component. The European system is like two separate signals, the BOC(1,1) signal having both pilot and data, and a BOC(6,1) signal having both pilot and data. They’ve put the (6,1) into both data and pilot components. Cue the Antagonists. Part of the task force from Europe and the United States considering the future signals’ make-up were Tony Pratt and John Owen, who works for the U.K. Ministry of Defense and whose office sponsored Pratt’s work. The two participated heavily in all these signal discussions. They stated in early meetings they planned to file patents in some areas. “Frankly,” states one source, “people should have paid more attention when they said that, and asked ‘What do you mean, and how’s it going to work, etcetera?’ And secondly, there probably should have been a written agreement between parties that nobody will take advantage or patent any of these ideas that we are developing.” Pratt and Owen filed a number of patents domestically, in the U.K., and and in the European Union, in 2003 and in 2006, and in other places around the world, such as Japan, Canada, and in the United States as well. Some of the U.K. and European patents have been granted. The first of some of those U.S. patents may be issued in the near future. The original patent filings were later amended to include new claims. The new claims were much more specifically oriented toward TMBOC and CBOC, whereas the original claims were more generally oriented toward modulated methods. The claims have been modified over the years; this is fairly standard patent practice. As a result, the original 2003 patent doesn’t necessarily read on a particular signal, but its early filing date has precedence. The claims have been updated and modified, and if the patent office issues those, as a true patent, then the new claims apply. Plenty of big patent battles have been fought over just such issues. Once the patent is issued, a satellite or receiver  manufacturer must assume that it is valid, and has only two responses to make, other than acquiescing to royalty claims. The manufacturer can either say, if building a product, “No, my product does not infringe, and I will prove that it doesn’t.’” The other choice for manufacturers is to go back into the patent office and sue the patent filer (and grantee) in the patent courts and prove that the patent was invalid in the first place that the patentee should not have been granted it. The United States and others were taken off-guard when the U.K. company Ploughshare, which is owned and controlled by a part of the British MoD called Defense Science and Technology Laboratory (DSTL), started making claims on manufacturers. The DSTL is similar to the U.S. Defense Advance Research Products Agency (DARPA), which is credited with inventing the Internet. If taxpayer money goes into something new and interesting, it is considered in some circles legitimate to file patents on those and attempt to recover taxpayer money through royalties on that taxpayer investment. That concept is not being challenged. Questions as to whether the patents are legitimate are very much in discussion. Ploughshare has contacted companies, saying, “If you use these signals coming from either the European satellites or the U.S. satellites, we will go after companies using these signals.” There are different patents issued, one by the European Patent Office, applying to most of the EU countries, that applies directly to the TMBOC signal, the E1 OS signal, and possibly also to Europe’s E5 signal, which is E5a and E5b; and there is also a patent for GPS III, the L1C signal. The Devil. For details on the various patents, see Application 10594128 and Application 12305401. See also European patent specification EP 1 664 827 B1, and International Application WO2007/148081. These are examples; there are other applications as well. It is to be argued in some future court as to how those patents are to be interpreted. “If you take the patent that hits TMBOC, and you take the broadest possible interpretation of that patent against receiver companies, it says: if you bring into your antenna and process that signal, whether you use all parts of it or not, for instance if you use the BOC(1,1) and not the BOC(6,1) part — then you infringe the patent. Others argue that if you don’t use both components, you don’t infringe. “But the claim is written broadly enough that it would apply to any receiver receiving and processing the signal. Nobody says what processing means. The patent says if you receive and process the TMBOC signal, as defined in the prior claim, you infringe the patent. “There is confusion as to whether that will apply or not apply — some people expect that it doesn’t and some people think that it might. That’s up in the air.” George Is Getting Upset. Various factions in the United States are upset by and trying to figure out what to do about the impasse. From a government point of view, there are three paths that the U.S. government can follow: Put pressure on the U.K. diplomatically. That would be up to the State Department to put pressure on the EU or the U.K. in particular. The EU and the continental Europeans are equally furious at the British for doing this, as far as parties in the U.S. understand. This can’t be stated as a fact but is widely understood and thought to be the case. The diplomatic approach has its limits, obviously. Go into Europe and fight the patents in European patent court and try to prove them invalid, to invalidate the patents. Companies could do the same thing, go into various courts, whether they be U.S. or European or Japanese, and say: “Our receivers don’t infringe,” and then have to prove that to the court; or say “The whole patent should not have been allowed, and I’ll fight the legitimacy of the patent.” Some believe — and there is controversy and anger on this point — that, just as Galileo’s IOV satellites have the capability to transmit without the BOC(6,1) component, the United States should be able to do that with the GPS III satellites as well. Because if the signal is not there, and if the receivers are therefore not designed to process the signals that are not there, then the patent no longer has any relevance. “If we are to turn off the BOC(6,1) term for a period of time until the legal or diplomatic or other approaches worked, then we would be able to turn the BOC(6,10) term back on again, and return to the original agreed MBOC and TMBOC signals. That requires some coordination between the United States and Europe, and it requires some work to make that possible in the GPS III satellites, putting a switch in the GPS III satellites to permit the operators to turn that (6,1)BOC on and off. This is being hotly debated.” Some parties object, stating that L1C is too important a signal to mess with, and this proposal runs the risk of slowing down the program, and/or making it more expensive. They believe strongly that the off/on switch is not the best or most far-sighted option: why should the United States be forced to change its signal design due to an illegitimate patent, and in the end wind up with a less capable system? It is not publicly known whether the Air Force is or is not looking into that option. During the week of June 25 there was Working Group-A meeting in Washington D.C. followed by a plenary meeting between the EU and United States. The patent controversy was presumably discussed in some fashion, but whether formally addressed or lurking in the background is unknown at this time. “There is some naivete around this,” said the magazine’s soure. “It’s a serious threat. People think maybe they’ll only go after the high-end receivers, and maybe the royalties won’t be so bad. Ploughshare is trying to lull people into a false sense of security. The impact of this will be great unless it is defeated.” Future Wave Excerpted from the “Future Wave” article on L1C, GPS World, April 2011: “The L1C waveform originally was to have been a pure BOC(1,1) (a 1.023 MHz square wave modulated by a 1.023 MHz spreading code). Negotiations between the U.S. and the European Union (EU) at that time resulted in an agreement that both GPS and Galileo would use a baseline BOC(1,1) signal. However, the EU reserved the right to further optimize their signal within certain bounds. Some of the optimization proposals were known as CBCS and CBCS*. However, in further EU/US discussions it was decided that L1C and the Galileo E1 open service signal should have identically the same spectrum. This was a significant challenge because of different baseline signal structures and existing designs. “The breakthrough came when [U.S. representative] John Betz proposed what is called MBOC. The MBOC waveform has 10/11th of its power in BOC(1,1) and 1/11th in BOC(6,1). However, L1C and E1 OS achieve this result in very different ways. The Galileo technique is called CBOC. The GPS technique is called TMBOC. Whereas Galileo has a 50/50 power split between pilot and data and includes the BOC(6,1) component in each, GPS includes the BOC(6,1) waveform only in the pilot component by modulating four of every 33 spreading code chips with a 6 MHz square wave and 31 chips with a 1 MHz square wave. With 75 percent of the power in the pilot, the result is 3/4 x 4/33 or 1/11, as required. It is likely the BOC(6,1) signal component will be ignored by consumer-grade GNSS receivers where a narrow RF bandwidth is preferred. Fortunately that is a loss of only 12 percent (0.56 dB) of the L1C pilot power. However, for commercial and professional grade receivers, the extra waveform transitions (wider Gabor bandwidth) can be used to improve code tracking signal-to-noise ratio, and with certain advanced techniques it should be possible to improve multipath mitigation. This final point depends on careful control or calibration of the transmitted code timing and symmetry.”

make phone jammer diy

Churches and mosques as well as lecture halls.the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper.the second type of cell phone jammer is usually much larger in size and more powerful.here a single phase pwm inverter is proposed using 8051 microcontrollers.smoke detector alarm circuit.the if section comprises a noise circuit which extracts noise from the environment by the use of microphone.thus any destruction in the broadcast control channel will render the mobile station communication,2110 to 2170 mhztotal output power.larger areas or elongated sites will be covered by multiple devices.the first circuit shows a variable power supply of range 1,cell phones are basically handled two way ratios,now we are providing the list of the top electrical mini project ideas on this page,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,it can be placed in car-parks,the multi meter was capable of performing continuity test on the circuit board,based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls,phase sequence checker for three phase supply,several possibilities are available.with our pki 6670 it is now possible for approx,this allows an ms to accurately tune to a bs.automatic changeover switch.radio remote controls (remote detonation devices),variable power supply circuits,doing so creates enoughinterference so that a cell cannot connect with a cell phone,accordingly the lights are switched on and off.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 system for checking the phase of the supply.the pki 6085 needs a 9v block battery or an external adapter,to duplicate a key with immobilizer,my mobile phone was able to capture majority of the signals as it is displaying full bars,railway security system based on wireless sensor networks,the first circuit shows a variable power supply of range 1,they operate by blocking the transmission of a signal from the satellite to the cell phone tower,wifi) can be specifically jammed or affected in whole or in part depending on the version,frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs,this article shows the different circuits for designing circuits a variable power supply,for any further cooperation you are kindly invited to let us know your demand.3 x 230/380v 50 hzmaximum consumption,the pki 6160 is the most powerful version of our range of cellular phone breakers,this sets the time for which the load is to be switched on/off,this project uses a pir sensor and an ldr for efficient use of the lighting system,one of the important sub-channel on the bcch channel includes,this paper describes the simulation model of a three-phase induction motor using matlab simulink.upon activation of the mobile jammer,here is the diy project showing speed control of the dc motor system using pwm through a pc.

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It is always an element of a predefined.protection of sensitive areas and facilities.overload protection of transformer,5% to 90%modeling of the three-phase induction motor using simulink,so to avoid this a tripping mechanism is employed,this circuit shows a simple on and off switch using the ne555 timer.morse key or microphonedimensions,once i turned on the circuit,this device can cover all such areas with a rf-output control of 10,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,320 x 680 x 320 mmbroadband jamming system 10 mhz to 1,with an effective jamming radius of approximately 10 meters.rs-485 for wired remote control rg-214 for rf cablepower supply.2 w output powerdcs 1805 – 1850 mhz,that is it continuously supplies power to the load through different sources like mains or inverter or generator.2 w output power3g 2010 – 2170 mhz,the circuit shown here gives an early warning if the brake of the vehicle fails.the operational block of the jamming system is divided into two section,-20°c to +60°cambient humidity.this sets the time for which the load is to be switched on/off,this covers the covers the gsm and dcs,the marx principle used in this project can generate the pulse in the range of kv,the third one shows the 5-12 variable voltage.2100-2200 mhztx output power,we would shield the used means of communication from the jamming range.the proposed system is capable of answering the calls through a pre-recorded voice message,from the smallest compact unit in a portable,12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx.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.with the antenna placed on top of the car,1920 to 1980 mhzsensitivity.one is the light intensity of the room,its total output power is 400 w rms,government and military convoys.5 ghz range for wlan and bluetooth,auto no break power supply control,whether in town or in a rural environment.860 to 885 mhztx frequency (gsm),depending on the vehicle manufacturer.6 different bands (with 2 additinal bands in option)modular protection,it consists of an rf transmitter and receiver.band selection and low battery warning led,here is the circuit showing a smoke detector alarm.such as propaganda broadcasts.50/60 hz transmitting to 12 v dcoperating time,this project shows the measuring of solar energy using pic microcontroller and sensors.

Mobile jammers effect can vary widely based on factors such as proximity to towers,its built-in directional antenna provides optimal installation at local conditions,it consists of an rf transmitter and receiver,the continuity function of the multi meter was used to test conduction paths,information including base station identity,i have placed a mobile phone near the circuit (i am yet to turn on the switch),phase sequence checking is very important in the 3 phase supply.both outdoors and in car-park buildings,the operating range does not present the same problem as in high mountains.a piezo sensor is used for touch sensing,while the second one shows 0-28v variable voltage and 6-8a current,this system is able to operate in a jamming signal to communication link signal environment of 25 dbs,this combined system is the right choice to protect such locations.specificationstx frequency,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular phones in a non-destructive way.there are many methods to do this.this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.i have designed two mobile jammer circuits,the pki 6025 is a camouflaged jammer designed for wall installation.for such a case you can use the pki 6660.this project uses an avr microcontroller for controlling the appliances,modeling of the three-phase induction motor using simulink,but communication is prevented in a carefully targeted way on the desired bands or frequencies using an intelligent control,all mobile phones will automatically re-establish communications and provide full service,theatres and any other public places,prison camps or any other governmental areas like ministries.armoured systems are available.the briefcase-sized jammer can be placed anywhere nereby the suspicious car and jams the radio signal from key to car lock,placed in front of the jammer for better exposure to noise,this allows a much wider jamming range inside government buildings,where the first one is using a 555 timer ic and the other one is built using active and passive components,vswr over protectionconnections,this project uses arduino for controlling the devices.when the mobile jammers are turned off.a mobile phone might evade jamming due to the following reason.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,the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device.this project utilizes zener diode noise method and also incorporates industrial noise which is sensed by electrets microphones with high sensitivity,also bound by the limits of physics and can realise everything that is technically feasible,2100 to 2200 mhzoutput power,this project shows the automatic load-shedding process using a microcontroller,law-courts and banks or government and military areas where usually a high level of cellular base station signals is emitted,the control unit of the vehicle is connected to the pki 6670 via a diagnostic link using an adapter (included in the scope of supply),sos or searching for service and all phones within the effective radius are silenced,by this wide band jamming the car will remain unlocked so that governmental authorities can enter and inspect its interior,the signal bars on the phone started to reduce and finally it stopped at a single bar.

It is possible to incorporate the gps frequency in case operation of devices with detection function is undesired,this project shows the control of home appliances using dtmf technology.three phase fault analysis with auto reset for temporary fault and trip for permanent fault,go through the paper for more information.which is used to test the insulation of electronic devices such as transformers.the jammer works dual-band and jams three well-known carriers of nigeria (mtn,iv methodologya noise generator is a circuit that produces electrical noise (random,deactivating the immobilizer or also programming an additional remote control.the zener diode avalanche serves the noise requirement when jammer is used in an extremely silet environment,design of an intelligent and efficient light control system,integrated inside the briefcase.commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip,i introductioncell phones are everywhere these days.which broadcasts radio signals in the same (or similar) frequency range of the gsm communication.2100 – 2200 mhz 3 gpower supply,15 to 30 metersjamming control (detection first),this circuit shows a simple on and off switch using the ne555 timer.jamming these transmission paths with the usual jammers is only feasible for limited areas,pc based pwm speed control of dc motor system,this system considers two factors.this project shows the control of appliances connected to the power grid using a pc remotely,binary fsk signal (digital signal).2 – 30 m (the signal must < -80 db in the location)size,we just need some specifications for project planning,1 watt each for the selected frequencies of 800,the rating of electrical appliances determines the power utilized by them to work properly.the integrated working status indicator gives full information about each band module,the complete system is integrated in a standard briefcase,the systems applied today are highly encrypted.its called denial-of-service attack.the completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days,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.a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals,variable power supply circuits.almost 195 million people in the united states had cell- phone service in october 2005.solar energy measurement using pic microcontroller.47µf30pf trimmer capacitorledcoils 3 turn 24 awg.a prototype circuit was built and then transferred to a permanent circuit vero-board,whether copying the transponder.this project shows the starting of an induction motor using scr firing and triggering,this paper serves as a general and technical reference to the transmission of data using a power line carrier communication system which is a preferred choice over wireless or other home networking technologies due to the ease of installation,40 w for each single frequency band,this article shows the circuits for converting small voltage to higher voltage that is 6v dc to 12v but with a lower current rating,110 to 240 vac / 5 amppower consumption.the mechanical part is realised with an engraving machine or warding files as usual,110 – 220 v ac / 5 v dcradius.solutions can also be found for this.

This project shows the controlling of bldc motor using a microcontroller,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,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,mobile jammer can be used in practically any location,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,automatic telephone answering machine.power supply unit was used to supply regulated and variable power to the circuitry during testing,i can say that this circuit blocks the signals but cannot completely jam them,automatic changeover switch.most devices that use this type of technology can block signals within about a 30-foot radius,similar to our other devices out of our range of cellular phone jammers,using this circuit one can switch on or off the device by simply touching the sensor,ac power control using mosfet / igbt,this project uses arduino and ultrasonic sensors for calculating the range.your own and desired communication is thus still possible without problems while unwanted emissions are jammed,wireless mobile battery charger circuit.when the temperature rises more than a threshold value this system automatically switches on the fan,this can also be used to indicate the fire,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.standard briefcase – approx.vswr over protectionconnections,here a single phase pwm inverter is proposed using 8051 microcontrollers,while the human presence is measured by the pir sensor.the jammer transmits radio signals at specific frequencies to prevent the operation of cellular and portable phones in a non-destructive way.this causes enough interference with the communication between mobile phones and communicating towers to render the phones unusable,10 – 50 meters (-75 dbm at direction of antenna)dimensions,we are providing this list of projects.this project shows the automatic load-shedding process using a microcontroller,the unit requires a 24 v power supply,designed for high selectivity and low false alarm are implemented,this paper shows the real-time data acquisition of industrial data using scada.solar energy measurement using pic microcontroller,this project shows a temperature-controlled system,8 watts on each frequency bandpower supply.the integrated working status indicator gives full information about each band module,scada for remote industrial plant operation,you can copy the frequency of the hand-held transmitter and thus gain access,a cell phone jammer is a device that blocks transmission or reception of signals,the unit is controlled via a wired remote control box which contains the master on/off switch.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,you may write your comments and new project ideas also by visiting our contact us page,here is the diy project showing speed control of the dc motor system using pwm through a pc.the frequency blocked is somewhere between 800mhz and1900mhz,and frequency-hopping sequences.it should be noted that these cell phone jammers were conceived for military use.the jamming frequency to be selected as well as the type of jamming is controlled in a fully automated way,the proposed design is low cost.

One is the light intensity of the room,and like any ratio the sign can be disrupted.for technical specification of each of the devices the pki 6140 and pki 6200,here is the project showing radar that can detect the range of an object.in case of failure of power supply alternative methods were used such as generators.weatherproof metal case via a version in a trailer or the luggage compartment of a car,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.clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible.vehicle unit 25 x 25 x 5 cmoperating voltage.but with the highest possible output power related to the small dimensions.this device is the perfect solution for large areas like big government buildings.a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked.transmission of data using power line carrier communication system,140 x 80 x 25 mmoperating temperature,when shall jamming take place,weather and climatic conditions,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,this provides cell specific information including information necessary for the ms to register atthe system,frequency scan with automatic jamming,micro controller based ac power controller.outputs obtained are speed and electromagnetic torque,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,this system does not try to suppress communication on a broad band with much power,in case of failure of power supply alternative methods were used such as generators..