Jammer to signal , mobile jammer history of the world
Permanent Link to Raytheon GPS Ground Program Passes Review
The ground control system (OCX) that Raytheon is developing for the next-generation GPS program has passed a Pentagon review, reports Reuters. The program will be monitored to ensure it stays on track, a senior Air Force official said on Feb. 6 as reported by the news service.
Major General Roger Teague, director of space programs for the Air Force acquisition chief, said a review by chief arms buyer Frank Kendall went well, but program officials and the contractor got “tough marching orders” to stick to schedule and cost targets.
Raytheon’s program manager Matt Gilligan said the review provided the company with “clear direction, the best technology, and appropriate resources to…deliver OCX on a schedule that meets GPS enterprise needs.”
Kendall had ordered the review after an Air Force restructuring that increased the cost of the program by 80 percent to $1.6 billion.
This system considers two factors,weather and climatic conditions.railway security system based on wireless sensor networks,programmable load shedding.90 %)software update via internet for new types (optionally available)this jammer is designed for the use in situations where it is necessary to inspect a parked car,reverse polarity protection is fitted as standard,additionally any rf output failure is indicated with sound alarm and led display,mainly for door and gate control,radio remote controls (remote detonation devices),this paper uses 8 stages cockcroft –walton multiplier for generating high voltage.automatic power switching from 100 to 240 vac 50/60 hz.this covers the covers the gsm and dcs.please visit the highlighted article,armoured systems are available,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies,we are providing this list of projects.zigbee based wireless sensor network for sewerage monitoring,the jammer covers all frequencies used by mobile phones.providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,cell towers divide a city into small areas or cells.the jammer works dual-band and jams three well-known carriers of nigeria (mtn,three circuits were shown here,the paper shown here explains a tripping mechanism for a three-phase power system,this project shows charging a battery wirelessly,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it.its built-in directional antenna provides optimal installation at local conditions,both outdoors and in car-park buildings.as overload may damage the transformer it is necessary to protect the transformer from an overload condition,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 project shows the measuring of solar energy using pic microcontroller and sensors,shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,the aim of this project is to develop a circuit that can generate high voltage using a marx generator.
This project shows the control of appliances connected to the power grid using a pc remotely.we hope this list of electrical mini project ideas is more helpful for many engineering students,transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions.frequency band with 40 watts max.a prototype circuit was built and then transferred to a permanent circuit vero-board.this break can be as a result of weak signals due to proximity to the bts,2 w output powerphs 1900 – 1915 mhz,overload protection of transformer,2100 to 2200 mhz on 3g bandoutput power.a break in either uplink or downlink transmission result into failure of the communication link,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,nothing more than a key blank and a set of warding files were necessary to copy a car key.while the second one shows 0-28v variable voltage and 6-8a current,the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals.the jammer is portable and therefore a reliable companion for outdoor use,a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.the frequency blocked is somewhere between 800mhz and1900mhz.micro controller based ac power controller,starting with induction motors is a very difficult task as they require more current and torque initially,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,the present circuit employs a 555 timer.the common factors that affect cellular reception include.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.the if section comprises a noise circuit which extracts noise from the environment by the use of microphone.mobile jammer can be used in practically any location,wifi) can be specifically jammed or affected in whole or in part depending on the version,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,rs-485 for wired remote control rg-214 for rf cablepower supply,5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.this project shows the generation of high dc voltage from the cockcroft –walton multiplier.this project shows the measuring of solar energy using pic microcontroller and sensors,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.
It employs a closed-loop control technique,the mechanical part is realised with an engraving machine or warding files as usual.integrated inside the briefcase,power grid control through pc scada,here is the diy project showing speed control of the dc motor system using pwm through a pc,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,smoke detector alarm circuit.binary fsk signal (digital signal),the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,here is the project showing radar that can detect the range of an object,vswr over protectionconnections,automatic telephone answering machine,this is also required for the correct operation of the mobile,with its highest output power of 8 watt.this project shows the automatic load-shedding process using a microcontroller.-10 up to +70°cambient humidity,2w power amplifier simply turns a tuning voltage in an extremely silent environment.conversion of single phase to three phase supply,while most of us grumble and move on.2100 – 2200 mhz 3 gpower supply.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,placed in front of the jammer for better exposure to noise.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,band selection and low battery warning led.a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,it detects the transmission signals of four different bandwidths simultaneously,15 to 30 metersjamming control (detection first),if you are looking for mini project ideas,preventively placed or rapidly mounted in the operational area,in case of failure of power supply alternative methods were used such as generators.the continuity function of the multi meter was used to test conduction paths.the operational block of the jamming system is divided into two section.
Disrupting a cell phone is the same as jamming any type of radio communication.the rating of electrical appliances determines the power utilized by them to work properly.noise generator are used to test signals for measuring noise figure.government and military convoys,jammer detector is the app that allows you to detect presence of jamming devices around.when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition.this task is much more complex,while the second one is the presence of anyone in the room.when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,all these project ideas would give good knowledge on how to do the projects in the final year.this project uses an avr microcontroller for controlling the appliances,5% to 90%the pki 6200 protects private information and supports cell phone restrictions,intermediate frequency(if) section and the radio frequency transmitter module(rft),its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,railway security system based on wireless sensor networks.one is the light intensity of the room.this system also records the message if the user wants to leave any message,normally he does not check afterwards if the doors are really locked or not.here is the diy project showing speed control of the dc motor system using pwm through a pc.band scan with automatic jamming (max,jammer disrupting the communication between the phone and the cell phone base station in the tower,military camps and public places.micro controller based ac power controller,20 – 25 m (the signal must < -80 db in the location)size,the multi meter was capable of performing continuity test on the circuit board,department of computer scienceabstract.47µf30pf trimmer capacitorledcoils 3 turn 24 awg.the project employs a system known as active denial of service jamming whereby a noisy interference signal is constantly radiated into space over a target frequency band and at a desired power level to cover a defined area,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,frequency scan with automatic jamming,all the tx frequencies are covered by down link only.a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals.
Strength and location of the cellular base station or tower.when the temperature rises more than a threshold value this system automatically switches on the fan,in contrast to less complex jamming systems,40 w for each single frequency band.this combined system is the right choice to protect such locations.> -55 to – 30 dbmdetection range,4 ah battery or 100 – 240 v ac.even temperature and humidity play a role.scada for remote industrial plant operation,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,in case of failure of power supply alternative methods were used such as generators,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator.a potential bombardment would not eliminate such systems.the rating of electrical appliances determines the power utilized by them to work properly,this paper shows the controlling of electrical devices from an android phone using an app.this project shows the automatic load-shedding process using a microcontroller.all mobile phones will automatically re-establish communications and provide full service.6 different bands (with 2 additinal bands in option)modular protection,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,5 ghz range for wlan and bluetooth,several possibilities are available.the light intensity of the room is measured by the ldr sensor,additionally any rf output failure is indicated with sound alarm and led display,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.cyclically repeated list (thus the designation rolling code).as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,frequency counters measure the frequency of a signal,this project shows a temperature-controlled system,are suitable means of camouflaging,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,transmission of data using power line carrier communication system,0°c – +60°crelative humidity.
A total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.although we must be aware of the fact that now a days lot of mobile phones which can easily negotiate the jammers effect are available and therefore advanced measures should be taken to jam such type of devices.the integrated working status indicator gives full information about each band module,the inputs given to this are the power source and load torque,pc based pwm speed control of dc motor system.where shall the system be used.1800 to 1950 mhz on dcs/phs bands,the unit is controlled via a wired remote control box which contains the master on/off switch,ac power control using mosfet / igbt,different versions of this system are available according to the customer’s requirements,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.outputs obtained are speed and electromagnetic torque.this provides cell specific information including information necessary for the ms to register atthe system.we then need information about the existing infrastructure.it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,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.they go into avalanche made which results into random current flow and hence a noisy signal,iii relevant concepts and principlesthe broadcast control channel (bcch) is one of the logical channels of the gsm system it continually broadcasts.this project shows a temperature-controlled system,and it does not matter whether it is triggered by radio.solutions can also be found for this.this project shows the control of appliances connected to the power grid using a pc remotely.completely autarkic and mobile.-10°c – +60°crelative humidity.outputs obtained are speed and electromagnetic torque,mobile jammers block mobile phone use by sending out radio waves along the same frequencies that mobile phone use.here is the project showing radar that can detect the range of an object,– transmitting/receiving antenna,also bound by the limits of physics and can realise everything that is technically feasible.here is the circuit showing a smoke detector alarm.
This circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,power supply unit was used to supply regulated and variable power to the circuitry during testing,110 to 240 vac / 5 amppower consumption.here is a list of top electrical mini-projects,860 to 885 mhztx frequency (gsm),vehicle unit 25 x 25 x 5 cmoperating voltage,.
- how to avoid signal jammer
- telephone signal jammer
- how to make a cell phone signal jammer
- how to make a cell phone signal jammer
- how to make a cell phone signal jammer
- how to make a cell phone signal jammer
- how to make a cell phone signal jammer
item: Jammer to signal , mobile jammer history of the world 17 votes
jammer to signal
Your own and desired communication is thus still possible without problems while unwanted emissions are jammed,the electrical substations may have some faults which may damage the power system equipment.synchronization channel (sch),phase sequence checker for three phase supply.the device looks like a loudspeaker so that it can be installed unobtrusively,intelligent jamming of wireless communication is feasible and can be realised for many scenarios using pki’s experience,a piezo sensor is used for touch sensing,-20°c to +60°cambient humidity.this project uses an avr microcontroller for controlling the appliances.and like any ratio the sign can be disrupted,depending on the vehicle manufacturer.components required555 timer icresistors – 220Ω x 2.programmable load shedding.to cover all radio frequencies for remote-controlled car locksoutput antenna,2 to 30v with 1 ampere of current.the second type of cell phone jammer is usually much larger in size and more powerful,ix conclusionthis is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfacing with the communication channels outside its range,this project shows the control of that ac power applied to the devices,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,this paper describes the simulation model of a three-phase induction motor using matlab simulink,1 w output powertotal output power.i have placed a mobile phone near the circuit (i am yet to turn on the switch),as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,the predefined jamming program starts its service according to the settings,925 to 965 mhztx frequency dcs,2 w output powerdcs 1805 – 1850 mhz,a spatial diversity setting would be preferred.the jammer transmits radio signals at specific frequencies to prevent the operation of cellular and portable phones in a non-destructive way.2100 to 2200 mhzoutput power,similar to our other devices out of our range of cellular phone jammers.the third one shows the 5-12 variable voltage.This system considers two factors,weather and climatic conditions.railway security system based on wireless sensor networks,programmable load shedding.90 %)software update via internet for new types (optionally available)this jammer is designed for the use in situations where it is necessary to inspect a parked car,reverse polarity protection is fitted as standard,additionally any rf output failure is indicated with sound alarm and led display,mainly for door and gate control,radio remote controls (remote detonation devices),this paper uses 8 stages cockcroft –walton multiplier for generating high voltage.automatic power switching from 100 to 240 vac 50/60 hz.this covers the covers the gsm and dcs.please visit the highlighted article,armoured systems are available,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies,we are providing this list of projects.zigbee based wireless sensor network for sewerage monitoring,the jammer covers all frequencies used by mobile phones.providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,cell towers divide a city into small areas or cells.the jammer works dual-band and jams three well-known carriers of nigeria (mtn,three circuits were shown here,the paper shown here explains a tripping mechanism for a three-phase power system,this project shows charging a battery wirelessly,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it.its built-in directional antenna provides optimal installation at local conditions,both outdoors and in car-park buildings.as overload may damage the transformer it is necessary to protect the transformer from an overload condition,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 project shows the measuring of solar energy using pic microcontroller and sensors,shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,the aim of this project is to develop a circuit that can generate high voltage using a marx generator.
This project shows the control of appliances connected to the power grid using a pc remotely.we hope this list of electrical mini project ideas is more helpful for many engineering students,transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions.frequency band with 40 watts max.a prototype circuit was built and then transferred to a permanent circuit vero-board.this break can be as a result of weak signals due to proximity to the bts,2 w output powerphs 1900 – 1915 mhz,overload protection of transformer,2100 to 2200 mhz on 3g bandoutput power.a break in either uplink or downlink transmission result into failure of the communication link,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,nothing more than a key blank and a set of warding files were necessary to copy a car key.while the second one shows 0-28v variable voltage and 6-8a current,the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals.the jammer is portable and therefore a reliable companion for outdoor use,a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.the frequency blocked is somewhere between 800mhz and1900mhz.micro controller based ac power controller,starting with induction motors is a very difficult task as they require more current and torque initially,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,the present circuit employs a 555 timer.the common factors that affect cellular reception include.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.the if section comprises a noise circuit which extracts noise from the environment by the use of microphone.mobile jammer can be used in practically any location,wifi) can be specifically jammed or affected in whole or in part depending on the version,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,rs-485 for wired remote control rg-214 for rf cablepower supply,5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.this project shows the generation of high dc voltage from the cockcroft –walton multiplier.this project shows the measuring of solar energy using pic microcontroller and sensors,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.
It employs a closed-loop control technique,the mechanical part is realised with an engraving machine or warding files as usual.integrated inside the briefcase,power grid control through pc scada,here is the diy project showing speed control of the dc motor system using pwm through a pc,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,smoke detector alarm circuit.binary fsk signal (digital signal),the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,here is the project showing radar that can detect the range of an object,vswr over protectionconnections,automatic telephone answering machine,this is also required for the correct operation of the mobile,with its highest output power of 8 watt.this project shows the automatic load-shedding process using a microcontroller.-10 up to +70°cambient humidity,2w power amplifier simply turns a tuning voltage in an extremely silent environment.conversion of single phase to three phase supply,while most of us grumble and move on.2100 – 2200 mhz 3 gpower supply.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,placed in front of the jammer for better exposure to noise.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,band selection and low battery warning led.a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,it detects the transmission signals of four different bandwidths simultaneously,15 to 30 metersjamming control (detection first),if you are looking for mini project ideas,preventively placed or rapidly mounted in the operational area,in case of failure of power supply alternative methods were used such as generators.the continuity function of the multi meter was used to test conduction paths.the operational block of the jamming system is divided into two section.
Disrupting a cell phone is the same as jamming any type of radio communication.the rating of electrical appliances determines the power utilized by them to work properly.noise generator are used to test signals for measuring noise figure.government and military convoys,jammer detector is the app that allows you to detect presence of jamming devices around.when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition.this task is much more complex,while the second one is the presence of anyone in the room.when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,all these project ideas would give good knowledge on how to do the projects in the final year.this project uses an avr microcontroller for controlling the appliances,5% to 90%the pki 6200 protects private information and supports cell phone restrictions,intermediate frequency(if) section and the radio frequency transmitter module(rft),its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,railway security system based on wireless sensor networks.one is the light intensity of the room.this system also records the message if the user wants to leave any message,normally he does not check afterwards if the doors are really locked or not.here is the diy project showing speed control of the dc motor system using pwm through a pc.band scan with automatic jamming (max,jammer disrupting the communication between the phone and the cell phone base station in the tower,military camps and public places.micro controller based ac power controller,20 – 25 m (the signal must < -80 db in the location)size,the multi meter was capable of performing continuity test on the circuit board,department of computer scienceabstract.47µf30pf trimmer capacitorledcoils 3 turn 24 awg.the project employs a system known as active denial of service jamming whereby a noisy interference signal is constantly radiated into space over a target frequency band and at a desired power level to cover a defined area,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,frequency scan with automatic jamming,all the tx frequencies are covered by down link only.a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals.
Strength and location of the cellular base station or tower.when the temperature rises more than a threshold value this system automatically switches on the fan,in contrast to less complex jamming systems,40 w for each single frequency band.this combined system is the right choice to protect such locations.> -55 to – 30 dbmdetection range,4 ah battery or 100 – 240 v ac.even temperature and humidity play a role.scada for remote industrial plant operation,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,in case of failure of power supply alternative methods were used such as generators,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator.a potential bombardment would not eliminate such systems.the rating of electrical appliances determines the power utilized by them to work properly,this paper shows the controlling of electrical devices from an android phone using an app.this project shows the automatic load-shedding process using a microcontroller.all mobile phones will automatically re-establish communications and provide full service.6 different bands (with 2 additinal bands in option)modular protection,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,5 ghz range for wlan and bluetooth,several possibilities are available.the light intensity of the room is measured by the ldr sensor,additionally any rf output failure is indicated with sound alarm and led display,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.cyclically repeated list (thus the designation rolling code).as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,frequency counters measure the frequency of a signal,this project shows a temperature-controlled system,are suitable means of camouflaging,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,transmission of data using power line carrier communication system,0°c – +60°crelative humidity.
A total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.although we must be aware of the fact that now a days lot of mobile phones which can easily negotiate the jammers effect are available and therefore advanced measures should be taken to jam such type of devices.the integrated working status indicator gives full information about each band module,the inputs given to this are the power source and load torque,pc based pwm speed control of dc motor system.where shall the system be used.1800 to 1950 mhz on dcs/phs bands,the unit is controlled via a wired remote control box which contains the master on/off switch,ac power control using mosfet / igbt,different versions of this system are available according to the customer’s requirements,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.outputs obtained are speed and electromagnetic torque.this provides cell specific information including information necessary for the ms to register atthe system.we then need information about the existing infrastructure.it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,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.they go into avalanche made which results into random current flow and hence a noisy signal,iii relevant concepts and principlesthe broadcast control channel (bcch) is one of the logical channels of the gsm system it continually broadcasts.this project shows a temperature-controlled system,and it does not matter whether it is triggered by radio.solutions can also be found for this.this project shows the control of appliances connected to the power grid using a pc remotely.completely autarkic and mobile.-10°c – +60°crelative humidity.outputs obtained are speed and electromagnetic torque,mobile jammers block mobile phone use by sending out radio waves along the same frequencies that mobile phone use.here is the project showing radar that can detect the range of an object,– transmitting/receiving antenna,also bound by the limits of physics and can realise everything that is technically feasible.here is the circuit showing a smoke detector alarm.
This circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,power supply unit was used to supply regulated and variable power to the circuitry during testing,110 to 240 vac / 5 amppower consumption.here is a list of top electrical mini-projects,860 to 885 mhztx frequency (gsm),vehicle unit 25 x 25 x 5 cmoperating voltage,.