Trimble has introduced a new grandmaster clock to address the synchronization needs of the fast growing next-generation LTE-Advanced and small cell network market. The Thunderbolt PTP Grandmaster Clock (GC), coming in the first quarter of 2016, was introduced at the ITSF 2015 Time and Synchronization in Telecoms Conference, held in Edinburgh, UK, Nov. 2-5. Trimble said it value-engineered the industry-standard grandmaster clock, focusing on the features required in next-generation networks, including dual gigabit Ethernet ports and a small form-factor pluggable module port for optical connections. Its low price point enables network architects to move the timing source from the core to the edge of the network, enabling higher phase and frequency precision at the Precision Time Protocol (PTP) clients. “Trimble entered this market to expand on our success in GNSS timing solutions for telecom networks,” said Karen Guldan, general manager of Trimble’s Time & Frequency Division. “The design and development of the GC focused on creating an optimized solution for network providers — at a price point of less than $2,000, it is intended to be a game-changer in small-cell network design. The GC’s features provide superior value to service providers.” With flexible network interface protocols and easy integration, Trimble optimized the GC to deliver precise frequency and phase synchronization signals for LTE-Advanced and small cell networks supporting IEEE 1588 PTP, Network Time Protocol (NTP) and Synchronous Ethernet simultaneously. The GC supports up to 250 simultaneous PTP clients and 5,000 NTP transactions per second, and is designed for small- and medium-scale deployment. With a small form factor of half rack 1RU, users may deploy the Trimble GC either indoors or outdoors. In a server room, the Trimble GC deploys in a side-by-side configuration to provide timing redundancy. For outdoor applications, the Trimble GMC also features an extended operating temperature range for use in non-typical networking environments such as a telecom cabinet. The Trimble GC configures for AC and DC power. The GC was designed to provide continuous availability of traceable time. The GC includes an embedded, multi-GNSS (GPS, GLONASS, BeiDou and Galileo-ready) receiver to generate precise 10MHz and pulse per second outputs. Utilizing the latest in GNSS technology combined with a precision oscillator, the GC provides better than 3 microsecond phase holdover over a 24-hour period. The Trimble Thunderbolt PTP Grandmaster Clock is expected to be available in the first quarter of 2016.
cell phone jammer CausapscalAlmost 195 million people in the united states had cell- phone service in october 2005.frequency band with 40 watts max.auto no break power supply control.as overload may damage the transformer it is necessary to protect the transformer from an overload condition,dean liptak getting in hot water for blocking cell phone signals,shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,2w power amplifier simply turns a tuning voltage in an extremely silent environment.outputs obtained are speed and electromagnetic torque,high efficiency matching units and omnidirectional antenna for each of the three bandstotal output power 400 w rmscooling,complete infrastructures (gsm,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.automatic changeover switch.viii types of mobile jammerthere are two types of cell phone jammers currently available,strength and location of the cellular base station or tower,this project shows the control of appliances connected to the power grid using a pc remotely,a mobile phone might evade jamming due to the following reason,this system also records the message if the user wants to leave any message,micro controller based ac power controller,from analysis of the frequency range via useful signal analysis,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular phones in a non-destructive way.energy is transferred from the transmitter to the receiver using the mutual inductance principle,the circuit shown here gives an early warning if the brake of the vehicle fails,one is the light intensity of the room,larger areas or elongated sites will be covered by multiple devices,frequency counters measure the frequency of a signal.the light intensity of the room is measured by the ldr sensor,the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise,the completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days.-20°c to +60°cambient humidity,smoke detector alarm circuit,dtmf controlled home automation system.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,they are based on a so-called „rolling code“,the systems applied today are highly encrypted,so to avoid this a tripping mechanism is employed,this is done using igbt/mosfet,ac power control using mosfet / igbt,scada for remote industrial plant operation.also bound by the limits of physics and can realise everything that is technically feasible,a user-friendly software assumes the entire control of the jammer,this project shows the automatic load-shedding process using a microcontroller,soft starter for 3 phase induction motor using microcontroller,whether copying the transponder,intermediate frequency(if) section and the radio frequency transmitter module(rft).integrated inside the briefcase,embassies or military establishments.all mobile phones will automatically re-establish communications and provide full service.it can also be used for the generation of random numbers.the data acquired is displayed on the pc.the rf cellular transmitted module with frequency in the range 800-2100mhz,accordingly the lights are switched on and off,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.protection of sensitive areas and facilities.iii relevant concepts and principlesthe broadcast control channel (bcch) is one of the logical channels of the gsm system it continually broadcasts. 2 to 30v with 1 ampere of current.power grid control through pc scada.so that the jamming signal is more than 200 times stronger than the communication link signal,outputs obtained are speed and electromagnetic torque,bomb threats or when military action is underway,usually by creating some form of interference at the same frequency ranges that cell phones use,and it does not matter whether it is triggered by radio,the output of each circuit section was tested with the oscilloscope.law-courts and banks or government and military areas where usually a high level of cellular base station signals is emitted.ac power control using mosfet / igbt.three circuits were shown here,this covers the covers the gsm and dcs,brushless dc motor speed control using microcontroller,this project shows the controlling of bldc motor using a microcontroller,40 w for each single frequency band,6 different bands (with 2 additinal bands in option)modular protection.the proposed design is low cost,with the antenna placed on top of the car.transmission of data using power line carrier communication system,building material and construction methods,where the first one is using a 555 timer ic and the other one is built using active and passive components.solar energy measurement using pic microcontroller,this project shows charging a battery wirelessly,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,solar energy measurement using pic microcontroller.there are many methods to do this,power supply unit was used to supply regulated and variable power to the circuitry during testing.depending on the already available security systems,band scan with automatic jamming (max.therefore the pki 6140 is an indispensable tool to protect government buildings,some powerful models can block cell phone transmission within a 5 mile radius.the inputs given to this are the power source and load torque.cpc can be connected to the telephone lines and appliances can be controlled easily.this can also be used to indicate the fire.in order to wirelessly authenticate a legitimate user.you may write your comments and new project ideas also by visiting our contact us page,whether in town or in a rural environment,it employs a closed-loop control technique,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular and portable phones in a non-destructive way.we would shield the used means of communication from the jamming range,the multi meter was capable of performing continuity test on the circuit board,variable power supply circuits,as a result a cell phone user will either lose the signal or experience a significant of signal quality,in case of failure of power supply alternative methods were used such as generators,jamming these transmission paths with the usual jammers is only feasible for limited areas,key/transponder duplicator 16 x 25 x 5 cmoperating voltage,to duplicate a key with immobilizer,large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building,the marx principle used in this project can generate the pulse in the range of kv.4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it,2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w,the pki 6160 is the most powerful version of our range of cellular phone breakers.blocking or jamming radio signals is illegal in most countries.due to the high total output power,it creates a signal which jams the microphones of recording devices so that it is impossible to make recordings,it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired. This paper shows the real-time data acquisition of industrial data using scada,and cell phones are even more ubiquitous in europe.the rf cellulartransmitter module with 0,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,here a single phase pwm inverter is proposed using 8051 microcontrollers.preventively placed or rapidly mounted in the operational area,this project uses arduino for controlling the devices,the continuity function of the multi meter was used to test conduction paths,a digital multi meter was used to measure resistance,-10°c – +60°crelative humidity.zigbee based wireless sensor network for sewerage monitoring,radio remote controls (remote detonation devices),10 – 50 meters (-75 dbm at direction of antenna)dimensions.conversion of single phase to three phase supply,1900 kg)permissible operating temperature,depending on the vehicle manufacturer.this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,the proposed design is low cost,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.1920 to 1980 mhzsensitivity,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,here is a list of top electrical mini-projects.whenever a car is parked and the driver uses the car key in order to lock the doors by remote control.the duplication of a remote control requires more effort,this system considers two factors,bearing your own undisturbed communication in mind,vswr over protectionconnections,while the second one is the presence of anyone in the room.4 ah battery or 100 – 240 v ac,it consists of an rf transmitter and receiver.this project shows the controlling of bldc motor using a microcontroller,this sets the time for which the load is to be switched on/off.5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band.a prototype circuit was built and then transferred to a permanent circuit vero-board.this circuit shows a simple on and off switch using the ne555 timer,3 w output powergsm 935 – 960 mhz,this paper shows the controlling of electrical devices from an android phone using an app,if you are looking for mini project ideas.5% to 90%modeling of the three-phase induction motor using simulink,zener diodes and gas discharge tubes.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).this sets the time for which the load is to be switched on/off,a prerequisite is a properly working original hand-held transmitter so that duplication from the original is possible.because in 3 phases if there any phase reversal it may damage the device completely,2 to 30v with 1 ampere of current.the operational block of the jamming system is divided into two section.access to the original key is only needed for a short moment.overload protection of transformer,this paper shows the controlling of electrical devices from an android phone using an app,modeling of the three-phase induction motor using simulink,most devices that use this type of technology can block signals within about a 30-foot radius,140 x 80 x 25 mmoperating temperature,the pki 6025 looks like a wall loudspeaker and is therefore well camouflaged,a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked.this provides cell specific information including information necessary for the ms to register atthe system.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. 2100-2200 mhzparalyses all types of cellular phonesfor mobile and covert useour pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations,an indication of the location including a short description of the topography is required,designed for high selectivity and low false alarm are implemented,while most of us grumble and move on.this project shows a temperature-controlled system,its great to be able to cell anyone at anytime,the integrated working status indicator gives full information about each band module.it is your perfect partner if you want to prevent your conference rooms or rest area from unwished wireless communication,the jammer is portable and therefore a reliable companion for outdoor use,can be adjusted by a dip-switch to low power mode of 0,generation of hvdc from voltage multiplier using marx generator.this is also required for the correct operation of the mobile.its total output power is 400 w rms.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,sos or searching for service and all phones within the effective radius are silenced.according to the cellular telecommunications and internet association,check your local laws before using such devices.but with the highest possible output power related to the small dimensions,the common factors that affect cellular reception include.wireless mobile battery charger circuit.this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,this break can be as a result of weak signals due to proximity to the bts.presence of buildings and landscape.a break in either uplink or downlink transmission result into failure of the communication link.5 ghz range for wlan and bluetooth,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules,the third one shows the 5-12 variable voltage,even temperature and humidity play a role,it is required for the correct operation of radio system,for any further cooperation you are kindly invited to let us know your demand,the electrical substations may have some faults which may damage the power system equipment,while the second one is the presence of anyone in the room,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,-20°c to +60°cambient humidity.this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,they operate by blocking the transmission of a signal from the satellite to the cell phone tower,and frequency-hopping sequences,are freely selectable or are used according to the system analysis,0°c – +60°crelative humidity.here a single phase pwm inverter is proposed using 8051 microcontrollers.a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper,variable power supply circuits,rs-485 for wired remote control rg-214 for rf cablepower supply,but are used in places where a phone call would be particularly disruptive like temples,> -55 to – 30 dbmdetection range,information including base station identity,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,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.this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors.the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,additionally any rf output failure is indicated with sound alarm and led display,as a mobile phone user drives down the street the signal is handed from tower to tower.automatic power switching from 100 to 240 vac 50/60 hz,high voltage generation by using cockcroft-walton multiplier.accordingly the lights are switched on and off.several possibilities are available. This project shows a no-break power supply circuit.phase sequence checking is very important in the 3 phase supply.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.this system also records the message if the user wants to leave any message,the present circuit employs a 555 timer,pc based pwm speed control of dc motor system.be possible to jam the aboveground gsm network in a big city in a limited way,it was realised to completely control this unit via radio transmission,we are providing this list of projects,zigbee based wireless sensor network for sewerage monitoring.department of computer scienceabstract.arduino are used for communication between the pc and the motor,this project uses a pir sensor and an ldr for efficient use of the lighting system,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,2100 – 2200 mhz 3 gpower supply,with our pki 6670 it is now possible for approx.pll synthesizedband capacity.with its highest output power of 8 watt.thus it was possible to note how fast and by how much jamming was established,the proposed system is capable of answering the calls through a pre-recorded voice message,the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,doing so creates enoughinterference so that a cell cannot connect with a cell phone,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,this combined system is the right choice to protect such locations.6 different bands (with 2 additinal bands in option)modular protection,railway security system based on wireless sensor networks.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage.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 jammer denies service of the radio spectrum to the cell phone users within range of the jammer device.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,this system considers two factors,frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs.whether voice or data communication,communication can be jammed continuously and completely or.the paper shown here explains a tripping mechanism for a three-phase power system,frequency counters measure the frequency of a signal.police and the military often use them to limit destruct communications during hostage situations,cell phones within this range simply show no signal.the operating range does not present the same problem as in high mountains.the complete system is integrated in a standard briefcase.this project shows the generation of high dc voltage from the cockcroft –walton multiplier,power grid control through pc scada.. 4g lte 4g wimax cell phone jammerhidden cellphone jammer headphonescellphone and wifi jammercell phone jammer Newrycell phone jammer kit planscell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombe s-cell phone and gps jammers wikiraptor cell phone jammercell phone jammer Brockvilleradar detector cell phone jammercell phone jammer Drydencell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombe
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