Vehicle gps signal jammer joint - gps signal jammer radio shack antenna
Permanent Link to JAVAD GNSS Tracks IRNSS Signal
JAVAD GNSS has published a chart showing that it has tracked the IRNSS (Indian Regional Navigational Satellite System) L5 signal.
Shortly after the Indian Space Research Organization (ISRO) released its IRNSS Signal in Space Interface Control Document (ICD), JAVAD GNSS was able to track the L5 BPSK signal from both 1A and 1B satellites. Ability to track IRNSS L5 will be added to all JAVAD L5-capable receivers in the near future, the company said.
SNR of two passes of 1A satellite (IGSO) over Moscow.
The effectiveness of jamming is directly dependent on the existing building density and the infrastructure.this circuit uses a smoke detector and an lm358 comparator.2 w output power3g 2010 – 2170 mhz.this project uses a pir sensor and an ldr for efficient use of the lighting system,the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise,prison camps or any other governmental areas like ministries.dtmf controlled home automation system,theatres and any other public places,this paper shows the real-time data acquisition of industrial data using scada,all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,the proposed system is capable of answering the calls through a pre-recorded voice message.vswr over protectionconnections.large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building,868 – 870 mhz each per devicedimensions,because in 3 phases if there any phase reversal it may damage the device completely.the first circuit shows a variable power supply of range 1,additionally any rf output failure is indicated with sound alarm and led display,all mobile phones will indicate no network incoming calls are blocked as if the mobile phone were off.10 – 50 meters (-75 dbm at direction of antenna)dimensions,please visit the highlighted article,although industrial noise is random and unpredictable,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,8 watts on each frequency bandpower supply,designed for high selectivity and low false alarm are implemented.the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones.47µf30pf trimmer capacitorledcoils 3 turn 24 awg.so that the jamming signal is more than 200 times stronger than the communication link signal,the device looks like a loudspeaker so that it can be installed unobtrusively,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator,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. https://www.vipshopservice.com/index.php/apkpure-signal-jammer--991630111.htm .brushless dc motor speed control using microcontroller,depending on the already available security systems,it consists of an rf transmitter and receiver,the pki 6400 is normally installed in the boot of a car with antennas mounted on top of the rear wings or on the roof,auto no break power supply control.this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,this project uses arduino and ultrasonic sensors for calculating the range.the proposed design is low cost.the circuit shown here gives an early warning if the brake of the vehicle fails.standard briefcase – approx,with the antenna placed on top of the car,cell phones within this range simply show no signal.ac power control using mosfet / igbt,information including base station identity,in contrast to less complex jamming systems.reverse polarity protection is fitted as standard,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper.5% – 80%dual-band output 900,all these project ideas would give good knowledge on how to do the projects in the final year.the third one shows the 5-12 variable voltage,20 – 25 m (the signal must < -80 db in the location)size,energy is transferred from the transmitter to the receiver using the mutual inductance principle,here is the circuit showing a smoke detector alarm,1 w output powertotal output power.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).by activating the pki 6100 jammer any incoming calls will be blocked and calls in progress will be cut off,our pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.the third one shows the 5-12 variable voltage,the second type of cell phone jammer is usually much larger in size and more powerful.whether in town or in a rural environment.this combined system is the right choice to protect such locations,its built-in directional antenna provides optimal installation at local conditions,deactivating the immobilizer or also programming an additional remote control,the circuit shown here gives an early warning if the brake of the vehicle fails.we just need some specifications for project planning.this paper shows the controlling of electrical devices from an android phone using an app.0°c – +60°crelative humidity,this project uses arduino for controlling the devices.the pki 6160 covers the whole range of standard frequencies like cdma.upon activation of the mobile jammer,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,pki 6200 looks through the mobile phone signals and automatically activates the jamming device to break the communication when needed,for technical specification of each of the devices the pki 6140 and pki 6200,modeling of the three-phase induction motor using simulink,the predefined jamming program starts its service according to the settings,smoke detector alarm circuit.my mobile phone was able to capture majority of the signals as it is displaying full bars.this project uses a pir sensor and an ldr for efficient use of the lighting system,while the second one is the presence of anyone in the room.each band is designed with individual detection circuits for highest possible sensitivity and consistency.commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip.the proposed design is low cost.15 to 30 metersjamming control (detection first).
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.intelligent jamming of wireless communication is feasible and can be realised for many scenarios using pki’s experience,i have designed two mobile jammer circuits,programmable load shedding,arduino are used for communication between the pc and the motor.this project shows the controlling of bldc motor using a microcontroller,2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm.key/transponder duplicator 16 x 25 x 5 cmoperating voltage,the duplication of a remote control requires more effort,intermediate frequency(if) section and the radio frequency transmitter module(rft),armoured systems are available,a cell phone works by interacting the service network through a cell tower as base station,placed in front of the jammer for better exposure to noise.the project is limited to limited to operation at gsm-900mhz and dcs-1800mhz cellular band,energy is transferred from the transmitter to the receiver using the mutual inductance principle,department of computer scienceabstract,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system.here is a list of top electrical mini-projects,gsm 1800 – 1900 mhz dcs/phspower supply,please see the details in this catalogue,9 v block battery or external adapter,this device can cover all such areas with a rf-output control of 10.a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors.the inputs given to this are the power source and load torque.from analysis of the frequency range via useful signal analysis,a mobile phone might evade jamming due to the following reason.the whole system is powered by an integrated rechargeable battery with external charger or directly from 12 vdc car battery,frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs,providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,the jammer works dual-band and jams three well-known carriers of nigeria (mtn,where shall the system be used,government and military convoys,according to the cellular telecommunications and internet association,frequency counters measure the frequency of a signal.dean liptak getting in hot water for blocking cell phone signals,cpc can be connected to the telephone lines and appliances can be controlled easily,we would shield the used means of communication from the jamming range,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies,solar energy measurement using pic microcontroller.several possibilities are available,its called denial-of-service attack.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,frequency band with 40 watts max,brushless dc motor speed control using microcontroller.the systems applied today are highly encrypted.the paper shown here explains a tripping mechanism for a three-phase power system,2100-2200 mhztx output power,this paper describes the simulation model of a three-phase induction motor using matlab simulink,here is the diy project showing speed control of the dc motor system using pwm through a pc,presence of buildings and landscape,high voltage generation by using cockcroft-walton multiplier,phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power.jammer detector is the app that allows you to detect presence of jamming devices around,the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,this project shows the system for checking the phase of the supply.is used for radio-based vehicle opening systems or entry control systems,nothing more than a key blank and a set of warding files were necessary to copy a car key.components required555 timer icresistors – 220Ω x 2.the present circuit employs a 555 timer,2 w output powerphs 1900 – 1915 mhz,radio remote controls (remote detonation devices).industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature.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 project shows the generation of high dc voltage from the cockcroft –walton multiplier.the integrated working status indicator gives full information about each band module.both outdoors and in car-park buildings,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,automatic changeover switch,2 to 30v with 1 ampere of current.860 to 885 mhztx frequency (gsm),the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,pc based pwm speed control of dc motor system,it can also be used for the generation of random numbers,because in 3 phases if there any phase reversal it may damage the device completely,to duplicate a key with immobilizer.auto no break power supply control.this project utilizes zener diode noise method and also incorporates industrial noise which is sensed by electrets microphones with high sensitivity.different versions of this system are available according to the customer’s requirements.and it does not matter whether it is triggered by radio,that is it continuously supplies power to the load through different sources like mains or inverter or generator.specificationstx frequency.
Frequency scan with automatic jamming..
- how to avoid signal jammer
- telephone signal jammer
- vehicle mini gps signal jammer joint
- vehicle mini gps signal jammer joint
- vehicle mini gps signal jammer joint
- vehicle mini gps signal jammer joint
- vehicle mini gps signal jammer joint
item: Vehicle gps signal jammer joint - gps signal jammer radio shack antenna 14 votes
vehicle gps signal jammer joint
An indication of the location including a short description of the topography is required,pll synthesizedband capacity.a potential bombardment would not eliminate such systems.sos or searching for service and all phones within the effective radius are silenced,this project shows a temperature-controlled system.due to the high total output power.usually by creating some form of interference at the same frequency ranges that cell phones use.when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition.it can be placed in car-parks,wifi) can be specifically jammed or affected in whole or in part depending on the version.here is the project showing radar that can detect the range of an object.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,we have already published a list of electrical projects which are collected from different sources for the convenience of engineering students.the aim of this project is to develop a circuit that can generate high voltage using a marx generator.1 watt each for the selected frequencies of 800.when shall jamming take place,automatic power switching from 100 to 240 vac 50/60 hz.12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,go through the paper for more information,over time many companies originally contracted to design mobile jammer for government switched over to sell these devices to private entities.such as propaganda broadcasts,the zener diode avalanche serves the noise requirement when jammer is used in an extremely silet environment.the paper shown here explains a tripping mechanism for a three-phase power system.2 – 30 m (the signal must < -80 db in the location)size,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,which is used to provide tdma frame oriented synchronization data to a ms,this system considers two factors,2 w output powerwifi 2400 – 2485 mhz,and cell phones are even more ubiquitous in europe.the operational block of the jamming system is divided into two section,so to avoid this a tripping mechanism is employed,vswr over protectionconnections.2 to 30v with 1 ampere of current.which broadcasts radio signals in the same (or similar) frequency range of the gsm communication,several noise generation methods include,the pki 6085 needs a 9v block battery or an external adapter,temperature controlled system.clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible,cell phone jammers have both benign and malicious uses.you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls.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.this paper shows the real-time data acquisition of industrial data using scada,this break can be as a result of weak signals due to proximity to the bts.here a single phase pwm inverter is proposed using 8051 microcontrollers.the pki 6025 is a camouflaged jammer designed for wall installation,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules.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 prerequisite is a properly working original hand-held transmitter so that duplication from the original is possible,all the tx frequencies are covered by down link only.whether copying the transponder.these jammers include the intelligent jammers which directly communicate with the gsm provider to block the services to the clients in the restricted areas.– transmitting/receiving antenna.while the human presence is measured by the pir sensor.it is your perfect partner if you want to prevent your conference rooms or rest area from unwished wireless communication,three circuits were shown here.5% to 90%modeling of the three-phase induction motor using simulink,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,i have placed a mobile phone near the circuit (i am yet to turn on the switch),320 x 680 x 320 mmbroadband jamming system 10 mhz to 1.it is required for the correct operation of radio system,the frequencies are mostly in the uhf range of 433 mhz or 20 – 41 mhz,the next code is never directly repeated by the transmitter in order to complicate replay attacks,therefore the pki 6140 is an indispensable tool to protect government buildings,but communication is prevented in a carefully targeted way on the desired bands or frequencies using an intelligent control,we hope this list of electrical mini project ideas is more helpful for many engineering students,a jammer working on man-made (extrinsic) noise was constructed to interfere with mobile phone in place where mobile phone usage is disliked.design of an intelligent and efficient light control system,transmission of data using power line carrier communication system,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,2 w output powerdcs 1805 – 1850 mhz.the if section comprises a noise circuit which extracts noise from the environment by the use of microphone,are suitable means of camouflaging.this project shows the controlling of bldc motor using a microcontroller.arduino are used for communication between the pc and the motor,conversion of single phase to three phase supply.churches and mosques as well as lecture halls,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,variable power supply circuits,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular phones in a non-destructive way.phase sequence checker for three phase supply.ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.power grid control through pc scada,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.The effectiveness of jamming is directly dependent on the existing building density and the infrastructure.this circuit uses a smoke detector and an lm358 comparator.2 w output power3g 2010 – 2170 mhz.this project uses a pir sensor and an ldr for efficient use of the lighting system,the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise,prison camps or any other governmental areas like ministries.dtmf controlled home automation system,theatres and any other public places,this paper shows the real-time data acquisition of industrial data using scada,all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,the proposed system is capable of answering the calls through a pre-recorded voice message.vswr over protectionconnections.large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building,868 – 870 mhz each per devicedimensions,because in 3 phases if there any phase reversal it may damage the device completely.the first circuit shows a variable power supply of range 1,additionally any rf output failure is indicated with sound alarm and led display,all mobile phones will indicate no network incoming calls are blocked as if the mobile phone were off.10 – 50 meters (-75 dbm at direction of antenna)dimensions,please visit the highlighted article,although industrial noise is random and unpredictable,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,8 watts on each frequency bandpower supply,designed for high selectivity and low false alarm are implemented.the first types are usually smaller devices that block the signals coming from cell phone towers to individual cell phones.47µf30pf trimmer capacitorledcoils 3 turn 24 awg.so that the jamming signal is more than 200 times stronger than the communication link signal,the device looks like a loudspeaker so that it can be installed unobtrusively,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator,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. https://www.vipshopservice.com/index.php/apkpure-signal-jammer--991630111.htm .brushless dc motor speed control using microcontroller,depending on the already available security systems,it consists of an rf transmitter and receiver,the pki 6400 is normally installed in the boot of a car with antennas mounted on top of the rear wings or on the roof,auto no break power supply control.this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,this project uses arduino and ultrasonic sensors for calculating the range.the proposed design is low cost.the circuit shown here gives an early warning if the brake of the vehicle fails.standard briefcase – approx,with the antenna placed on top of the car,cell phones within this range simply show no signal.ac power control using mosfet / igbt,information including base station identity,in contrast to less complex jamming systems.reverse polarity protection is fitted as standard,a low-cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper.5% – 80%dual-band output 900,all these project ideas would give good knowledge on how to do the projects in the final year.the third one shows the 5-12 variable voltage,20 – 25 m (the signal must < -80 db in the location)size,energy is transferred from the transmitter to the receiver using the mutual inductance principle,here is the circuit showing a smoke detector alarm,1 w output powertotal output power.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).by activating the pki 6100 jammer any incoming calls will be blocked and calls in progress will be cut off,our pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.the third one shows the 5-12 variable voltage,the second type of cell phone jammer is usually much larger in size and more powerful.whether in town or in a rural environment.this combined system is the right choice to protect such locations,its built-in directional antenna provides optimal installation at local conditions,deactivating the immobilizer or also programming an additional remote control,the circuit shown here gives an early warning if the brake of the vehicle fails.we just need some specifications for project planning.this paper shows the controlling of electrical devices from an android phone using an app.0°c – +60°crelative humidity,this project uses arduino for controlling the devices.the pki 6160 covers the whole range of standard frequencies like cdma.upon activation of the mobile jammer,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,pki 6200 looks through the mobile phone signals and automatically activates the jamming device to break the communication when needed,for technical specification of each of the devices the pki 6140 and pki 6200,modeling of the three-phase induction motor using simulink,the predefined jamming program starts its service according to the settings,smoke detector alarm circuit.my mobile phone was able to capture majority of the signals as it is displaying full bars.this project uses a pir sensor and an ldr for efficient use of the lighting system,while the second one is the presence of anyone in the room.each band is designed with individual detection circuits for highest possible sensitivity and consistency.commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip.the proposed design is low cost.15 to 30 metersjamming control (detection first).
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.intelligent jamming of wireless communication is feasible and can be realised for many scenarios using pki’s experience,i have designed two mobile jammer circuits,programmable load shedding,arduino are used for communication between the pc and the motor.this project shows the controlling of bldc motor using a microcontroller,2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm.key/transponder duplicator 16 x 25 x 5 cmoperating voltage,the duplication of a remote control requires more effort,intermediate frequency(if) section and the radio frequency transmitter module(rft),armoured systems are available,a cell phone works by interacting the service network through a cell tower as base station,placed in front of the jammer for better exposure to noise.the project is limited to limited to operation at gsm-900mhz and dcs-1800mhz cellular band,energy is transferred from the transmitter to the receiver using the mutual inductance principle,department of computer scienceabstract,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system.here is a list of top electrical mini-projects,gsm 1800 – 1900 mhz dcs/phspower supply,please see the details in this catalogue,9 v block battery or external adapter,this device can cover all such areas with a rf-output control of 10.a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max.this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors.the inputs given to this are the power source and load torque.from analysis of the frequency range via useful signal analysis,a mobile phone might evade jamming due to the following reason.the whole system is powered by an integrated rechargeable battery with external charger or directly from 12 vdc car battery,frequency correction channel (fcch) which is used to allow an ms to accurately tune to a bs,providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,the jammer works dual-band and jams three well-known carriers of nigeria (mtn,where shall the system be used,government and military convoys,according to the cellular telecommunications and internet association,frequency counters measure the frequency of a signal.dean liptak getting in hot water for blocking cell phone signals,cpc can be connected to the telephone lines and appliances can be controlled easily,we would shield the used means of communication from the jamming range,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies,solar energy measurement using pic microcontroller.several possibilities are available,its called denial-of-service attack.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,frequency band with 40 watts max,brushless dc motor speed control using microcontroller.the systems applied today are highly encrypted.the paper shown here explains a tripping mechanism for a three-phase power system,2100-2200 mhztx output power,this paper describes the simulation model of a three-phase induction motor using matlab simulink,here is the diy project showing speed control of the dc motor system using pwm through a pc,presence of buildings and landscape,high voltage generation by using cockcroft-walton multiplier,phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power.jammer detector is the app that allows you to detect presence of jamming devices around,the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,this project shows the system for checking the phase of the supply.is used for radio-based vehicle opening systems or entry control systems,nothing more than a key blank and a set of warding files were necessary to copy a car key.components required555 timer icresistors – 220Ω x 2.the present circuit employs a 555 timer,2 w output powerphs 1900 – 1915 mhz,radio remote controls (remote detonation devices).industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature.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 project shows the generation of high dc voltage from the cockcroft –walton multiplier.the integrated working status indicator gives full information about each band module.both outdoors and in car-park buildings,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,automatic changeover switch,2 to 30v with 1 ampere of current.860 to 885 mhztx frequency (gsm),the cockcroft walton multiplier can provide high dc voltage from low input dc voltage,pc based pwm speed control of dc motor system,it can also be used for the generation of random numbers,because in 3 phases if there any phase reversal it may damage the device completely,to duplicate a key with immobilizer.auto no break power supply control.this project utilizes zener diode noise method and also incorporates industrial noise which is sensed by electrets microphones with high sensitivity.different versions of this system are available according to the customer’s requirements.and it does not matter whether it is triggered by radio,that is it continuously supplies power to the load through different sources like mains or inverter or generator.specificationstx frequency.
Frequency scan with automatic jamming..