logging in or signing up how jammer works? khadir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2160 Category: Education License: All Rights Reserved Like it (10) Dislike it (2) Added: August 28, 2010 This Presentation is Public Favorites: 3 Presentation Description jammer working and description Comments Posting comment... By: geenie (7 month(s) ago) How does a cell phone jammer work? I hit upon a website which sells a lot of jamming devices and signal boosters, it seems is espow.com ,and the items look great. I wonder whether it is worth buying it. http://www.espow.com/jammers/security-surveillance-jammer.ht.. Saving..... Post Reply Close Saving..... Edit Comment Close By: geenie (7 month(s) ago) really cool post for us.Cell phone jammers are inexpensive and should be implemented in prison. This would require a change in laws allowing such devices. The benefits are well worth it. more related info you can visit http://www.espow.com/jammers/security-surveillance-jammer.html Saving..... Post Reply Close Saving..... Edit Comment Close By: adego0855 (8 month(s) ago) Cool post as for me. I’d like to read something more concerning cell phone jammer http://www.jammerall.com/ . Saving..... Post Reply Close Saving..... Edit Comment Close By: akpanda1990 (9 month(s) ago) plz send this ppt to my email id its urgent ..my id is atulpanda4u@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: umaramsai (11 month(s) ago) please send this ppt to my email id its very urgent my id is umaram13@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript SRI INDU PG COLLEGE : SRI INDU PG COLLEGE APPLICATION SOFTWARE IN CELL PHONE JAMMER CONTENTS : CONTENTS What is Application software ? What is Jammer ? Size of Jammer. Why Jammers are used ? How Jammer works? What inside the Jammer ? Applications of Jammer. Cell phone Jamming Legal issues. Conclusion. Application Software : Application Software Application software is a computer program that functions and is operated by means of a computer, with the purpose of supporting or improving the software user's work. In other words, it is the subclass of computer software that employs the capabilities of a computer directly and thoroughly to a task that the user wishes to perform. application software used in cell phone JAMMER. What is a Jammer? : What is a Jammer? Cell phone jammers are devices that create a temporary "dead zone" to all cell phone traffic in their air system. A cell phone jammer is an instrument used to prevent cellular phones and their mobile signals to a base station. When used, the jammer effectively disables cellular phones in the area. Other types of jammers -radar jammer and radio jammer Size of a Jammer : Size of a Jammer Some cell-phone jammers are made to look like actual phones. Others are briefcase-sized or larger. The biggest jammers used by police and the military can be mounted in vehicles for convoy security. Slide 6: Why Jammers are used? Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists. Examples include: security zones public transport,classrooms,temples,tv & radio stations,jails,govt.buildings,military bases, industries etc. How jammer works? : How jammer works? A jamming device transmits - same radio frequencies as the cell phone, the communication between the phone and the cell-phone base station in the tower. It's a called a denial-of-service attack. conti.. Slide 8: Jammers block cell phone use by sending out radio waves along the same frequencies that cellular phones use at a high enough power that the two signals collide and cancel each other out. This causes interference with communication of cell phones and towers to render the phones unusable.On most phones, the network would be out of range. How jammer works? Whats inside the Jammer? : Whats inside the Jammer? Antenna: Every jamming - antenna to send the signal. Some are contained within an electrical cabinet. On stronger devices, antennas are external to provide longer range and may be tuned for individual frequencies. Power supplySmaller jamming - battery operated. Some look like cell phone and use cell-phone batteries. Stronger devices - plugged into a standard outlet or wired into a vehicle's electrical system. Whats inside the Jammer? : Whats inside the Jammer? CircuitryThe main electronic components of a jammer are: Voltage-controlled oscillator - Generates the radio signal - interfere with the cell phone signal. Tuning circuit - Controls the frequency at which the jammer broadcasts its signal by sending a particular voltage to the oscillator. Noise generator - Produces random electronic output in a specified frequency range to jam the cell-phone network signal. RF amplification (gain stage) - Boosts the power of the radio frequency output to high enough levels to jam a signal. Applications : Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists It has been widely reported that a cell-phone jammer thwarted an assassination attempt on Pakistani President Musharraf in December 2003. Used in areas where radio transmissions are dangerous, such as areas with a potentially explosive atmosphere, such as chemical storage facilities or grain elevators. Applications Legal Issues : Legal Issues In the United States, United Kingdom, Australia and many other countries, blocking cell-phone services (as well as any other electronic transmissions) is against the law.. Jamming is seen as property theft, because a private company purchased the rights to the radio spectrum, and jamming a signal could block the call of a babysitter frantically trying to contact a parent or a some one trying to call for an ambulance. In most countries, it is illegal for private citizens to jam cell-phone transmission. Conclusion : Conclusion Every technology has good aspect as well as bad aspect the important thing is ,how we are using it. Cell phone jammers are very useful to the society from the anti-social elements. We can save our national leaders. we can restrict the communication network between the anti-social elements by using the cell phone jammers. Cell phone jammers prevent the students from carrying cell phones to the colleges. Slide 14: ANY QUERIES Slide 15: From , SHAIK. KHADIR VALI THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
how jammer works? khadir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2160 Category: Education License: All Rights Reserved Like it (10) Dislike it (2) Added: August 28, 2010 This Presentation is Public Favorites: 3 Presentation Description jammer working and description Comments Posting comment... By: geenie (7 month(s) ago) How does a cell phone jammer work? I hit upon a website which sells a lot of jamming devices and signal boosters, it seems is espow.com ,and the items look great. I wonder whether it is worth buying it. http://www.espow.com/jammers/security-surveillance-jammer.ht.. Saving..... Post Reply Close Saving..... Edit Comment Close By: geenie (7 month(s) ago) really cool post for us.Cell phone jammers are inexpensive and should be implemented in prison. This would require a change in laws allowing such devices. The benefits are well worth it. more related info you can visit http://www.espow.com/jammers/security-surveillance-jammer.html Saving..... Post Reply Close Saving..... Edit Comment Close By: adego0855 (8 month(s) ago) Cool post as for me. I’d like to read something more concerning cell phone jammer http://www.jammerall.com/ . Saving..... Post Reply Close Saving..... Edit Comment Close By: akpanda1990 (9 month(s) ago) plz send this ppt to my email id its urgent ..my id is atulpanda4u@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: umaramsai (11 month(s) ago) please send this ppt to my email id its very urgent my id is umaram13@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript SRI INDU PG COLLEGE : SRI INDU PG COLLEGE APPLICATION SOFTWARE IN CELL PHONE JAMMER CONTENTS : CONTENTS What is Application software ? What is Jammer ? Size of Jammer. Why Jammers are used ? How Jammer works? What inside the Jammer ? Applications of Jammer. Cell phone Jamming Legal issues. Conclusion. Application Software : Application Software Application software is a computer program that functions and is operated by means of a computer, with the purpose of supporting or improving the software user's work. In other words, it is the subclass of computer software that employs the capabilities of a computer directly and thoroughly to a task that the user wishes to perform. application software used in cell phone JAMMER. What is a Jammer? : What is a Jammer? Cell phone jammers are devices that create a temporary "dead zone" to all cell phone traffic in their air system. A cell phone jammer is an instrument used to prevent cellular phones and their mobile signals to a base station. When used, the jammer effectively disables cellular phones in the area. Other types of jammers -radar jammer and radio jammer Size of a Jammer : Size of a Jammer Some cell-phone jammers are made to look like actual phones. Others are briefcase-sized or larger. The biggest jammers used by police and the military can be mounted in vehicles for convoy security. Slide 6: Why Jammers are used? Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists. Examples include: security zones public transport,classrooms,temples,tv & radio stations,jails,govt.buildings,military bases, industries etc. How jammer works? : How jammer works? A jamming device transmits - same radio frequencies as the cell phone, the communication between the phone and the cell-phone base station in the tower. It's a called a denial-of-service attack. conti.. Slide 8: Jammers block cell phone use by sending out radio waves along the same frequencies that cellular phones use at a high enough power that the two signals collide and cancel each other out. This causes interference with communication of cell phones and towers to render the phones unusable.On most phones, the network would be out of range. How jammer works? Whats inside the Jammer? : Whats inside the Jammer? Antenna: Every jamming - antenna to send the signal. Some are contained within an electrical cabinet. On stronger devices, antennas are external to provide longer range and may be tuned for individual frequencies. Power supplySmaller jamming - battery operated. Some look like cell phone and use cell-phone batteries. Stronger devices - plugged into a standard outlet or wired into a vehicle's electrical system. Whats inside the Jammer? : Whats inside the Jammer? CircuitryThe main electronic components of a jammer are: Voltage-controlled oscillator - Generates the radio signal - interfere with the cell phone signal. Tuning circuit - Controls the frequency at which the jammer broadcasts its signal by sending a particular voltage to the oscillator. Noise generator - Produces random electronic output in a specified frequency range to jam the cell-phone network signal. RF amplification (gain stage) - Boosts the power of the radio frequency output to high enough levels to jam a signal. Applications : Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists It has been widely reported that a cell-phone jammer thwarted an assassination attempt on Pakistani President Musharraf in December 2003. Used in areas where radio transmissions are dangerous, such as areas with a potentially explosive atmosphere, such as chemical storage facilities or grain elevators. Applications Legal Issues : Legal Issues In the United States, United Kingdom, Australia and many other countries, blocking cell-phone services (as well as any other electronic transmissions) is against the law.. Jamming is seen as property theft, because a private company purchased the rights to the radio spectrum, and jamming a signal could block the call of a babysitter frantically trying to contact a parent or a some one trying to call for an ambulance. In most countries, it is illegal for private citizens to jam cell-phone transmission. Conclusion : Conclusion Every technology has good aspect as well as bad aspect the important thing is ,how we are using it. Cell phone jammers are very useful to the society from the anti-social elements. We can save our national leaders. we can restrict the communication network between the anti-social elements by using the cell phone jammers. Cell phone jammers prevent the students from carrying cell phones to the colleges. Slide 14: ANY QUERIES Slide 15: From , SHAIK. KHADIR VALI THANK YOU