Mobile Jammer_2

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Mobile Jammer_2

  1. 1. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeMobile JammerByRanavasiya Mehul10BIT047Department of Computer ScienceAhmedabadApril 14, 2013
  2. 2. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeContents1 Design Parameters/Specification of mobile jammer2 Block Diagram of Mobile Jammer3 Cell Phone Jammer Applications4 Alternatives to Cell Phone Jamming5 Ways to avoid a mobile phone jammer6 Bibliography
  3. 3. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeDesign Parameters/ Specification of mobile jammer :The frequency bandsDistance to be jammed (D)Jammingto-signal ratio (J/S)Power calculationsFree space loss
  4. 4. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeJamming-to-signal ratio (J/S)Figure: J/S RatioWhere:Pj = jammer powerPt = transmitter powerGjr = antenna gain from jammer to receiverGrj = antenna gain from receiver to JammerGtr = antenna gain from transmitter to receiverGrt = antenna gain from receiver to transmitterBr = communications receiver bandwidthBj = jamming transmitter bandwidthRtr = range between communications transmitter and receiverRjt = range between jammer and communications receiver
  5. 5. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeFACTORS that affect both CELLULAR PHONERECEPTION and JAMMING:Strength and location of the Cellular Base Station or TowerTerrain and TopologyWeather and Climactic ConditionsStructures, Building Characteristic
  6. 6. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeBlock Diagram of Mobile Jammer:Figure: Block Diagram
  7. 7. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativePower Supply:Figure: Power Supply
  8. 8. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeIF Section:Figure: IF Section
  9. 9. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeRF Section:Figure: RF Section
  10. 10. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeCell Phone Jammer Applications:To maintain the complete silence in library and lecture hall.To avoid fraud in examination hall.To avoid disturbance in class room.For, providing security in business conference, board ofdirectors rooms,seminars, etc.For providing calm and peaceful atmosphere in Hospitals.Church/Mosques/Cathedral/Temple/Religious establishment.
  11. 11. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications Alternative
  12. 12. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeCell Phone Jamming Legal Issues:Since these jammers actively broadcast radio signals, they may ormay not be legal to possess or operate based on the specific lawsof the area one is in.United States: Cell phone blocking devices are used by federalofficials under certain circumstances.Germany: illegal, but installation in jails has been proposed.India: legal, Government, Religious Places, Prisons andEducational Institutions use jammers.Pakistan: It’s illegal to operate a jammer without the N.O.C.from Ministry of Interior and Ministry of Telecom.
  13. 13. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeFuture scope of Jamming Technology:While the law clearly prohibits using a device to activelydisrupt a cell-phone signal, there are no rules against passivecell-phone blocking.Companies are working on devices that control a cell phonebut do not ”jam the signal.
  14. 14. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeWays to Avoid a Mobile Phone Jammer:Try making calls through internet.Download Skype on your mobile phone to make calls.Walk away.
  15. 15. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications AlternativeBibliography:http://electronics.howstuffworks.com/cell-phone-jammer.htmhttp://blog.jammer-store.com/2009/11/how-mobile-jammers-work/http://whatisacellphonejammer.comhttp://en.wikipedia.org/wikihttp://www.phantom.co.il
  16. 16. Design Parameters/Specification of mobile jammer Block Diagram of Mobile Jammer Cell Phone Jammer Applications Alternative

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