Mobile Detector

Replies

• 

  Munguti

  A mobile detector which will detect mobile phones or have i misunderstood your question.
• 

  kum.bips

  Munguti

  A mobile detector which will detect mobile phones or have i misunderstood your question.

  yes you are right a mobile detector which will detect when the mobile is being used to call or recieve call or send or receive sms to avoid disturbance in public places like hospitals,offices, labs, temples,etc...
  if you have any circuit for that then plz send it to me
• 

  Munguti

  I have no circuit but from my knowledge of telecomms i presume that you should build a circuit to detect the uplink frequencies of the mobile system architecture in question. You do know the frequencies if you don't you can google them.
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  kashish0711

  Well I don't know how to do it but well, mobile phones have electro-magnetic flux flowing around them when they are receiving/making a call or sms, if you just wind a small coil and amplify the signal and attach it to an LED, whenever you will take that LED system near the phone in about a range 1 or 2 feet max, the LED will glow up. You might use the electricity produced to make audio signals also, but well havnt thought much on that. :\
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  Munguti

  Have you also noted that when you are getting a call and you are near a radio there is interference on the transmission. Maybe you could use this to your advantage, say build an ultra sensitive radio.
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  kashish0711

  yeah that's the radio frequencies creating disturbances but these only work when the phone is making/receiving a call or sms, and the project should be able to catch the phone in non-operating condition only. 😕
• 

  jhbalaji

  Therefore have a read here #-Link-Snipped-#
  
  and the circuit will be
  
• 

  harrystone

  I found a device on the market, but it's not a detector. If you use that device, it will shield your cell phone signal, you will not receive a call or call a number out.
• 

  kum.bips

  harrystone

  I found a device on the market, but it's not a detector. If you use that device, it will shield your cell phone signal, you will not receive a call or call a number out.

  can iget the circuit design of that jammer
• 

  piyushh

  kum.bips

  can iget the circuit design of that jammer

  i guess for that you dont need to have any circuit..simply you put your cell in a metal box, the EM signals cannot penetrate through metal
• 

  newlife

  u can read this projects
  #-Link-Snipped-#
  
  #-Link-Snipped-#
• 

  naaz

  hiii i too need this details and complete notes and circuit diagram on this can u help me admin
• 

  sankar3

  hi friends, which filter is used in cell after recieving the signals.. ie resistors, capacitors are not work as proper in Ghz frequency range then which is used for it