SlideShare is now on Android. 15 million presentations at your fingertips.  Get the app

×
  • Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
 

MINI PROJECT ON CELLPHONE DETECTOR

by Working at student on May 18, 2013

  • 16,415 views

This handy, it can be used to prevent use of mobile phones in examination halls, confidential rooms and, etc. It is also useful for detecting the use of mobile phone for Spying and unauthorized video ...

This handy, it can be used to prevent use of mobile phones in examination halls, confidential rooms and, etc. It is also useful for detecting the use of mobile phone for Spying and unauthorized video transmission. The circuit can detect the incoming calls pocket-size mobile transmission detector or sniffer can sense the presence of an activated mobile cell phone from a distance of one and-a-half meters. So and also outgoing calls, SMS and video transmissions even if the mobile phone is kept in the silent mode. The moment the Bug detects RF transmission signal from an activated mobile phone, it starts sounding a beep alarm and the LED blinks. The alarm continues until the signal transmission ceases. The capacitor C3 should have a lead length of 18 mm with lead spacing of 8 mm. we have to carefully solder the capacitor in standing position with equal spacing of the leads. The response can be optimized by trimming the lead length of C3 for the desired frequency. We are using a short telescopic type antenna. The unit will give the warning indication if someone uses Mobile phone within a radius of 1.5 meters.

Statistics

Views

Total Views
16,415
Views on SlideShare
16,415
Embed Views
0

Actions

Likes
6
Downloads
539
Comments
3

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via SlideShare as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel

13 of 3 previous next Post a comment

  • jaison10 Dawn Jaison at Student Plz send me the pcb layout to dawnjaison@hotmail.com 3 weeks ago
    Are you sure you want to
    Your message goes here
    Processing…
  • jaison10 Dawn Jaison at Student Plz send me the pcb layout to dawnjaison@hotmail.com 3 weeks ago
    Are you sure you want to
    Your message goes here
    Processing…
  • lafunder lafunder Very appreciable....well done ! 3 months ago
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

MINI PROJECT ON CELLPHONE DETECTOR MINI PROJECT ON CELLPHONE DETECTOR Presentation Transcript