SRI MOBILE DETECTOR

Hi I am Sridhar,

This is my first instructable.

This is my mobile detector .

This mobile detector is used to prevent mobile phones in confidential rooms, exam halls, etc,. This mobile detector is used to find the mobile where it is not allowed & the mobile should be in the ON condition. This mobile detector is very useful & cheap . This mobile detector detects the RF transmission signal from the mobiles & this detects even mobile in silent mode.This mobile detector is used to find mobiles by incoming & outgoing calls , SMS , unauthorized video transaction .

Step 1: STEP1: COMPONENTS

Components are

1.CA3130 (IC)

2.Bread Board

3.Resistors at 1/4W

1M ohm-1

0.2M ohm-1

2.2M Ohm -1
1K Ohm -1

100K Ohm - 1

4.Capacitors

22 pf ceramic -3

0.22uf ceramic -1

0.1 uf polyester/ceramic -1

100uF/25V Electrolytic -1

5.Red LED -1
6.BC548 -1

7.Copper rod -1

Step 2: STEP2:CIRCUIT DIAGRAM

Circuit diagram in the document (doc2.docx)

And make the connection as per shown in circuit diagram.

Step 3: STEP3:FINAL VIEW

This is the final view of the circuit which is made by after connection.

Step 4: STEP4:OUTPUT

Verify before connecting battery.

Connect the battery.

This is the output when the signal comes out from mobile , it detects in fraction of seconds .

It detects the signal from mobile , when the mobile within the radius 2m .

When the signal comes from mobiles the LED blinks .

The LED blinks slowly when the mobile far from mobile detector.

And the LED blinks fastly when the mobile close to detector .

The above files are multisim files.