SRI MOBILE DETECTOR

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Introduction: 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.

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    4 Comments

    Awesome instructable! I have made the detector..but as I dont have goood knowledge regarding the ic's and transistors...can you please tell the detalied working of this detector?

    Thanks!

    The files are not compatible with my computer. Do you think you could upload them as a pdf please? Otherwise it's a really good instructable.

    Thanks!

    Great first instructable Sridhar :)

    This is my first instructable