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Mobile Phone Detector for GSM, 3G and 4G devices

AviYuv

Nov 17, 2021
1
Joined
Nov 17, 2021
Messages
1
Hello! I'm doing this side project for a mobile phone detector. I went through many documentation, and built up various circuit but it doesn't work as it said.

Finally I was able to use this circuit diagram to produce the following assemble.
upload_2021-11-17_21-47-42.png

My Result:
upload_2021-11-17_21-48-18.png

But the circuit works only when it receives a 2G network signal and it have a very limited range approximately 1.4m. It can't detect consistent 3G and 4G signal.

I would love to have this circuit operational for all types of network: 2G, 3G, 4G.
Your help is very much appreciated.
 

bertus

Moderator
Nov 8, 2019
2,734
Joined
Nov 8, 2019
Messages
2,734
Hello,

The circuit is not selective and will respond to any strong RF signal.
There is no good RF detector in the circuit.
Also it is not wise to build a RF circuit on a breadboard.

Bertus
 
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