ElectroSchematics.com said:
This handy cell phone detector, pocket-size mobile transmission detector or sniffer can sense the presence of an activated mobile cellphone from a distance of one and-a-half metres. So it can be used to prevent use of mobile phones in examination halls, confidential rooms, etc. It is also useful for detecting the use of mobile phone for spying and unauthorised video transmission.The circuit can detect both the incoming and outgoing calls, SMS and video transmission 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…
plz mr i need your help badly plz help me
i do your ciriut but not work with me and i should to introduce to my dr in university after two days
plz canyou help
send to me pcb layout and all information about it
also what information about battery 12 v
what it`s ampare value ????
and antena plz help me
thnax
Mahmoud.Gaber