Hi,
If anyone can help me, or explain this, I'd appreciate it. I normally like to understand what I am doing, but on this occasion, I just don't. But I found several different Youtuibes and Diagrams that all used trhe same I.C. But it just does not make sense to me.
I am building a mobile phone detector. I have ordered some parts, based on some web-based reserach I have done. So too late to change. But the parts cost pennies so it's just my time I am potentially wasting.
If mobile phones operate at about 0.8 GHZ to 3.4 GHZ, then I'd expect to build soemthing with a receiver that is a tuned circuit, or several different tuned circuits, but operating at those frequencies. But the I.C. everyone seems to be using is the LM386, which is an audio amp? I just don't understand it?
I want to detect a mobile phone in "idle", i.e. even when it is not actively mbeing used.
I attached my roiugh working notes which include a couple jpeg diagrams that I am using as references.
Any help appreciated, I am building it anyway. But if anyone has a better solution, or any guidance, I'd be pleased to be educated. Thanks, Mike
