Directional coupler is something like a snifer – how much power is transferred from Port1 to Port2.Continue reading What is this and how to design pcb directional coupler
In my electronics live I had a lot of situations when I can’t open device.
Why? Because people didn’t see difference:
Look and remember.
In this part I added block schematic and electric schematics
This project can show how strong is electromagnetic field in your place. In Polish norms and documents I saw that the maximum power from GSM Base Telecomunication Stations is 2 Watts EIRP. In first part of article I will show you fundamentals about this electronics project.