I encountered some issues when trying to create my own FM radio after downloading pifm. Indeed after plugging my own designed antenna, writing on my pi's terminal:
sudo ./pifm sound.wav 100.0
I used a Raspberry 2 V1.1.
After setting two radios on this fm wavelength, I don't get the Star Wars soundtrack on them. Can you help me fix this issue?
I don't think it is an antenna issue as far as I have read that even without antenna it does work. Anyway, here is a picture of its extremity wired to the RPi.
I live in France in a big city.
Here is a picture of the wiring between the foot of the antenna and the component that goes to the 4th pin of the Raspberry.
And here is a picture of my actual wiring between the component and the 4th pin:
I followed this tutorial