I do not know much about antenna's. A wire broke off of a Wifi antenna, being part of a video transmission unit of a quadcopter.
The short grey colored wire on the right side of the picture broke off. I simply tried soldering it back on. But that does not seem to work. The range of the antenna now is not even 2 meters. The thick shrinkwrapped black part of the antenna is a holow metal tube.
I assume that the center of the antenna is going through the tube, while the outside of the antenna should be attached to the tube. But this is just a guess of mine, I have not much knowlegde about antennas.
The black antenna wire is so small that I can not see a distinct core or shield. Is this a coaxial wire? How should it be attached to the metal tube? In other words: How could I fix this antenna?