I recently bought simple sweep spectrum analyzer, and now i can measure and tune all my antennas.
Moxon antenna i made was not so good tuned as expected, so I made another one.
Now it looks much better 🙂
This is first Moxon antenna I made. It looks like having 5db more gain then RMILEC SRC771 1/2 Wave Length Antenna (according my simple measurements).
As always my RF generator’s used to drive TX antenna, and Immersion RC power meter, connected to dipole antenna to measure signal level.
I made my biquad antenna i did some simple measurements to compare it to other antennas used for FPV.
It is very simple, I used Semi-rigid Flexible RG40 cable, inserted into small brass tube to make antenna tuning possible.