FPV Flight Testing with DL OSD and FY-20A Flight stabilization. These were my first flights with these components. The FY-20A was easy. The DL OSD more difficult because the wiring they explain in the manual only works for some. For others, you have ground loop issues and you need to hunt down the source of the feedback. This is where I am today.. need to tweak. You see some banding when the DLOSD comes on. The first three minutes or so are strraight from the GoPro HD shot in mode 5.