(2012) UBEC ripple test
When choosing equipment for a FPV-setup, one of the important things is a good
and stable power-supply.
One of the most used regulators for 5-volt equipment is the Turnigy 5A ubec.
For a 12-volt FPV-setup, I would personally choose a step-up/step-down converter to be able to keep a stable 12-volt supply, even if the battery drops below 12-volt.
step-up/step-down (SEPIC) converter