Seems like measuring something FTL with non-FTL equipment is going to be a problem.
It's easier than it sounds. Send a light signal down a path at the same time the >C signal flies down the same path. Measure the difference in arrival times. Light travels about a a foot per nanosecond (10E-9). Cheap lab equipment can easily measure down to a nanosecond. Of course, more bucks, more Buck Rogers.
Thank you, RAdm Grace Hopper. She handed out pieces of copper wire that were a nano-second long. But she never said whether that C was through free space or through copper. ;)
I still see problems with accurate measurement.
/johnny
In this experiment the light path is obstructed by the mass of the earth.