Re: Testing antenna configurations?
IIRC, that only applies for a STATIONARY antenna. These will be MOVING in orbits what may not be terribly precise. No to mention the need to transmit through a fickle atmosphere.
Put it this way. Even GPS has its bad days simply because their orbits can drift just so due to mechanics and the atmosphere can play havoc with their signals. That's why even on a good day your location fix has a tendency to wobble.