Movement shifts spectrum so theoretically it may require bigger guard bands and slightly different paperwork. OTOH, I doubt SpaceX allocated spectrum is tied to

Movement shifts spectrum so theoretically it may require bigger guard bands and slightly different paperwork. OTOH, I doubt SpaceX allocated spectrum is tied to a any particular location (as opposed to say - within country bounds), considering it's satellite communication. Starlink itself cares about positioning to avoid overcrowding and also any satellite tasking/scheduling/whatever.