Question to freighter owners about travel

Hey all, so working towards getting my freighter, just got my farm set up. Just was thinking, I know you can move them around, but how would that work? Do you need a warp cell for the freighter as well as the ship? Or do they not move with you until you call upon them? Or is it a free jump, how far can they jump. Figured I'd try asking here as everyone seems to be willing to help answer questions. Thanks!