James Hogan, Thrice Upon A Time. It's only a communications device, not a transportation device but it does consider the movement. The signal is sent to the s

James Hogan, Thrice Upon A Time. It's only a communications device, not a transportation device but it does consider the movement. The signal is sent to the same point in space where the machine currently is, the range limit is how far away from that point you can be and receive it.