Space-Time Coordinates can be wired directly into the Coordinate Programmer. If this is successfully completed, then the operator can be guaranteed of landing on the correct planet, however the specific location and arrival time still needs to be input. It takes a lot of skill to wire a set of coordinates into the programmer. Once done the TARDIS will automatically fly to those coordinates whenever the TARDIS dematerializes without first entering destination coordinates (such as when the emergency dematerialization switch is used or when the operator files a forward reference).
Though the coordinate override can be used to halt the TARDIS's journey for an indefinite period there is absolutely no way to alter wired-in coordinates once the journey has begun. The operator must finish travelling to the locked-in coordinates before attempting to remove or bypass the wired in coordinates. The only known alternative requires the use of the Emergency Unit to shift the TARDIS out of normal space and time and in to the Land of Fiction.
The following color code is used:
- Black: For information from the TV Series, including Dimensions in Time, and 1996 TV Movie.
- Blue: For information from the Novels and Audios including Target, Virgin, BCC, and Big Finish.
- Green: For information from 'licensed' reference sources such as the Technical Manual, Doctor Who Magazine, and the Role Playing Games.
- Red: For information from unofficial sources -The Faction Paradox series, behind the scenes interviews, author's speculation, and popular fan belief.
The TARDIS Technical Index is copyright Will B Swift.