john smith wrote:
Newps wrote:

How is that a factor?


If the DME antenna is at the end of the runway farthest from you on a
long runway, the distance is greater.

The controller will give a distance from a fix, almost always the OM or
the FAF. It isn't relavant where the DME is actually located or how
long the runway is, you still have to do some math to figure out how far
you are from whatever the referenced fix is.