The same pair already sits in the status bar, where it is 10px and several
operators reported not being able to read it. Repeated under the compass at a
size that can be read across a shack.
Clickable, like the ones in the status bar: a heading you can see and not act
on would be a step backwards from what is already there. Disabled and dashed
when no station is entered, rather than showing a heading to nowhere.