Quote Originally Posted by fozzy View Post

I grant you, the SI system is not completely foolproof (no system is), but the boxes are extremely reliable - orienteering events have shown this - the boxes are often out in all weathers for 24hrs+ and you have the possibility if it's required for "live tracking" via radio controls if required, or, as I've said before, I am sure the system could be developed whereby a marshal plugs his smartphone into the box and it immediately downloads an accurate count of the number of runners that have passed and even a list with times. Again, not foolproof, but quicker and easier than the alternatives in my opinion.
What happens if you can't get a signal?