Firstly thank you for persevering with me on this problem! I seem to have a knack of confusing people.
Delta_G:
From what I understand from what you said earlier, you want either RxThro going HIGH or failSafe going HIGH to get you OUT of the do nothing loop. So you want to stay in the whole loop while BOTH RxThro reads LOW AND failSafe is false. If you use && then either one of them changing gets you out of that do nothing loop.
I want to wait until i see a pulse OR (if no pulse comes) then move on to the next loop when the interrupt happens. then if i have seen no pulse in the first loop then i was thinking it would then skip the second loop due to the Failsafe True?
cattledog:
What is the state of the RxThro pin when the transmitter is turned off?
When the Transmitter is turned off the receiver gives out nothing. Hence the reason i want a failsafe!