I read an article some time a go and as I remember, it seemed to imply that it was pointless doing a range check with a failsafe setup as this would override the weak / bad signals being received !!

Is this true ?

What is the best method for a fail safe set up to be range checked ??

I tend to stick to MPX IPD (standard and dual conversion)receivers - but also use others - would there be different methods for range checking?

Guess this is a good one for you Harry C!

Set throttle failsafe to idle.

Secure the model, throttle up and walk away. When the engine goes quiet, you are out of range. Walk back until the engine is making noise again and you are in range.

Or set the transmitter down (or get someone to hold it) with the throttle up and walk off with the model. You don't need the engine running unless you want to test it that way. When you hear the servo close the throttle, you're at the limit of your range test.

You can also do the engine off range check by programming the elevators full up, rudder full left or right, and ailerons full left or right. If the model is big enough, you can usually see the elevator and rudder deflect when you hit the end of your range. If the model is smaller, have a person watch for full up elevator and give you a signal.

Don't forget to reset your failsafe before flying.

The person that says its pointless to range check with failsafe on probably assumes its hold mode and not failsafe. Even if failsafe is programed to hold mode, you can still range check it.

Walk away while constantly wiggling the sticks to full extremes. When the surfaces stop wiggling, you are at the end of the range. Again, you might need to another person to watch for the servos starting to act sluggish and then stop.