Futaba 8UHFS, 8UHPS - Manual (Page 5)

2
movement of the sticks. If a servo operates abnormally, don’t attempt to fly until
you determine the cause of the problem.
Finally, before starting the engine, be sure to check that the transmitter
model memory is correct for the chosen model, and (for PCM receivers only)
that the fail safe system functions properly when the transmitter is shut off.
While you’re getting ready to fly, if you place your transmitter on the
ground, be sure that the wind won’t tip it over. If it is knocked over, the throttle
stick may be accidentally moved causing the engine to race.
Before taxiing, be sure to extend the transmitter antenna to its full length.
A collapsed antenna will reduce your flying range and cause a loss of control. It is a
good idea to avoid pointing the transmitter antenna directly at the model, since the
signal is weakest in that direction.
Don’t fly in the rain! Water or moisture may enter the transmitter through the
antenna or stick openings and cause erratic operation or loss of control. If you must
fly in wet weather during a contest, be sure to cover your transmitter with a plastic
bag or waterproof barrier.