Futaba GV-1 - Manual (Page 33)

FUNCTIONS
Speed display mode Disp
The speed display mode can be changed. Engine speed display (Eng) or rotor
speed display (Rot) can be selected.
(Mode switching)
1
The display is switched each time
the DATA+ or DATA- key is
pressed.
(Initial value) Rot
Rotor gear ratio GRt
This function inputs the gear ratio between the main rotor and the engine to
display the rotor speed.
(Input method)
1
Input the gear ratio by pressing
the DATA+ key (increase) or
DATA- key (decrease).
(Setting range) 3.00~15.00 in 1/100 steps
(Initial value) 9.70