FUTABA 16SZ Instruction Manual page 59

Battery
Select the battery alarm voltage according to the
battery to be used.
Auto power off time setting
*When the time the transmitter is inactive reaches
the set time, the power is turned off automatically.
This time can be set up to 1 hour in 10 minutes
increments. The auto power off function can also
be deactivated.
*An audible alarm is sounded from 3 minutes
before auto power off. When a stick or switch is
operated, the alarm is cleared.
Range Check
The 'range check mode' reduces the transmission
range of the radio waves to allow for a ground
range check.
*The range check mode, when activated, will continue for
60 seconds unless the user exits this mode early. When the
progress bar reaches 60 second mark, the RF transmission
automatically returns to the normal operating power.
Refer to P.44
60 ＜ System menu ＞
Vibrator Types
Type 1
Type 2
Type 3
*When the low battery voltage setting is changed, it is changed for
every model in the transmitter. A unique voltage cannot be set for
each model. A change in the low battery voltage setting also does
not reset other data.
WARNING
Do not fly in the range check
mode.
*Since the range of the radio waves is
short, if the model is too far from the
transmitter, control will be lost and the
model will crash.
It isn't indicated in case
of manual setting.
Battery type change :
LiFe(2cells) → NiMH(5cells)
→ Manual setting
When choosing manual
setting, the numerical
value can be input.
It's dangerous to
set it manually in
the low voltage.