5.3.8 Transmitter
You can use the Transmitter menu to configure transmitter-related settings such
as audible signals, battery warning threshold, contrast, etc.
The settings in this sub-menu only apply to the transmitter. They are not stored in the
respective active model memory on the SD card, but in a dedicated memory area.
Volume
The volume of audible signals can be configured and switched off in groups. For
system alarms, it is only possible to reduce the volume.
Battery alarm
Remaining operating time (time to empty) at which the device starts to issue
audible warnings.
Possible values: 20 to 60 minutes
Factory setting: 60 minutes
The alarm tone interval reduces with decreasing remaining operating time (time to
empty). To save power, the last 5 minutes are indicated by a shortened alarm tone.
Please note that several charge / discharge cycles are required before the
remaining operating time (time to empty) is displayed accurately.