Design and function
FT4 / FT5 control elements
16
FT4 / FT5 control elements
Legend (Section 1 of 4)
No. Designation
Function
1
Volume/Group call
Setting of volume, selection of a group, disabling of
rotary switch.
The following functions are possible:
Press the button briefly to change between volume
setting and group selection.
Turn the control knob for setting the volume or select-
ing the desired group.
Press the control knob briefly to confirm the selected
group. This function can be parametrised by means
of the TETRA Configurator. Caution, risk of accidental
operation.
Long press the control knob to disable or re-enable its
function as a rotary switch.
Note: The volume setting for an individual half-duplex
and full duplex call can only be set individually for the
respective call type. The earpiece volume for a full
duplex call can only be set during a call.
2
Alarm
If the radio set is logged into the personal emergency
signal centre:
Triggering of a personal alarm (will-dependent alarm).
Decide for yourself if you wish to trigger Alarm 1 or
Alarm 2:
Alarm 1: Press key for more than 1 second.
Alarm 2: Press key briefly three times.
If the radio set is not logged in at the personal emer-
gency signal control centre:
Triggering a TETRA emergency call: Long press the
button to trigger the TETRA emergency call.
