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Channel selection
Turn the channel selection knob to set the desired channel. The radio unit
announces the current channel number.
Transmitting
To transmit a message press and hold the PTT button for the duration of your
message. Speak normally into the microphone and make sure that the unit is
positioned approx. 2.5 cm to 5 cm away from your mouth.
Receiving
After transmitting a message release the PTT button to receive messages via
your radio unit.
8.4.3 Other functions
The following functions can be programmed via the optional software.
Call
Press and hold the pre-programmed button „Call 1/Call 2“ to transmit the
stored DTMF/5-tone/HDC 2400
TM
code.
Emergency call
When the pre-programmed emergency call button is actuated, the radio unit
transmits an emergency call or an identification number (ENI, background
audio frequency to a partner or a system).
Possible button allocations are:
Activate emergency call
Cancel emergency call
Mode 1
Long press
Short press
Mode 2
Short press
Long press
Time alarm (lone worker mode)
The time alarm enables the user to conduct safety-critical lone work. Actuate
the pre-programmed button „Lone Worker“ to activate this mode. If the user
does not actuate any buttons within the preset time, the radio will emit a
warning tone. This warning tone can be cancelled by pressing any button,
otherwise the radio will revert to the emergency call mode after a brief time
interval and an emergency call will be transmitted.
Man-down alarm (dead man‘s switch)
The integrated man-down alarm enables the user to conduct safety-critical
lone work. Press the pre-programmed button „Man Down“ to activate this
function or programme the radio unit so that this function is activated when
the radio is switched on.
The radio unit will emit a warning sound within a predefined period of time if
it is located in a horizontal or inward-inclined position. If it maintains such a
status within a preset time, it will automatically change to the emergency call
mode. The radio unit must be brought back into a vertical position to shut off
the alarm.
Monitor/noise limiter OFF (squelch)
Press the pre-programmed button „Monitor“ to switch off the noise limiter and
press it again to switch it back on.
Scan
Press the pre-programmed button „Scan“. The scanning process starts from
the current channel and the channel number of the scan list increases. The
LED display flashes green in the scanning mode or it illuminates continuous-
ly when a signal or compatible signals are received on the channel. Press the
scan button again to switch off the scan mode.
Whisper mode
Press the whisper mode button („Whisper“) in order to be able to be clearly
understood when speaking quietly. Press the button again to switch off this
function.
Voice-operated transmission (VOX)
Press the pre-programmed VOX button to activate the VOX function. When
the VOX function is activated the user can transmit a message without kee-
ping the PTT button depressed (only possible directly on the unit).
Lease mode
In the lease mode the unit is only set for use during a certain period of time.
By pressing the pre-programmed lease button the unit specifies the remai-
ning time acoustically („1“,“2“, „3“, „4“, „5“). The lease time can be defined
via the software.
