User's Manual

15
CAUTION
Do not »twist« the flexible gooseneck. Do not carry the headset by the gooseneck.
Use the microphone only with a windshield.
c. Adjust the flexible gooseneck by bending so that the microphone is located at a distance of approx.
5 mm (0.2 in.) in front your lips. Optimum voice transmission with the best possible noise
compensation is then provided.
4.3 Switching on, adjusting the speaker volume
Î NOTES
z
The Aircraft Interface must always be switched on before the Transmitter/Receiver Units.
z
On the Transmitter/Receiver Units the push-buttons 2,3,4 for connection setup and
connection release, placed in the middle of the push-button bank (Fig. 6/c), must not be
pressed until the Transmitter/Receiver Units are synchronized with the Aircraft Interface.
z
Always leave the Aircraft Interface and the Transmitter/Receiver Units switched on as long as
you work with the communication system so that immediate availability of the system is
provided.
a. First switch on the Aircraft Interface by means of the green push-button ON (Fig. 10/e). The control
lamp (Fig. 10/f) illuminates. If the Battery Pack voltage is too low the control lamp flashes and the
Battery Pack must be charged.
b. Switch on the Transmitter/Receiver Unit by means of the On/Off switch and volume control (rotary
knob Fig. 6/b).
After Switching on the connection synchronization between Transmitter/Receiver Unit and Aircraft
Interface is effected automatically.
Synchronization: A click is audible in the headset connected to the Transmitter/Receiver Unit
approximately 10 seconds after switching on. The synchronization procedure then begins, i.e. the
previously switched on Aircraft Interface seeks its Transmitter/Receiver Unit. This synchronization
procedure can last approx. 30 seconds. Upon completion of synchronization – i.e. the Aircraft
Interface has found its Transmitter/Receiver Unit – a high double-beep P-tone sounds in the
headset, indicating that the Transmitter/Receiver Unit and the Aircraft Interface are ready for
operation.
c. At the Transmitter/Receiver Unit set the On/Off switch and volume control (rotary knob Fig. 6/b) to
mid-position. Later, on voice reception, adjust the desired speaker volume for your headset. Do not
set the volume any higher than necessary.
d. Connection setup and release by the Transmitter/Receiver Units see sections 4.4...4.4.2.
4.4 Connection setup and release by the Transmitter/Receiver Unit(s)
4.4.1 Prerequisites
y Aircraft Interface and Transmitter/Receiver Unit(s) subscribed (sections 3...3.4)
y Aircraft Interface and Transmitter/Receiver Unit(s) switched on and synchronized (section 4.3)
4.4.2 Connection setup and release
Automatic connection setup after switching on
After the Aircraft Interface and the Transmitter/Receiver Unit(s) are switched on the connection
synchronization between the the Aircraft Interface and the Transmitter/Receiver Unit(s) is(are) effected
automatically. Subsequently communication is possible.
Connection release
Briefly press one of the push-buttons for connection setup and release in the middle of the push-button
bank (Fig. 6/c) at the Transmitter/Receiver Unit. The Transmitter/Receiver Unit is disconnected from the
Aircraft Interface. This procedure is acknowledged by a high beep P-tone in the headset connected to
the Transmitter/Receiver Unit.