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1. Switching On, Synchronization, Adjusting the Speaker Volume

Communication circuit 1

Communication between the user of the base headset and a max. of two other users of standard

headsets within the headset frequency range. The standard headsets must have logged into the base

headset.

Communication circuit 2

Communication in connection with an additional radio set on the radio set channel. The radio set is

connected to the headset via the radio set adapter.

Commissioning and operation

Described below are only the differences relating to the additional radio set connection.

a. Insert the plug connection (Fig. 4/a). Connect the radio set adapter via the radio set plug (Fig. 4/c) to

the accessory connection of the radio set. Fasten the inline PTT button (Fig. 4/b) by means of the

clip on the rear side to a suitable place on your clothing. Switch on the radio set and adjust on the

radio set the basic volume for the headset. Take heed of the operating instructions for the radio set

issued by the radio set manufacturer. Switch on the headsets as per section 4.3, wait until the

standard headset has synchronized itself with the base headset and adjust the desired speaker

volume on the headsets.

b. Voice communication circuit 1: See sections 4.4...4.4.2.

c. Voice communication circuit 2: To transmit press the inline PTT button (Fig. 4/b), i.e. in order to

key the radio set transmitter. You can speak into the headset microphone as long as you keep the

key pressed. Upon releasing the key the radio set is back on standby/reception. A message that is

received via the radio set is audible only in the right-hand headset muff of the headset which is

connected to the radio set.

When you press the inline PTT button and speak into the headset microphone, the message

transmission path is dependent on the position of the microphone switch »Mic.–OFF–Mic.«

(Fig. 1/h).

Ÿ Microphone switch »Mic.–OFF–Mic.« in middle position »OFF«: The message is transmitted to

the radio set only

Ÿ Microphone switch »Mic.–OFF–Mic.« in key position »Mic.« or in the »fixed« switch position

»Mic.«: The message is transmitted to the radio set and to the headset or to the two headsets

with which an active connection setup exists.

Headset muffs for helmet fastening

The two headset muffs can be supplied without a head band for lateral fastening to a helmet. Different

fastening parts are available depending on the helmet type. Separate installation instructions are

available for fastening to the helmet, these being provided together with the delivery of the fastening

parts. Lay the connection cable between the two headset muffs in the helmet so that it causes no

annoyance. In addition you can also use the head strap that is provided with each headset (see

section 4.2).

If no noise protection is required for the activity, you can fold the two fastening arms with the headset

muffs outwards and away from the helmet.

Safekeeping – storage

Store the cleaned device in a clean, dry place at normal room temperature and in normal relative air

humidity.