15

Deactivate the stop watch

Push the 



 or the   key, the channel number is displayed.

VOX function 

(phonetic transmission)

This function permits to send without activating the transmit key: Voices/noises that hit the 

microphone thus switch on the transmitter of the radio set.

In order to avoid a permanent accidental activation of the radio set by environmental noises, the 

VOX function is only activated in a distance of up to approx. 30 cm. For this reason you should 

use 

an optional 

headset, if your hands are busy (e.g. during installation work

/

during cycling), but

if 

you want to wear the radio set on the belt. If you want to employ the radio set for baby sitting,

fix the 

headset near the child’s bed and position the radio set in appropriate distance (see below).

Adjust the sensitivity according to the environmental noises, so that the set switches from 

reception to transmission if your voice volume is appropriate. You can select between 4

 sensi-

tivity levels (step 4 = highest sensitivity).

Activate VOX

1. Push the   key eight times until 

VOX

 is displayed and 

OF

 is flashing.

2. Select the desired sensitivity level 1, 2, 3 or 4 by means of the keys 

s

 or 

t

3. Validate by means of the 

PTT

 or 



 key, the 

VOX

 is displayed.

Deactivate VOX

1. Push the   key eight times until the adjusted sensitivity level is flashing.

2. Select the 

OF 

by means of the 

s

 or 

t

 key.

3. Validate by means of the 

PTT

 or 



 key, the 

VOX

 is no longer displayed.

Baby sitting

Radio sets with VOX function can also be used for baby sitting. The baby set is activated by 

crying/calling and then transmits to the parents’ set.

Be sure to observe that the acoustic monitoring via radio set permits to ease the 

supervision of a child, however it can by no means substitute the personal supervision!

Activate the VOX function on the baby set (please see above) and adjust the highest sensitivity 

level (level 4). Fasten the headset (out of reaching area of the child) near the crib, ensure that it 

is not covered (e.g. by the blanket). Connect 

the 

headset to the radio set (MIC/SPK socket) and 

place the radio set in an upright position and a distance of approx. 1 m.