Operation Manual

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 ashing.

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 ashing.

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.