David Clark 40992G-01, Руководство пользователя

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19541P ‐ 39 (02 ‐ 11)
Figure 3: Wearing the Headset
VOX (Voice Activation)
The U9910 ‐ BSW has an innovative voice activation (VOX) system. VOX is intended to prevent
background noise from being unintentionally picked up by the microphone while detecting and
allowing voice communications. The VOX knob (see Figure 1 ) controls the threshold at which the
mic becomes “hot”. When the mic is hot you will hear your own voice and other connected users
will hear you as well. Pressing the PTT button will automatically make the microphone “hot” for
as long as the PTT is held down, regardless of VOX setting.
VOX Basics
•
VOX knob fully clockwise (CW): Mic is off
•
VOX knob fully counter ‐ clockwise (CCW): Mic is “hot”
•
VOX knob in ‐ between full CW and full CCW: VOX enabled
VOX Adjustment Procedure
1. Ensure that the belt station is linked with a controller or gateway (LED flashing green).
2. Stand in the noisy environment where you will be using the system but do not speak.
3. Turn VOX knob fully counter ‐ clockwise. You will hear a continuous tone.
4. While continuing not to speak, slowly turn the VOX knob clockwise until the tone stops.
5. VOX is now optimally set for your environment.
The tone will stop automatically after 5 seconds of not changing the VOX knob position.
If you move to another location, you may wish to repeat the above procedure.
Tip:
•
Turning the VOX knob fully clockwise will turn off the microphone.
•
Conversely, turning the VOX knob fully counter ‐ clockwise will cause the microphone to
be “hot” all the time.