User's Manual

Trouble Shooting
E
43
Possible Cause
• Check the volume adjustment with
the MCW-D 50 Conference Software
• “Disable Manual Power Off”
function is activated
• Operating mode Push-To-Talk or
Voice activated is active
• Crash of the microcontroller inside
the microphone unit
• Microphone unit is not switched on
• Headphone is not connected
properly
• Check the volume adjustment with
the MCW-D 50 Conference Software
• Check the external loudspeakers
• Check the audio level
• Microphone unit is not within the
range of the control unit
• Check the antenna positioning and
the antenna cable
• Check the line of sight between
microphone unit and antenna
• Interferences caused by devices such
as Wireless LAN
Solution
• Increase the volume with the
MCW-D 50 Conference Software or
the Volume control of the
MCW-D 50 control unit
• Deactivate “Disable Manual Power
Off” function with the MCW-D 50
Conference Software
• Deactivate the operating mode
Push-To-Talk or Voice activated with
the MCW-D 50 Conference Software
• Switch off the microphone units via
the control unit by pressing the
Clear/Standby button more than 3
seconds.
• Switch off the control unit. The
microphone units will go off after
approx. 3 minutes.
• Press the counter-sunk Reset
button on the bottom of the micro-
phone unit.
• Switch on the microphone unit
• Connect the headphone properly
• Increase the volume with the
MCW-D 50 Conference Software or
with the volume control of the
MCW-D 50 control unit
• Correct the volume and position of
the loudspeaker
• Reduce the input level of the
control unit
• Reduce the distance between
control unit and microphone units
• If necessary use an antenna
amplifier
• Remove obstacles between micro-
phone units and antennae; do not
place any objects in front of the
antennae of the control unit
• Select another frequency band for
the RF module(s) with the MCW-D 50
Conference Software. Refer also to
chapter 8.1.
Problem
Loudspeaker of the microphone unit
does not work
Microphone unit cannot be switched
off
Documentation output does not work
Feedback
Interferences; noise
Short drop-outs
8.1 Simultaneous Operation of the MCW-D Discussion System and other 2.4 GHz Devices
(e.g. WLAN, Bluetooth)
8.1.1 Physical laws
Due to many physical laws it is not possible to guarantee a simultaneous interference-free operation of different devices using
the same frequency band. Radio devices operating in the same frequency band will always disturb each other (the function can
be disturbed as well).
For the use of UHF wireless microphones it is known that never 2 devices can be operated on the same frequency. The way
technology is at the moment, it is only possible to operate a certain number of compatible radio devices within a defined fre-
quency band.
This applies also to the 2.4 GHz-ISM band (2400 MHz - 2484 MHz). Due to digital transmission techniques and various transmis-
sion standards it is possible, but not recommended, to operate certain devices simultaneously within the same frequency band.