05
Using the mic
LCT 640
User-interface
②
Polar pattern indications
①
Status indicator
③
Noiseless polar pattern push button
④
Attenuation indications
⑦
Noiseless high-pass
filter push button
⑤
Noiseless attenuation push button
⑥
High-pass filter indications
Status indicator
①
·
The microphone is in normal working mode if the status indicator
is illuminated in white.
·
The microphone is in key-lock mode if the status indicator is not
illuminated.
·
The microphone experiences clipping due to high SPL if the
status indicator flashes in red.
·
The microphone is in automatic attenuation mode if the status
indicator is illuminated in red.
·
The microphone indicates the clipping history if the status
indicator flashes red and white in an alternating sequence.
Polar pattern indications
②
·
The currently active polar pattern setting is illuminated.
Setting the polar pattern
·
Five different directivity characteristics omnidirectional, broad
cardioid, cardioid, supercardioid, figure-8 can be set by briefly
pressing the polar pattern push button
③
.
–
–
Setting an attenuation level
·
⑤
Attenuation levels can be set by briefly pressing the attenuation
push button
. Settings are: off, -6 dB, -12 dB and -18 dB.
Attenuation is used in extremely high SPL environments in order
to prevent clipping of the microphone, mixer and other audio
equipment.
Attenuation indications
④
·
The currently active attenuation setting is illuminated.
