Optimus MI Series Installation And Operating Instructions Manual page 42

 SCAN: Channel scan
This means the function is
SC oFF
deactivated.
This means the function is
activated. (Scan to make sure
this channel is occupied or not)
SC on
the program will avoid it
automatically to prevent
interference.
Note: this function works only in the Preset mode.
(Default ON)
 ATT: Audio output attenuation (XLR)
No attenuation at audio output
At oFF
20 dB attenuation at audio
At on
output
(Default ON)
 SQ: Receiving sensitivity
-5 is the maximum sensitivity.
-5~+10 dB;
Select SQ
+10 is the minimum sensitivity.
with ▲/▼
The default setting is 0.
(Default 0)
WHEN TX TRANSMITTER IS SELECTED:
Press "SET" to move through the menus and ▲ / ▼ to change the parameters. After any change
the unit will return to standby screen.
 ATT: Microphone audio input attenuation
At oFF
No attenuation at audio input
20 dB attenuation at audio
input (depending on whether
At on
the transmitter is provided with
the corresponding function).
(Default OFF)
MI SERIES Version 1.2
MI Series
This function is deactivated.
This function is deactivated.
It shows the SQ is now at -5 dB.
This function is activated with 20 dB of
audio input attenuation
Wireless system
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