Cobra XRS 747 Operating Instructions Manual page 8

Settings
Your Detector
What To Remember While Using IntelliMute
IntelliMute works with both City and Auto Mute modes.
Whenever your engine revs are below the activation point,
the dot next to the large character on the right side of the display
will remain lit. Above the activation point, the dot will blink twice
every two (2) seconds.
Below Activation Point Above Activation Point
L L
X K Ka V S X K Ka V S
If, for any reason, the unit stops sensing your engine's revs,
IntelliMute will indicate an error and automatically turn Off.
The rev point you set will be stored in the unit's memory when
power is turned Off and recalled each time the power is turned On.
NOTE
The rev point must be reset if you use your detector in a different vehicle.
NOTE
When initially choosing your IntelliMute activation point, a setting
of approximately 300 to 600 RPMs above idle is recommended.
You can reset the activation point at any time to fit your individual
preferences and driving style.
Setting The IntelliMute Activation Point
Your detector must be installed in your vehicle.
CAUTION
Do not attempt to set the rev point while driving.
Your vehicle should be parked and idling.
IntelliMute must be turned On before setting the activation point. Depending
on whether the unit is in Tone Alert or Voice Alert mode, you will hear a
series of beeps or voice messages as you follow the steps on page 11.
10 English
Settings
Your Detector
IntelliMute Button
Press and hold for
two (2) seconds
To Set The IntelliMute Activation Point
Press and hold Tone
the IntelliMute
Two (2) beeps
button for two
(2) seconds.
Rev your engine to None
the level you wish
to set (recommend
slightly above idle)
and hold revs steady
for two (2) seconds.
At the desired Three (3) beeps
rev level, press
and release the
IntelliMute
button.
NOTE
If the unit is unable to sense usable pulses within three (3)
seconds or if you do not set a rev point within 20 seconds
of beginning these steps, IntelliMute will indicate an error
and automatically turn Off.
Tone
Four (4) beeps
Voice Visual Display
Set Engine Revs None
None Three (3) bars will
flash in succession
1 2 3
IntelliMute Set All three (3) bars
flash three (3) times
1 2 3
Voice Visual Display
IntelliMute Error, E appears
followed by
IntelliMute Off
E
X K Ka V S
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