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Auto Dim Setting
Menu Option
Bright
time
Add 15 min to
starting time
Press VOL+
Press Menu to
Bright
level
Select Bright,
Dim, Dimmer
Dim
time
Dim
level
Select Bright,
Dim, Dimmer,
Dark, Off
Press Menu
Press VOL+
Press VOL+
Add 15 min to
starting time
Press VOL+
Backlight
Menu Option
Press Menu to
Press Menu to
Press Menu to
Mode:
Time
Press VOL+
AUTO MUTE/AUTO MUTE VOLUME
When the R4 detects a signal, it sounds an alarm at the current volume level. To
make the alarm quieter, turn Auto Mute on through the menus (see page 22). This
will reduce the volume to the level set (0 - 7) in the
Auto Mute Volume
menu (see
page 22).
If the current volume level is 0, the R4 will not change the volume to the Auto Mute
Volume level; it will keep the volume level at 0.
Auto Mute ends 10 seconds after the alarm ends unless:
• The same signal is detected within that 10 second period; then, Auto Mute stays
on.
• A different band signal is detected during that 10 second period; then, Auto Mute
turns off and then back on at the current volume level.
Auto Mute does not apply to Laser Alert.
BLOCK BLIND SPOT MONITOR SYSTEMS
Some vehicles come equipped with Blind Spot Monitors (BSM). These systems send
out limited range K signals that alert the driver to other vehicles that come within
that range. Your R4 can pick up those signals from other vehicles and keep alerting