KEY
PRESS TO...
MUTE/
MUTE
DIM
MUTE on - Press MUTE/DIM to mute
an alarm. Returns to normal operation
10 seconds after the alert ends or if a
different band is detected during Mute
mode. Mute On displays for a few
seconds.
MUTE off - Press MUTE/DIM to restore
audible alarms before the 10 second
automatic mute time-out.
MUTE MEMORY
Save a Mute Location (Mute Memory) -
press MUTE/DIM again while Mute On
displays to save that GPS location and
frequency to memory. Mute Memory
displays on the screen.
R4BLK stores up to 1750 Mute Memory
points. The R4BLK shares 2,000 points
between Mute Memory and User Marks
as set in the Memory Quota menu.
Delete Mute Memory - Press MUTE/DIM
while Mute Memory displays; the R4BLK
displays a delete confirmation message.
Press MUTE/DIM again to confirm.
MUTE RED LIGHT CAMERA VOICE ALERT
Mute the voice alert for a red light camera
alarm. Press MUTE/DIM while the voice
alarm for a red light camera sounds. The
voice alarm mutes.
MUTE ALERTS FOR POI OVERSPEED ALERT
AND USER LIMIT SPEED
When
R4BLK
speed limit situation (an alarm sounds and
the alert displays), you can press MUTE/
DIM to silence that alarm.
alerts you to an overspeed or
- 8 -
PRESS AND HOLD TO ...
DIM - Changes the
display and key backlight
brightness:
Auto (Default). Set 2
automatic time periods
and brightness levels for
the OLED display (see page
22).
Bright
Dim
Dimmer
Dark (Dark is off unless
there is alert.)
Off (Off regardless of
whether or not there is
an alert.)
DURING RED LIGHT
CAMERA ALERT
Press and hold MUTE/
DIM to delete the red light
camera point.
RED LIGHT CAMERA POINT
DELETE
When
R4BLK alerts you
to a red light camera (the
alert displays), you can
press and hold MUTE/
DIM to delete that camera
point. After confirming
this deletion, R4BLK will
not give an alert for that
camera.