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MENU ITEM
FUNCTION
SETTINGS
DB Ver
(If GPS on)
Displays the latest database
version.
NA
Exit
Closes the Menu system.
NA
BASIC OPERATIONS
HOW DO I ...?
TRY THIS...
Turn on the R4
Be sure the unit is connected to power and then press
POWER
. The unit turns on and runs through an initial
self-check if Self Test is turned on. It displays the
different bands and their settings.
The R4 turns on automatically when you start the
vehicle.
Adjust the volume
Press
VOL +
to increase volume. The unit beeps and
displays a number increase.
Press
VOL –
to decrease volume. The unit beeps and
displays a number decrease.
Mute alarm audio during
the alert
Press
MUTE/DIM
during an audio alarm to mute it.
(This is especially useful in situations where the alert
may be prolonged, such as at red lights.) You can also
press the
MUTE
button on the power cord.
Change the screen’s
brightness
Press and hold
MUTE/DIM
. The R4 announces the
brightness level (Bright, Dim, Dimmer, Dark, or Off) as
it changes to that level. Press the key again to cycle
between the brightness levels.
Turn bands on and off
Press
MENU
and then press
VOL+
to cycle through the
menu options until the band you want to turn on or
off displays. Press
MENU
again to change that band’s
status.
Change system modes
(Highway to City or
Auto), or set attenuation
levels in Advanced mode
and back
Press
MENU
then
Vol+
. The current system mode
displays. Press
MENU
to cycle through
Highway
,
City
,
Auto
, and
Advanced
. After you select
Highway,
City
,
or Auto, press and hold
MENU
to exit. If you select
Advanced
, press VOL
+
to select either the
X, K,
or Ka
band to adjust. Press
MENU
to adjust sensitivity levels
in 10% increments. Press
Vol+
again to adjust the
other modes.