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MENU ITEM
FUNCTION
SETTINGS
K Band
Attenuation
(Basic and
Expert levels,
Advanced
modes only)
The higher the attenuation (100%)
the more signals, including weaker
signals, are received. Reduce
attenuation and the weaker
signals drop out, leaving only the
stronger signals.
100%
(Default)
~ 30%
(In decreasing 10%
increments)
Ka Band
Attenuation
(Basic and
Expert levels,
Advanced
modes only)
The higher the attenuation (100%)
the more signals, including weaker
signals, are received. Reduce
attenuation and the weaker
signals drop out, leaving only the
stronger signals.
100%
(Default)
~ 30%
(In decreasing 10%
increments)
Auto City Speed Sets the speed at which the
R4 changes from City mode to
Highway mode and back.
10 - 60 mph (in 5 mph
units) or
10 - 100 km/h (in 10 km/h
units)
GPS
(Turn GPS
on and off in
Expert level
only)
Display current GPS status in Basic
level.
Turn GPS on or off in Expert level
only.
GPS determines your geographic
location and locates set frequency
locations in your area from a
database.
If GPS is turned on, other GPS-
related menu items display.
On
(Default)
Off
Speed Camera
Alarm
(If GPS on)
Notifies you if any speed cameras
are nearby.
On
(Default)
Off
Speed Camera
Alert Range
(If GPS on)
Sets range for speed camera
detection when Speed Camera
Alarm is On.
1000 ft (300 m)
(Default)
2,000 ft (600 m)
2,500 ft (760 m)
3,000 ft (900 m)