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MENU ITEM
WHAT IT DOES
Auto Mute
Auto Mute reduces alarm level to 1 after 3 seconds
and returns to normal operation (Auto Mute = OFF) 10
seconds after the alert ends. If the same alarm sounds
within the 10 second period, Auto Mute remains at level
1. The unit returns to normal operation (Auto Mute =
OFF) if a different band is detected during Auto Mute =
ON mode.
Backlight
Turns the backlight on and off.
Press and hold MUTE/DIM to select a brightness level.
BAT Warning
Issues a warning if the vehicle battery power drops
below 11V.
Selt Test
Runs a self diagnostic test on the unit to check for faults. On
Factory Reset
Resets all settings to the factory defaults.
There is no confirmation request for reset.
Firmware
Displays the latest firmware version.
Version
EXIT
Closes the Menu system.
BASIC OPERATIONS
HOW DO I ...?
Turn on the LRD850
Adjust the volume
Mute alarm volume during the
alert
Change the screen's brightness
Turn bands on and off
Change Highway to City and
back
Update the firmware
FEATURE DETAILS
HIGHWAY VS CITY MODE
Radar detectors operate with various sensitivity levels. These levels determine the types of signals and signal
ranges (bands) detected. Highway mode is the most sensitive level while City mode is the least sensitive. If the X
band is left on in City mode, a radar detector can pick up many X band signals (such as garage door openers) that
generate false alerts. The LRD850 turns off the X band for City mode. When you are on the highway, there is less
chance of picking up X band false alerts, so the LRD keeps the X band on.
TRY THIS...
Press POWER. The unit turns on and runs through an initial self-check. It
displays the different bands and their settings.
The LRD850 turns on automatically when you start the vehicle.
• Press VOL + to increase volume. The unit beeps, announces "Volume (0 -
6)," and displays a number increase.
• Press VOL – to decrease volume. The unit beeps, announces "Volume (0 -
6)," and displays a number decrease.
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.)
Press and hold MUTE/DIM. The LRD850 announces the brightnes level
(Bright, Dim, or Dark) as it changes to that level. Press and hold the keys
again to cycle between the brightness levels.
Press MENU and cycle through the menu options until the band you want to
turn off displays. Press MENU again to change that band's status.
Press CITY for at least 1 second to alternate between HIGHWAY and CITY
setting.
Refer to LRD850 Firmware Update Guide on www.uniden.com for details.
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SETTINGS
On
Off
On
Off
On
Off
Off
NA
NA
NA
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