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UPDATING THE FIRMWARE/DATABASE
Uniden recommends that you update your R8 firmware and database periodically.
Go to www.unidensupport.com/radar-detectors/, find your model, and check if you
have the latest firmware.
TROUBLESHOOTING
If...
TRY THIS...
The unit won’t turn on
Check the connections. Be sure they are all
secure.
No display or audio.
If no display, check the connections. Be sure
they are all secure.
If no audio, check if Voice is turned off.
The unit alarms when the vehicle
hits bumps.
Check the connections. Be sure they are all
secure.
The unit alarms briefly in the same
location but no radar source was
in view.
There may be a motion sensor or house
alarm in use within range.
The R8 did not alert when a police
car was in view.
The officer may not have radar/laser units
turned on.
Check that the band is turned on. Press
MENU
and cycle through the options to get
to the bands. If the band is turned off, the
OLED will show OFF. Turn the band on.
The vehicle starts but the R8 does
not turn on.
Verify that the power cord is securely
connected to the unit and inserted into the
cigarette lighter jack.
SPECIFICATIONS
Receiver Type:
Antenna Type:
Radar Double Conversion
Super-heterodyne Self-
Contained Antenna
Radar
Linear Polarized E-vector
Vertical