Uniden UM415BK Owner's Manual page 38

Problem
Noise comes out of the speaker
all the time
I can't hear anything (no
volume) from the speaker.
I can transmit, but no one can
hear me.
The display flashes, and I don't
know why.
I can't read the display.
The display is too bright at
night.
I can't see any words on the
display.
I'm not getting any GPS data
on my display.
I'm not getting any hazard
alerts.
I'm getting all the hazard
alerts, not just the ones for
my area.
I can't make Group DSC
calls.
Where can I find my radio's
serial number?
 English
Things to Try
Adjust the squelch level; it is probably too low.
Adjust the squelch level; it is probably too high.
Check your UIC channel settings (see Setting the UIC
channel mode (USA/CAN/INT) on page 10).
The display will flash if the radio is in a watch mode or
in scan mode. Try turning off scanning, Weather Alert
Watch, or Triple/Dual Watch (see page 11.)
Adjust the contrast and backlight brightness level (see
page 20).
Adjust the backlight brightness level.
Turn off the radio; hold CALL-MENU button and turn it
back on (see page 20).
Reset the radio back to the default brightness level:
turn off the radio; hold the CALL-MENU button and
turn it back on.
Make sure your GPS receiver is correctly
connected (see Connecting to a GPS receiver,
page 34).
Make sure your GPS receiver is working properly.
Make sure that your GPS receiver supports the
NMEA parameters described in NMEA Operation
on page 49.
Make sure Weather Alert Watch is turned on.
Check to make sure the FIPS codes in your radio
include your current location (see Using FIPS
codes for weather alerts on page 19).
Check to make sure the FIPS codes in your radio
were entered correctly (see Using FIPS codes for
weather alerts on page 19).
Sometimes the Weather Alert Watch may catch
a hazard alert in the middle of the broadcast and
miss which FIPS codes are affected. For your safe-
ty, the radio triggers the alert tone and switches to
the weather channel when this happens.
Make sure the Group MMSI was entered correctly.
Look on the right side of the radio (the side with the
microphone cord), behind the mounting bracket.