Engine Noise Suppression - Uniden UM435 Owner's Manual

Problem
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?
The radio won't let me enter
my User MMSI. What do I
do?

ENGINE NOISE SUPPRESSION

Interference from the noise generated by the electrical systems of engines is sometimes a
problem with radios. Your radio has been designed to be essentially impervious to ignition
noise and alternator noise. However, in some installations it may be necessary to take
measures to further reduce the effect of noise interference. Your radio's DC battery wires,
antenna lead, and accessory cables should be routed away from the engine and engine
compartment, and from power cabling carrying high currents. In severe cases of noise
interference, it may be necessary to install a noise suppression kit. Contact the dealer
where you purchased the radio for more information.
Things to Try
Make sure your GPS receiver is correctly connected
(see Connecting to a GPS receiver, page 30).
Make sure your GPS receiver is working properly.
Make sure that your GPS receiver supports the NMEA
parameters described in NMEA Operation on page
44.
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 13).
Check to make sure the FIPS codes in your radio were
entered correctly (see Using FIPS codes for weather
alerts on page 13).
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 safety, 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.
Visit our website at www.uniden.com for assistance.
34