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Uniden MHS450 Radio Owner’s Manual
Adjusting Display Contrast
You can adjust the contrast setting of the
LCD for various viewing conditions.
Press ▲ or ▼ from the RADIO
MENU screen to highlight
Contrast. Press ENTER.
Press ▲ or ▼ to increase or decrease the level which
is indicated by the number displayed (01 to 10)
and the thermometer bar. You see the screen contrast
change as you change the setting from 01 to 10.
Press ENTER to save your selection. The display
returns to the RADIO MENU screen.
Setting Dual or TriWatch
There are two specialty channels, 16, and
9. Channel 16 is the primary distress/
Coast Guard/Hailing channel while Chan-
nel 9 is typically the backup hailing/calling
channel for areas where there is higher
level of marine trafc. Depending on your location, you can
choose to monitor both distress channel 16, the extra hailing
channel 9 as well as the radio channel you are otherwise using
(TRIWATCH), or you can choose to only monitor channel 16
and your regular channel (DUALWATCH) which lets the radio
check each channel more frequently.
From the RADIO MENU screen,
use ▲ or ▼ to reach the Dual/
TriWatch option. Press ENTER.
Press either ▲ or ▼ to reach
either 16/9 TriWatch (default) or 16 DualWatch. Press
ENTER to select it. A double beep sounds and the
radio returns to the RADIO MENU screen.
Press MENU again to return to the marine mode.
1.
2.
3.
1.
2.
3.
Contrast
Adjust
Contrast
Adjust
Exit
16/9 TriWatch
16 DualWatch
Dual/Tri Watch
Exit
16/9 TriWatch
16 DualWatch
Dual/Tri Watch