Uniden MHS450 ユーザーズマニュアル

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Uniden MHS450 Radio Owner’s Manual

In addition to using Triple or Dual Watch to monitor the Coast 

Guard/Distress/Hailing channels, you can manually select 

them at any time.
To select your Coast Guard/Distress/Hailing channel, 

repeatedly press 

16/9/TRI. At the first 

press, the radio switches to channel 16, 

the primary Coast Guard/Distress/Hailing 

channel. 16 appears on the screen. Press 

the button again to switch to channel 9, the 

backup calling channel. 9 appears and NON COMMERCIAL 

appears at the bottom. Press again to return to the standard 

marine channels. 
If you are listening to a weather (WX) channel and you 

press 

16/9/TRI, the radio drops out of weather mode and 

switches to channel 16 and displays 16. If you are also set to 

TriWatch, the radio begin to check 9, then 16 then the marine 

channel in use prior to selecting the weather mode.

Once you have stored channels in 

memory, you can set the radio to scan 

those channels for activity. To select and 

store a channel follow these steps.

Use ▲ or ▼ until you reach a channel you want to 

store.
Press and hold 

SCAN/MEM to store the channel 

in memory. A double beep sounds to confirm your 

action.
CHANNEL STORED appears at the bottom of the 

display.
If you take no further action, the screen returns to the 

standard marine screen in 3-seconds.

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