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Uniden MHS450 Radio Owner’s Manual
DualWatch Scanning
Marine channel 9 is reserved as a backup hailing, calling
channel for areas of high marine trafc. Channel 16 is the
reserved Coast Guard Distress, hailing channel.
Press and hold 16/9/TRI. If you have set DualWatch as your
default mode using the RADIO MENU options (see page 28),
the radio begins to include a check of Channel 16 along with
any other stored channels.
MEM
16
MEM MEM MEM MEM MEM MEM MEM
2 seconds
TripleWatch Scanning
Using the option in the RADIO MENU choices (see page 28),
you can choose to have the radio not only scan the channels
you stored and Channel 16, but also Channel 9, the backup
hailing, calling channel.
When you press and hold 16/9/TRI, the radio scans
according to the sequence shown below. In this case, the
radio is set to marine channel 25 and TripleWatch has been
selected from the RADIO MENU.
16
25
09
TripleWatch Scan of Marine Ch. 25,
Hailing Ch. 9, and Distress Ch. 16