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Uniden MHS550 Radio Owner’s Manual
Standard FM Broadcast Band (87.5-108 MHz) — Lets you
enjoy your favorite broadcast programming.
Aircraft Broadcast Reception (108-137MHz) — Lets you
listen in on aircraft to ground transmissions.
Triple and DualWatch Operation — In TripleWatch
operation, the radio monitors the working channel, then 2-
seconds later, the Coast Guard/Distress/Hailing Channel 16
then in another 2-seconds, Channel 9, the backup channel.
In DualWatch, the radio monitors the channel in use (marine
or weather) then 2-seconds later, Channel 16.
Normal Scan — with two or more channels or frequencies
stored in memory, the radio either checks those channels in
rapid succession or lets you use the frequencies as Station
Presets. This also applies to Dual or TripleWatch mode.
Transmitter Power Level Select — lets you select an
output power settings of 1, 2.5, and 5 watts except for certain
restricted channels.
Channel Select Keys — let you easily navigate up and
down the channel list to the desired channel. They also let
you quickly choose all desired Radio Menu options.
Submersible — The radio is JIS7 compliant. This means it
remains watertight if submerged in 1 meter of water for 30
minutes.
Battery Power Level Display and Tone — clearly indicates
ve levels of battery power. Sounds an alert tone when
battery power reaches a level before shutting down.
Battery Save — during specic transmit operations, the
radio powers down to extend battery life.