Uniden MHS75 How It Works, Mode What it does Use it when you To turn it Want to On/off

How It Works

The MHS75 radio has three main operation modes: normal mode, scan mode, and weather mode.

Mode	What it does	Use it when you	To turn it
		want to...:	on/off
Normal	Monitors a single marine	Monitor a channel or	(default
mode	channel and lets you talk	talk to another radio.	mode)
	on that channel.
Scan	Monitors all the channels	Check a small group	Press Scan-
mode	you save into memory.	of regularly-used	Dual.
		channels for traffic.
Weather	Monitor the selected	You want to hear the	Press WX-
		current or forecasted
mode	NOAA weather channel.		Alert.
		weather.

In addition to the three operation modes, the MHS75 provides four different watch modes which you can activate during any operation mode. In the watch modes, the radio briefly checks for activity on a specific channel, then returns to its previous operation.

Watch mode	What it does	To turn it on/off
Weather Alert	Checks the last-used weather	Press and hold WX-Alert
Watch	channel for hazard alerts	for 2 seconds.
	every 7 seconds.
Dual Watch	Checks channel 16 for activity	Press and hold Scan-
	every 2 seconds.	Dual for 2 seconds.
Triple Watch	Checks channels 16 and 9 for	Press and hold 16/9-Tri
	activity every 2 seconds.	for 2 seconds.
	Checks channels 16 and 9 for	Turn on Triple Watch,
Quad Watch	activity every 2 seconds, and	then turn on Weather
	checks the last-used weather
		Alert Watch.
	channel every 7 seconds.

Note: Private boats must monitor channel 16 when- ever they are underway. Water-going vessels should have either Triple Watch or Dual Watch on at all times.

E-6 Uniden MHS75 Radio Owner’s Manual