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 | |||
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Normal | Monitors a single marine | Monitor a channel or | (default | |
mode | channel and lets you talk | talk to another radio. | mode) | |
| on that channel. |
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| |
Scan | Monitors all the channels | Check a small group | Press Scan- | |
mode | you save into memory. | of | Dual. | |
channels for traffic. | ||||
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Weather | Monitor the selected | You want to hear the | Press WX- | |
current or forecasted | ||||
mode | NOAA weather channel. | Alert. | ||
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| weather. |
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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 | Press and hold | |
Watch | channel for hazard alerts | for 2 seconds. | |
every 7 seconds. | |||
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Dual Watch | Checks channel 16 for activity | Press and hold Scan- | |
every 2 seconds. | Dual for 2 seconds. | ||
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Triple Watch | Checks channels 16 and 9 for | Press and hold | |
activity every 2 seconds. | for 2 seconds. | ||
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| Checks channels 16 and 9 for | Turn on Triple Watch, | |
Quad Watch | activity every 2 seconds, and | then turn on Weather | |
checks the | |||
| Alert Watch. | ||
| channel every 7 seconds. |
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Note: Private boats must monitor channel 16 when- ever they are underway.
Uniden MHS75 Radio Owner’s Manual |