Uniden MHS235 Owner's Manual download pdf (Page 21)

E-17Uniden MHS235 Radio Owner’s Manual

Changing the Channel

Press the Channel Up and Channel Down buttons briey to scroll through the channels

one channel at a time. Press and hold the Channel Up or Channel Down buttons to

quickly scroll through the channels.

Saving the Channel into Memory

Press and hold GPS/MEM.

MEM

displays on the screen to indicate that that channel is now

stored in memory. Press and hold GPS/MEM again to remove the channel from memory.

Using the Strobe/Flashlight

You can use this radio in an emergency. If you press and hold WX/SOS, the radio turns on

the high-intensity LED strobe on your radio. The LED ashes “S O S” in international Morse

Code.

# 



1. Press and hold WX/SOS. The LED lights in the SOS Morse Code pattern.

2. Press and hold WX/SOS again. The LED stays on.

3. Press and hold WX/SOS again. The LED goes off.





Digital Selective Calling (DSC) is a standard that allows you to call other stations using

their unique identication code (the Maritime Mobile Service Identity or MMSI number), just

like you would call a phone number. To call another station, just enter that station’s MMSI

number and choose the voice channel you want to talk on. The radio uses channel 70 to

transmit your MMSI number to the other station along with the voice channel you requested.

If the other station accepts your call, both radios automatically switch to the requested voice

channel so you can talk to the other station.

DSC provides a system for automated distress calls. At the touch of a button, the radio can

transmit your MMSI number, the nature of your distress, and your current position based on

data from your GPS receiver. The radio repeats the distress call every few minutes until it

receives an acknowledgement.

The DSC standard dedicates a VHF channel—channel 70—to digital transmissions only.

Since digital transmissions require less bandwidth voice transmissions, channel 70 avoids

the problems of busy voice channels.



Your radio supports the following DSC features:

Feature Menu Item Function

Individual Call Individual Contact another vessel from your directory.

Group Call Group Contact all vessels that share your group MMSI code.

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Uniden MHS235 Owner's Manual Page 21