avoids the problems of busy voice channels.

Advanced DSC features

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.

 

 

 

All Ships Call

All Ships

Broadcast to all vessels within range (used for safety or

 

 

advisory messages).

 

 

 

Position Request

POS Request

Request the current location of another vessel.

 

 

 

Position Send

Position Send

Transmit your current location to another vessel.

 

 

 

Test Call

Test

Make sure your radio is working and configured correctly.

 

 

 

Standby Mode

Standby

Automatically respond to all DSC calls with “Unavailable” status.

 

 

 

Receive Log

Receive Log

Displays last 10 distress calls and last 50 general calls the

 

 

radio received.

 

 

 

DSC Setup

DSC Setup

Accesses DSC menus.

 

 

-- POS Reply

 

 

-- Test Reply

 

 

-- Group MMSI

 

 

-- User MMSI

 

 

-- Directory

 

 

-- Auto CH SW

 

 

 

MMSI Numbers

In order to use DSC features, you must be assigned a User MMSI number and program that number into your radio. There are two other kinds of MMSI numbers: individual numbers for use by single boats and group numbers for use by fleets, boating organizations, event coordinators, etc.

You can get more information on MMSI numbers at these resources:

xx The dealer where you purchased the radio

xx Recreational boaters can obtain an MMSI number from the Boat Owner’s Association of the U.S. (http://www.boatus.com/mmsi/ or call 800-536-1536) or Sea Tow Services International (http://seatow.com/boating_safety/mmsi.asp)

xx Commercial boaters need a ship station license to get an MMSI number. For more information, visit the Federal Communications Commission (FCC) website at http:// wireless.fcc.gov/marine/ fctsht14.html.

Entering MMSI numbers

Use the CHANNEL UP and CHANNEL DOWN keys to scroll through numbers (and letters when entering names). When you see the number/letter you want, press the right

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Uniden MHS135DSC owner manual Advanced DSC features, Mmsi Numbers, Entering Mmsi numbers, Feature Menu Item Function
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MHS135DSC specifications

The Uniden MHS135DSC is a highly regarded handheld marine radio designed for boating enthusiasts and professionals alike. This device combines advanced technology with user-friendly features, making it an essential tool for effective communication on the water.

One of the standout features of the MHS135DSC is its Digital Selective Calling (DSC) capability, which enhances safety by allowing boaters to send automated distress signals. This feature significantly improves the speed of communication in emergencies, sending distress alerts that include the boat's GPS location to nearby vessels and coast guard stations. The MHS135DSC also supports Class D DSC, which means it can prioritize emergency calls over regular communication.

The radio is built to withstand the rigors of marine environments, featuring an IPX8 waterproof rating, making it submersible in water up to 1.5 meters for 30 minutes. This robust design ensures that the radio remains operational even in adverse weather conditions, providing peace of mind to users.

Another notable characteristic of the MHS135DSC is its built-in GPS receiver. This feature allows users to easily access their location and navigate more effectively. The unit can display real-time coordinates, and it integrates seamlessly with other marine navigation systems. The internal GPS also facilitates DSC operations, ensuring that crucial location data is sent during distress calls.

The MHS135DSC operates on both the VHF marine radio band and supports a wide range of channels for effective communication. With 1W/5W power settings, users can adjust transmission strength according to their communication needs, whether they are in close proximity to other vessels or need to reach distant stations.

A user-friendly interface is an additional asset of this radio. The clearly labeled buttons and intuitive design make it easy to operate, even for those new to marine electronics. The radio also features a bright LCD display for clear visibility even under direct sunlight.

Battery life is another critical aspect, and the MHS135DSC excels in this area with a rechargeable lithium-ion battery that provides long-lasting power. The device also supports battery save modes, ensuring that the radio remains functional during extended outings.

In summary, the Uniden MHS135DSC is a feature-rich handheld marine radio that prioritizes safety, usability, and durability. With its DSC capabilities, waterproof design, built-in GPS, and robust battery life, it serves as an essential communication tool for anyone navigating the waters, ensuring connectivity and peace of mind.
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