Uniden MHS135DSC owner manual Making DSC Calls, To the DSC Directory Edit screen

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to the DSC Directory Edit screen.

8.To delete the directory entry, select Delete.

9.When you are satisfied with the directory list, press CLR/SCAN to close the menu screen.

Making DSC Calls

There are essentially four different types of DSC voice calls:

Call type

What it does

When to use it

Distress

Alerts all stations that you need assistance

In an emergency only.

 

and sends them your current position.

 

 

 

 

Individual

Calls a single station using the User MMSL.

When you want to talk to another

 

 

station.

 

 

 

Group

Calls all the stations that have the same

Any time you want with the whole

 

Group MMSL as yours.

group you are traveling with at the

 

 

same time.

 

 

 

All Ships

Calls all stations within range of your radio.

Safety warnings (e.g., debris in the

 

 

water) or any urgent situation.

 

 

 

Suppose you are coordinating safety for a sailboat race. Before the race starts, you instruct all the racers to enter your group MMSI number into their radios. During the race:

xx Throughout the race, you use group calling to update the racers on the time, race status, and any course corrections.

xx A power boat full of spectators comes too close to the race path. You use individual calling to contact the power boat and advise them to stay clear of the race.

xx You see a rowboat entering the area, but since it doesn’t have a radio, you can’t communicate with the rowboat. You use all ships calling to alert all the other boats in the area of the possible danger.

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Uniden MHS135DSC Radio Owner’s Manual

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Contents MHS135DSC Making a Distress Call Faire UN Appel DE Détresse Table of Contents Features IntroductionParts of the MHS135DSC Getting StartedWhat’s included Front viewBack view Button Press to Press and hold toDisplay icons and what they mean ChargerReading the display Icon What it meansNormal Menu How It WorksMenu Option What it does Operation Modes Mode What it does Use it when you want to To turn it on/offCall Menu Normal Watch mode What it does To turn it on/offMonitoring Channel Memory Channel Scan ScanWith DSC Watch on WX Alert Watch on wxTriple WX Alert Watch on WeatherTriple 16 09 Watch on 08 10 11 12 13 14 15 17 20 24Using Alkaline Batteries Setting Up the HardwareInstalling the Battery Attaching the AntennaImportant notes on charging the battery Setting Up Your RadioCharging the Battery Mounting the ChargerSetting It Up Entering the User MmsiOperating the Radio Making a Transmission Digital Selective Calling FeaturesWhat is DSC? Changing the transmission levelMmsi Numbers Advanced DSC featuresFeature Menu Item Function Entering Mmsi numbersEntering Your User Mmsi Number Entering a group Mmsi numberUsing the Directory Entering an individual Mmsi numberMaking DSC Calls Call type What it does When to use itTo the DSC Directory Edit screen All ships call Calling a single station Individual CallSelect Individual Calling a particular group of stations Group Call Making an automatic distress callCalling all stations All-Ships Call Receive log Canceling an automatic distress callReceiving a DSC call Select Receive LogMaking Test Calls Test Test CallsReturning a call from the Receive Log DSC Call Type Receive Log InformationReceiving Test Call Setup Select DSC Setup and then Test ReplyEnabling Automatic Position Reply Position Request and ReplyAcknowledging Test Call Receipt POS RequestPosition Reply Putting the radio into standbyPosition Send Select DCS Setup, then Auto CH SW GPS FeaturesDisabling automatic channel switching GPS Operation OverviewGPS Setup Menu Nmea Features Using the FlashlightMaintenance and Troubleshooting Renaming ChannelsCommon Questions SpecificationsProblem Things to Try GeneralChannels and Frequencies MHz US channel frequencies and namesRX Freq TX Freq Status Name Canadian Marine Channels Canadian channel frequencies and namesRX Freq TX Freq Status International channel frequencies and names RX Freq TX Freq Status Name on displayDSC Weather channel frequencies and names Regulations and Safety WarningsMaritime Radio Services Operation ChannelFCC RF Exposure Information Three Year Limited Warranty

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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