Making a voice Mayday call, Setting the volume | Uniden UM380

to choose the selected item.

xx Press CHANNEL UP on the radio or the microphone to move up a line in the menu; if you are at the top line in the menu, the cursor jumps to the bottom of the menu.

xx Press ENT-1W/25W

xx Press CHANNEL DOWN on the radio or the microphone to move down a line in the menu; if you are at the bottom line of the menu, the cursor jumps to the top of the menu.

xx Press CLR-SCANto go back to the previous menu screen.

xx From any menu screen, choose Exit or press and hold CALL-MENUto close the menu screen.

Making a voice MAYDAY call

(see inside front cover)

Setting the volume

Turn the volume knob clockwise to increase the speaker volume; turn it counter-clockwise to decrease the volume.

Setting the squelch level

The squelch feature reduces the level of static on the speaker by filtering out the background channel noise. At the lowest squelch level, the speaker plays all radio signals, including any noise on the channel. Setting the squelch level higher filters out channel noise and lets only actual radio transmissions through.

Strong signals

Weak signals
Noise
No	Medium	High
Squelch	Squelch	Squelch

While listening to a channel, adjust the SQUELCH knob until the noise is filtered out and you can only hear the transmission. If you switch to a channel with a lot of noise or with a weak transmission, you may need to adjust the squelch level again.

##NOTE: Setting the squelch level too high may prevent you from hearing weaker transmissions. If you are having difficulty hearing a transmission, try setting the squelch level lower.

Changing the channel

Press CHANNEL UP and CHANNEL DOWN briefly to scroll through the channels one channel at a time. Press and hold CHANNEL UP or CHANNEL DOWN to quickly scroll through the channels.

Making a transmission

To make a transmission, press and hold the microphone PUSH TO TALK button. Release the PUSH TO TALK button when you’re finished talking to let the other party respond.

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Uniden UM380 owner manual Making a voice Mayday call, Setting the volume, Setting the squelch level, Changing the channel

Contents

UM380 Making a Voice Distress Call Making a Distress Call Faire un appel de détresse vocal Faire un appel de détresse Cómo hacer una llamada de socorro por voz Cómo hacer una llamada de socorro Contents Introduction FeaturesManual overview Conventions What’s included Getting Started Button Press to Press and hold to Parts of the Radio Cancel scanning and stay on Talk on a channel Channel Connector/Cable Connects to For details, seeParts of the Microphone Turning on the Radio How It Works Setting the UIC Channel Mode USA/CAN/INTMode What It Does Use It When To Turn it on./off Message Meaning Normal mode operationWatch Mode What It Does Use It When To Turn it on./off Normal mode with Weather Alert Watch Using the radio in normal modeNormal mode with Triple and Dual Watch Monitoring Channel 08 10 11 12 13 15 17 Scan modeNormal mode with both Weather Alert and Triple/Dual Watch Scan mode with Triple and Dual Watch Using the radio in scan modeScan mode with Weather Alert Watch Using the radio in weather mode Weather modeScan mode with both Weather Alert and Triple/Dual Watch Monitoring Weather Channel WX08 Using Your RadioUsing Your Radio Setting the squelch level Setting the volumeMaking a voice Mayday call Changing the channel Choosing Triple Watch or Dual Watch Boosting the transmission power Using Fips codes for weather alerts Lamp adjust Setting the GPS position manuallyChanging display and sound options Contrast Setup What is DSC? Using Digital Selective Calling DSC FeaturesAdvanced DSC features What is an Mmsi number? Individual or User Mmsi Number Entering Mmsi numbers Group Mmsi number Using the Directory Channel Up Button Channel Down Button Call type What it does When to use itMaking DSC Calls Select Individual Calling a single station Individual Call Calling all stations All-Ships Call Making an automatic distress callCalling a particular group of stations Group Call Receiving a DSC call Canceling an automatic distress callReceive log DSC Call Type Receive Log Information Making Test Calls Test Test CallsReturning a call Enabling automatic test call reply Receiving Test Calls Requesting another station’s position POS Request Position Request and ReplyReceiving a position request Position Reply Enabling automatic position reply Sending your own position Position Send Disabling automatic channel switchingPutting the radio into standby Mounting the radio Installing the Hardware Power Supply Requirements VHF Antenna Requirements Connecting the radio Ground Wire Color Connecting to a GPS receiver GPS Verification Configuring the GPS Connecting to an External Speaker Connecting to a Chartplotter Problem Things to Try Maintenance and Troubleshooting Engine Noise Suppression Transmitter SpecificationsRadio Specifications Channel descriptions and what they mean Reference TablesReceiver Channel name/description Used for Ch No RX Freq TX Freq Status Name on display US Marine Channels and Frequencies Canadian Marine Channels and Frequencies Ch No RX Freq TX Freq Status Name on display International Marine Channels and Frequencies Ch No RX Freq TX Freq Status Name on display Emergency Alert System Same Information Weather Channels and Frequencies US, CAN, and INTCh No RX Freq Name on display Types of events FFW WFW No Response Event Code Nmea Input Nmea OperationNmea Output Three Year Limited Warranty English UM38020101221.indd 13/2011 112520 AM UM38020101221.indd 13/2011 112520 AM UM38020101221.indd 13/2011 112520 AM QUESTIONS?