Uniden UM380BK Changing the channel, Making a transmission, Boosting the transmission power

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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

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.

xx To prevent stuck microphone problems or situations where PUSH TO TALK is pushed

accidentally, the radio limits your talk time to 5 minutes in a single transmission. If you talk for over 5 minutes continuously, the display shows RELEASE MIC BUTTON.

xx For the best sound quality, hold the microphone about two inches away from your mouth. xx You cannot transmit while the radio is in weather mode or scan mode.

xx See the channel lists beginning on page 41 for a list of receive-only channels.

Boosting the transmission power

In most situations, the 1 Watt transmission power is all you need. If you find yourself far away from other stations and have trouble getting a response, you may need to boost the transmission power from 1 Watt to 25 Watts:

1.Select the channel you want to transmit on.

2.Push and hold ENT-1W/25Wfor two seconds. The display shows 25 Watts in the upper left hand corner.

3.The transmit power remains at 25 Watts until you change the setting back. Push and hold ENT-1W/25Wfor two seconds. The display shows 1 Watt.

##NOTE: Don’t forget to change the transmission setting back to 1 Watt when you move closer to other stations.

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Contents UM380 Making a Distress Call Making a Voice Distress CallFaire un appel de détresse Faire un appel de détresse vocalCómo hacer una llamada de apuro Cómo hacer una llamada de apuro por vozContents Channel descriptions and what Manual overview FeaturesIntroduction ConventionsGetting Started What’s includedParts of the Radio Button Press to Press and hold toParts of the Microphone Connector/Cable Connects to For details, seeCancel scanning and stay on Talk on a channel Channel Turning on the RadioSetting the UIC Channel Mode USA/CAN/INT Mode What It Does Use It When To Turn it on./offHow It Works Normal mode operation Watch Mode What It Does Use It When To Turn it on./offMessage Meaning Normal mode with Triple and Dual Watch Using the radio in normal modeNormal mode with Weather Alert Watch Monitoring ChannelUsing the radio in scan Scan modeNormal mode with both Weather Alert and Triple/Dual Watch ModeScan mode with Triple and Dual Watch Weather modeScan mode with Weather Alert Watch Scan mode with both Weather Alert and Triple/Dual WatchWeather mode with Weather Alert Watch Using Your RadioUsing the radio in weather mode Monitoring Weather Channel WX08Setting the squelch level Using Your RadioSetting the volume Making a voice Mayday callBoosting the transmission power Changing the channelMaking a transmission Using Fips codes for weather alerts Choosing Triple Watch or Dual WatchChanging display and sound options Setting the GPS position manuallyLamp adjust ContrastTimeframe Is GPS Display Alert Condition Notes Connected? Minute mark Next level Displays applyAdvanced DSC features Using Digital Selective Calling DSC FeaturesWhat is DSC? Feature Menu Item FunctionWhat is an Mmsi number? Entering Mmsi numbersIndividual or User Mmsi Number Using the Directory Setup Group MmsiCall type What it does When to use it Making DSC CallsChannel Up Button Channel Down Button Calling a single station Individual Call Select IndividualMaking an automatic distress call Calling a particular group of stations Group CallCalling all stations All-Ships Call Canceling an automatic distress call Receiving a DSC callReceive log Returning a call Test CallsDSC Call Type Receive Log Information Making Test Calls TestReceiving Test Calls Enabling automatic test call replyReceiving a position request Position Reply Position Request and ReplyRequesting another station’s position POS Request Enabling automatic position replyDisabling automatic channel switching Putting the radio into standbySending your own position Position Send Installing the Hardware Mounting the radioConnecting the radio Power Supply Requirements VHF Antenna RequirementsConnecting to a GPS receiver Ground Wire ColorConfiguring the GPS GPS VerificationConnecting to a Chartplotter Connecting to an External SpeakerMaintenance and Troubleshooting Problem Things to TryEngine Noise Suppression Specifications Radio SpecificationsTransmitter Receiver Reference TablesChannel descriptions and what they mean Channel name/description Used forUS Marine Channels and Frequencies Ch No RX Freq TX Freq Status Name on displayCanadian 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 Ch No RX Freq Name on display Weather Channels and Frequencies US, CAN, and INTEmergency Alert System Same Information Types of eventsFLA VOW Nmea Output No Response Event CodeNmea Operation Nmea InputRegulations and Safety Warnings Three Year Limited Warranty