Uniden MHS125 owner manual Maintenance and Troubleshooting, Turning the Key Beep On and Off

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	With the
	SOS LED in	Do This -	For this -
	this state -
	OFF	Press and hold MEM-	SOS LED signals
	OFF	SOS key for 2 seconds.	SOS in Morse code.
		SOS key for 2 seconds.	SOS in Morse code.
	SOS	Press and hold MEM-	SOS LED remains
	SOS	SOS key for 2 seconds.	on continuously.
		SOS key for 2 seconds.	on continuously.
	Continuous	Press and hold MEM-	SOS-LED turns off.
	Continuous	SOS key for 2 seconds.	SOS-LED turns off.
		SOS key for 2 seconds.

Turning the Key Beep On and Off

Key beep is the tone that sounds when you press a key or a button. To turn off the key beep, press and hold the Channel Up or Channel Down button while turning ON the radio. To turn on the key beep, turn off the radio and then press and hold the Channel Up or Channel Down button while turning ON the radio again.

Using the External Speaker/Mic Jack

You can connect an optional external speaker-mic to this watertight jack. Unscrew the cap, which is held by the rubber cap-keeper to prevent loss. Insert the special gasketed plug and screw down the shell, which assures prevention of water entering the jack. Two available units are

HHSPM Speaker Mic

VOX100 Headset Mic.

For details, consult your dealer or contact Uniden directly (see back cover for contact information).

Maintenance and Troubleshooting

Due to its rugged design, your radio requires very little maintenance. However, it is a precision electronic instrument, so you should follow a few precautions:

E-20	Uniden MHS125 Radio Owner’s Manual

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Contents MHS125 Making a Distress Call Speak slowly clearly calmlyFaire un appel de détresse Parlez lentement clairement calmementTable of Contents Features Introduction Transmitter power level select  Dual, Triple and Quad Watch operationGetting Started What’s includedParts of the MHS125 Front viewBack view Charger Knob Turn clockwise to Turn counter-clockwise toButton Press to Press and hold to Reading the display Display icons and what they meanIcon What it means Mode What it does Use it when you To turn it Want to On/off Watch mode What it does To turn it on/offHow It Works Normal mode operation Normal mode with Weather Alert WatchNormal mode with Triple Watch or Dual Watch Normal mode with Quad WatchScan mode operation Using the radio in scan mode08 10 11 Scan mode with Weather Alert Watch Scan mode with Triple Watch or Dual WatchBoth Weather Alert and Triple/Dual Watch in scan mode 08 10Weather mode Using the radio in weather modeWeather mode with Weather Alert Watch Setting Up the Hardware Installing the BatteryWeather mode with Triple Watch or Dual Watch Attaching the AntennaUsing the Alkaline Battery Case Follow these steps to use the alkaline battery caseCharging the Battery Mounting the ChargerImportant notes on charging the battery Attaching the Belt ClipUsing Your Radio Changing the VolumeSetting Squelch Level Boosting the transmission power Changing the ChannelMaking a Transmission Setting the UIC Channel Mode Using the Strobe SOS LightMaintenance and Troubleshooting Using the External Speaker/Mic JackTurning the Key Beep On and Off With SOS LED Do This For this This stateProblem Common QuestionsSpecifications Problem Things to TryGeneral Channels and Frequencies MHz US channel frequencies and namesTransmitter ReceiverUS Marine Channels RX Freq TX Freq Status Name Canadian channel frequencies and names Canadian Marine Channels RX Freq TX Freq Status NameCanadian Marine Channels RX Freq TX Freq Status Name International channel frequencies and names International Marine Channels RX Freq TX Freq Status NameInternational Marine Channels RX Freq TX Freq Status Name Weather channel frequencies and names ChannelRegulations and Safety Warnings Maritime Radio Services Operation Basic Radio GuidelinesFCC/Industry Canada Information Body-Worn Operation Lithium Ion Battery Warning Three Year Limited Warranty Page Page QUESTIONS?

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