MHS125 FLOATING VHF MARINE RADIO RADIO VHF MARITIME FLOTTANTE OWNER’S MANUAL GUIDE D’UTILISATION
Making a Distress Call For future reference, write your boat’s name & call sign here: Speak slowly - clearly - calmly. 1. Make sure your radio is on. 2. Press the 16/9-TRI button to switch to Channel 16 (156.8 MHz). (If the corner of the display does not show 16, press the 16/9TRI button again until it does.) 3. Press the Push to Talk button and say: “MAYDAY -- MAYDAY -- MAYDAY.” 4. Say “THIS IS {name of your boat (three times) and call sign/ boat registration number (once)}.” 5.
Faire un appel de détresse Pour toute référence ultérieure, transcrivez ci-dessous le nom et l’indicatif d’appel de votre bateau: Parlez lentement – clairement – calmement. 1. Vérifiez si votre radio est en marche. 2. Appuyez sur la touche 16/9-TRI du microphone afin de commuter au canal 16 (156,8 MHz). (Si le canal 16 n’apparaît pas à l’affichage, appuyez de nouveau sur la touche 16/9-TRI jusqu’à ce qu’il soit affiché.) 3.
Making a Distress . Call................. (inside front cover) Table of Contents Introduction................................. E-1 Features....................................... E-1 Getting Started............................ E-3 What’s included............................ E-3 Parts of the MHS125.................... E-4 Front view.................................... E-4 Back view.................................... E-4 Charger....................................... E-5 Reading the display.................
Canadian channel frequencies . and names............................ E-25 International channel . frequencies and names......... E-27 Weather channel frequencies . and names............................ E-29 Regulations and . Safety Warnings..................... E-30 Maritime Radio Services . Operation................................. E-30 Basic Radio Guidelines.............. E-30 Three Year Limited . Warranty.................................
Transmitter power level select Lets you boost the transmitter power from 1 Watt to 2.5 or 5 Watts for added transmission distance. Battery level display and low battery alert. Dual, Triple and Quad Watch operation These different watch modes let you monitor up to two Coast Guard Distress/Hailing channels and one weather channel along with one regular marine channel. All marine VHF channels for the U.S.
Getting Started What’s included Charger Antenna MHS125 Radio AC Adapter DC Adapter Lithium Ion Battery Alkaline Battery Case (batteries not included) Belt Clip Mounting Hardware Wrist Strap If any pieces are missing or damaged, contact Uniden Customer Service (see back cover for contact information). For information on available accessories, visit www.uniden.com.
Parts of the MHS125 Squelch knob (Turn clockwise to decrease channel Volume-power noise.) knob (Turn clockwise to increase volume.) Front view Antenna LCD display Push to talk button Wrist strap anchor 16/9-Tri (16/9- triple watch) button Channel up button UIC-Lock button 1/2.
Knob VolumePower Squelch Turn clockwise to...: Turn on the radio or increase the volume. Raise the squelch level to reduce channel noise. Turn counter-clockwise to...: Decrease the volume or turn off the radio. Lower the squelch level to hear weaker signals. Button Press to... Push to talk NA 1st press: Go to channel 16. 2nd press: Go to channel 9. 16/9-Tri 3rd press: Go back to the starting channel. Save a channel into memory MEM-SOS or delete a channel from memory.
Reading the display The LCD display shows different information depending on what you are doing. This sample screen shows some of this information. The table below shows all the possible icons and what they mean. The radio is transmitting Battery status icon Transmit power level (1, 2.5, or 5 Watts) 88 Key lock is on UIC channel mode (USA, CANada, or INTernational) Triple Watch is The radio is in scan on mode Current channel number This channel is stored in memory. Weather Alert Watch is on.
How It Works Your radio has three main operation modes: normal, scan, and weather. Mode What it does Use it when you want to... Monitors a single marine Monitor a channel or Normal channel and lets you talk talk to another radio. on that channel. Check a small group Monitors all the channels Scan of regularly-used you save into memory. channels for traffic. Monitors the selected Hear the current or Weather NOAA weather channel. forecasted weather. To turn it on/off (default mode) Press ScanDual.
Note: Private boats must monitor channel 16 whenever they are underway. Water-going vessels should have either Triple Watch or Dual Watch on at all times. Normal mode operation To transmit, remove the radio from the charger, then press and hold the Push to Talk button. Release the button when you are finished talking. For the best sound quality, hold the microphone about two inches from your mouth while you’re talking. Press the Channel Up button to move up one channel at a time.
Normal mode with Triple Watch or Dual Watch If you activate Triple Watch while operating in normal mode, the radio checks channels 16 and 9 every two seconds; with Dual Watch turned on, the radio only checks channel 16. The radio will not check channels 16 or 9 while you are actively transmitting; it waits until your transmission is finished and then checks the channels. Monitoring Channel 25 09 16 09 16 Every 2 seconds, the radio checks channels 9 & 16.
Scan mode operation You can save channels into memory and then use scan mode to monitor those channels from lowest to highest. If the radio detects a signal on a channel, it stays on that channel as long as the signal is received; when the signal stops, the radio continues scanning. When it detects a signal, the radio stays on the channel until you press the Channel Up button or the signal stops. 08 10 11 12 13 Resume scan 14 15 17 The radio scans about 5 channels in 0.5 seconds.
Scan mode with Weather Alert Watch If you activate Weather Alert Watch while in scan mode, the radio checks the most recently-used weather channel every seven seconds, then continues scanning the next channel in memory: Memory Channel Scan 08 10 11 12 13 14 15 17 20 24 25 Every 7 seconds, the radio checks the last-used weather channel, then scans the next channel.
Memory Channel Scan 08 10 11 12 13 14 15 17 20 24 25 Every 2 seconds, the Every 7 seconds, the radio radio checks channels checks the last-used 9 & 16, then scans weather channel, then the next channel. scans the next channel. 09 16 Triple WX Alert wx Watch on Watch on Weather mode The NOAA weather channels now cooperate with the FCC to alert you of other hazards besides weather (child abduction alerts, nuclear, biological, etc.). In weather mode, the radio monitors one of the ten NOAA weather channels.
Weather mode with Triple Watch or Dual Watch If you activate Triple Watch while operating in weather mode, the radio checks channels 16 and 9 every two seconds; with Dual Watch turned on, the radio only checks channel 16. Monitoring Weather Channel WX08 09 16 09 16 09 16 Every 2 seconds, the radio checks channel 9, then channel 16 with Triple Watch on Setting Up the Hardware Attaching the Antenna The antenna detaches from the radio for easy shipping or storage.
2. Lower the battery until it rests flat in the compartment. 3. Bring the battery latch up and snap it into place. Using the Alkaline Battery Case The radio also comes with a battery case that holds four AAA-type alkaline batteries (not included). You can use alkaline batteries as a backup for the Li-Ion battery so you can still use your radio while your Li-Ion battery is recharging. For best performance, Uniden recommends using extrastrength alkaline batteries such as Duracell Ultra® batteries.
NOTE: Each time you open the battery case, check the rubber seal. Make sure the seal is seated in the groove and there is no dirt or debris on it. If the rubber seal looks worn or damaged, contact customer service to order a replacement (see the back cover page for contact information). 5. Install the alkaline battery case in your radio just as you do the Li-Ion battery (see page E-13). WARNING! The case is designed to prevent the accidental charging of alkaline batteries.
The charger is not waterproof. If the charger falls into the water, unplug it before attempting to remove it from the water. After you remove the charger from the water, please contact Customer Service (see the back cover page for contact information). Wipe off dirt or shake water from your radio before placing in the charger if your radio gets dirty or wet. Important notes on charging the battery Charge the battery fully before using the radio.
To remove the belt clip: 1. Rotate the clip so that the finger indentation is towards the bottom of the radio. 2. Slide the clip up until it comes free of the anchor post. Using Your Radio Changing the Volume To increase the speaker volume, turn the Volume-Power knob clockwise; turn it counter-clockwise to decrease the volume. Setting the Squelch Level Strong signals Weak signals The squelch feature reduces static on the speaker by filtering Noise out any background channel noise.
While listening to a channel, adjust the SQUELCH knob until the noise is filtered and you can hear only the transmission. If you switch to a channel with a lot of noise or a weak transmission, you may need to readjust 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.
2. Press the 1/2.5/5W button to switch to the next transmission power level (for example, from 5 Watt to 2.5 Watts; from 2.5 Watts to 1 Watt, or from 1 Watt back around to 5 Watts). 3. The display shows the new transmission power in the lower left hand corner. The transmit power remains at the new setting until you change it again. Note: Don’t forget to change the transmission setting back to 1 Watt when you move close to other stations.
With the SOS LED in this state - Do This - For this - OFF Press and hold MEMSOS key for 2 seconds. SOS LED signals SOS in Morse code. SOS Press and hold MEMSOS key for 2 seconds. SOS LED remains on continuously. Continuous Press and hold MEMSOS key for 2 seconds. SOS-LED turns off. 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.
If the antenna has been damaged, do not transmit except in an emergency situation. Transmitting with a defective antenna may cause further radio damage. You are responsible for continued FCC technical compliance of your radio. You should arrange for periodic performance checks with your Uniden dealer. Common Questions Problem Things to Try The radio won’t turn on. Charge the radio. - Don’t use the charger when the ambient temperature is below 0° C (32° F) or above 45° C (113° F).
Problem I can transmit, but no one can hear me. I’m not getting hazard alerts. The display flashes, and I don’t know why. Where can I find my radio’s serial number? Things to Try Check your UIC channel settings: does the area you are in use different channel assignments? Make sure Weather Alert Watch is turned on. The channel number on the display will flash if the radio is in a watch mode or in scan mode. Try turning off scanning, Weather Alert Watch, Triple Watch, or Dual Watch (see page E-7).
Transmitter Frequency Range Frequency Stability Power Output Spurious Emissions Current Drain Receiver Type Frequency Range Sensitivity Squelch Sensitivity Audio Frequency Response Adjacent Channel Selectivity Audio Output Power Current Drain 156~158 MHz ±10 PPM 1.0 W & 2.5W & 5W 70 dBc 1500 mA (5W) Double Conversion Super Heterodyne Phase Locked Loop system for Local Oscillator 156~164 MHz 0.20 μV for 12dB SINAD Threshold 0.12μV +6 dB @ 500 Hz; -6 dB @ 2000Hz 70 dB @ ±25 kHz 0.
Ch 10 11 12 13 14 15 16 17 18A 19A 20 20A 21A 22A 23A 24 25 26 27 28 63A 65A 66A 67 68 69 70 71 72 73 74 E-24 RX Freq 156.500 156.550 156.600 156.650 156.700 156.750 156.800 156.850 156.900 156.950 161.600 157.000 157.050 157.100 157.150 161.800 161.850 161.900 161.950 162.000 156.175 156.275 156.325 156.375 156.425 156.475 156.525 156.575 156.625 156.675 156.725 TX Freq 156.500 156.550 156.600 156.650 156.700 Inhibit 156.800 156.850 156.900 156.950 157.000 157.000 157.050 157.100 157.150 157.200 157.
Ch 75 76 77 78A 79A 80A 81A 82A 83A 84 85 86 87 88 RX Freq 156.775 156.825 156.875 156.925 156.975 157.025 157.075 157.125 157.175 161.825 161.875 161.925 157.375 157.425 US Marine Channels TX Freq Status Name 156.775 Simplex, 1W Port Operation 156.825 Simplex, 1W Port Operation 156.875 Simplex, 1W Port Operation (Ship-Ship) 156.925 Simplex Non Commercial 156.975 Simplex Commercial 157.025 Simplex Commercial 157.075 Simplex Coast Guard 157.125 Simplex Coast Guard 157.175 Simplex Government 157.
Ch 13 14 15 16 17 18A 19A 20 21A 22A 23 24 25 26 27 28 60 61A 62A 63A 64 64A 65A 66A 67 68 69 70 71 72 73 E-26 RX Freq 156.650 156.700 156.750 156.800 156.850 156.900 156.950 161.600 157.050 157.100 161.750 161.800 161.850 161.900 161.950 162.000 160.625 156.075 156.125 156.175 160.825 156.225 156.275 156.325 156.375 156.425 156.475 156.525 156.575 156.625 156.675 Canadian Marine Channels TX Freq Status Name 156.650 Simplex, 1W Bridge To Bridge 156.700 Simplex Vessel Traffic System 156.
Ch 74 75 76 77 78A 79A 80A 81A 82A 83 83A 84 85 86 87 88 RX Freq 156.725 156.775 156.825 156.875 156.925 156.975 157.025 157.075 157.125 161.775 157.175 161.825 161.875 161.925 157.375 157.425 Canadian Marine Channels TX Freq Status Name 156.725 Simplex Port Operation 156.775 Simplex, 1W Port Operation 156.825 Simplex, 1W Port Operation 156.875 Simplex, 1W Port Operation 156.925 Simplex Inter Ship 156.975 Simplex Inter Ship 157.025 Simplex Inter Ship 157.075 Simplex Canadian Coast Guard 157.
Ch 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 60 61 62 63 64 65 66 67 68 69 70 71 72 E-28 RX Freq 156.550 156.600 156.650 156.700 156.750 156.800 156.850 161.500 161.550 161.600 161.650 161.700 161.750 161.800 161.850 161.900 161.950 162.000 160.625 160.675 160.725 160.775 160.825 160.875 160.925 156.375 156.425 156.475 156.525 156.575 156.625 International Marine Channels TX Freq Status Name 156.550 Simplex Vessel traffic system 156.600 Simplex Vessel traffic system 156.
Ch 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 RX Freq 156.675 156.725 156.775 156.825 156.875 161.525 161.575 161.625 161.675 161.725 161.775 161.825 161.875 161.925 157.375 157.425 International Marine Channels TX Freq Status Name 156.675 Simplex Port operation 156.725 Simplex Port operation 156.775 Simplex, 1W Port operation 156.825 Simplex, 1W Port operation 156.875 Simplex Port operation (ship-ship) 156.925 Duplex Port operation 156.975 Duplex Port operation 157.025 Duplex Port operation 157.
Regulations and Safety Warnings WARNING! Read this information before using the radio. Maritime Radio Services Operation Warning! This transmitter will operate on channels/ frequencies that have restricted use in the United States. The channel assignments include frequencies assigned for exclusive use of the U.S. Coast Guard, use in Canada, and use in international waters. Operation on these frequencies without proper authorization is strictly forbidden.
has responded after 5 minutes, you must respond to the distress call. Do not make false mayday or distress calls as a prank or to test your radio. (This is essentially like making a false 9-1-1 call; you may be subject to fines.) FCC/Industry Canada Information Certification: FCC Part 80 or RSS-182 Output Power: 5W Emission: 16K0F3E Transmitter Frequency Range: 156.025-157.425 MHz This device complies with Part 15 of the FCC Rules.
Use only the supplied or an approved antenna. Unauthorized antennas, modifications, or attachments could impair call quality, damage the radio, or violate FCC regulations. Do not use the radio with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor burn may result. Please contact your local dealer for a replacement antenna. Body-Worn Operation This device was tested for typical body-worn operations using the supplied belt-clip.
below -4°F (-20°C) or above +140°F (+60°C). Exposing the chemical contained within the battery pack to temperatures above +140°F (+60°C) may cause the battery to rupture, fail, or reduce performance. In case of exposure to the cell contents, wash the affected area thoroughly, and seek medical attention. Three Year Limited Warranty WARRANTOR: UNIDEN AMERICA CORP.
OTHER WARRANTIES OF ANY NATURE WHATSOEVER, WHETHER EXPRESS, IMPLIED OR ARISING BY OPERATION OF LAW, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow this exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you.
QUESTIONS? Visit our website at www.uniden.com or call 1-800-297-1023. QUESTIONS? Contactez-nous au www.uniden.com ou appelez 1-800-297-1023.
