Uniden America UT645 PORTABLE VHF PTT MARINE RADIO TRANSCEIVER User Manual Rev

Uniden America Corporation PORTABLE VHF PTT MARINE RADIO TRANSCEIVER Rev

Contents

User Manual Rev

RADIO VHF MARITIME FLOTTANTEGUIDE D’UTILISATIONFLOATING VHF MARINE RADIOOWNER’S MANUALMHS235
Lift the red cover. Press and hold the DISTRESS button for three seconds. Your radio transmits  your boat’s location every few minutes until you receive a response.#Enter User MMSISpeak slowly - clearly - calmly.For future reference, write your boat’s name & call sign here: 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 16/9-TRI 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.  Repeat “MAYDAY {name of your boat}” once.6.  Tell where you are: (what navigational aids or landmarks are near, or read the latitude and longitude from your GPS). 7.  State the nature of your distress (e.g. are you sinking, medical emergency, man overboard, on fire, adrift, etc. ).8.  State the type of assistance you need (medical, towing, pumps, etc.).9.  Give number of persons aboard and conditions of any injured persons. 10.  Estimate present seaworthiness of your ship (e.g. how immediate is the danger due to flooding or fire or proximity to shore). 11.  Briefly describe your ship, giving ship name (e.g. “Blue Duck is 32 foot cabin cruiser, white hull, blue deck house”). 12.  Say: “I WILL BE LISTENING ON CHANNEL 16.” 13.  End message by saying “THIS IS {name or call sign of your boat}, OVER.” 14.  Release the PUSH TO TALK button and listen. Lift the red cover and press the red DISTRESS button underneath.
Soulevez le couvercle noir. Maintenez Distress enfoncé pendant trois secondes. Votre radio transmettra l’emplacement de votre bateau toutes les quelques minutes jusqu’à ce que vous receviez une réponse.#Enter User MMSIFaire un appel de détresseParlez lentement – clairement – calmement.Pour toute référence ultérieure, écrivez ci-dessous le nom et l’indicatif d’appel de votre bateau: 1.  Vériez si votre radio est en marche. 2.  Appuyez sur la touche 16/9-TRI an de commuter au canal 16 (156,8 MHz). (Si le canal 16 n’apparaît pas à l’afchage, appuyez de nouveau sur la touche 16/9-TRI jusqu’à ce qu’il soit afché.) 3.  Appuyez sur le bouton Push-to-Talk et dites:“MAYDAY -- MAYDAY -- MAYDAY”. 4.  Donnez l’identité de votre navire en disant : “ICI {nom de votre bateau (trois fois) ou indicatif d’appel et le numéro d’identication de votre bateau (une fois)}”. 5.  Dites “MAYDAY {nom ou indicatif d’appel de votre bateau} une fois”. 6.  Donnez votre position : (quels sont les points de repère ou aides à la navigation près de vous ou lisez les coordonnées de longitude et de latitude apparaissant sur votre dispositif GPS). 7.  Révélez la nature de votre détresse (par exemple, nous sommes en train de couler, urgence médicale, un homme à la mer, un incendie, nous sommes à la dérive, etc. 8.  Révélez la nature de l’aide désirée (médicale, remorquage, essence, etc.)9.  Donnez le nombre de personnes à bord et les conditions des blessés, s’il y en a. 10.  Donnez la condition de navigabilité actuelle de votre navire, tel que le degré de l’urgence par rapport une inondation, et une incendie. 11.  Donnez une brève description de votre navire en donnant le nom du bateau (par exemple, “Blue Duck est un yacht de croisière de 32 pieds, avec une coque blanche et un roufe bleu.). 12.  Dites : “JE VAIS ÉCOUTER SUR LE CANAL 16”. 13.  Terminez le message en disant “ICI {nom ou indicatif d’appel de votre bateau}, À VOUS”. 14.  Relâchez le bouton Push-to-Talk du microphone et écoutez. Soulevez le couvercle noir et appuyez sur le bouton rouge Distress en dessous.
Introduction ................................. E-1Features ........................................ E-1Getting Started ............................ E-3What’s included ............................. E-3Parts of the MHS235 ..................... E-3Front view ....................................E-3Back view ....................................E-4Charger ......................................... E-5Reading the display ...................... E-5Display icons and what  they mean ...................................E-5How It Works ............................... E-6Displays ........................................ E-6Menus ........................................... E-6MENU/CALL Menus ...................... E-6Normal Menu ...............................E-6Radio Setup Menu........................E-7Call Menu .....................................E-7DSC Setup Menu .........................E-8GPS Menus .................................E-8GPS Setup Menu .........................E-8Operation Modes .......................... E-9Normal .........................................E-9Scan ..........................................E-10Weather ..................................... E-11 Setting Up the Hardware ......... E-12Attaching the Antenna ................. E-12Installing the Battery ................... E-12Using Rechargeable Batteries .... E-12Mounting the Charger ................. E-13Charging the Battery ................... E-13Important notes on charging  the battery .................................E-13Setting Up Your Radio .............. E-13Turning It On  .............................. E-13Entering the User MMSI .............. E-13Setting It Up ................................ E-14Acquiring GPS Location ............E-14Changing the Volume  ...............E-14Setting the Squelch Level ..........E-14Setting the UIC Channel     Mode (USA/CAN/INT) ............E-14Setting Key Lock........................E-15Setting WX Alert Mode ..............E-15Setting FIPS Codes ...................E-15Adjusting the Lamp ....................E-15Adjust the LCD Contrast ............E-15Setting the Air or Water    Temperature Measurement ....E-15Turning the Key Beep     On and Off .............................E-16Operating the Radio  ................... E-16Making a Transmission ..............E-16Changing the transmission     level........................................E-16Changing the Channel ...............E-17Saving the Channel into     Memory ..................................E-17Using the Strobe/Flashlight .......E-17Digital Selective Calling  Features  ................................E-17What is DSC?  ............................ E-17Advanced DSC features  ............ E-17MMSI Numbers ........................... E-18Entering MMSI numbers  ...........E-18Entering Your User MMSI     Number  .................................E-19Entering a group MMSI     number ...................................E-19Entering an individual MMSI     number ...................................E-19Using the Directory ..................... E-20Making DSC Calls ....................... E-20
E-1Uniden MHS235 Radio Owner’s ManualCalling a single station     (Individual Call)  .....................E-22Calling a particular group     of stations (Group Call) ..........E-22Calling all stations     (All-Ships Call) .......................E-22Making an automatic distress call E-23Canceling an automatic     distress call  ...........................E-23Receiving a DSC call .................. E-23Receive log ................................E-23Returning a call from the     Receive Log  ..........................E-24Test Calls .................................... E-24Making Test Calls (Test)  ...........E-24Receiving Test Call Setup ..........E-25Position Request and Reply ........ E-26Enabling Automatic     Position Reply ........................E-26POS Request.............................E-26Position Reply............................E-27Position Send  ...........................E-27Putting the radio into standby  .... E-27Disabling automatic channel     switching .................................. E-28GPS Features ............................ E-28GPS Operation Overview ............ E-28MOB Menu .................................. E-28Favorite Menu.............................. E-28NMEA Features ......................... E-29ADDITIONAL FEATURES ......... E-30Renaming Channels  .................. E-30Maintenance and     Troubleshooting ................. E-31Common Questions .................... E-31Specications ........................... E-31Channels and     Frequencies (MHz) ................... E-32US channel frequencies     and names .............................E-32Canadian channel frequencies     and names .............................E-34International channel     frequencies and names..........E-35Weather channel     frequencies and names.........E-37Regulations and  Safety Warnings .................... E-38Maritime Radio Services     Operation ................................. E-38Basic Radio Guidelines ............... E-38Three Year Limited  Warranty ................................. E-39Your radio provides the following key features: xSubmersible design. Complies with oating JIS8/IPX8 water-resistant standards, which means the radio can be submerged in 1.5 meters of water for 1 hour without damage.#The radio will only meet this rating if fully assembled and all rubber seals and bungs are well maintained and correctly tted. This means that the speaker microphone bung is inserted, and the battery pack (or case) and antenna are attached and securely fastened.
E-2 Uniden MHS235 Radio Owner’s ManualAfter your radio is submerged in water, the sound might be distorted. This is because there is still water remaining in and around the speaker and microphone. Just shake the radio to clear excess water, and the sound should return to normal.If your radio is exposured to salt water, clean it thoroughly with fresh water and dry it before turning it on.The charger is not waterproof.  xMemory Scan mode. Lets you save channels to memory and monitor them in quick succession.  xTransmitter power level select. Lets you boost the transmitter power from 1W to 2.5 or 6W for added transmission distance. xBattery level display and low battery alert. xDual and Triple 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. xAll marine VHF channels for the U.S., Canada, and international waters xEmergency 16/09 Channel monitoring. Set unit to scan one or both of these emergency channels regularly within normal scanning cycles. xClass D second receiver is dedicated to monitoring the DSC watch channel 70 to ensure that no incoming messages are missed. xNational Oceanic and Atmospheric Administration (NOAA) Weather Channel watch. Sounds a warning tone when a hazard alert is issued. xSOS Strobe/Flashlight. A high intensity strobe LED can be set to blink an SOS pattern or to be steady on. xTemperature. The thermal sensor lets you measure both water and air temperature. You can display temperature in Farenheit or Celsius. xKey Lock. Locks keys to prevent accidentally changing channels or entering data. xSelectable Backlight Timer. Lets you select the length of time the backlight will be on. xReversable LCD. You can change the display from light characters on dark background to dark characters on light background. xDSC. Lets you call other stations or groups using their unique identication code. This radio complies with International Class D DSC standards for Handheld GPS/VHF marine transceivers. xGPS (Favorite Position mode). Lets you to save your current position as well as manually enter other positions.You can save positions into a directory to return to them as desired. xNMEA input/output. Lets you connect to a chartplotter and determine what NMEA data you want to receive. x9 weather channels available for monitoring. xBoost. Allows you to instantly transmit at a full 6 Watts.  xMOB (Man Overboard). Lets you lock onto the current position when a Man Overboard situation occurs.  xCompass Display. Lets you determine the way you want the radio to display your course - by showing your course and direction or by showing location on an north-south-east-west display. Automatically auto-plots to a received DSC distress call.
E-3Uniden MHS235 Radio Owner’s Manual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.Front viewButton Press to... Press and hold to...Push -to-Talk N/A Transmit on a current TX power.Boost N/A Boost TX to 1.5w (NiMH rechargeable batteries) or 6W (TX power).16/9-Tri1st press: Go to CH 16.2nd press: Go to CH 9.3rd press: Go back to the starting channel.Turn Triple or Dual Watch mode on and off. ▲ / ▼Scroll up or down through one channel and data at a time when in Marine or Menu mode.Quickly scroll up or down through channels and data when in Marine or Menu mode.AntennaMHS235 RadioCharging CradleAC Adapter DC AdapterAccessory Battery Tray(batteries notincluded)Lithium Ion Rechargeable BatteryNot shown:  External speaker/microphoneBelt ClipWrist StrapMounting HardwareAntennaCLR/SCAN button16/9-Tri (16/9- triple watch) buttonPowerMicrophone/Speaker connectionPush-to-talk  buttonSpeakerDistress buttonVOL/SQ buttonWX/SOS buttonSTROBE/FLASHLIGHTLEDMENU/CALL buttonGPS/MEM buttonNote: Thermal sensor on back.DISP/ENTER- H/M/L buttonMicrophoneUP/DOWN buttonsLCD DisplayBOOST button
E-4 Uniden MHS235 Radio Owner’s ManualButton Press to... Press and hold to...WX/SOS◄  -Turn Weather mode on and off. -Return to last marine channel. -Move cursor to the left while in Menu mode. -Return to previous menu.Turn on the strobe SOS signal. Press and hold again to change to the ashlight. Press and hold again to turn off the LED. MENU/CALL Access the Normal menu. Access DSC call menu.DISP/ENT H/M/L/ -Scroll through the 5 available information display menus. -Select menu items. -Return to normal Marine mode when Marine channel list is displayed.Change the TX power between LO  (1W), MID (2.5W), and 6W (HI).CLR/SCAN Exit menu screens. Enter or exit Scan mode.GPS/MEM► -Enter or exit GPS menu. -Move cursor to the right while in Menu mode.Store or delete the current channel into memory.VOL/SQ Enter or exit Volume Setting mode. Enter or exit the Squelch setting mode.Power Turn MHS235 on and off.Distress Sends out emergency signal.Back viewBelt clipBatteryBattery charging contactsBattery latch
E-5Uniden MHS235 Radio Owner’s ManualThe LCD display shows different information depending on what you are doing. Not all icons display on every screen. This dummy screen displays many of the possible icons. The table below shows possible icons and what they mean.Display icons and what they meanIcon What it means The keys are locked. Weather Alert Watch is turned on.The battery is fully charged, mostly charged, half charged, mostly empty, or completely empty.BRG Bearing from boat’s position to destination from Favorite’s list.COG Current course (Course over Ground). COG displays when Favorite mode or Compass mode is active, or when a DSC distress call is received.DIST Distance from boat’s position to destination.LOW / MID / HI The transmitter power is set to LOW (1W), MID (2.5W), or HI (6W).USA / CAN / INT Indicates Channel mode: US, CANadian, or INTernational channels.MEM The current channel is saved in memory.˚F/ ˚C Temperature display is active (Farenheit or Centigrade).Valid GPS data received from the GPS receiver.No valid GPS data received from the GPS receiver.Charging contactsCHARGE LEDScrew holes for mountingPower jack[cigarette (DC) or wall (AC) plug]Charging latchesNMEA contactsA Weather Alert Watch is onCurrent channel numberThis channel is in MemoryBattery statusChannel name GPS dataKeylock is activeHIMEMUSA87˚F11:00AM   35˚    40.610 N139˚    46.564 ECOMMERCIALTimeChannel modeAmbient temperature Transmit power level
E-6 Uniden MHS235 Radio Owner’s ManualIcon What it meansCXOFF Automatic Channel Switch when receiving a DSC call is off.NESWACompass icon shows when a DSC distress call has been received, a Favorite location has been selected, or the Compass main display screen has been selected.Position mark. Indicates the target point.Press the DISP/ENT H/M/L key to display the following screens: xMarine mode xPosition mode xFavorite mode xCompass mode xTemperature mode xGPS Status modeThe last screen displayed will display again the next time the unit is powered up.Various menus let you establish guidelines and parameters for sending and receiving calls. Menus also let you set your radio’s characteristics such as brightness, Code selection, and contrast. The MENU/CALL button accesses menus that let you set the way your radio operates. The GPS/MEM button lets you set up your GPS features and save GPS locations to a favorites list to use again later.MENU/CALL You can set up the radio’s physical displays and operation modes (Normal menu) and how you want to receive and send various types of calls (Call menu), The Normal menu provides access to the Radio Setup submenu and the Call menu provides access to the  DSC Setup submenu.Normal MenuPress MENU/CALL to display the following Normal menu options:Menu Option What it doesWX Alert Enables the WX Alert fuction.FIPS Codes 30 FIPS codes for use with S.A.M.E. to ensure only the local alerts are heard.
E-7Uniden MHS235 Radio Owner’s ManualMenu Option What it doesDual/TriWatch Sets the radio for Dual Watch or Triple Watch.USA/CAN/INT Selects which channels and frequencies your radio will communicate with (USA, Canadian, or International)Channel Name 12 characters that allow custom channel names to be used.Key Lock Locks the keypad so the selected channel is not accidentally changed.Radio Setup Select this option from the Normal menu to set up the radio itself. Radio Setup MenuUse this option from the Normal menu to set up physical requirements for the radio. The menus options are:Menu Option What it doesLamp Adjust Set the backlight always off, timer, or always on.Contrast/RVS. You can adjust the brightness of the screen contrast higher or lower through 10 levels. Once you get to the bottom limit of the contrast, selecting it again reverses the contrasts.Temperature Set the air and water temperature reading to display in degrees Farenheit or Celcius. Key Beep Set unit to sound a beep tone with each key press (ON/OFF).Call MenuPress and hold MENU/CALL to set the technical requirements for DSC function operations through the Call menus. The menu options are:Menu Option What it doesIndividual Sends an individual call to an individual station.Group Sends a call to a group.All Ships  Sends URGENCY or SAFETY message to all ships.POS Request Requests the position of an individual vessel.Position Send Transmits your position to an individual vessel.Test Sends a test call.Standby Places the radio in an unattended mode. Receive Log Displays a list of all received calls to the radio. The MHS235 stores log data for 10 distress calls and 50 other calls.DSC Setup Allows the user to set up Digital Selective Calling (DSC) service.
E-8 Uniden MHS235 Radio Owner’s ManualDSC Setup MenuThis menu sets up DSC parameters.. The menu options are:Menu Option What it doesDirectory Displays a list of up to 20 vessel IDs. Provides a means of entering a new vessel ID. Auto CH SW Select ON or OFF to enable/disable Automatic Channel Switch. Auto CH SW lets you automatically change channels if an Urgent or Safety DSC call comes in.POS Reply Lets you elect to respond automatically or manually.Test Reply Lets you elect to respond to a test request automatically or manually.Group MMSI Allows you to program the 9-digit Group MMSI setting.User MMSI Allows you to program the 9-digit User MMSI setting.GPS MenusPress GPS/MEM to congure the GPS module through the GPS menu. See page E-28 for details.Menu Option What it doesMOB (Man Overboard)Instantly saves your current position to the top of the Favorites list.Favorite Allows you to select a GOTO location and add new GOTO coordinates and name them.GPS Setup Sets up how the GPS will operate.GPS Setup MenuThis menu sets up GPS module parameters.. The menu options are:Menu Option What it doesUnit Power Allows you to turn the GPS module on or off to conserve battery life.Power save Turns the Battery Save feature on or off.Time Adjust Allows you to adjust to local time.Daylight Save Allows you to turn Daylight Davings Time on or off.SOG Unit Lets you set the Speed Over Ground measurement in knots, miles per hour, or kilometers per hour.Compass Set Compass display setting to either Course-Up or North Up.NMEA Out Allows you to select any or all of the following NMEA sentences for output: GGA, GSA, GSV, and RMC. The DSC and DSE sentences are always sent.
E-9Uniden MHS235 Radio Owner’s ManualYour radio has three main operation modes: Normal, Scan, and Weather.Mode What it does Use it when you want to... To turn it on/offNormal Monitors a single marine channel and lets you talk on that channel.Monitor a channel or talk to another radio. (default mode)Scan Monitors all the channels you save into memory.Check a small group of regularly-used channels for trafc.Press and hold CLR/SCAN for 2 sec.Weather Monitors the selected NOAA weather channel.Hear the current or forecasted weather. Press WX/SOSIn addition to the three operation modes, your radio provides four different watch modes which you can activate during any operation mode. In the watch modes, the radio briey checks for activity on a specic channel, then returns to its previous operation.Watch mode What it does To turn it on/offWeather Alert WatchChecks the last-used weather channel for hazard alerts every few seconds.Select on or off from the Normal/WX Alert menu.Dual Watch Checks emergency channel 16 for activity every few seconds.Select dual watch from the Normal/Dual/TriWatch menu and press and hold 16/9-Tri for 2 seconds.Triple Watch Checks emergency channels 16 and 9 for activity every few seconds.Select triple watch from the Normal/Dual/TriWatch menu and press and hold 16/9-Tri for 2 seconds.#Normal xTo transmit, remove the radio from the charger, then press and hold Push to Talk. Release the button when you are nished talking.  xFor the best sound quality, hold the microphone about two inches from your mouth while you’re talking. xPress Channel Up to move up one channel at a time. Press and hold the button to scroll quickly up the channels.  xPress Channel Down to move down one channel at a time. Press and hold the button to scroll quickly down the channels.  xTo change the transmit power, press and hold DISP/ENT H/M/L. The transmit power cycles through LOW (1W), MID (2.5W), and HI (6W), then back to LOW again. Press BOOST on the left side of the radio to boost the transmit power to 6W (Lithium Ion battery) or to 1.5W (NiMH batteries).#
E-10 Uniden MHS235 Radio Owner’s ManualNormal Mode with Weather Alert WatchIf you activate Weather Alert Watch while operating in Normal mode, the radio checks the most recently used weather channel every seven seconds. If it detects a weather or other hazard alert, it will switch to that weather channel. (If you are actively transmitting, the radio waits until you nish your transmission before checking the weather channel.)Normal Mode with Triple Watch or Dual WatchIf you activate Triple Watch while operating in Normal mode, the radio checks channels 16 and 9 every few 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 nished and then checks the channels.ScanYou can save any channel (except Weather 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. Using the Radio in Scan Mode  xTo activate Scan mode, press and hold CLR/SCAN. The radio scans channels in memory.  xYou must have at least two channels in memory to start a scan. xYou cannot transmit while in Scan mode. xTo save a channel into memory, select the channel, then press and hold the GPS/MEM button. The MEM icon displays whenever you tune to that channel. xTo remove a channel from memory, set the radio to that channel, then press and hold the GPS/MEM button. The MEM icon no longer displays. xWhen the radio stays on a channel, press Channel Up to leave that channel and resume scanning. xTo end the scan, press and hold the CLR/SCAN button again; the radio remains on the last scanned channel. You can also press WX/SOS to change to Weather mode.Scan Mode with Weather Alert WatchWhen you activate Weather Alert Watch through the Normal menu while in Scan mode, the radio checks the most recently-used weather channel every seven seconds, then continues scanning the next channel in memory:wxEvery 7 seconds, the radio checks the last-used weather channel.WX Alert Watch onMonitoring Channel 25111008 1312 14 1715The radio scans about 5 channels in 0.3 seconds.When it detects a signal, the radio stays on the channel until you press the Channel Up button or the signal stops. Resume scan
E-11Uniden MHS235 Radio Owner’s ManualScan Mode with Triple Watch or Dual WatchIf you activate Triple Watch (press and hold 16/9 TRI) while operating in Scan mode, the radio checks channels 16 and 9 every two seconds, then goes on to scan the next channel in memory. With Dual Watch turned on, the radio only checks channel 16:  Press 16/9 TRI again to cancel Triple Watch mode.Both Weather Alert and Triple/Dual Watch in Scan modeYou can activate Weather Alert Watch and Triple/Dual Watch at the same time. Press and hold 16/9 TRI to turn on Triple Watch; turn on WX Alert through the Normal menu. The radio performs both checks at their scheduled time: WeatherThe 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 9 NOAA weather channels. If a weather alert signal is received in Weather Alert mode, the radio sounds an alert tone and the display blinks. Using the Radio in Weather Mode xYou cannot transmit while in Weather mode. xTo enter Weather mode, press WX/SOS.  xTo turn off the radio’s alert tone, press any button. xTo cancel Weather mode and return to the previous marine channel, press WX/SOS again. Weather Mode with Weather Alert WatchIf you activate Weather Alert Watch through the Normal menu while operating in Weather mode, it operates as a type of “sleep mode:” the radio stays on the weather channel and Every 7 seconds, the radio checks the last-used weather channel, then scans the next channel. wxWX Alert Watch onMemory Channel Scan08 252417151413121110 200916Every 2 seconds, the radio checks channels 16 & 9, then scans the next channel.Triple Watch onMemory Channel Scan08 252417151413121110 20Every 2 seconds, the radio checks channels 16 & 9, then scans the next channel.Triple Watch onEvery 7 seconds, the radio checks the last-used weather channel, then scans the next channel. wxWX Alert Watch onMemory Channel Scan08 252417151413121110 200916
E-12 Uniden MHS235 Radio Owner’s Manualmutes the speaker. If an alert is detected, the radio sounds an alert tone and turns the speaker back on. This mode is very useful when you are anchoring for the night but want to keep informed of hazards. Weather Mode with Triple Watch or Dual WatchIf you activate Triple Watch (press and hold 16/9 TRI)while operating in Weather mode, the radio checks channels 16 and 9 every few seconds; with Dual Watch turned on, the radio only checks channel 16.The antenna detaches from the radio for easy shipping or storage. To attach the antenna to your radio, screw it tightly onto the anchor post at the top of the radio. Your radio comes with a rechargeable Lithium Ion battery; for shipping safety, the battery is not installed at the factory. An empty accessory battery tray is installed as a placeholder.1.  Insert the hook on the battery into the notch at the top of the battery compartment.#2.  Lower the battery until it rests at in the compartment.3.  Bring the battery latch up and snap it into place.The radio also comes with an accessory battery tray that holds four AAA-type NiMH rechargeable batteries (not included). You can use rechargeable batteries as a backup when the Li-Ion battery (Uniden BT-895 or equivalent, 1.2V 900mAh) gets low and needs to be charged.#rechargeableFollow these steps to use the accessory battery tray:1.  Hold the lower part of the tray in one hand with the three battery contacts facing down. Use your thumb to hold the notch on the lower part of the tray.2.  With your other hand, grip the upper part of the tray and lift the cover open. 3.  Align the batteries’ positive and negative terminals with the drawing on the case and snap each battery into place.4.  Insert the two hooks on the lower part of the tray into the notches on the cover; close the cover. (The cover ts snugly but you should not have to force it closed.)5.  Install the accessory battery tray in your radio just as you do the Li-Ion battery (see page E-12).Every 2 seconds, the radio checks channel 16, then channel 9with Triple Watch on0916 0916 0916Monitoring Weather Channel WX08
E-13Uniden MHS235 Radio Owner’s ManualYou can mount the charger on any at surface.1.  Use the two holes at the base of the charger as a template to mark the drill holes. 2.  Using a 1/8-inch (or 3 mm) drill bit, drill two holes 1/2 inch (13mm) deep.3.  Use the provided screws to attach the charger to the surface.#Your radio includes a charger and a rechargeable battery pack.  Place your radio in the charger with the display facing forward.  Make sure that the CHARGE LED on the charger turns orange. The battery is fully charged when the LED turns green.     xUse only the battery and charger supplied with this radio. Using a different charger or battery can damage the radio and create a risk of re or shock. xThe 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). xWipe 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 baery xCharge the battery fully before using the radio.  xDon’t use the charger when the ambient temperature is below 0° C (32° F) or above 45° C (113° F). xIf the radio is powered down, the battery can charge in about seven hours. (If the radio is powered on, the battery takes longer to charge.)Press the POWER button for at least two seconds to turn the radio on. Press and hold it to turn the unit off.When you power up your radio for the rst time, it displays MMSI Not Entered and then displays a Marine mode screen. User MMSI numbers are unique and cannot be entered more than once. See page E-18 for general information about MMSI numbers and how to get
E-14 Uniden MHS235 Radio Owner’s Manualyour specic User MMSI number and enter it.#Even though you can change your radio’s settings at any time, you will probably want to establish initial settings when you have turned it on for the rst time. You will adjust some of these settings on an as-needed basis, but some settings might only be set once and not need adjustment at all. Acquiring GPS LocaonThe MHS235 automatically acquires your current GPS location when it is turned on. Turn on the radio and point the antenna towards the sky. It will triangulate your location and save it.#Changing the Volume To change the speaker volume, press VOL/SQ to enter Volume Setting mode.The VOL and SQ icons display at the bottom of the screen (VOL blinks). Press Channel Up or Channel Down to increase or decrease the volume levels (0 - 15).Seng the Squelch LevelThe MHS235 recognizes signals as transmissions if they exceed a signal strength threshold. Adjusting the squelch sets this threshold level. Increasing squelch requires a signal to be stronger to be seen as a transmission. If you set the squelch too high, you will risk not receiving transmissions that are lower than that threshold. Reducing the squelch allows weaker signals to be accepted. However, if you lower the squelch too much, you will hear white noise all the time.The squelch feature reduces static on the speaker by ltering out any background channel noise. At the lowest squelch level, the speaker plays all signals, including any channel noise. Setting the squelch level higher lters out noise and lets only actual radio transmissions through. While listening to a channel, press and hold VOL/SQ to enter Squelch Setting mode. The VOL and SQ icons display at the bottom of the screen (SQ blinks). Press Channel Up or Channel Down to increase or decrease the squelch levels (0 - 15).#Seng the UIC Channel Mode (USA/CAN/INT)You can select marine channels for the USA, Canada, or International waters. 1.  Press MENU/CALL. The Normal menu displays.2.  Select USA/CAN/INT and press DISP/ENT H/M/L. The USA/CAN/INT screen displays.3.  Select the mode you want and press DISP/ENT H/M/L.
E-15Uniden MHS235 Radio Owner’s ManualSeng Key LockYou can lock the keypad through the Normal menu. The   icon displays when Keylock is on. Unlock it by pressing and holding MENU/CALL for 2 seconds.Seng WX Alert ModeFrom the Normal menu, select WX Alert mode to turn this mode ON for the radio to monitor weather channels and alert you to any broadcast weather alerts or notications. Turn WX Alert OFF through the Normal menu as well.Seng FIPS CodesFIPS codes identify counties in the United States. FIPS codes allow you to receive only the SAME alert occurring in a specic area. You can enter a maximum of 30 FIPS codes. #1.  Press MENU/CALL to bring up the Normal menu. 2.  Select FIPS Codes.3. [New] and a list of previously entered FIPS codes display. Enter a new FIPS code or select from the list of existing FIPS codes to edit or delete.Adjusng the LampThe backlight LCD function can be set to automatically dim after a set time.1.  Press MENU/CALL and select Radio Setup/Lamp Adjust. 2.  Lamp Adjust options are Always Off, Timer, or Always On.3.  If you select Always On, the next screen lets you choose between Green and Orange.If you select timer, the options are x10 sec x30 sec x1 min x3 min x5 minAdjust the LCD ContrastThis feature lets you adjust the LCD’s contrast level. It also permits you to reverse the contrast completely. You can choose to have dark characters on a light background or light characters on a dark background. 1.  Press MENU/CALL and select Radio Setup/Contrast/RVS; press Channel Up or Channel Down to adjust the contrast.2.  Pressing Channel Down to turn the contrast all the way off will reverse the background/letters.Seng the Air or WaterTemperature Measurement You can set the temperature to display in Celsius or Farenheit.1.  Press MENU/CALL and select select Radio Setup/Temperature.2.  Temperature options are °C (Celsius) or °F (Farenheit).
E-16 Uniden MHS235 Radio Owner’s Manual#Turning the Key Beep On and OKey beep is the tone that sounds when you press a key or a button. Press MENU/CALL to bring up the Normal menu. Select Radio Setup/Key Beep. Press Channel Up or Channel Down to turn the key beep on or off.Making a TransmissionSelect the channel you want to transmit on, then press and hold the Push to Talk button. Release the Push to Talk button when you’re nished talking to let the other party respond.  xTo prevent stuck microphone problems or situations where the Push to Talk button is pushed accidentally, the radio limits your talk time to 5 minutes in a single transmission. xFor the best sound quality, hold the microphone about two inches away from your mouth. xSee page E-23 for a list of receive-only channels.Changing the transmission levelIn most situations, 1W transmission power is all you need. If you nd yourself far away from other stations and have trouble getting a response, you may need to increase the transmission power. If your radio is powered by a Li-Ion battery, you can press and hold the BOOST button to transmit at 6W; however, NiMH battery power boost is limited to 1.5W. To increase the transmission power in increments: 1.  Select the channel you want to transmit on. 2.  Press and hold DISP/ENT H/M/L to switch to the next transmission power level (for example, from 1W to 2.5W, from 2.5W to 6W, or from 6W back to 1W). Current power level (W)Press and hold DISP/ENT H/M/L to change to... (W) Displays1 2.5 MID2.5 6 6W6 1 LO 3.  The display shows the new transmission power as 6W, MID, or LOW. The transmit power remains at the new setting until you change it again.#Some channels (for example, channels 13 and 67) limit the transmission power to 1W. When you tune to a limited-power channel, the radio automatically switches to 1W. See page E-33 for a list of power-restricted channels.
E-17Uniden MHS235 Radio Owner’s ManualChanging the ChannelPress the Channel Up and Channel Down buttons briey to scroll through the channels one channel at a time. Press and hold the Channel Up or Channel Down buttons to quickly scroll through the channels.Saving the Channel into MemoryPress and hold GPS/MEM. MEM displays on the screen to indicate that that channel is now stored in memory. Press and hold GPS/MEM again to remove the channel from memory.Using the Strobe/FlashlightYou can use this radio in an emergency. If you press and hold WX/SOS, the radio turns on the high-intensity LED strobe on your radio. The LED ashes “S O S” in international Morse Code. #1.  Press and hold WX/SOS. The LED lights in the SOS Morse Code pattern. 2.  Press and hold WX/SOS again. The LED stays on.3.  Press and hold WX/SOS again. The LED goes off.Digital Selective Calling (DSC) is a standard that allows you to call other stations using their unique identication code (the Maritime Mobile Service Identity or MMSI number), just like you would call a phone number. To call another station, just enter that station’s MMSI number and choose the voice channel you want to talk on. The radio uses channel 70 to transmit your MMSI number to the other station along with the voice channel you requested. If the other station accepts your call, both radios automatically switch to the requested voice channel so you can talk to the other station. DSC provides a system for automated distress calls. At the touch of a button, the radio can transmit your MMSI number, the nature of your distress, and your current position based on data from your GPS receiver. The radio repeats the distress call every few minutes until it receives an acknowledgement. The DSC standard dedicates a VHF channel—channel 70—to digital transmissions only. Since digital transmissions require less bandwidth voice transmissions, channel 70 avoids the problems of busy voice channels. Your radio supports the following DSC features: Feature Menu Item FunctionIndividual Call Individual Contact another vessel from your directory.Group Call Group Contact all vessels that share your group MMSI code.
E-18 Uniden MHS235 Radio Owner’s ManualFeature Menu Item FunctionAll Ships Call All Ships Broadcast to all vessels within range (used for Safety or Urgency messages).Position Request POS Request Request the current location of another vessel.Position Send Position Send Transmit your current location to another vessel.Test Call Test Make sure your radio is working and congured correctly.Standby Mode Standby Automatically respond to all DSC calls with “Unavailable” status.Receive Log Receive Log Displays last 10 distress calls and last 50 general calls the radio received.DSC Setup DSC Setup Accesses DSC menus. -Directory -Auto CH SW -POS Reply -Test Reply -Group MMSI -User MMSIIn order to use DSC features, you must be assigned a User MMSI number and program that number into your radio. There are two kinds of MMSI numbers: individual numbers for use by single boats and group numbers for use by eets, boating organizations, event coordinators, etc. You can get more information on MMSI numbers at these resources:  xThe dealer where you purchased the radio  xRecreational boaters can obtain an MMSI number from the Boat Owner’s Association of the U.S. (http://www.boatus.com/mmsi/ or call 800-536-1536) or Sea Tow Services International (http://seatow.com/boating_safety/mmsi.asp)  xCommercial boaters need a ship station license to get an MMSI number. For more information, visit the Federal Communications Commission (FCC) website at http://wireless.fcc.gov/marine/ fctsht14.html. Entering MMSI numbers Use the Channel Up and Channel Down keys to scroll through numbers (and letters when entering names). When you see the number/letter you want, press the right arrow (GPS/MEM) to move the cursor to the next space. Press the left arrow (WX/SOS) to back up.When using the Channel Up and Channel Down keys to enter a name, the alphabetic and numeric characters display in the following order: xCapital letters (A through Z) xLower-case letters (a through z) xPunctuation (/ ‘ + -)  xNumbers (0 through 9) xOne blank space
E-19Uniden MHS235 Radio Owner’s ManualEntering Your User MMSI Number #When you power up your radio for the rst time, it displays MMSI Not Entered and then displays a Marine mode screen. 1.  Press and hold MENU/CALL; the Enter User MMSI screen displays.2.  Press DISP/ENT H/M/L. The User MMSI screen displays.3.  Enter the MMSI number as described previously to scroll through the numbers.  When the ninth digit is entered, the radio asks if you want to save the number and conrm it. Press DISP/ENT H/M/L to save it.4.  Before saving the number, the radio displays the message Conrm number! User MMSI data is Permanent! At this point you can edit the number (press MENU/CALL), save the number (press DISP/ENT H/M/L), or return to the Marine mode screen (press CLR/SCAN),Entering a group MMSI numberYou can change the group MMSI number as often as you want. The rst digit of a group MMSI is xed at “0.” Follow the steps below to enter a group MMSI number into the radio:  1.  Press and hold MENU/CALL to display the Call Menu.2.  Select DSC Setup/Group MMSI and press DISP/ENT H/M/L. The Group MMSI screen displays. 3.  Group MMSI numbers always start with a 0, so that digit is already entered for you. Enter the MMSI number as described previously.  When the ninth digit is correct, press DISP/ENT H/M/L. The radio asks you to conrm. 4.  To save this MMSI number, press DISP/ENT H/M/L. To cancel this MMSI number, press CLR/SCAN. Entering an individual MMSI numberFollow the steps below to enter individual MMSIs and names of other vessels into the directory:1.  Press and hold MENU/CALL to display the Call Menu.0________Use the up and down arrows to adjust each of the eight digits in turn.16Group MMSIBack[MENU]Exit[CLR]Save[ENT]USAPress and hold Group MMSIDSC Setup0________Use the up and down arrows to adjust each of the nine digits in turn.16MMSIBack[MENU]Exit[CLR]Save[ENT]Name USADSC SetupPress and hold [New]DirectoryCall Menu
E-20 Uniden MHS235 Radio Owner’s Manual2.  Scroll to DSC Setup and press DISP/ENT H/M/L.The DSC Setup menu displays.3.  Scroll to Directory and press DISP/ENT H/M/L. The Directory menu displays. 4.  Select [New] and press DISP/ENT H/M/L. 5.  Enter the MMSI number as described previously.  When the ninth digit is correct, press DISP/ENT H/M/L and the cursor moves to the Name eld.6.  Enter the name as described previously. When you have entered the name, press DISP/ENT H/M/L.7.  The radio displays the new MMSI number and name and asks you to conrm. To save this MMSI number and name, press DISP/ENT H/M/L To cancel this MMSI number, press CLR/SCAN.The directory lets you store up to 20 MMSI numbers of other stations so you can call them quickly. From the directory, you can edit or delete MMSI numbers. Follow the steps below to edit the MMSI numbers in your directory: 1.  Press and hold MENU/CALL to display the Call menu. 2.  Scroll to DSC Setup and press DISP/ENT H/M/L.The DSC Setup menu displays. 3.  Scroll to Directory and press DISP/ENT H/M/L.The Directory screen displays. This screen lets you add a new MMSI or edit/delete an existing MMSI. 4.  To enter a new MMSI, select [NEW] and follow the procedures for entering an individual MMSI number. 5.  To edit an existing MMSI number/name, select the entry and press DISP/ENT H/M/L.6.  Select Edit and press DISP/ENT H/M/L. The MMSI number and name display. Edit accordingly and press DISP/ENT H/M/L when complete. A conrmation screen displays.7.  Press DISP/ENT H/M/L to accept the edits or CLR/SCAN to cancel. The radio returns to the DSC Directory Edit screen. 8.  To delete the directory entry, select Delete. When you are satised with the directory list, press CLR/SCAN to close the menu screen. There are essentially four different types of DSC voice calls: Back[MENU]Exit[CLR]Save[ENT]USAMMSI123456789NameUniden16DirectoryPress and hold Select an  entryEditCall Menu/DSC Setup
E-21Uniden MHS235 Radio Owner’s ManualCall type What it does When to use itDistress Alerts all stations that you need assistance and sends them your current position.In an emergency only.Individual Calls a single station using the User MMSI. When you want to talk to another station.Group Calls all the stations that have the same Group MMSI as yours.Any time you want to talk with the whole 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:    xThroughout the race, you use group calling to update the racers on the time, race status, and any course corrections.  xA 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.  xYou 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.  All ships callGroupcallIndividualcallAll ships call
E-22 Uniden MHS235 Radio Owner’s ManualCalling a single staon (Individual Call) To call a single station with DSC, follow these steps: 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select Individual. 3.  The radio displays the names listed in your directory; use Channel Up and Channel Down to choose the directory entry you want to call and press DISP/ENT H/M/L. If you want to call a station that is not in your directory, select Manual. The radio prompts you to enter the MMSI number you want to call. Enter the MMSI number the same way you enter directory entries (see page 22) Enter all nine digits and press DISP/ENT H/M/L. 4.  The radio prompts you to select a response channel. Use Channel Up and Channel Down  to scroll through the available channels. When you reach the channel you want to use for a response, press the DISP/ENT H/M/L button. 5.  The radio displays the MMSI number you are about to call and asks you to conrm. If you want to call the displayed MMSI number, select Send (press GPS/DISP/ENT H/M/L). To cancel the call, select Exit (press CLR/SCAN).6.  The radio automatically switches to channel 70 to transmit the call request.  xWhen the other station accepts the call, both radios switch to the selected response channel for voice transmission.  xIf the other station cannot respond on the channel you selected, the radio displays Not support CH.Calling a parcular group of staons (Group Call)Group calling calls all the stations that share your group MMSI. You must have a group MMSI programmed into the radio to make a group call, and the stations (boats) you are calling must have this same group MMSI programmed into their radios. 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select Group. 3.  The radio prompts you to select a response channel. Use Channel Up and Channel Down to scroll through the available channels. When you reach the channel you want to use for a response, press DISP/ENT H/M/L. 4.  The radio asks you to conrm the call. Select Send (press DISP/ENT H/M/L) to continue with the call or select Exit (press CLR/SCAN) to cancel the call. 5.  The radio switches to channel 70 to transmit the call request then automatically switches to the designated response channel. Calling all staons (All-Ships Call)All ships calling contacts all DSC radios within range of your boat. You should only use all ships calling in the event of a Safety warning (such as debris in the water) or to request assistance in an Urgency (any situation where your vessel has a serious problem but is not yet in distress). 1.  Open the Call menu. 2.  Select All Ships, and then choose whether this is an Urgency call or a Safety call. 3.  The radio asks you to conrm the call. Select Send (press DISP/ENT H/M/L) to continue with the call or select Exit (press CLR/SCAN) to cancel the call.
E-23Uniden MHS235 Radio Owner’s Manual4.  The radio automatically switches to channel 70 to transmit the call request then automatically switches to channel 16, the designated response channel for all-ships calling. If you have programmed your MMSI number, your radio can transmit an automated distress call with your current location and nature of the distress. The radio then monitors channel 16 for a response and repeats the distress call every few minutes until it receives an acknowledgement. If you want to include the nature of your distress in the distress call, use the following distress procedure: 1.  Press DISTRESS. 2.  The radio displays the list of distress conditions; use Channel Up and Channel Down to choose the nature of your distress, then press and hold DISTRESS for three seconds.  Undesignated Sinking Fire OverboardAdrift Flooding Abandoning CapsizingCollision Piracy, Armed GroundingCanceling an automac distress call While the radio is waiting for a response, it gives you the option of canceling the call. To cancel the distress call, choose Exit and press CLR/SCAN. If your radio receives an individual DSC call from another station, it sounds an incoming call tone and displays the name/MMSI number of the station calling you. To respond to the call, select Send: Able-Comply; the radio sends an acknowledgement and automatically switches to the designated response channel. To reject the call, select Send: Unable-Comply; the radio advises the other station that you are unable to respond to the call. If the DSC request contains a response channel that you are not allowed to use, the radio displays Not Support CH; your only response option is Send: Unable-Comply. If the radio receives a group or all ships call, it sounds an incoming call tone and automatically switches to the designated response channel. Receive logJust like your telephone’s caller ID list, your radio keeps track of the calls you receive. The receive log is useful if you have been off your boat or away from your radio and want to see who has tried to contact you. The radio displays the last 10 distress calls and the last 50 non-distress calls that it received. If you have unread incoming DSC calls, the radio displays a Message icon. When you display all Distress and Other receiving logs, the message icon disappears.
E-24 Uniden MHS235 Radio Owner’s Manual1.  ress and hold MENU/CALL to display the Call menu. 2.  Select Receive Log. 3.  Select Distress to see the last 10 distress calls received by the radio. Select Other to see the last 50 normal calls received by the radio, then choose from Individual, Group, or All Ships calls. 4.  Calls are listed in the order they were received, with the newest call shown rst. The display blinks if there are new calls you have not reviewed. The Message icon also displays.5.  Select the call you want to see the details of. Use Channel Up and Channel Down to see all of the information. The log displays different information depending on type of call received. See the table below for the information stored for each type of call: DSC Call Type Receive Log InformationDistress MMSI (or name), position, time, nature code. Distress Acknowledge MMSI (or name), distress MMSI, position, time, nature code.All Ships MMSI (or name), category code, communication channel number.Group MMSI (or name), category code, communication channel number.Individual MMSI (or name), category code, communication channel number.Individual Acknowledge MMSI (or name), Completed/Unattended, category code, communication channel number.Test MMSI (or name), category code.Test Acknowledge MMSI (or name),  category code.Pos Reply MMSI (or name), position, time, category code.Pos Request MMSI (or name), category code.Pos Send MMSI (or name), position, time, category code.6.  From the log menu, select Exit to close the receive log and return to the mode you were in. Returning a call from the Receive Log You can return individual calls directly from the Receive Log. From the call detail screen, press Channel Down until Call Back appears at the bottom of the display. Press DISP/ENT H/M/L to return that station’s call. 16USADistress Log     123456789     246853790     357911135Back[MENU]Exit[CLR]Save[ENT]Press and hold Call Menu/Receive LogDistress
E-25Uniden MHS235 Radio Owner’s ManualMaking Test Calls (Test) #1.  Press and hold MENU/CALL to display the Call menu. 2.  Select Test. 3.  The radio displays the names listed in your directory; use Channel Up and Channel Down to choose the directory entry you want to send a test call to and press DISP/ENT H/M/L.4.  If you want to send a test call to a station that is not in your directory, select Manual. The radio prompts you to enter the MMSI number you want to call. Enter the MMSI number the same way you enter directory entries (see page 22). Enter all nine digits and press DISP/ENT H/M/L. 5.  The radio displays the MMSI number you are about to call and asks you to conrm. If you want to call the displayed number, select Send. To cancel the call, select Exit.  6.  The radio automatically switches to channel 70 to transmit the test call request, then switches back to the last-used channel. 7.  When the other station acknowledges the test call, the radio displays an acknowledgement screen. Receiving Test Call SetupWhen another station sends you a test call, you can select options to answer the test call manually or have the radio answer automatically.Press and hold MENU/CALL to display the Call menu. 8.  Select DSC Setup and then Test Reply. 9.  Choose Auto and press DISP/ENT H/M/L. The radio will automatically send an Test   [Manual]   JIM CASSIDY   KENT NEWMANBack[MENU]Exit[CLR]Select[ENT]16USATestPress and hold  18Test Reply   Auto   ManualBack[MENU]Exit[CLR]Select[ENT]AUSACall Menu/DSC SetupPress and hold Test Reply
E-26 Uniden MHS235 Radio Owner’s Manualacknowledgement when it receives a test call. 10.  To disable automatic test call reply, repeat the steps above and select Manual. Acknowledging Test Call ReceiptDifferent screens display depending on whether you set the Test Reply to Auto or Manual.If Test Reply is set to Auto: If Test Reply is set to Manual:18Test 123456789006/20  11:00   SafetyExit[CLR]AUSA18Test 123456789      ReplyExit[CLR]AUSASend[ENT]No action is necessary. Select Send to send a reply.Enabling Automac Posion ReplyIf you want the radio to automatically transmit your current position whenever it receives a position request, you can enable automatic position reply. Most boaters activate automatic position reply for safety reasons or because they subscribe to a marine towing service. Sometimes—for example, in some competitive situations--you may not want other stations to get your position without your manual conrmation 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select DSC Setup and then Position Reply. 3.  Choose Auto and press DISP/ENT H/M/L. The radio will automatically transmit your position when it receives a position request. 4.  To disable automatic position reply, repeat the steps above and select Manual. POS RequestAny time you need to know where another boat currently is—to nd your boating partners, to respond to a request for assistance, etc.—you can send a position request to their radio: 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select POS Request and press DISP/ENT H/M/L.3.  The radio displays the names listed in your directory; use Channel Up and Channel Down  to choose the directory entry you want to contact and press DISP/ENT H/M/L. If you want to contact a station that is not in your directory, select Manual. The radio prompts you to enter the MMSI number you want to call. Enter the MMSI number the 16POS Request   [Manual]   Norwester   HarrisBack[MENU]Exit[CLR]Select[ENT]USACall Menu/POS RequestPress and hold
E-27Uniden MHS235 Radio Owner’s Manualsame way you enter directory entries (see page 22). Enter all nine digits and press DISP/ENT H/M/L. 4.  The radio displays the MMSI number you are about to contact and asks you to conrm. If you want to request the position of the displayed MMSI number, select Send. To cancel the request, select Exit. 5.  When the other station responds, the radio displays the MMSI number, the longitude, and the latitude of the other station. If your radio is connected to a chartplotter through the NMEA OUT connection (see page 34), the position information will also be displayed on the plotter screen. 6.  If the other station does not have valid GPS data, the radio displays No Position. Posion ReplyWhen another station requests your current position, different screens display depending on whether you set Position Reply to Auto or Manual.If Position Reply is set to Auto: If Position Reply is set to Manual:16Position RequestHarris06/20  11:00RoutineExit[CLR]USA16Position RequestHarris     ReplyExit[CLR]USASend[ENT]No action is necessary. Select Send to send a reply or Exit to reject the request.Posion Send If you are requesting assistance or using an all ships call to give a safety warning, you can send your current position so other stations know where you are: 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select Position Send. 3.  The radio displays the names listed in your directory; use Channel Up and Channel Down  to choose the directory entry you want to contact and press DISP/ENT H/M/L. If you want to contact a station that is not in your directory, select Manual. The radio prompts you to enter the MMSI number you want to call. Enter the MMSI number the same way you enter directory entries (see page 22). Enter all nine digits and press DISP/ENT H/M/L. 4.  The radio displays the MMSI number you are about to contact and asks you to conrm. If you want to transmit your position to the displayed MMSI number, select Send. To cancel the transmission, select Exit. 5.  The radio transmits your MMSI number, your longitude, and your latitude to the other station.If you are leaving your radio or do not wish to answer any DSC calls, you can put your radio in standby mode. If your radio receives an individual call, it will automatically respond with
E-28 Uniden MHS235 Radio Owner’s Manuala message that indicates your radio is currently unattended. Follow the steps below to put your radio in standby:  1.  Press and hold MENU/CALL to display the Call menu. 2.  Select Standby to place your radio in standby mode. 3.  To cancel standby and return to the mode your radio was in, press any button. If you are involved in a bridge-to-bridge call, you may not  want the radio to automatically switch channels when it receives a DSC call. In cases like this, you can disable automatic channel switching. If you receive an individual call, the radio will respond with an unattended code, just as if the radio were in Standby. 1.  Press and hold MENU/CALL to display the Call menu. 2.  Select DSC Setup, then Auto CH SW.3.  Select Off and press DISP/ENT H/M/L. The radio will not automatically switch channels until you reactivate this feature. #If you have unread incoming DSC calls, the radio displays a message icon. You will be able to review who has called. The radio displays the last 10 distress calls and the last 50 non-distress calls it received (see page E-23). Your GPS system provides more than just your specic location. The MOB (Man Overboard) menu lets you immediately save your current position so rescuers can converge on the exact man overboard location. The Favorites menus let you create a directory of favorite places and their coordinates so you can easily return there. Using the GPS Setup menus, you can determine power-saving options, measurement increments, and time settings.The radio is factory-preset to search for your geographic location when it is turned on for the rst time. MOBThe MOB menu lets you quickly save your current selection so you can easily navigate back to it. It will be saved in the rst position of the Favorites list.16USAAuto CH SW    On   OffBack[MENU]Exit[CLR]Select[ENT]Press and hold Call Menu/DSC SetupAuto CH SW
E-29Uniden MHS235 Radio Owner’s ManualFAvORITEThe Favorite menu is comprised of the Goto menu and the Add menu. The Goto menu adds (saves) the current GPS position as well as recalls that position and others you have saved to sail back to it.Goto MenuThe Goto menu allows you to select from a list of saved coordinates or to input coordinates manually.To input coordinates1.  From the Goto Fav. screen, select [Manual].2.  Manually input coordinates. When the last digit is entered, the screen displays Go and Save.3.  Select Go to display the coordinates and the compass bearing and begin traveling towards that destination. 4.  Select Save to save the location into a Favorites directory. When you select Save, the screen prompts you to name these coordinates.5.  When you have entered a name for the saved coordinates, they will appear on the Goto screen as a selection.To select a Goto entry1.  From the Goto Fav. screen, select from the directory entries listed.2.  The screen displays three options: Go, Delete, and Edit.3.  Select Go to display the coordinates and the compass bearing and begin traveling towards that destination. Select Delete to delete the entry. Select Edit to change the entry.Your radio supports NMEA0183, a standard for data communication between marine instruments. If you are connected to a chartplotter and the radio receives another boat’s position data (sentences) in a DSC call, the radio sends the position data to the chartplotter so you can see the location. NMEA sentences contain different sets of data. The MHS235 supports the following sentences:DATA RMC GLL GNS GGA ZDAUTC Time OO O O O18Goto Fav.   [Manual]   UnidenBack[MENU]Exit[CLR]Select[ENT]AUSAFavoritePress Goto
E-30 Uniden MHS235 Radio Owner’s ManualDATA RMC GLL GNS GGA ZDAStatus (Valid/IInvalid) O O O O XLatitude/Longitude O O O O XSpeed O X X X XCourse O X X X XDate O X X X OThe radio can output the following NMEA sentences:GGA GSV DSC GSA RMC DSETo connect to a chartplotter: 1.  Connect the WHITE wire to the NMEA positive (+) output. 2.  Connect the BLACK wire to the NMEA ground. 3.  Connect the YELLOW wire to the NMEA positive (+) input.#If you discover that a marine radio channel has a different common name in your local area, you can change the name of that channel to make it easier for you to use (see the channel lists beginning on page E-33 for the default channel names). To rename a channel, follow the steps below:1.  Press MENU/CALL and select Channel Name from the Normal menu. The screen displays the list of channels. 2.  Use Channel Up and Channel Down to choose the channel you want to change and press DSP/ENT H/M/L. 3.  Select Rename to enter a new name for this channel. The radio prompts you to enter a new name for this channel. Each name can be up to 12 characters. Use Channel Up and Channel Down  to change the name. 4.  When you nish entering the name, the radio displays the new channel name and asks you to conrm. To save this new channel name, select Save; to cancel the WHITE - to NMEA (+) outputBLACK - to NMEA groundYELLOW - to NMEA (+) input
E-31Uniden MHS235 Radio Owner’s Manualchange, select Exit. The radio returns to the channel list. 5.  To restore a channel back to its original name, select the channel and choose Default. 6.  When you are satised with the channel list, select Exit. 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: xIf the antenna has been damaged, do not transmit except in an emergency situation. Doing so may cause further radio damage. xYou are responsible for continued FCC technical compliance of your radio. xArrange for periodic performance checks with your Uniden dealer.Problem Things to TryThe radio won’t turn on. Charge the radio.The power LED on the charger doesn’t turn on. -Don’t use the charger when the ambient temperature is below 0° C (32° F) or above 45° C (113° F). -Make sure the charging contacts on the radio and charger are clean. -Replace the battery.The radio won’t transmit. -Make sure you are not in Weather or Scan mode. -Make sure you are not trying to transmit on a receive-only channel or transmit at the wrong power level for this channel (see the channel lists starting on page E-33. -Check the battery power level; if it’s low, charge the battery before trying to transmit. -Make sure the duration of each transmission is less than 5 minutes.I can’t hear anything from the speaker. Adjust the squelch level; it is probably too high.Noise comes out of the speaker all the time Adjust the squelch level; it is probably too low.I can transmit, but no one can hear me.Check your UIC channel settings: does the area you are in use different channel assignments?I’m not getting hazard alerts. Make sure Weather Alert Watch is turned on. The display ashes, and I don’t know why.The channel number on the display will ash if the radio is in a Watch mode or in Scan mode. Try turning off scanning, Weather Alert Watch, Triple Watch, or Dual Watch beginning on page E-10.Where can I nd my radio’s serial number? The serial number is on a plate inside the battery compartment.
E-32 Uniden MHS235 Radio Owner’s ManualGeneralChannelsAll US/International/Canada marine channels9 Weather channelsFreq. Control PLLFreq. Tol. Transmit: 1.5 PPM (at 77°F/25°C)Receive: 1.5 PPM (at 77°F/25°C)Oper. Temp. -4°F (-20°C) to +122°F(+50°C)Antenna Flexible WhipMicrophone Built-in Electret typeDisplay Liquid Crystal DisplaySpeaker 8Ω 1.0 WPower Source Rechargeable Lithium Ion Battery  7.4V 1160 mAhSize (without antenna) 6.29 (H) x 2.40 (W) x 1.61 (D) inch160 (H) x 61 (W) x 41 (D) mmWeight 10.9 oz (309g) (w/battery and antenna)TransmitterFrequency Range 156~158 MHzFrequency Stability ±2.5 PPM maxPower Output 1W, 2.5W, and 6WSpurious Emissions -30 dBm @ HI; -30 dBm @ LO (nominal)Current Drain 1.5 A (6W)ReceiverType Double Conversion Super HeterodynePhase Locked Loop system for Local OscillatorFrequency Range 156~164 MHzSensitivity  0.24 μV for 12dB SINADSquelch Sensitivity Threshold 0.2μVAudio Frequency Response +5.5 dB @ 500 Hz;  -6 dB @ 2000HzAdjacent Channel Selectivity 73 dB @ ±25 kHzAudio Output Power 1.0 W @MAX VOLUMECurrent Drain Squelched: 36mA;   Max. Audio: 250mA
E-33Uniden MHS235 Radio Owner’s ManualUS channel frequencies and namesUS Marine ChannelsCh RX Freq TX Freq  Status   Name1A  156.050 156.050 Simplex Vessel trafc system/commercial5A  156.250 156.250 Simplex Vessel trafc system/commercial6 156.300 156.300 Simplex Inter-ship safety7A  156.350 156.350 Simplex Commercial8 156.400 156.400 Simplex Commercial9 156.450 156.450 Simplex Non commercial10 156.500 156.500 Simplex Commercial11 156.550 156.550 Simplex Vessel trafc system12 156.600 156.600 Simplex Vessel trafc system13 156.650 156.650 Simplex, 1W Bridge to bridge14 156.700 156.700 Simplex Vessel trafc system15 156.750 Inhibit  Receive only Environmental16 156.800 156.800 Simplex Distress, safety, and calling17 156.850 156.850 Simplex, 1W Govt maritime control18A  156.900 156.900 Simplex Commercial19A  156.950 156.950 Simplex Commercial20 161.600 157.000 Duplex Port operation20A  157.000 157.000 Simplex Port operation21A  157.050 157.050 Simplex Coast guard only22A  157.100 157.100 Simplex Coast guard23A  157.150 157.150 Simplex Coast guard only24 161.800 157.200 Duplex Marine operator25 161.850 157.250 Duplex Marine operator26 161.900 157.300 Duplex Marine operator27 161.950 157.350 Duplex Marine operator28 162.000 157.400 Duplex Marine operator63A  156.175 156.175 Simplex Vessel trafc system65A  156.275 156.275 Simplex Port operation66A  156.325 156.325 Simplex Port operation67 156.375 156.375 Simplex, 1W Bridge To Bridge68 156.425 156.425 Simplex Non Commercial69 156.475 156.475 Simplex Non Commercial70 (156.5250) (156.5250) DSC Only DSC71 156.575 156.575 Simplex Non Commercial72 156.625 156.625 Simplex Non Commercial (Ship-Ship)73 156.675 156.675 Simplex Port Operation
E-34 Uniden MHS235 Radio Owner’s ManualUS Marine ChannelsCh RX Freq TX Freq  Status   Name74 156.725 156.725 Simplex Port Operation75 156.775 156.775 Simplex, 1W Port Operation76 156.825 156.825 Simplex, 1W Port Operation77 156.875 156.875 Simplex, 1W Port Operation (Ship-Ship)78A 156.925 156.925 Simplex Non Commercial79A 156.975 156.975 Simplex Commercial80A 157.025 157.025 Simplex Commercial81A 157.075 157.075 Simplex Government82A 157.125 157.125 Simplex Government83A 157.175 157.175 Simplex Coast Guard84 161.825 157.225 Duplex Marine Operator85 161.875 157.275 Duplex Marine Operator86 161.925 157.325 Duplex Marine Operator87 157.375 157.375 Simplex Marine Operator88 157.425 157.425 Simplex Commercial (Ship-Ship)Canadian channel frequencies and namesCanadian Marine ChannelsCh RX Freq TX Freq Status Name1 160.650 156.050 Duplex Marine Operator2 160.700 156.100 Duplex Marine Operator3 160.750 156.150 Duplex Marine Operator4A 156.200 156.200 Simplex Canadian Coast Guard5A 156.250 156.250 Simplex Vessel Trafc System6 156.300 156.300 Simplex Inter-Ship Safety7A 156.350 156.350 Simplex Commercial8 156.400 156.400 Simplex Commercial9 156.450 156.450 Simplex Boater Calling Channel10 156.500 156.500 Simplex Commercial11 156.550 156.550 Simplex Vessel Trafc System12 156.600 156.600 Simplex Vessel Trafc System13 156.650 156.650 Simplex, 1W Bridge To Bridge14 156.700 156.700 Simplex Vessel Trafc System15 156.750 156.750 Simplex, 1W Environmental16 156.800 156.800 Simplex Distress, safety, calling17 156.850 156.850 Simplex, 1W State Control18A 156.900 156.900 Simplex Commercial19A 156.950 156.950 Simplex Canadian Coast Guard20 161.600 157.000 Duplex, 1W Port Operation21A 157.050 157.050 Simplex Canadian Coast Guard
E-35Uniden MHS235 Radio Owner’s ManualCanadian Marine ChannelsCh RX Freq TX Freq Status Name22A 157.100 157.100 Simplex Canadian Coast Guard23 161.750 157.150 Duplex Marine Operator24 161.800 157.200 Duplex Marine Operator25 161.850 157.250 Duplex Marine Operator26 161.900 157.300 Duplex Marine Operator27 161.950 157.350 Duplex Marine Operator28 162.000 157.400 Duplex Marine Operator60 160.625 156.025 Duplex Marine Operator61A 156.075 156.075 Simplex Canadian Coast Guard62A 156.125 156.125 Simplex Canadian Coast Guard63A 156.175 156.175 Simplex Port Operation64 160.825 156.225 Duplex Marine Operator64A 156.225 156.225 Simplex Port Operation65A 156.275 156.275 Simplex Port Operation66A 156.325 156.325 Simplex, 1W Port Operation67 156.375 156.375 Simplex Bridge To Bridge68 156.425 156.425 Simplex Non Commercial69 156.475 156.475 Simplex Non Commercial70 (156.5250) (156.5250) DSC Only DSC71 156.575 156.575 Simplex Non Commercial72 156.625 156.625 Simplex Non Commercial73 156.675 156.675 Simplex Port Operation74 156.725 156.725 Simplex Port Operation75 156.775 156.775 Simplex, 1W Port Operation76 156.825 156.825 Simplex, 1W Port Operation77 156.875 156.875 Simplex, 1W Port Operation78A 156.925 156.925 Simplex Inter Ship79A 156.975 156.975 Simplex Inter Ship80A 157.025 157.025 Simplex Inter Ship81A 157.075 157.075 Simplex Canadian Coast Guard82A 157.125 157.125 Simplex Canadian Coast Guard83 161.775 157.175 Duplex Canadian Coast Guard83A 157.175 157.175 Simplex Canadian Coast Guard84 161.825 157.225 Duplex Marine Operator85 161.875 157.275 Duplex Marine Operator86 161.925 157.325 Duplex Marine Operator87 157.375 157.375 Simplex Port Operation88 157.425 157.425 Simplex Port Operation
E-36 Uniden MHS235 Radio Owner’s ManualInternaonal channel frequencies and namesCh  RX Freq TX Freq Status Name on display1 160.6500 156.0500 Duplex Marine operator2 160.7000 156.1000 Duplex Marine operator3 160.7500 156.1500 Duplex Marine operator4 160.8000 156.2000 Duplex Marine operator5 160.8500 156.2500 Duplex Marine operator6 156.3000 156.3000 Simplex Inter-ship safety7 160.9500 156.3500 Duplex Marine operator8 156.4000 156.4000 Simplex Commercial (ship-ship)9 156.4500 156.4500 Simplex Boater calling channel10 156.5000 156.5000 Simplex Commercial11 156.5500 156.5500 Simplex Vessel trafc system12 156.6000 156.6000 Simplex Vessel trafc system13 156.6500 156.6500 Simplex Bridge to bridge14 156.7000 156.7000 Simplex Vessel trafc system15 156.7500 156.7500 Simplex, 1W Environmental16 156.8000 156.8000 Simplex Distress, Safety, Calling17 156.8500 156.8500 Simplex, 1W Govt maritime control18 161.5000 156.9000 Duplex Port operation19 161.5500 156.9500 Duplex Commercial20 161.6000 157.0000 Duplex Port operation21 161.6500 157.0500 Duplex Port operation22 161.7000 157.1000 Duplex Port operation23 161.7500 157.1500 Duplex Marine operator24 161.8000 157.2000 Duplex Marine operator25 161.8500 157.2500 Duplex Marine operator26 161.9000 157.3000 Duplex Marine operator27 161.9500 157.3500 Duplex Marine operator28 162.0000 157.4000 Duplex Marine operator60 160.6250 156.0250 Duplex Marine operator61 160.6750 156.0750 Duplex Marine operator62 160.7250 156.1250 Duplex Marine operator
E-37Uniden MHS235 Radio Owner’s ManualCh  RX Freq TX Freq Status Name on display63 160.7750 156.1750 Duplex Marine operator64 160.8250 156.2250 Duplex Marine operator65 160.8750 156.2750 Duplex Marine operator66 160.9250 156.3250 Duplex Marine operator67 156.3750 156.3750 Simplex Bridge to bridge68 156.4250 156.4250 Simplex Non commercial69 156.4750 156.4750 Simplex Non commercial70 (156.5250) (156.5250) DSC Only DSC71 156.5750 156.5750 Simplex Non commercial72 156.6250 156.6250 Simplex Non commercial73 156.6750 156.6750 Simplex Port operation74 156.7250 156.7250 Simplex Port operation75 156.7750 156.7750 Simplex, 1W Port operation76 156.8250 156.8250 Simplex,  Port operation77 156.8750 156.8750 Simplex Port operation (ship-ship)78 161.5250 156.9250 Duplex Port operation79 161.5750 156.9750 Duplex Port operation80 161.6250 157.0250 Duplex Port operation81 161.6750 157.0750 Duplex Port operation82 161.7250 157.1250 Duplex Port operation83 161.7750 157.1750 Duplex Port operation84 161.8250 157.2250 Duplex Marine operator85 161.8750 157.2750 Duplex Marine operator86 161.9250 157.3250 Duplex Marine operator87* 157.3750 157.3750 Simplex Marine operator88* 157.4250 157.4250 Simplex Marine operatorWeather channel frequencies and namesChannel RX Channel RXWX01  162.5500  WX06  162.5000 WX02  162.4000  WX07  162.5250 WX03  162.4750  WX08  161.6500 WX04  162.4250  WX09  161.7750 WX05  162.4500
E-38 Uniden MHS235 Radio Owner’s ManualWarning! This transmitter will operate on channels/frequencies that have restricted use in the Unit-ed 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 with-out proper authorization is strictly forbidden. See  page E-33 for tables of the available channels and their uses. If you are still not certain which channels to use, see the FCC maritime radio page at the FCC website  (http://wireless.fcc.gov/marine/) or contact the FCC Call Center at 1-888-CALL-FCC. For individu-als requiring a license, such as commercial users, you should obtain a license application from your nearest FCC eld ofce (for US users) or Industry Canada (for Canadian users). You should familiarize yourself with the rules on marine radios and be aware of which rules apply to your boat. Complete guidelines for all ship and marine radio types can be found at the US Coast Guard website under the topic Radio Info for Boaters (the direct link is http://www.navcen.uscg.gov/?pageName=mtBoater. Here are a few guidelines that affect nearly all boaters.•  If you have a VHF radio on your boat, you must maintain a watch on channel 16 (156.800 MHz) whenever the radio is not being used to communicate. Starting in 2004, if a radio is carried, it must be on and set to channel 16. Whenever your boat is underway.•  If you hear a distress call, wait a few minutes to let a shore station or Coast Guard vessel re-spond. If no other station 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 nes.)Certication: FCC Part 80 or RSS-182Output Power: 6WEmission: 16K0F3ETransmitter Frequency Range: 156.025-157.425 MHzThis device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference.Unauthorized changes or modications to this equipment may void compliance with the FCC Rules. Any change or modication must be approved in writing by Uniden. Changes or modications not approved by Uniden could void the user’s authority to operate the equipment.In August 1996 the Federal Communications Commission (FCC) of the United States with its action in Report and Order FCC 96-326 adopted an updated safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated transmitters. Those guidelines are con-sistent with the safety standard previously set by both U.S. and international standards bodies. The design of the radio complies with the FCC guidelines and these international standards.Never allow children to operate the radio without adult supervision and the knowledge of the follow-WARNING! Read this information before using the radio.
E-39Uniden MHS235 Radio Owner’s Manualing guidelines.WARNING! It is up to the user to properly operate this radio transmitter to insure safe operation. Please adhere to the following:Use only the supplied or an approved antenna. Unauthorized antennas, modications, or attach-ments 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.To maintain compliance with FCC RF exposure requirements, the radio must be used with a maxi-mum duty cycle not exceeding 50% in a typical push-to-talk radio use time. DO NOT transmit for more than 50% of total radio use time.This device was tested for typical body-worn operations using the supplied belt-clip. To maintain compliance with FCC RF exposure requirements, body-worn operations are restricted to the sup-plied belt-clip. For hand-held operation, the radio should be held 1 inch from the user’s face. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure requirements and should be avoided. For more information about RF exposure, please visit the FCC website at www.fcc.gov.This equipment contains a rechargeable Lithium Ion battery. The rechargeable Lithium Ion battery contained in this equipment may explode if disposed of in a re.Do not short-circuit the battery.Do not charge the rechargeable battery used in this equipment in any charger other than the one specied in the owner’s manual. Using another charger may damage the battery or cause the bat-tery to explode.NOTE: Li-Ion batteries must be recycled or disposed of properly.Avoid exposing the battery (whether attached to the radio or not) to direct sunlight, heated cars, or temperatures 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 at-tention.As part of our commitment to protect the environment and conserve natural  resources, Uniden voluntarily participates in an RBRC®  industry program to  collect and recycle used Li-Ion batteries within  the US.Please call 1-800-8-BATTERY for information on Li-Ion battery recycling in your area.(RBRC® is a registered trademark of the Rechargeable Battery Recycling Corporation.)WARRANTOR: UNIDEN AMERICA CORP. (“Uniden”) ELEMENTS OF WARRANTY: Uniden warrants, for three years, to the original retail owner, this Un-iden Product to be free from defects in materials and craftsmanship with only the limitations or ex-
E-40 Uniden MHS235 Radio Owner’s Manualclusions set out below. WARRANTY DURATION: This warranty to the original user shall terminate and be of no further ef-fect 36 months after the date of original retail sale. The warranty is invalid if the Product is (A) dam-aged or not maintained as reasonable or necessary, (B) modied, altered, or used as part of any conversion kits, subassemblies, or any congurations not sold by Uniden, (C) improperly installed, (D) serviced or repaired by someone other than an authorized Uniden service center for a defect or malfunction covered by this warranty, (E) used in any conjunction with equipment or parts or as part of any system not manufactured by Uniden, or (F) installed or programmed by anyone other than as detailed by the Operating Guide for this product. STATEMENT OF REMEDY: In the event that the product does not conform to this warranty at any time while this war-ranty is in effect, warrantor will repair the defect and return it to you without charge for parts, service, or any other cost (except shipping and handling) incurred by warrantor or its representatives in connection with the performance of this warranty. THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO THE PRODUCT AND IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES OF ANY NATURE WHATSO-EVER, 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 REIM-BURSEMENT 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. LEGAL REMEDIES: This warranty gives you specic legal rights, and you may also have other rights which vary from state to state. This warranty is void outside the United States of America. PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the instruc-tions in this Operating Guide you are certain that the Product is defective, pack the Product carefully (preferably in its original packaging). Include evidence of original purchase and a note describing the defect that has caused you to return it. The Product should be shipped freight prepaid, by trace-able means, or delivered, to warrantor at:Uniden America Corporation Parts and Service Division 4700 Amon Carter Boulevard Fort Worth, TX, 76155(800) 554-3988
E-41Uniden MHS235 Radio Owner’s Manual
U01UT645AZZ(0)QUESTIONS?Contactez-nous au www.uniden.com ou appelez 1-800-297-1023.Imprimé au VietnamQUESTIONS?Visit our website at www.uniden.com or call 1-800-297-1023.Printed in Vietnam

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