Uniden MHS245 Owner's Manual
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Uniden MHS245 Owner's Manual

Handheld vhf marine transceiver
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MHS245
Handheld VHF Marine Transceiver
For more exciting new products please visit our website:
Australia: www.uniden.com.au

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  • Page 1 MHS245 Handheld VHF Marine Transceiver For more exciting new products please visit our website: Australia: www.uniden.com.au...

  • Page 2: Making A Distress Call

    12. End message by saying “THIS IS {name or call sign of your boat}, OVER.” 13. Release the push to talk button and listen. If you do not get an answer after 30 seconds, repeat your call, beginning at step 3, above. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 3: Warning

    NOTE literature accompanying the appliance. Floating/Waterproof: IPX8/JIS8 Uniden’s MHS245 radio is designed to meet the water proofing standard of IPX8/JIS8 and will float in water. This Means: Protected against the effects of continuous immersion in water.The MHS245 can withstand immersion in water up to 1.5m depth for 1hr.

  • Page 4: Table Of Contents

    Warning ..................3 Introduction ................7 Features ....................7 Getting Started ................9 What’s Included? ..................9 Controls and Indicators ............10 MHS245 Radio ..................10 Charger ....................13 Reading the Display ................13 Display ....................16 Menus ....................16 Normal Menu ..................16 Radio Setup Menu ................
  • Page 5 Making DSC Calls ................36 Making an Automatic Distress Call ............38 Receiving a DSC Call ................39 Receive Log ..................39 TEST Calls ................... 41 Position Request and Reply ..............42 Additional Features ............... 44 GPS Features ..................44 UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 6 Channels and Frequencies (MHz) ......... 53 US Channel Frequencies and Names ..........53 Canadian Channel Frequencies and Names ........55 International Channel Frequencies and Names ........57 Regulations and Safety Warnings ........59 Warranty .................. 60 UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 7: Introduction

    It is compact, lightweight, rugged and fits easily in your hand. This handheld VHF marine radio will give you consistent, outstanding performance in virtually all conditions and situations. To ensure that you get the most from the MHS245’s features, please read this operating guide carefully before using the unit. Features Your radio provides the following key features: •...
  • Page 8 • Compass 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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 9: Getting Started

    External speaker/ microphone Mounting Hardware • If any item is missing or damaged, contact your place of purchase immediately. Never use damaged products! • Need help? Get answers at our website: www.uniden.com.au for Australian model UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 10: Controls And Indicators

    Controls and Indicators MHS245 Radio Antenna Power Channel Up F L OAT I N G F L OAT I N G BOOST INST/SQL 16/67/TRI SCAN/MEM/ GPS/SOS/RIGHT LEFT Channel Down MENU/CALL CLR/VOL DISP/ENT/ H/M/L G P S G P S Microphone...
  • Page 11 Move a cursor to left channel from memory. in Menu Mode. MENU/CALL Access MENU. Select the DSC Call menu. Channel Up ▲ Move up channel or Move up quickly the squelch/volume one channels/squelch/volume step at a time. steps. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 12 Select MENU items. INST/SQL Instant CH Call Enter/Exit squelch level setting condition. GPS/SOS ► Access GPS mode. Activate strobe SOS light. Move Cursor to right in menu mode. CLR/VOL Exit menu screen. Enter/exit volume setting. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 13: Charger

    Reading the Display The LCD display shows different information depending on what you are doing. This sample screen shows some of this information. The following table shows all the possible icons and what they mean. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 14 Temperature display is active (Fahrenheit or ˚F/ ˚C Centigrade). Valid GPS data received from the GPS receiver. No valid GPS data received from the GPS receiver. The battery is fully charged, mostly charged, halfcharged, mostly empty, or completely empty. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 15 This icon appears when Auto Channel Switch is ‘Off’. Compass 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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 16: Display

    Dual/Tri Watch Sets the radio to turn on as either Dual Watch or Tri Watch when 16/67/TRI is pressed. USA/CAN/INT Selects which channels and frequencies your radio will communicate with (USA, Canadian, or International) UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 17: Radio Setup Menu

    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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 18: Dsc Setup Menu

    Places the radio in an unattended mode. Receive Log Displays a list of all received calls to the radio. The MHS245 stores log data for 10 distress calls and 50 other calls. DSC Setup Allows the user to set up Digital Selective Calling (DSC) service.

  • Page 19: Gps Setup Menu

    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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 20: Operation Modes

    16/67-Tri for 2 67 for activity seconds. every few seconds. 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. NOTE UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 21: Normal Mode

    • You cannot transmit while in Scan mode. • To save a channel into memory, select the channel, then press and hold the SCAN/MEM button. The MEM icon displays whenever you tune to that channel. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 22: Scan Mode With Triple Or Dual Watch

    2.Then press INST/SQL within 2 seconds to save the selected channel as Instant Channel. Instant Icon is indicated. To use the Instant Feature Press INST/SQL to toggle between the Instant Channel and the current channel. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 23: Setting Up The Hardware

    Li-Ion Polymer battery so you can still use your radio while your Li-Ion Polymer battery is recharging. CAUTION: If you are using your radio in a cold-weather environment, Uniden recommends using nonrechargeable Lithium batteries. When using alkaline batteries, transmit power is limited to a maximum of 2.5W.

  • Page 24: Mounting The Charger

    1. Use the two holes at the base of the charger as a template to mark the drill holes. 2. Using a 3mm (1/8-inch) drill bit, drill two holes 13mm (1/2 inch) deep. 3. Use the provided screws to attach the charger to the surface. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 25: Charging The Battery

    To remove the belt clip: 1. Rotate the clip so that the fi nger indentation is towards the bottom of the radio. 2. Slide the clip up until it comes free of the anchor post. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 26: Using Your Radio

    Acquiring GPS Location The MHS245 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.

  • Page 27: Setting The Squelch Level

    Using Your Radio Setting the Squelch level The MHS245 recognizes signals as transmissions if they exceed a signal strength threshold. Strong signals Weak signals Noise Medium High Squelch Squelch Squelch 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.

  • Page 28: Setting Key Lock

    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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 29: Making A Transmission

    ENT H/M/L to change to ..(W) Don’t forget to change the transmission setting back to 1W when you move close to other stations. NOTE Some channels limit the transmission power to 1W. When you tune to a UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 30: Changing The Channel

    SOS for 2 seconds. in Morse code. Press and hold GPS/ SOS LED remains on SOS for 2 seconds. continuously. (Flashlight mode) Continuous Press and hold GPS/ SOS LED turns off. SOS for 2 seconds. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 31: Using Dsc Features

    Broadcast to all vessels within range (used for Safety or Urgency messages). Position POS Request Request the current location of Request another vessel. Position Send Position Send Transmit your current location to another vessel. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 32: Mmsi Numbers

    • To Obtain an MMSI Code in NZ To obtain an MMSI for a VHF Recreational Radio contact the Ministry of Economic Development - Radio Spectrum Management at; Email: info@ rsm.govt.nz or free phone 0508 776 4630. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 33 4. Before saving the number, the radio displays the message Confirm 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/VOL). UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 34 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 fi eld. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 35: Using The Directory

    7. Press DISP/ENT/H/M/L to accept the edits or CLR/VOL to cancel. The radio returns to the DSC Directory Edit screen. 8. To delete the directory entry, select Delete. When you are satisfi ed with the directory list, press CLR/VOL to close the menu screen. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 36: Making Dsc Calls

    You use all ships calling to alert all the other boats in the area of the possible danger. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 37 H/M/L) to continue with the call or select Exit (press CLR/VOL) to cancel the call. 5. The radio switches to channel 70 to transmit the call request then automatically switches to the designated response channel. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 38: Making An Automatic Distress Call

    While the radio is waiting for a response, it gives you the option of canceling the call. To cancel the distress call, press CLR/VOL. And press DISP/ENT/ H/M/L to send a Distress Cancellation call. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 39: Receiving A Dsc Call

    5. Select the call you want to see the details of. Use Channel Up or 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: UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 40 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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 41: Test Calls

    Press and hold Call Menu/ DSC Setup Auto Test Reply Manual Back Exit Select [MENU] [CLR] [ENT] 1. Press and hold MENU/CALL to display the Call menu. 2. Select DSC Setup and then Test Reply. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 42: Position Request And Reply

    Manual. POS Request Any time you need to know where another boat currently is—to find your boating partners, to respond to a request for assistance, etc.—you can send a position request to their radio: UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 43: Position Reply

    If Position Reply is set to Manual: Position Request Position Request Harris Harris 06/20 11:00 Reply Routine Exit Send Exit [CLR] [ENT] [CLR] No action is necessary. Select Send to send a reply or Exit to reject the request. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 44: Position Send

    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. UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 45 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 39). UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 46: Additional Features

    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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 47: Nmea Features

    (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 MHS245 supports the following sentences: DATA...
  • Page 48 Save; to cancel the change, 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 satisfi ed with the channel list, select Exit. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 49: Maintenance And Troubleshooting

    Adjust the squelch level; it is probably speaker all the time. too low. I can transmit, but no one Check your UIC channel settings: does can hear me. the area you are in use different channel assignments? UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 50 Watch mode or in Scan mode. Try turning off scanning, Triple Watch, or Dual Watch (see page 20). Where can I find my The serial number is on a plate inside the radio’s serial number? battery compartment. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 51: Specifications

    1300 mA (5W) nominal Receiver Type Double Conversion Super Heterodyne Phase Locked Loop system for Local Oscillator Frequency Range 156.050~162.000 MHz Sensitivity 0.25 μV for 12dB SINAD (nominal) Squelch Sensitivity Threshold 0.18 μV (nominal) UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 52 +6.0 dB @ 500 Hz; -6 dB @ 2000Hz Response (nominal) Adjacent Channel 72dB @ ±25 kHz (nominal) Selectivity Audio Output Power 600mW @10% THD (nominal) Current Drain Squelched: 65 mA; Max. Audio: 230 mA (nominal) Inter Modulation 72dB (nominal) UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 53: Channels And Frequencies (Mhz)

    26 161.900 157.300 Duplex Marine operator 27 161.950 157.350 Duplex Marine operator 28 162.000 157.400 Duplex Marine operator 63A 156.175 156.175 Simplex Vessel traffic system 65A 156.275 156.275 Simplex Port operation 66A 156.325 156.325 Simplex Port operation UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 54 83A 157.175 157.175 Simplex Government 84 161.825 157.225 Duplex Marine Operator 85 161.875 157.275 Duplex Marine Operator 86 161.925 157.325 Duplex Marine Operator 87 157.375 157.375 Simplex Marine Operator 88 157.425 157.425 Simplex Commercial (Ship-Ship) UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 55: Canadian Channel Frequencies And Names

    Marine Operator 161.850 157.250 Duplex Marine Operator 161.900 157.300 Duplex Marine Operator 161.950 157.350 Duplex Marine Operator 162.000 157.400 Duplex Marine Operator 160.625 156.025 Duplex Marine Operator 61A 156.075 156.075 Simplex Canadian Coast Guard UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 56 Canadian Coast Guard 83A 157.175 157.175 Simplex Canadian Coast Guard 161.825 157.225 Duplex Marine Operator 161.875 157.275 Duplex Marine Operator 161.925 157.325 Duplex Marine Operator 157.375 157.375 Simplex Port Operation 157.425 157.425 Simplex Port Operation UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 57: International Channel Frequencies And Names

    28 162.000 157.400 Duplex Marine operator 60 160.625 156.025 Duplex Marine operator 61 160.675 156.075 Duplex Marine operator 62 160.725 156.125 Duplex Marine operator 63 160.775 156.175 Duplex Marine operator 64 160.825 156.225 Duplex Marine operator UNIDEN MHS245 Handheld VHF Marine Transceiver...
  • Page 58 83 161.775 157.175 Duplex Port operation 84 161.825 157.225 Duplex Marine operator 85 161.875 157.275 Duplex Marine operator 86 161.925 157.325 Duplex Marine operator 87 157.375 157.375 Simplex Marine operator 88 157.425 157.425 Simplex Marine operator UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 59: Regulations And Safety Warnings

    +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. UNIDEN MHS245 Handheld VHF Marine Transceiver...

  • Page 60: Warranty

    IMPORTANT: Satisfactory evidence of the original purchase is required for warranty service Please refer to our Uniden website for any details or warranty durations offered in addition to those contained below. Warrantor: The warrantor is Uniden Australia Pty Limited ABN 58 001 865 498 (“Uniden Aust”).
  • Page 61 Product, together with satisfactory evidence of your original purchase (such as a legible copy of the sales docket) to Uniden. Please refer to the Uniden website for address details. You should contact Uniden regarding any compensation that may be payable for your expenses incurred in making a warranty claim.
  • Page 64 © 2015 Uniden Australia Pty Limited. Printed in Vietnam. U01UT645CZZ(0)

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