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Uniden MH120 Owner's Manual

Two-way vhf marine radio
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  Summary of Contents for Uniden MH120

  • Page 2 www.uniden.com...
  • Page 3: Table Of Contents

    Controls and Indicators... 2 Warning! ... 4 Introduction ... 5 Features ... 5 Technical Support and Service ... 6 Maritime Radio Services Operation ... 6 Included in Your Package ... 7 Getting Started ... 8 Attaching the Antenna ... 8 Installing the Alkaline Battery Case ...
  • Page 4: Controls And Indicators

    Controls and Indicators Antenna Belt Clip Battery Battery Release Clip PTT (Push to Talk) Key USA/International/Canadian Button ( UIC ) WX Mode/Weather Alert Button ( WX/ALERT ) TX Power/Lock Button ( 1/5W/LOCK ) Microphone Speaker MIC (Optional) Jack Volume/Power Knob ( VOL ) Squelch Knob ( SQ ) LCD Display Memory Button ( MEM )
  • Page 5: Lcd Display

    LCD Display Transmit Indicator TX Power Indicator USA/International/Canadian ( US/INT/CAN ) Indicator Channel Number Display Memory Indicator Scan Indicator G Battery Indicator Triple Watch Indicator Weather Mode Indicator Weather Alert Indicator Key Lock Indicator...
  • Page 6: Warning

    • The MH 120 is waterproof only when both the antenna and the battery are properly attached. • Do not operate the transmitter of any radio equipment unless all the Radio Frequency (RF) connectors are secure and any open connectors are properly terminated. •...
  • Page 7: Introduction

    The MH 120 is a waterproof, portable two-way VHF transceiver. 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 MH 120’s features, please read this operating guide carefully before using the unit.
  • Page 8: Technical Support And Service

    Be sure that a qualified technician services your radio equipment. Caution: Changes or modifications to this product not expressly approved by Uniden, or operation of this product in any way other than as detailed by this Operating Guide, can void your authority to operate this product.
  • Page 9: Included In Your Package

    MH 120 Antenna (HH9408) Beltclip Wrist Strap (RETC484647Z) Reference Guide/ Alkaline Battery Case Printed Material (attached to the MH 120) If any of these items are missing from the box, contact your Uniden Dealer or the Uniden Parts Department at (800)-554-3988.
  • Page 10: Getting Started

    Attaching the Antenna Apply the antenna to the radio as shown. Be sure the antenna is firmly seated. Installing the Alkaline Battery Case Snap the battery release clip out and remove the alkaline battery case. Remove the battery case cover by pulling the 2 halves apart applying your fingers to the projections.
  • Page 11: Attaching The Beltclip

    Attaching the Beltclip Hold the beltclip in the direction as illustrated. Apply it to the hanger piece on the back of the radio. Then slide it up. When you hear a click, the beltclip is firmly attached. To take the beltclip off the radio, turn it upside down and slide it up.
  • Page 12: Operation

    • See “Controls and Indicators” (page 2) for button, knob, and key positions. • When you turn On your MH 120 just after purchasing, it is automatically tuned to channel 16, the United States Coast Guard frequency for distress, safety, and calling. •...
  • Page 13: Selecting A Channel

    Selecting a Channel Turn On your MH 120. To select a higher channel, press the L button. To select a lower channel, press the M button. • To change the channel continuously, press and hold the L or M button for more than 1 second.
  • Page 14: Triple Watch

    Triple Watch Triple Watch mode monitors channels 16 and 9 for a signal while you listen to the currently selected channel. The marine radio checks channel 16 and 9 for activity every 2 seconds. To select Triple Watch mode, press and hold the 16/9/TRI button for 2 seconds.
  • Page 15: Monitoring Weather Channels

    Monitoring Weather Channels The MH 120 has 10 preprogrammed emergency/weather channel frequencies, represented by 0 through 9. To listen to the emergency/weather channels in your area, press the WX/ALERT button. WX appears on the display. To move up, press the L button. To move down, press the M button.
  • Page 16: Emergency/Weather Alert

    Emergency/Weather Alert Emergency/Weather Alert allows your MH 120 to function as a severe weather warning radio and will also alert you to any local or national emergencies. If the NOAA issues warning while this feature is turned On, the radio sounds an alert tone. You will then hear the emergency/weather broadcast.
  • Page 17: Usa, International And Canadian Channels

    USA, International and Canadian Channels The MH 120 is initially set for USA marine channels when you turn On your radio. To listen to international marine channels, press the UIC button once. INT appears on the display. To listen to Canadian marine channels, press the UIC button again.
  • Page 18: Deleting A Channel From Memory

    Deleting a Channel from Memory Select the channel to delete from memory by pressing the L or M button. Press the MEM button. MEM disappears from the display. Scanning To begin scanning the programmed channels, press the SCAN button. SCAN and TRIPLE appear on the display.
  • Page 19: Transmitting

    Transmitting Transmission power can be set to either 5W or 1W. Press the 1/5W/LOCK button to make the change, then the 5W or the 1W indicator on the display changes accordingly. To transmit, press and hold the PTT (push-to-talk) key. TX appears on the display.
  • Page 20: Battery Indicator

    Battery Indicator When the unit is On, battery power is always indicated on the display. When the battery is fully charged, the battery indicator appears as follows: When the battery is nearly discharged, the battery indicator appears as follows: • When the battery indicator drops to the blinking 1-mark level on the display, the radio will receive but will not transmit.
  • Page 21: Marine Channels - Usa

    Marine Channels - USA Channel Frequency (MHz) Desig Transmit Receive — 163.275 — 162.550 — 162.400 — 162.475 — 162.425 — 162.450 — 162.500 — 162.525 — 161.650 — 161.775 156.050 156.050 Com’l, Port Ops, VTS 156.150 156.150 Com’l, Port Ops, VTS 156.250 156.250 156.300 156.300 156.350 156.350...
  • Page 22 Channel Frequency (MHz) Desig Transmit Receive 157.200 161.800 157.250 161.850 157.300 161.900 157.350 161.950 157.400 162.000 156.075 156.075 156.175 156.175 156.225 156.225 156.275 156.275 156.325 156.325 156.375 156.375 156.425 156.425 156.475 156.475 RX Only 156.525 156.575 156.575 156.625 156.625 156.675 156.675 156.725 156.725 156.875 156.875 156.925 156.925...
  • Page 23: Marine Channels - International

    Marine Channels - International Channel Frequency (MHz) Desig Transmit Receive — 163.275 — 162.550 — 162.400 — 162.475 — 162.425 — 162.450 — 162.500 — 162.525 — 161.650 — 161.775 156.050 160.650 156.100 160.700 156.150 160.750 156.200 160.800 156.250 160.850 156.300 156.300 156.350 160.950 156.400 156.400...
  • Page 24 Channel Frequency (MHz) Desig Transmit Receive 157.200 161.800 157.250 161.850 157.300 161.900 157.350 161.950 157.400 162.000 156.025 160.625 156.075 160.675 156.125 160.725 156.175 160.775 156.225 160.825 156.275 160.875 156.325 160.925 156.375 156.375 156.425 156.425 156.475 156.475 RX Only 156.525 156.575 156.575 156.625 156.625 156.675 156.675 156.725 156.725...
  • Page 25: Marine Channels - Canada

    Marine Channels - Canada Channel Frequency (MHz) Desig Transmit Receive — 163.275 — 162.550 — 162.400 — 162.475 — 162.425 — 162.450 — 162.500 — 162.525 — 161.650 — 161.775 156.050 160.650 156.100 160.700 156.150 160.750 156.200 156.200 156.250 156.250 156.300 156.300 156.350 156.350 156.400 156.400...
  • Page 26 Channel Frequency (MHz) Desig Transmit Receive 157.200 161.800 157.250 161.850 157.300 161.900 157.350 161.950 157.400 162.000 156.025 160.625 156.075 156.075 156.125 156.125 156.225 156.225 156.275 156.275 156.325 156.325 156.375 156.375 156.425 156.425 156.475 156.475 RX Only 156.525 156.575 156.575 156.625 156.625 156.675 156.675 156.725 156.725 156.875 156.875...
  • Page 27: Optional Parts And Replacement Accessories

    Mounting Screws Antenna Wrist Strap (BADY0510001) (HH9408) (RETC484647Z) DC Adapter Ni-MH Battery Cradle Reference Guide (BP 250) Beltclip Alkaline Battery Case Uniden Parts Department (800)-554-3988 Hours: M-F 8:00AM to 5:00PM CST We can also be reached on the web at www.uniden.com...
  • Page 28: Specifications

    General Channels Transmit and Receive Weather Freq. Control Freq. Tol. Transmit Receive Oper. Temp. Antenna Microphone Display Speaker Power Source Size (without antenna) Weight (w/ antenna) Transmitter (w/ Ni-MH battery) Frequency Range Frequency Stability Power Output Spurious Emissions Current Drain Receiver (w/ Ni-MH battery) Receiver Type Frequency Range...
  • Page 29: Troubleshooting

    Not enough range Cause: Line of sight blocked Increase antenna height. Will not transmit on 5 watt range but will transmit on the 1 watt range. Cause: Low voltage Install new batteries. Troubleshooting...
  • Page 30: Fcc Rf Exposure Information

    For more information about RF exposure, please visit the FCC website at www.fcc.gov. • When using an external speaker microphone, USE ONLY THE UNIDEN MODEL HHVTA07 (black) or HHVTAW07 (white). Use of any other accessory for this purpose may invalidate your authority to operate this device.
  • Page 31: Three-Year Limited Warranty

    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 Operation Guide for this product.