Uniden MHS127 Owner's Manual
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Uniden MHS127 Owner's Manual

Handheld vhf marine transceiver
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MHS127
Handheld VHF Marine Transceiver
For more exciting new products please visit our website:
Australia: www.uniden.com.au
New Zealand: www.uniden.co.nz

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Summary of Contents for Uniden MHS127

  • Page 1 MHS127 Handheld VHF Marine Transceiver For more exciting new products please visit our website: Australia: www.uniden.com.au New Zealand: www.uniden.co.nz...

  • Page 2: Making A Distress Call

    13. End message by saying “THIS IS {name or call sign of your boat}, OVER.” 14. 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 MHS127 Handheld VHF Marine Transceiver...

  • Page 3: Warning

    JIS8 and will float in water. This Means: Protected against the effects of continuous immersion in water. The MHS127 can withstand immersion in water up to 1.5m depth for 1hr. Note this is not suitable for scuba diving. The MHS127 will only meet this rating if fully assembled and all rubber seals are well maintained and correctly fitted.

  • Page 4: Table Of Contents

    Introduction ................6 Features ....................6 Getting Started ................7 What’s Included? ..................7 Controls and Indicators ............8 MHS127 Radio ..................8 Charger ....................10 Reading the Display ................10 How it Works? ................. 12 Normal Mode Operation ............13 Normal mode with Triple Watch or Dual Watch ........13...
  • Page 5 Channels and Frequencies (MHz) ......... 28 US Channel Frequencies and Names ..........28 Canadian Channel Frequencies and Names ........30 International Channel Frequencies and Names ........32 Regulations and Safety Warnings ........34 Warranty .................. 35 UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 6: Introduction

    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 MHS127’s features, please read this operating guide carefully before using the unit. Features Your radio provides the following key features: •...

  • Page 7: Getting Started

    If any items are 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 www.uniden.co.nz for New Zealand model. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 8: Controls And Indicators

    Controls and Indicators MHS127 Radio Antenna External Speaker and microphone jack Wrist strap anchor Power Push to talk Channel Boost VOL / 16/67-Tri TX PWR SQL/UIC WX/SOS Channel down DUAL/ LOCK INST SCAN/MEM Strobe SOS Light Microphone Speaker UNIDEN MHS127...
  • Page 9 Channel Up Move up channel or Move quickly up the squelch/volume one channels/ squelch/volume step at a time. steps. SCAN/MEM Select Scan function. Save a channel into memory or delete a channel from memory. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 10: Charger

    The radio is Current transmitting channel number Battery status icon Weather UIC channel Channel mode Key lock is on Watch This channel is mode The radio is in stored in memory. scan mode UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 11 The current channel is saved in memory. SCAN The radio is in Scan mode. The weather channels are displayed. The battery is fully charged, mostly charged, halfcharged, mostly empty, or completely empty. Current channel number. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 12: How It Works

    Press and hold 16/67/TRI Watch activity every 2 seconds. for 2 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 MHS127 Handheld VHF Marine Transceiver...

  • Page 13: Normal Mode Operation

    16 or 67 while you are actively transmitting; it waits until your transmission is finished and then checks the channels. Example: Monitoring Channel 25 16 67 16 67 16 67 Every 2 seconds, the radio checks channels 16 & 67. Triple Watch on UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 14: Scan Mode Operation

    • When the radio stays on a channel, press Channel Up to leave that channel and resume scanning. • To end the scan, press the SCAN/MEM button again; the radio remains on the last scanned channel. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 15: Scan Mode With Triple Watch Or Dual Watch

    Press and hold [INST] for 2 seconds to program the current channel as the Instant CH. Note: there is no INST icon. To use the Instant Feature: Press [INST] to toggle between the Instant Channel and the current channel. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 16: 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 17: 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 MHS127 Handheld VHF Marine Transceiver...

  • Page 18: 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 MHS127 Handheld VHF Marine Transceiver...

  • Page 19: Using Your Radio

    0 (for volume level 0 - 9) displays. Press CHANNEL UP or CHANNEL DOWN to increase or decrease the volume levels. Press VOL/TX PWR to save. Setting the Squelch level The MHS127 recognizes signals as transmissions if they exceed a signal strength threshold. Strong signals Weak signals...

  • Page 20: Making A Transmission

    To prevent stuck microphone problems or situations where Push to Talk is pushed accidentally, the radio limits your talk time to 5 minutes in a single transmission. • For the best sound quality, hold the microphone about two inches away from your mouth. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 21: Boosting The Transmission Power

    You must have at least 2 channels in memory in order to use Scan mode. Channel 70 cannot be stored into memory. NOTE Press and hold SCAN/MEM again to remove the channel from memory. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 22: Special Features

    You can lock and unlock the keypad by pressing and holding DUAL/LOCK. If Key Lock is on, only PTT, Boost, and power on/off will operate. Key Lock remains in memory when the radio is turned off. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 23: Using The External Speaker/Mic Jack

    Unscrew the cap, which is held by the rubber cap-keeper to prevent loss. Insert the special gasketed plug and screw down the shell, which prevents water from entering the jack. For details, consult your dealer or contact Uniden Customer Care directly (see front cover for contact information). Using the Battery Save feature The Battery Save feature automatically turns off receive power at regular intervals to save battery power.

  • Page 24: Maintenance And Troubleshooting

    Adjust the squelch level; it is probably too speaker all the time. 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 MHS127 Handheld VHF Marine Transceiver...
  • Page 25 Watch mode or in Scan mode. Try turning off scanning, Triple Watch, or Dual Watch (see page 12). Where can I find my radio’s The serial number is on a plate inside the serial number? battery compartment. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 26: Specifications

    Spurious Emissions 50 dBm Current Drain 1300 mA (5W) nominal Receiver Type Double Conversion Super Heterodyne Phase Locked Loop system for Local Oscillator Frequency Range 156~164 MHz Sensitivity 0.22 μV for 12dB SINAD (nominal) UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 27 +5.0 dB @ 500 Hz; -6 dB @ 2000Hz (nominal) Response Adjacent Channel 80 dB @ ±25 kHz (nominal) Selectivity Audio Output Power 1.0 W @10% THD (nominal) Current Drain Squelched: 38 mA; Max. Audio: 230 mA (nominal) UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 28: Channels And Frequencies (Mhz)

    66A 156.325 156.325 Simplex Port operation 156.375 156.375 Simplex, 1W Bridge To Bridge 156.425 156.425 Simplex Non Commercial 156.475 156.475 Simplex Non Commercial 156.525 Inhibit Receive only Digital Selective Calling 156.575 156.575 Simplex Non Commercial UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 29 82A 157.125 157.125 Simplex Coast Guard 83A 157.175 157.175 Simplex Government 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 Marine Operator 157.425 157.425 Simplex Commercial (Ship-Ship) UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 30: Canadian Channel Frequencies And Names

    156.025 Duplex Marine Operator 61A 156.075 156.075 Simplex Canadian Coast Guard 62A 156.125 156.125 Simplex Canadian Coast Guard 63A 156.175 156.175 Simplex Port Operation 160.825 156.225 Duplex Marine Operator 64A 156.225 156.225 Simplex Port Operation UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 31 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 MHS127 Handheld VHF Marine Transceiver...

  • Page 32: International Channel Frequencies And Names

    160.625 156.025 Duplex Marine operator 160.675 156.075 Duplex Marine operator 160.725 156.125 Duplex Marine operator 160.775 156.175 Duplex Marine operator 160.825 156.225 Duplex Marine operator 160.875 156.275 Duplex Marine operator 160.925 156.325 Duplex Marine operator UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 33 161.725 157.125 Duplex Port operation 161.775 157.175 Duplex Port operation 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 Marine operator 157.425 157.425 Simplex Marine operator UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 34: Regulations And Safety Warnings

    (+60°C). Exposing the chemical contained within the battery pack to temperatures above +140°F (+60°C) may cause the battery to rupture, fail, or reduce performance. In case of exposure to the cell contents, wash the affected area thoroughly, and seek medical attention. UNIDEN MHS127 Handheld VHF Marine Transceiver...

  • Page 35: Warranty

    Terms of Warranty: Uniden Aust/NZ warrants to the original retail purchaser only that the MHS127 (“the Product”), will be free from defects in materials and craftsmanship for the duration of the warranty period, subject to the limitations and exclusions set out below.
  • Page 36 Product, together with satisfactory evidence of your original purchase (such as a legible copy of the sales docket) to Uniden at the addresses shown below. You should contact Uniden regarding any compensation that may be payable for your expenses incurred in making a warranty claim.
  • Page 37 UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 38 UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 39 UNIDEN MHS127 Handheld VHF Marine Transceiver...
  • Page 40 © 2014 Uniden Australia Pty Limited. Uniden New Zealand Ltd. Printed in Vietnam. U01UT644CZA(0)

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