Uniden owner manual Using the External Speaker/Mic Jack, Resetting the MHS450

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Using the External Speaker/Mic Jack

You can connect an optional external speaker-mic to this watertight 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 assures prevention of water entering the jack. Two available units are HHSPM Speaker Mic and VOX100 Headset Mic. For details, consult your Uniden dealer or call 1-800-BOATING.

Resetting the MHS450

•It is possible to completely reset the radio and restore all the factory default settings. Should you choose to do this, you must be aware that once you clear memory, there is no undo.

•However, if you desire to clear all your channels stored in memory, reset all the renamed channels and restore the scan settings to the factory default (as if you first opened the new box), carefully follow the steps below.

1.With power off, press and hold

down ▲ and 1/2.5/5W at the same time.

.While holding both keys down, turn on power.

3.Release both keys.

4.Press ENTER. Press and hold 16/9/TRI for 2 seconds. MEMORY CLEAR appears.

5.Turn power off then on, to complete the operation.

Uniden MHS450 Radio Owner’s Manual

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Contents

MHS450 Table of Contents Manually Selecting Coast Guard/Distress Using Scan with Triple Watch Follow these steps to get going Quick Start Guide for the MHS450Storing a Channel in Memory One Normal ScanningTripleWatch Scanning DualWatch Scanning= Channel Check FCC/Industry Canada Information Maritime Radio Services OperationFCC RF Exposure Information Lithium Ion Battery Pack Warning What’s Included Belt Clip Alkaline Battery Case HardwareUniden MHS450 Introduction FeaturesPage MHS450 Controls Page Radio Charger Cradle LCD Display Owner Manual Conventions Indicator SoundsBatteries Installing the Lithium Ion Battery PackPage Power AutoSave and Battery Life Indication To Mount the Cradle on a Counter Top Mounting the Charging CradleAttaching the Belt Clip Selecting a Channel Getting StartedTransmitting Transmitting Power LevelUsing the Radio Menu Options Lamp Backlight Adjust USA/CAN/INT U.I.C. SettingsSetting Dual or TriWatch Adjusting Display ContrastSetting the Key Lock Setting the Key BeepManually Selecting Coast Guard/Distress/ Hailing Channels Weather Band at the upper left and the channel number. Using the Weather ChannelsAdding Fips Codes Channel Name Changing Channel NamesUsing the TripleWatch or DualWatch Mode Restoring Default NamesTriple Watch and Dual Watch Only Using Scan with Triple Watch Dual Watch, or Weather AlertBoth Watches and Weather Channel Resetting the MHS450 Using the External Speaker/Mic JackSymptom Cause Remedy TroubleshootingSymptom Cause Remedy PLL SpecificationsCare and Maintenance Ch No RX Freq TX Freq Status Full Name Char Name USA Channel FrequenciesDigital Selective DSC Receive Canadian Channel Frequencies Inhibit International Channel Frequencies Status Full Name Char Name Noaa Weather Same Event Codes Noaa Weather Channels and FrequenciesPage Page Page TXF Transmitter Carrier Warrantor Uniden America Corporation Uniden Three Year Limited WarrantyVisit To Register Your Product