Uniden MHS550 manual Mounting the Charging Cradle, Alkaline Batteries and Radio Performance

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Note: During the time you press PTT to transmit, you may notice the power level indicator drop to a lower level and then return to a higher level once you stop transmitting. This is normal and merely indicates that additional power is required to transmit compared to that used during reception.

Alkaline Batteries and Radio Performance

If you use alkaline batteries for emergency purposes, note that the transmitting power output may suffer as the alkaline batteries become weak and near the end of their useful life. In such cases, you might not be able to transmit with a full

2.5watts of power. Replace the batteries with known fresh batteries to be sure, or switch to a fully charged Lithium Ion battery pack.

When the appears (Low Battery), or you hear the Low Battery alert tone sound, be sure to replace all alkaline batteries in use. Doing so removes any chance of degraded radio performance and operation that can occur toward the end of the batteries’ useful life.

Mounting the Charging Cradle

Your MHS550 Li-Ion battery may not be fully charged when you first turn on the radio. To facilitate convenient charging we suggest mounting the charger cradle to either a counter top or wall. Use the AC Adapter at home and the DC Adapter on your boat or car.

To Mount the Cradle on a Counter Top

Locate the three holes provided in the flange surrounding the cradle. Using the holes as a template, mark the surface. Center punch and drill three holes to accommodate the provided screws and washers.

Mounting on a Wall

Using the keyholes in the rear of the cradle as a template, confirm that the area on the wall has solid backing such as a wooden beam. Then drill holes and use the screws and

Uniden MHS550 Radio Owner’s Manual

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Contents Page FCC/Industry Canada Information Maritime Radio Services OperationTable of Contents USA/CAN/INT U.I.C Selecting and Using Follow these steps to get going Marine Band Quick Start Guide for the MHS550FRS Band AM Band Weather BandAircraft Band FM BandNormal Scanning IntroductionTripleWatch FCC RF Exposure Information Lithium Ion Battery Pack Warning What’s Included Introduction FeaturesPage 17 18 MHS550 ControlsPage Page Radio Charger Cradle Family Radio Service FRS Band LCD DisplaysVHF Marine Band Indicator Meanings Page Batteries Indicator SoundsUsing the Alkaline Battery Pack Installing the Lithium Ion Battery PackBattery Life and Indication Mounting on a Wall Mounting the Charging CradleAlkaline Batteries and Radio Performance To Mount the Cradle on a Counter TopAttaching the Belt Clip Operation Marine and Weather Bands Basic Operation, Controls Settup OptionsSelecting a Channel Setting the Transmitting Power LevelTo transmit, follow the steps below TransmittingOperation AM Band Operation Family Radio Service BandOperation Aircraft Band Operation FM BandMarine Band FRS Band Using the Radio Menu OptionsUSA/CAN/INT U.I.C. Marine Band Only Accessing the MenusLamp Backlight Adjust For All Bands Adjusting Display Contrast For All Bands Contrast AdjustAdding Fips Codes For Marine/Weather Band Only Setting the Key Beep For All BandsI t 03A CG Only Changing Channel Names For Marine Band OnlyCode Setting Ctcss Codes FRS Band OnlyPage Tuning Steps. Press Enter Setting Frequency Steps AM, FM OnlySetting FM Muting FM Band Only Setting the Key Lock For All BandsOther Options Manually Selecting Coast Guard/Distress/Hailing Channels Storing a Channel or Frequency in Memory For All Bands Alert Selecting and Using Weather Channel and Weather Alert WXSec Immediate Scanning The Basics and Beyond TripleWatch Scanning as above, but also monitors Channel Normal Scanning TripleWatch and DualWatch Scanning VHF FRS Both Watches and Weather Channel VHF-FRS Page Accessory Options Using the External Speaker/Mic Jack Examples of Mode ApplicationsTroubleshooting Care and MaintenanceSymptom Cause Remedy Reference Section SpecificationsReceiver Items Unit Nominal Limit Status Full Name Char Name USA Channel FrequenciesMarine Operator Canadian Channel Frequencies Inhiber International Channel Frequencies Port Operation DCS Codes Noaa Channels and FrequenciesCtcss Channels and Frequencies FRS Channels FrequenciesWarrantor Uniden America Corporation Uniden Three Year Limited Warranty