Uniden MHS550 manual Transmitting, To transmit, follow the steps below

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Channels 75 and 76.

Transmitting

To transmit, follow the steps below.

1.Press ▲ or ▼ to select a channel. The selected channel number appears on the display along with the country label, and the selected power setting.

.Press the PTT switch. TRANSMITTING appears at the bottom of the screen and remains displayed as long as you hold down the PTT switch.

Notes:

•You cannot transmit on the weather frequencies. They are designated ‘receive’ only. An error tones sounds when you press PTT and a weather channel is selected. The displayed weather channel number flashes, and RELEASE PTT KEY is displayed to remind you that you cannot transmit on the selected channel.

•You cannot transmit on Channel 70, and 15 in the USA. Channel 70 is reserved for digital data only while channel

15 is reserved for receive only. If you attempt to transmit,

RELEASE PTT KEY appears in the LCD message line.

•Do not hold down PTT while turning on the radio. An error tone sounds and the same message appears.

•Pressing PTT halts Scanning. For Scanning and the settings for Dual and TripleWatch, see Page 51. If the channel has no carrier, the first press of PTT takes the radio out of scan mode. Press PTT to activate transmitting. Continuous transmitting is limited to 5 minutes by regulations. After this time, an error tone sounds and RELEASE PTT KEY displays. After you release PTT, pressing PTT again restarts the 5-minute time interval.

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 LCD Displays Family Radio Service FRS BandVHF 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 the Key Lock For All Bands Setting FM Muting FM Band OnlyOther 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