Page 2 - Uniden MHS450 Radio Owner’s Manual; Table of Contents
Uniden MHS450 Radio Owner’s Manual Table of Contents A Quick Start Guide for the MHS450 ..................................5Storing a Channel in Memory .............................................6Normal Scanning ................................................................7DualWatch Scanning ......
Page 5 - A Quick Start Guide for the MHS450; Follow these steps to get going!; VOLUME; DISTRESS
5 Uniden MHS450 Radio Owner’s Manual A Quick Start Guide for the MHS450 Follow these steps to get going! Rotate VOLUME until the display lights. The Power On tone sounds. The default display shows channel 16 in the US marine band, a 5 watt level and the purpose of the channel such as DISTRESS at the...
Page 6 - Storing a Channel in Memory; Use ▲ or ▼ until you reach a channel you want to
6 Uniden MHS450 Radio Owner’s Manual To listen to your local NOAA weather channel, press WX/ALERT. One channel of the 10 available will be best. Press WX/ALERT to return to marine channels. To transmit, repeated press 1/2.5/5W to select a power level. Then, press ▲ or ▼ to select a channel.Press PTT...
Page 7 - CHANNEL STORED; Normal Scanning; CHANNEL SCAN; C H A N N E L S C A N
7 Uniden MHS450 Radio Owner’s Manual CHANNEL STORED appears at the bottom of the display.If you take no further action, the screen returns to the standard marine screen in 3-seconds. Now that you have several channels stored in memory, you can choose to scan them in three separate methods, Normal Sc...
Page 8 - DualWatch Scanning; channel for areas of high marine traffic. Channel 16 is the; TripleWatch Scanning; RADIO MENU
8 Uniden MHS450 Radio Owner’s Manual DualWatch Scanning Marine channel 9 is reserved as a backup hailing, calling channel for areas of high marine traffic. Channel 16 is the reserved Coast Guard Distress, hailing channel.Press and hold 16/9/TRI . If you have set DualWatch as your default mode using ...
Page 9 - Dual/TripleWatch Scanning
9 Uniden MHS450 Radio Owner’s Manual Weather Channel, Stored Channels, and Dual/TripleWatch Scanning You can store your NOAA weather channel in memory in the same manner as any other marine channel using the steps on page 5.For this example, you have stored 8 marine channels. You have pressed WX/ALE...
Page 10 - Maritime Radio Services Operation; nearest FCC field office (for US users) or Industry Canada; FCC/Industry Canada Information; FCC Rules
10 Uniden MHS450 Radio Owner’s Manual Maritime Radio Services Operation Warning! This transmitter will operate on channels/ frequencies that have restricted use in the United States. The channel assignments include frequencies assigned for exclusive use of the U.S. Coast Guard, use in Canada, and us...
Page 11 - FCC RF Exposure Information; Read this information before using the radio; WARNING; RF
11 Uniden MHS450 Radio Owner’s Manual FCC RF Exposure Information WARNING! Read this information before using the radio In August 1996 the Federal Communications Commission (FCC) of the United States with its action in Report and Order FCC 96- 36 adopted an updated safety standard for human exposure...
Page 12 - Lithium Ion Battery Pack Warning; equipment may explode if disposed of in a fire.; Lithium Ion batteries must be recycled or disposed of
1 Uniden MHS450 Radio Owner’s Manual Lithium Ion Battery Pack Warning This equipment contains a rechargeable Lithium Ion battery.The rechargeable Lithium Ion battery contained in this equipment may explode if disposed of in a fire. Do not short-circuit the Battery Pack.Do not charge the rechargeable...
Page 13 - What’s Included
13 Uniden MHS450 Radio Owner’s Manual If any of these items are missing from the box, contact Uniden or call 1-800-554-3988. MHS450 Radio Wrist Strap Owners Manuals and Other Printed Materials DC Adapter Charging Cradle Alkaline Battery Case (batteries not included) Belt Clip Lithium Ion Battery Pac...
Page 14 - National Oceanic and Atmospheric Administration
14 Uniden MHS450 Radio Owner’s Manual Uniden MHS450 Introduction Your Uniden MHS450 represents the latest in marine radio technology in a conveniently sized and rugged package. It has features you’ll come to count on for day in and day out use. The product combines size, value, and performance that ...
Page 18 - Radio Charger Cradle
18 Uniden MHS450 Radio Owner’s Manual 15 . Light/Lock — Press to activate the Backlight. Press and hold to lock the Keypad. 16 . Battery Connection Area and Battery Recharging Contacts — Install the supplied Lithium Ion Rechargeable Battery being sure to position the pack as shown in the section Bat...
Page 19 - LCD Display; — displays one of five different indicators
19 Uniden MHS450 Radio Owner’s Manual LCD Display 1 Watt or 2.5 Watts or 5 Watts — indicates present transmit power. Not displayed when receiving weather frequencies. Not displayed for those channels on which transmitting is prohibited. The initial setting is 5W. USA or INT or CAN (UIC) — indicates ...
Page 20 - Owner Manual Conventions; UPPER; Indicator Sounds; — a rapidly rising tone sounds to confirm that
0 Uniden MHS450 Radio Owner’s Manual Owner Manual Conventions To indicate a key, button, knob or other physical control, we print the label in BOLD UPPER CASE. To indicate an LCD (display) label, option, or selection, we use UPPER or Lower Case italic labels such as MENU , 5 Seconds , etc. You will ...
Page 21 - Batteries; Installing the Lithium Ion Battery Pack
1 Uniden MHS450 Radio Owner’s Manual Batteries Your Uniden MHS450 comes equipped with a Lithium Ion battery which snaps into the back of the radio and secures with a latch. The battery has a minimal charge when shipped. Before use, place the radio in the Charging Cradle and charge the battery for fo...
Page 22 - Warning
Uniden MHS450 Radio Owner’s Manual To install the four AAA batteries in the alkaline battery pack, refer to the illustrations and the following steps. Hold the lower part of the pack and with the other hand, lift the cover to reveal the contacts in the chamber. Note the polarity markings.Position th...
Page 23 - Power AutoSave and Battery Life Indication; BATTERY LOW; PTT; Alkaline Batteries and Radio Performance
3 Uniden MHS450 Radio Owner’s Manual Power AutoSave and Battery Life Indication A special circuit conserves power when constant power is not required. The battery powers down during receiving unless squelch is operating. However, the save feature does not function during transmitting, weather alert ...
Page 24 - Mounting the Charging Cradle; use the radio for the first time. To facilitate convenient; To Mount the Cradle on a Counter Top; flange surrounding the cradle. Using the; Mounting on a Wall; confirm that the area on the wall has solid backing such
4 Uniden MHS450 Radio Owner’s Manual Mounting the Charging Cradle You must charge the Lithium Ion Battery Pack before you use the radio for the first time. 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 ...
Page 25 - Attaching the Belt Clip
5 Uniden MHS450 Radio Owner’s Manual Attaching the Belt Clip To conveniently carry the radio, attach the provided belt clip as follows. Align the clip mounting hole with the mounting post as shown. Place the clip on the post and slide it in the direction of the arrow until you hear a click.To remove...
Page 26 - Getting Started; reception for your particular area. Use ▲ or ▼ to; WX; Selecting a Channel; When you first apply power, the screen
6 Uniden MHS450 Radio Owner’s Manual Getting Started To start using your MHS450, follow the steps below. Rotate VOLUME until the display lights and the Power On tone sounds. The Uniden animated ‘splash’ screen displays followed by the model number. Set the volume to a comfortable listening level. Th...
Page 27 - Transmitting Power Level; Transmitting; Press ▲ or ▼ to select a channel. The selected; TRANSMITTING
7 Uniden MHS450 Radio Owner’s Manual Transmitting Power Level You can select the transmitting power for all channels except those designated as Receive Only or Low Power Channels (see the Status column of the Frequency Charts for more details).Repeatedly press 1/2.5/5W . Each time you press the butt...
Page 28 - Using the Radio Menu Options; RADIO
8 Uniden MHS450 Radio Owner’s Manual Note : You cannot transmit on the weather frequencies. They are designated ‘receive’ only. An error tones sounds when you press the PTT switch and a weather channel is selected. The displayed weather channel number flashes, and RELEASE PTT KEY is displayed to rem...
Page 30 - Adjusting Display Contrast; Press ▲ or ▼ from the RADIO; Press ▲ or ▼ to increase or decrease the level which; ENTER; Setting Dual or TriWatch; level of marine traffic. Depending on your location, you can; ENTER; Press either ▲ or ▼ to reach; ENTER
30 Uniden MHS450 Radio Owner’s Manual Adjusting Display Contrast You can adjust the contrast setting of the LCD for various viewing conditions. Press ▲ or ▼ from the RADIO MENU screen to highlight Contrast . Press ENTER . Press ▲ or ▼ to increase or decrease the level which is indicated by the numbe...
Page 31 - Setting the Key Beep; Your MHS450 confirms a key press by; Press ▲ or ▼ to select; Setting the Key Lock
31 Uniden MHS450 Radio Owner’s Manual Setting the Key Beep Your MHS450 confirms a key press by sounding a short single or double beep (default). You can disable this sound. From the RADIO MENU screen, press ▲ or ▼ to highlight the KEY BEEP option. Press ENTER to select it. Press ▲ or ▼ to select On ...
Page 32 - Hailing Channels; NON COMMERCIAL
3 Uniden MHS450 Radio Owner’s Manual Manually Selecting Coast Guard/Distress/ Hailing Channels In addition to using Triple or Dual Watch to monitor the Coast Guard/Distress/Hailing channels, you can manually select them at any time.To select your Coast Guard/Distress/Hailing channel, repeatedly pres...
Page 33 - Using the Weather Channels; bottom of the screen. You can find a complete listing
33 Uniden MHS450 Radio Owner’s Manual To remove a channel from memory, with the stored channel displayed, press and hold SCAN/MEM . To scan stored memory channels see page 37. Using the Weather Channels The radio receives ten National Oceanic and Atmospheric Administration weather channels. Although...
Page 34 - ALERT; Adding FIPS Codes; To effectively use the Specific Area; MENU; or ▼ to select the
34 Uniden MHS450 Radio Owner’s Manual Note: if the event code is longer than 16 characters, the display label scrolls across the display bottom then changes to the abbreviated format. Thus, HURRICANE WARNING (17 spaces) becomes HURRICANE WARN... and remains. To verify if the radio is in the ALERT mo...
Page 35 - Changing Channel Names
35 Uniden MHS450 Radio Owner’s Manual Once you locate the code for your county or area, use ▲ or ▼ until the correct number appears on the screen then press ENTER to select it. Enter all the codes you wish, then move to EXIT and ENTER to select it. The radio returns to the RADIO MENU screen. Press M...
Page 36 - Restoring Default Names; Using the TripleWatch or DualWatch Mode
36 Uniden MHS450 Radio Owner’s Manual Restoring Default Names If you want to restore all the factory default names, use ▲ or ▼ to highlight Default All located between channel 88 A and Exit . Use ▲ or ▼to highlight Yes then press ENTER to restore all the original names. A double beep sounds to confi...
Page 37 - or DualWatch continues). Then use ▲ or ▼ to manually; Using Scan with Triple Watch,; Triple Watch and Dual Watch Only
37 Uniden MHS450 Radio Owner’s Manual Note: If you enable TripleWatch or DualWatch from a Weather Channel, the same watch cycle occurs. When the radio checks the selected weather channel, the screen displays Weather Band in the upper left corner. When the radio checks Channel 9, Channel 16, or both,...
Page 38 - Both Watches and Weather Channel; it checks channel 9 and 16 every 2-seconds and finally, it
38 Uniden MHS450 Radio Owner’s Manual To disable Triple or Dual Watch and revert to scanning only stored channels, press and hold 16/9/TRI for seconds. Channel 16 and 9 are no longer checked. The radio continues to scan only stored memory channels. CHANNEL SCAN appears on the bottom and each channel...
Page 39 - Using the External Speaker/Mic Jack; HHSPM Speaker; scan settings to the factory default (as if you first opened; MEMORY CLEAR
39 Uniden MHS450 Radio Owner’s Manual 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 preventi...
Page 40 - Troubleshooting
40 Uniden MHS450 Radio Owner’s Manual Troubleshooting If you missing parts or accesoories, call Parts & Service at 1-800- 554-3988.In the event that the radio fails to perform, try the following remedies. If you have still problems, visit our customer support website at: www.uniden.com or call o...
Page 42 - Specifications
4 Uniden MHS450 Radio Owner’s Manual Specifications General Channels Transmit 54 US/International/Canada Receive 89 US/International/Canada Weather 10 Freq. Control PLL Freq. Tol. Transmit 1.5 PPM (at 25°C) Receive 1.5 PPM (at 25°C) Oper. Temp. -4°F (-20°C) to +122°F(+50°C) p i h W e l b i x e l F a...
Page 43 - Care and Maintenance
43 Uniden MHS450 Radio Owner’s Manual Care and Maintenance Your MHS450 is a precision of electronic equipment and you should treat it accordingly. Due to the rugged design, very little maintenance is required. However, a few precautions should be observed: If the antenna has been damaged, you should...
Page 44 - USA Channel Frequencies
44 Uniden MHS450 Radio Owner’s Manual USA Channel Frequencies Ch No. RX Freq TX Freq Status Full Name 16 Char Name 1 ”A” 156.0500 156.0500 Simplex VESSEL TRAFFIC SYSTEM/ COMMERCIAL VTS/ COMMERCIAL 3 ”A” 156.1500 156.1500 Simplex COAST GUARD,GOVT ONLY COAST GUARD ONLY 5 “A” 156.2500 156.2500 Simplex ...
Page 46 - Canadian Channel Frequencies
46 Uniden MHS450 Radio Owner’s Manual Ch No. RX Freq TX Freq Status Full Name 16 Char Name 1 160.6500 156.0500 Duplex MARINE OPERATOR MARINE OPERATOR 2 160.7000 156.1000 Duplex MARINE OPERATOR MARINE OPERATOR 3 160.7500 156.1500 Duplex MARINE OPERATOR MARINE OPERATOR 4 “A” 156.2000 156.2000 Simplex ...
Page 48 - International Channel Frequencies
48 Uniden MHS450 Radio Owner’s Manual International Channel Frequencies Ch No. RX Freq TX Freq Status Full Name 16 Char Name 1 160.6500 156.0500 Duplex MARINE OPERATOR MARINE OPERATOR 2 160.7000 156.1000 Duplex MARINE OPERATOR MARINE OPERATOR 3 160.7500 156.1500 Duplex MARINE OPERATOR MARINE OPERATO...
Page 50 - Channel; NOAA Weather
50 Uniden MHS450 Radio Owner’s Manual NOAA Weather Channels and Frequencies Channel RX Frequency WX01 16.5500 WX0 16.4000 WX03 16.4750 WX04 16.450 WX05 16.4500 WX06 16.5000 WX07 16.550 WX08 161.6500 WX09 161.7750 WX10 163.750 NOAA Weather SAME Event Codes Standard Code Received Event Code (Scrolling...
Page 55 - Three Year Limited Warranty
55 Uniden MHS450 Radio Owner’s Manual WARRANTOR: UNIDEN AMERICA CORPORATION (“Uniden”)ELEMENTS OF WARRANTY: Uniden warrants, for three years, to the original retail owner, this Uniden Product to be free from defects in materials and craftsmanship with only the limitations or exclusions set out below...
