UM425 VHF DSC Marine Radio UM425 VHF OM.
Making a distress call NOTE: There is no official VHF DSC shore infrastructure in Australia. Vessels fitting VHF DSC equipment should realise that this equipment can only be used for vessel - to - vessel alerting in the Australian region. There is no official shore-based infrastructure but there are a number of volunteer marine rescue (VMR) stations that have installed VHF DSC and a check with your local VMR should be made. Making a DSC DISTRESS Call Lift the red cover.
Making a distress call 3 UM425 VHF OM.
Table of Contents Table of Contents Making a DSC DISTRESS Call........................................................................................2 Making a voice distress call..........................................................................................2 Table of Contents....................................................................................... 4 (this page) Introduction............................................................................................................
Table of Contents (Cont'd) Enabling automatic test call reply............................................................................36 Requesting another station's position (POS Request)...............................................36 Receiving a position request (Position Reply)............................................................37 Enabling automatic position reply............................................................................37 Sending your own position (Position Send)..........
Introduction Introduction Features • Watertight Radio Housing: Meets the worldwide JIS6 water resistant specification means it is able to withstand powerful water jets without damage. • Rugged Waterproof Speaker Microphone: With Channel Select, One-Touch 16/9 and Triple Watch Select Keys. Meets the worldwide JIS7 waterproof specifications; submersible at 1.0 metre depth for 30 minutes.
Introduction Table 1 - Terms used in the manual DSC Digital Selective Calling. A VHF radio standard for communicating among boats and sending automated distress calls. GPS Global Positioning System NMEA National Marine Electronics Association. The organization that governs standards for electronic equipment used on boats. NMEA 0183 is the standard for serial data communication used by GPS receivers. MMSI Maritime Mobile Service Identity number.
Getting Started Getting Started What's included UM425 VHF VHF DSC TRANSCEIVER 07 1 Watt INT Memory Scanning Channels 01,03,05,06,07,08 UM425 Radio DC Power Cable Accessory Cable Mounting Bracket and knobs Mounting Hardware Spare Fuse 250V 6A Microphone Hanger and Mounting Hardware 8 UM425 VHF OM.
Getting Started Parts of the radio Antenna connector (SO238) Accessory connector Heat sink ANTENNA 13.8V DC Power connector Table 2 - Rear panel connector functions Connector Connects to Antenna connector Connecting the radio, External VHF antenna with a male PL259 (SO238) page 44. connector and 50 Ω impedance. Minimum 1.2m, 3dB rated antenna for sailboats, 2.4m, 6 dB rated for power boats. For details, see Power connector Nominal 13.8 VDC power supply with negative ground (10.8 VDC to 15.
Getting Started SELECT button LCD display CHANNEL UP DOWN VOLUME-PWR (power) knob (turn clockwise to increase volume) & buttons Microphone cord UM425 VHF VHF DSC TRANSCEIVER 07 1 Watt INT Memory Scanning Channels 01,03,05,06,07,08 1/25W MENU-PA button 16/9-TRI (triple/ dual-watch) button SCAN-MEM (channel memory) button (public address) button DISTRESS button SQUELCH knob (turn clockwise to decrease channel noise) Table 3 - Front panel button functions Button Press to...
Getting Started Button Press to... 1/25W Press and hold to... Change the transmit power (see page 20). MENU-PA Display the radio menu. Use the public address (PA) function. SCAN-MEM Start scanning the channels saved in memory. Save a channel into memory or remove a channel from memory. PUSH- TO-TALK button ▲ (up) button (move up a channel) MIC 16/9 TRI (Triple/DualWatch) button 16 / 9 TRI ▼ (down) button (move down a channel) Table 4 - Microphone button functions Button Press to...
How It Works Turning on the radio Turn the VOLUME-PWR knob clockwise to turn on the radio. As it powers on, the radio displays the user MMSI number; if there is no MMSI set, the radio displays MMSI not entered. When it powers on, the radio selects the last channel used. Setting the UIC channel mode (USA/CAN/INT) NOTE: This menu selection is hidden by default. To access this feature; Turn on the radio while holding down SCAN and ▲buttons.
How It Works In addition to the two main operation modes, the UM425 also provides two different “watch” modes which you can activate during any of the two basic modes. In the watch modes, the radio briefly checks for activity on a specific channel, then returns to its previous mode. Watch mode What it does: Use it when: To turn it on/off: Triple Watch Checks for activity on channels 16 and 9 every two seconds. You want to monitor a channel yet maintain a watch on channels 16 and 9.
How It Works Table 5 - Normal mode status messages Message Meaning GPS Data OK The radio is receiving valid GPS data. Check GPS The radio is not receiving valid GPS data: check the GPS status screen and the GPS connection. Input Position The radio has been unable to receive valid GPS data for at least four hours; it can no longer track your position. You need to manually input your position (see Setting the GPS position manually on page 22).
How It Works Normal mode with Triple and Dual Watch If you activate Triple Watch while operating in normal mode, the radio checks channels 16 and 9 every two seconds; with Dual Watch turned on, the radio only checks channel 16. The radio will not check channels 16 or 9 while you are actively transmitting; it waits until your transmission is finished and then checks the channels. Press and hold the 16/9-TRI button (on the radio or the microphone) for two seconds to turn Triple/Dual Watch on or off.
How It Works Scan mode You can save channels into memory and then use scan mode to monitor those channels. When the radio detects a signal on a channel, it pauses on that channel as long as the signal is received; when the transmission stops, the radio will continue scanning. When it detects a signal, the radio stays on the channel until you press the CHANNEL UP button or the signal stops. Resume scan 08 10 11 12 13 15 14 17 20 The radio scans about 5 channels in 1 second.
How It Works • • To remove a channel from memory, set the radio to that channel, then press and hold the SCAN-MEM button for two seconds. Memory will no longer show on the display. To activate scan mode, press the SCAN-MEM button. Press the SCANbutton again to return to the previous mode. MEM • When the radio automatically stops on a channel, press the CHANNEL button to leave that channel and resume scanning. UP • To end the scan, press the microphone PUSH TO TALK button or the button.
Using Your Radio Using Your Radio To display the radio menu, press the MENU-PA button. The menu has the following options: MENU DSC Call SELECT Individual Group All Ships POS Request Position Send Test Directory Standby Receive Log Exit Setup SELECT USA/CAN/INT* Dual/TriWatch GPS Setup Auto CH SW POS Reply Test Reply Channel Name Group MMSI User MMSI Exit System SELECT Exit SELECT Contrast Lamp Adjust Key Beep Exit (Close Menu) *USA/CAN/INT is hidden by default.
Using Your Radio • The currently selected item is highlighted in reversed out text. • Press the CHANNEL UP button on the radio or the▲button on the microphone to move up a line in the menu; if you are at the top line in the menu, the cursor jumps to the bottom of the menu. • Press the SELECT button to choose the selected item.
Using Your Radio While listening to a channel, adjust the SQUELCH knob until the noise is filtered out and you can only hear the transmission. If you switch to a channel with a lot of noise or with a weak transmission, you may need to adjust the squelch level again. NOTE: Setting the squelch level too high may prevent you from hearing weaker transmissions. If you are having difficulty hearing a transmission, try setting the squelch level lower.
Using Your Radio NOTE: By default, when you change to channel 16, the radio automatically boosts the power to 25 Watts. Be sure to change the power back to 1 Watt if you are not making an emergency transmission. Some channels limit the power of transmission to 1 Watt so that there is less interference between boaters attempting to use the channel at the same time. If you switch to one of these channels, the radio changes back to 1 Watt automatically.
Using Your Radio Changing display and sound options Contrast The UM425 display has 10 levels of contrast. To adjust the contrast, press the MENU-PA while the radio is idle. Select System and then Contrast. Use the CHANNEL UP and CHANNEL DOWN buttons to change the contrast to your desired level then press the SELECT button. To restore the default contrast setting, turn the radio off. Press the MENU-PA button and hold it in while you turn the radio on.
Using Your Radio 1. Display the menu and choose the Setup sub-menu. 2. Select GPS Setup and then choose Position Set. 3. The cursor highlights the hour. Use the CHANNEL UP and CHANNEL buttons to set the displayed hours to match coordinated universal time (UTC, also call Greenwich Mean Time and Zulu Time). When the display matches UTC time, press the SELECT button. DOWN 4. The cursor moves to highlight the minutes.
Using Digital Selective Calling (DSC) Features Using Digital Selective Calling (DSC) Features What is DSC? Digital Selective Calling or DSC is a standard that allows you to call other stations using their unique identification code (the Maritime Mobile Service Identity or MMSI number), just like you would call a phone number. To call another station, just enter that station’s MMSI number and choose the voice channel you want to talk on.
Using Digital Selective Calling (DSC) Features Getting an MMSI number In order to use DSC features, you must be assigned an MMSI number and program that number into your radio. There are two kinds of MMSI numbers: individual numbers for use by single boats and group numbers for use by fleets, boating organizations, event coordinators, etc.
Using Digital Selective Calling (DSC) Features 3. Use the CHANNEL UP and CHANNEL DOWN buttons to change the first of the nine digits; the CHANNEL UP button increases the number and the CHANNEL DOWN button decreases the number. 4. When the first digit is correct, press the SELECT button. The cursor moves to the next digit. Enter the remaining eight digits of the MMSI number in the same way. 5. When the ninth digit is correct, press the SELECT button.
Using Digital Selective Calling (DSC) Features 5. When the ninth digit is correct, press the SELECT button. The radio displays the new MMSI number and asks you to confirm. 6. To save this MMSI number, select Yes. To cancel this MMSI number, select No. The radio returns to the Setup menu. Using the directory The directory lets you store up to 20 MMSI numbers of other stations so you can call them quickly.
Using Digital Selective Calling (DSC) Features Table 6 - Character and text entry order CHANNEL UP button CHANNEL DOWN button Capital letters (A through Z) One blank space Lower-case letters (a through z) Numbers (0 through 9) Punctuation (/ ‘ + -) Punctuation (/ ‘ + -) Numbers (0 through 9) Lower-case letters (a through z) One blank space Capital letters (A through Z) 8. When the first character is correct, press the SELECT button. The cursor moves to the next character.
Using Digital Selective Calling (DSC) Features Making DSC Calls There are essentially four different types of DSC voice calls: Call type What it does When to use it Distress Alerts all stations that you need assistance and sends them your current position. In an emergency only. Individual Calls a single station using the User MMSI. Any time you want to talk to another station. Group Calls all the stations that have the Any time you want to talk with same Group MMSI as yours.
Using Digital Selective Calling (DSC) Features Suppose you are coordinating safety for a sailboat race. Before the race starts, you instruct all the racers to enter your group MMSI number into their radios. During the race: • Throughout the race, you use group calling to update the racers on the time, race status, and any course corrections. • A power boat full of spectators comes a little too close to the race path.
Using Digital Selective Calling (DSC) Features • When the other station accepts the call, both radios switch to the selected response channel for voice transmission. • If the other station cannot respond on the channel you selected, the radio displays Not support CH. Calling a particular group of stations (Group Call) Group calling calls all the stations that share your group MMSI.
Using Digital Selective Calling (DSC) Features Making an automatic distress call If you have programmed your MMSI number, the UM425 can transmit an automated distress call with your current location and nature of the distress. The radio then monitors the channel 16 for a response and repeats the distress call every few minutes until it receives an acknowledgement. To send an automatic distress call, press and hold the DISTRESS button for three seconds.
Using Digital Selective Calling (DSC) Features Receiving a DSC call If your radio receives an individual DSC call from another station, it sounds an incoming call tone and displays the name or MMSI number of the station calling you. To respond to the call, select Send: Able-Comply; the radio sends an acknowledgement and automatically switches to the designated response channel. To reject the call, select Send: Unable-Comply; the radio advises the other station that you are unable to respond to the call.
Using Digital Selective Calling (DSC) Features Table 7 - Receive Log DSC Call Type Receive Log Information Distress MMSI (or name), position, time, nature code. Distress Acknowledge MMSI (or name), distress MMSI, position, time, nature code. Distress Relay MMSI (or name), distress MMSI, position, time, nature code. Distress Relay Acknowledge MMSI (or name), distress MMSI, position, time, nature code. Geographical MMSI (or name), category code. All Ships MMSI (or name), category code.
Using Digital Selective Calling (DSC) Features Making Test Calls (Test) You can use the test call feature to make sure your radio is working and configured correctly. To avoid overloading coastal receiving stations, you should limit test calls to these stations to once a week. NOTE: Many coastal stations have specific frequencies and MMSI numbers you should use for making test calls. Be sure to check with the coastal station before making a DSC test call. 1. Press the MENU-PA button to display the menu.
Using Digital Selective Calling (DSC) Features 6. When the other station acknowledges the test call, the radio displays an acknowledgement screen. Receiving a test call When another station sends you a test call, the radio displays the test request screen: To acknowledge the test call, select Reply To reject the test call, select Cancel.
Using Digital Selective Calling (DSC) Features 1. Press the MENU-PA button to display the menu. 2. Choose the DSC Call sub-menu, then select POS Request. 3. The radio displays the names listed in your directory; use CHANNEL UP and CHANNEL DOWN buttons to highlight the directory entry you want to contact and press the SELECT button. If you want to contact a station that is not in your directory, select Manual. The radio prompts you to enter the MMSI number you want to call.
Using Digital Selective Calling (DSC) Features 1. Press the MENU-PA button to display the menu. 2. Select Setup and then POS Reply. 3. Highlight Auto and press the SELECT button. The radio will automatically transmit your position when it receives a position request. 4. To disable automatic position reply, repeat the steps above and select Manual. Sending your own position (Position Send) If your radio is connected to a GPS receiver, you can send your boat’s position to someone else.
Using Digital Selective Calling (DSC) Features MENU DSC Call SELECT Standby SELECT 1 Watt INT Memory DSC Standby Unattended 88 1. Display the menu and choose the DSC Call sub-menu. 2. Select Standby to place your radio in standby mode. The radio displays the standby screen, above. 3. To cancel standby and return to the mode your radio was in, press any button.
Renaming Channels Renaming Channels If you discover that a marine radio channel has a different common name in your local area, you can change the name of that channel to make it easier for you to use (see the channel list on page 57 for the default channel names). To rename a channel, follow the steps below: 1. Display the menu and choose the Setup sub-menu. 2. Select Channel Name. The screen displays the list of channels. 3.
Installing the Hardware Installing the Hardware Mounting the radio The UM425 can sit at any angle in the mounting bracket so it can easily accommodate the best location. First, determine the best place to mount the radio. For optimum performance, find a location that can: • Properly support the weight of the radio, approximately 2 pounds or 0.9 kilograms. You may need to use some type of anchor with the mounting screws to hold the radio, depending on the surface.
Installing the Hardware 2. Position the radio into the desired location. Mark the edges of the bracket on the mounting surface. 3. Remove the mounting bracket drill template from the back of the manual, and use the template to mark the drill holes on the mounting surface. 4. Drill the holes for the mounting bracket; be sure to follow any special requirements of the mounting surface. 5. Remove the bracket from the radio, and use the mounting hardware to secure the bracket to the mounting surface.
Installing the Hardware Connecting the radio To operate correctly, your UM425 requires two electrical connections: • providing it with power from the boat’s electrical system • connecting a VHF-FM marine antenna to the antenna connector Power supply requirements VHF antenna requirements Nominal 13.8 VDC power supply with a negative ground (10.8 VDC to 15.6 VDC). Power leads should be kept as short as possible. A direct connection to the power supply is ideal.
Installing the Hardware 1. Connect the BLACK wire of the included power cable to the NEGATIVE (-) side of your power source. 2. Connect the RED wire of the included power cable to the POSITIVE (+) side of your power source. 3. Connect the power cable to the power connector on the back of the UM425. (The power connector only fits one way.) NOTE: To extend the life of the radio, use waterproof tape to seal electrical connections. 4. Install your antenna according to the manufacturer’s instructions. 5.
Installing the Hardware Connecting accessories Connecting to a GPS receiver If you connect the radio to a GPS receiver, the radio can automatically transmit your current position during an automated distress call or during a normal DSC call. The UM425 supports a standard NMEA0183 input from a GPS receiver. Follow the steps below to connect the UM425 to your GPS receiver: Accessory connector 13.8V DC Accessory cable Orange: NMEA OUT (-) Black: Ext.
Installing the Hardware Table 8 - Common GPS receivers and connections GPS NMEA0183 OUTPUT Wire Color (Connect to GREEN WIRE on UM425) Ground Wire Color (connect to BARE WIRE on UM425) GPS Manufacturer Model Number(s) Furuno GP1650, GP1850 White Black Furuno GP30, GP36 White Blue Garmin Fixed Mount Models Blue Black Garmin Portable Models Brown Black JRC 100 Series Green Black JRC 200 Series White Black JRC GPS500 Yellow Green Lowrance / Eagle Fixed Mount Models White Black
Installing the Hardware When the GPS receiver is correctly connected, the display shows GPS Data OK. If there is a problem with the GPS connection, the display shows Check GPS. When the display shows GPS Data OK, press the SELECT button to open the GPS status screen and see detailed GPS data: Time Date Course Latitude Longitude 06/20 11:00:00 o 208 30. 0 KT o 35 40. 610 N o 139 46.
Installing the Hardware 6. If Daylight Savings Time is currently in effect, select On. If Daylight Savings Time is not currently in effect, select Off. 7. Press the SELECT button. The radio activates the new time setting and returns to the GPS Setup menu. Connecting to a charplotter The UM425 provides a standard NMEA0183 GPS output that you can connect to a chartplotter.
Installing the Hardware 1. Disconnect the accessory cable from the accessory connection on the radio. 2. Connect the BLACK wire of the accessory cable to the GROUND WIRE of your external speaker. 3. Connect the RED wire of the accessory cable to the POSITIVE (+) WIRE of your external speaker. 4. Be certain all wire connections are secure and that all open wires are adequately covered. 5.
Installing the Hardware Using the PA feature 1. Press and hold the MENUbutton for two seconds to activate the PA feature. The display shows PA in the upper right hand corner. PA 2. Public Address Press and hold the microphone PUSH TO TALK button. Speak clearly Mode Selected in your normal voice (you don’t have to shout). Use the VOLUME-PWR knob on your UM425 to adjust the volume of the PA speaker. PA 3. Release the PUSH TO TALK button when you're finished talking. 4.
Maintenance and Troubleshooting Maintenance and Troubleshooting Due to its rugged design, the UM425 requires very little maintenance. However, it is a precision electronic instrument, so you should follow a few precautions: • If the antenna has been damaged, you should not transmit except in the case of an emergency. A defective antenna may cause damage to your radio. • You should arrange for periodic performance checks with your Uniden dealer.
Maintenance and Troubleshooting Problem Things to Try I’m not getting any GPS data on my display. Make sure your GPS receiver is correctly connected (see Connecting to a GPS receiver). Make sure your GPS receiver is working properly. Make sure that your GPS receiver supports the NMEA parameters described in NMEA Operation on page 63. I can’t make Group DSC calls. Make sure the Group MMSI was entered correctly.
Maintenance and Troubleshooting Engine Noise Suppression Interference from the noise generated by the electrical systems of engines is sometimes a problem with radios. The UM425 has been designed to be essentially impervious to ignition noise and alternator noise. However, in some installations it may be necessary to take measures to further reduce the effect of noise interference.
Specifications Specifications Table 9 - Radio specifications (All specifications are subject to change without notice.) General Controls Volume-Pwr, Squelch Status Indicators Transmit power, Scan mode, Triple Watch mode, Battery High, Battery low, USA, CAN, INT, Memory, GPS status and Channel Display Display LCD (Full Dot Matrix) Buttons 16/9-Tri, Scan-Mem, Channel Up, Channel Down, MenuPA, Select, 1/25W, and Distress. Connectors Antenna, accessory, and DC power Size H 66.6 mm x W 162.
Specifications Transmitter Power Output 1 watt or 25 watt (user selectable) Power Requirement 25 watts output: 6A@13.
Specifications 56 UM425 VHF OM.
Specifications Channel and frequencies Table 10 - International Channel Frequencies and Channel Tag Ch No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 60 61 62 63 64 65 66 67 68 69 70 RX Freq 160.6500 160.7000 160.7500 160.8000 160.8500 156.3000 160.9500 156.4000 156.4500 156.5000 156.5500 156.6000 156.6500 156.7000 156.7500 156.8000 156.8500 161.5000 161.5500 161.6000 161.6500 161.7000 161.7500 161.8000 161.8500 161.9000 161.9500 162.0000 160.6250 160.6750 160.7250 160.
Specifications Table 10 - International Channel Frequencies and Channel Tag (cont'd) Ch No. 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 RX Freq 156.5750 156.6250 156.6750 156.7250 156.7750 156.8250 156.8750 161.5250 161.5750 161.6250 161.6750 161.7250 161.7750 161.8250 161.8750 161.9250 157.3750 157.4250 TX Freq 156.5750 156.6250 156.6750 156.7250 156.7750 156.8250 156.8750 156.9250 156.9750 157.0250 157.0750 157.1250 157.1750 157.2250 157.2750 157.3250 157.3750 157.
Specifications Table 11 - USA Channel Frequencies and Channel Tag Ch No. RX Freq (MHz) TX Freq (MHz) Status 1 “A” 156.0500 156.0500 Simplex 5 “A” 156.2500 156.2500 Simplex 6 7 “A” 8 9 10 11 12 13 14 15 16 17 18 “A” 19 “A” 20 20 “A” 21 “A” 22 “A” 23 “A” 24 25 26 27 28 63 “A” 65 “A” 66 “A” 67 68 69 70 71 72 73 74 75 156.3000 156.3500 156.4000 156.4500 156.5000 156.5500 156.6000 156.6500 156.7000 156.7500 156.8000 156.8500 156.9000 156.9500 161.6000 157.0000 157.0500 157.1000 157.1500 161.
Specifications Table 11 - USA Channel Frequencies and Channel Tag (cont'd) Ch No. 76 77 78 “A” 79 “A” 80 “A” 81 “A” 82 “A” 83 “A” 84 85 86 87 88 RX Freq (MHz) 156.825 156.8750 156.9250 156.9750 157.0250 157.0750 157.1250 157.1750 161.8250 161.8750 161.9250 157.3750 157.4250 TX Freq (MHz) 156.8250 156.8750 156.9250 156.9750 157.0250 157.0750 157.1250 157.1750 157.2250 157.2750 157.3250 157.3750 157.
Specifications Table 12 - Canadian Channel Frequencies and Channel Tag Ch No. 1 2 3 4 “A” 5 “A” 6 7 “A” 8 9 10 11 12 13 14 15 16 17 18 “A” 19 “A” 20 21 “A” 22 “A” 23 24 25 26 27 28 60 61 “A” 62 “A” 63 "A" 64 64 “A” 65 “A” 66 “A” 67 68 69 70 RX Freq 160.6500 160.7000 160.7500 156.2000 156.2500 156.3000 156.3500 156.4000 156.4500 156.5000 156.5500 156.6000 156.6500 156.7000 156.7500 156.8000 156.8500 156.9000 156.9500 161.6000 157.0500 157.1000 161.7500 161.8000 161.8500 161.9000 161.9500 162.0000 160.
Specifications Table 12 - Canadian Channel Frequencies and Channel Tag (cont'd) Ch No. 71 72 73 74 75 76 77 78 “A” 79 “A” 80 “A” 81 “A” 82 “A” 83 83 “A” 84 85 86 87 88 RX Freq 156.5750 156.6250 156.6750 156.7250 156.7750 156.8250 156.8750 156.9250 156.9750 157.0250 157.0750 157.1250 161.7750 157.1750 161.8250 161.8750 161.9250 157.3750 157.4250 TX Freq 156.5750 156.6250 156.6750 156.7250 156.7750 156.8250 156.8750 156.9250 156.9750 157.0250 157.0750 157.1250 157.1750 157.1750 157.2250 157.2750 157.
d) Specifications NMEA Operation This radio supports NMEA0183 version 3.01. NMEA Input If you have difficulty getting the UM425 to receive data from your GPS receiver, check the device’s configuration. It should be set to the parameters shown in the table below. Table 13 - NMEA Input Parameters Baud rate 4800 bps Data bits 8 Parity None Stop bits 1 Data amplitude Over 3.0 V Drive capability Over 10 mA • • • • • The radio supports RMC, GLL, GNS, GGA and ZDA sentences.
Regulations and Safety Warnings Regulations and Safety Warnings Basic radio guidelines You should familiarize yourself with the rules on marine radios and be aware of which rules apply to your boat. DSC: Frequently Asked Questions The following information is sourced from the Australian Maritime Safety Authority's DSC FAQ. What is the status of VHF DSC coverage in Australia? In Australian waters, VHF DSC is for ship-to-ship alerting.
Regulations and Safety Warnings How can a MMSI be applied for? The Australian Maritime Safety Authority allocates MMSI. To apply for an MMSI complete the MMSI Application form available for download via www.amsa.gov.au/mmsi. This page has important information about MMSI and DSC radio. What qualifications are needed to operate a VHF DSC radio? The minimum qualification to operate a VHF radio with or without DSC is a Marine Radio Operator’s VHF Certificate of Proficiency (MROVCP).
Two Year Limited Warranty UNIDEN UM425 VHF IMPORTANT Satisfactory evidence of the original purchase is required for warranty service Please refer to our Uniden website for any details or warranty durations offered in addition to those contained below. Warrantor The warrantor is either Uniden Australia Pty Limited ABN 58 001 865 498 (“Uniden Aust”) or Uniden New Zealand Limited (“Uniden NZ”) as the case may be.
22 mm/ 0.87 in (7/8) 18.5 mm/ 0.73 in (3/4) 15.5 mm/ 0.61 in (5/8) 53 mm/ 2.1 in (2 3/32) 40 mm/ 1.6 in (1 9/16) 156 mm/ 6.14 in (6 5/32) 36 mm/1.42 in (1 7/16) Mounting Bracket Template 5.5 mm/ 0.2 in (7/32) 22 mm/ 0.87 in (7/8) 8 mm /0.31 in (5/16) 67 UM425 VHF OM.
© 2011 Uniden Australia Pty Limited/Uniden New Zealand Limited Printed in PRC UTZZ01627ZA(0) UM425 VHF OM.
