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53

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. The UM425 radio DC battery wires, antenna lead,

and accessory cables should be routed away from the engine and engine

compartment, and from power cabling carrying high currents. In severe cases

of noise interference, it may be necessary to install a noise suppression kit.

Contact the dealer where you purchased the radio for more information.

UM425 VHF OM.indd 53

28/9/11 11:55:22 AM

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Содержание UM425 VHF DSC

Страница 1: ...UM425 VHF DSC Marine Radio...

Страница 2: ...r GPS State the nature of your distress e g are you sinking medical emergency man 7 overboard on fire adrift etc Give number of persons aboard and conditions of any injured persons 8 Estimate present...

Страница 3: ...Making a distress call 3...

Страница 4: ...g the channel 20 Making a transmission 20 Boosting the transmission power 20 Choosing Triple Watch or Dual Watch 21 Changing display and sound options 22 Contrast 22 Lamp adjust 22 Turning the key bee...

Страница 5: ...osition request Position Reply 37 Enabling automatic position reply 37 Sending your own position Position Send 38 Putting the radio into standby 38 Disabling automatic channel switching 39 Renaming Ch...

Страница 6: ...uccession Transmitter Power Level Select Lets you boost the transmitter power from 1 watt to 25 watts for added transmission distance Battery level display and tone Sounds an alert tone if the battery...

Страница 7: ...rds 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 A unique nine digit number that id...

Страница 8: ...t INT Memory Scanning Channels 01 03 05 06 07 08 VHF DSC TRANSCEIVER UM425 VHF UM425 Radio DC Power Cable Accessory Cable Mounting Bracket and knobs Mounting Hardware Microphone Hanger and Mounting Ha...

Страница 9: ...l VHF antenna with a male PL259 SO238 connector and 50 impedance Minimum 1 2m 3dB rated antenna for sailboats 2 4m 6 dB rated for power boats Connecting the radio page 44 Power connector Nominal 13 8...

Страница 10: ...SQUELCH knob turn clockwise to decrease channel noise Button Press to Press and hold to SELECT Choose an option on a menu CHANNEL UP Move up one channel at a time Move quickly up the channels CHANNEL...

Страница 11: ...16 9 TRI Triple Dual Watch button up button move up a channel down button move down a channel Table 4 Microphone button functions Button Press to Press and hold to Move up one channel at a time Move...

Страница 12: ...nited States UIC channels you will need to change the channel mode Press the 1 MENU PA button to display the menu and choose the Setup sub menu Select 2 USA CAN INT The screen displays the UIC channel...

Страница 13: ...indicators will display at the same time 25 Marine Operator 25 Watts INT Memory GPS Data OK Transmit power 1 W or 25 W Current channel is stored in memory Status messages see the status message table...

Страница 14: ...atch is turned on Dual Watch Dual Watch is turned on Using the radio in normal mode To transmit press and hold the PUSH TO TALK button on the microphone Release the button when you are finished talkin...

Страница 15: ...tch on or off To change between Triple or Dual Watch see page 21 Normal mode with Triple and Dual Watch If you activate Triple Watch while operating in normal mode the radio checks channels 16 and 9 e...

Страница 16: ...can In scan mode you can get the following information from the display some indicators will not always be displayed 1 Watt INT Memory Scanning Channels 01 03 05 06 07 08 07 Transmit power last used C...

Страница 17: ...SCAN MEM button The radio remains on the last scanned channel Scan mode with Triple and Dual Watch If you activate Triple Watch while operating in scan mode the radio checks channels 16 and 9 every t...

Страница 18: ...W POS Reply Test Reply Channel Name Group MMSI User MMSI Exit Contrast Lamp Adjust Key Beep Exit MENU DSC Call SELECT Setup SELECT System SELECT Close Menu Exit SELECT Using Your Radio To display the...

Страница 19: ...button to go back to the previous menu screen From any menu screen choose Exit or press the 16 9 TRI button to close the menu screen Making a voice MAYDAY call see inside front cover Turn the volume k...

Страница 20: ...tuck microphone problems or situations where the PUSH TO TALK button is pushed accidentally the radio limits your talk time to 5 minutes in a single transmission If you talk for over 5 minutes continu...

Страница 21: ...adio briefly checks channels 16 and 9 every two seconds In Dual Watch mode the radio checks channel 16 only Generally Triple Watch is used in areas where channel 9 is used as a hailing frequency while...

Страница 22: ...N buttons to change the brightness to your desired level then press the SELECT button Turning the key beep on and off Key beep is the tone that sounds when you press a key or a button To turn off the...

Страница 23: ...ime When the display matches UTC time press the SELECT button 4 The cursor moves to highlight the minutes Use the CHANNEL UP and CHANNEL DOWN buttons to adjust the minutes and press the SELECT button...

Страница 24: ...knowledgement The DSC standard dedicates a VHF channel channel 70 to digital transmissions only Since digital transmissions require less bandwidth voice transmissions channel 70 avoids the problems of...

Страница 25: ...Development Radio Spectrum Management at Email info rsm govt nz or free phone 0508 776 4630 The DSC radio owner should indicate they are seeking an MMSI for a VHF Recreational Radio and would then nee...

Страница 26: ...save this MMSI number select Yes To cancel this MMSI number select No The radio returns to the Setup menu Group MMSI number You can change the group MMSI number as often as you want Follow the steps b...

Страница 27: ...ry The screen displays any previously entered MMSI numbers and names 3 To add a new MMSI number to the directory select New 4 The radio prompts you to enter the nine digit MMSI number Use the CHANNEL...

Страница 28: ...press and hold the SELECT button to complete the name entry If you press and hold the SELECT button without entering a name the radio uses the MMSI number in the directory list 9 When you finish enter...

Страница 29: ...ation using the User MMSI Any time you want to talk to another station Group Calls all the stations that have the same Group MMSI as yours Any time you want to talk with the whole group you are travel...

Страница 30: ...ess the 1 MENU PA button to display the menu Choose the 2 DSC Call sub menu then select Individual The radio displays the names listed in your directory use 3 CHANNEL UP and CHANNEL DOWN buttons to hi...

Страница 31: ...as a serious problem but is not yet in distress Open the menu and select the 1 DSC Call sub menu Select 2 All Ships and then choose whether this is an Urgency call or a Safety call The radio asks you...

Страница 32: ...I number If you want to include the nature of your distress in the distress call use the distress procedure below 1 Press the DISTRESS button 2 The radio displays the list of distress conditions use t...

Страница 33: ...ack of the calls you receive but do not answer The receive log is useful if you have been off your boat or away from your radio and want to see who has tried to contact you The radio displays the last...

Страница 34: ...l Acknowledge MMSI or name Completed Unattended category code Test MMSI or name category code Test Acknowledge MMSI or name category code Pos Reply MMSI or name position time category code Pos Request...

Страница 35: ...nd press the SELECT button The radio displays the MMSI number you 4 are about to call and asks you to confirm If you want to call the displayed MMSI number select Send To cancel the call select Cancel...

Страница 36: ...test request screen To acknowledge the test call select Reply To reject the test call select Cancel Enabling automatic test call reply If you want the radio to automatically reply to all test call you...

Страница 37: ...connected to a chartplotter through the NMEA OUT connection see page 48 the position information will also be displayed on the plotter screen If the other station does not have valid GPS data the rad...

Страница 38: ...OWN 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...

Страница 39: ...bridge call you may not want the radio to automatically switch channels when it receives a DSC call In cases like this you can disable automatic channel switching If you receive an individual call th...

Страница 40: ...2 characters Use the CHANNEL UP and CHANNEL DOWN buttons to change the first character See Table 6 Character and text entry order on page 28 for the available characters and the order in which they sc...

Страница 41: ...eed to use some type of anchor with the mounting screws to hold the radio depending on the surface Keep the battery leads as short as possible Keep the antenna lead in wire as short as possible Allow...

Страница 42: ...e the template to mark the drill holes on the mounting surface Drill the holes for the mounting bracket be sure to follow any special 4 requirements of the mounting surface Remove the bracket from the...

Страница 43: ...ower leads should be kept as short as possible A direct connection to the power supply is ideal Minimum of 14 AWG copper wire for extensions up to 6m 12 AWG wire for extensions from 6m to 10m or 10 AW...

Страница 44: ...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 Install your antenna according to the manufacturer s instruc...

Страница 45: ...r Green GPS Data IN Bare wire Ground GPS Data IN Black Ext Speaker GND Red External Speaker Brown PA Speaker Blue PA Speaker GND Orange NMEA OUT Yellow NMEA OUT Line up arrows to connect Disconnect th...

Страница 46: ...Orange Black Magellan Fixed Mount Models Gray Black Magellan Portable Models Orange Black Northstar All Models Yellow Black RayMarine 420 Yellow Brown RayMarine 520 620 Blue Brown RayMarine RL Series...

Страница 47: ...u are close to the border of a time zone you can also adjust for Daylight Savings Time Follow the steps below to adjust the time Display the menu and choose the 1 Setup sub menu Select 2 GPS Setup and...

Страница 48: ...ta INPUT Connect the YELLOW wire of the 3 accessory cable to the POSITIVE wire of your chartplotter s NMEA data INPUT Be certain all wire connections are secure and that all open wires are 4 adequatel...

Страница 49: ...speaker If you connect the radio to a PA speaker you can use the PA feature to make announcements to other boats and people nearby The UM425 supports an external PA speaker with the following specific...

Страница 50: ...e of the PA speaker Release the 3 PUSH TO TALK button when you re finished talking To turn off the PA feature and return to the radio mode you were using 4 press and hold the MENU PA button for two se...

Страница 51: ...mit on a receive only channel see the channels and frequency tables starting on page 57 Make sure you are transmitting at the correct power level for this channel see the channels and frequency tables...

Страница 52: ...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 Where can I fi...

Страница 53: ...noise However in some installations it may be necessary to take measures to further reduce the effect of noise interference The UM425 radio DC battery wires antenna lead and accessory cables should be...

Страница 54: ...accessory and DC power Size H 66 6 mm x W 162 6 mm x L 128 mm without Heat Sink H 2 62 inches x W 6 40 inches x L 5 04 inches without Heat Sink Weight 0 93kg 2 05 pounds Supply Voltage Nominal 13 8V...

Страница 55: ...Power Stabilization Built in automatic level control ALC Frequency Range 156 to 158 MHz Frequency Stability 1 5kHz 15 C to 55 C Receiver Frequency Range 156 to 162 MHz Sensitivity 0 25 V for 12 dB SI...

Страница 56: ...Specifications 56...

Страница 57: ...Safety Calling 17 156 8500 156 8500 Simplex 1W Govt maritime control 18 161 5000 156 9000 Duplex Port operation 19 161 5500 156 9500 Duplex Commercial 20 161 6000 157 0000 Duplex Port operation 21 161...

Страница 58: ...eration ship ship 78 161 5250 156 9250 Duplex Port operation 79 161 5750 156 9750 Duplex Port operation 80 161 6250 157 0250 Duplex Port operation 81 161 6750 157 0750 Duplex Port operation 82 161 725...

Страница 59: ...cial 19 A 156 9500 156 9500 Simplex Commercial 20 161 6000 157 0000 Duplex Port operation 20 A 157 0000 157 0000 Simplex Port operation 21 A 157 0500 157 0500 Simplex Coast guard only 22 A 157 1000 15...

Страница 60: ...ation 77 156 8750 156 8750 Simplex 1W Port operation ship ship 78 A 156 9250 156 9250 Simplex Non commercial 79 A 156 9750 156 9750 Simplex Commercial 80 A 157 0250 157 0250 Simplex Commercial 81 A 15...

Страница 61: ...Simplex 1W State control 18 A 156 9000 156 9000 Simplex Commercial 19 A 156 9500 156 9500 Simplex Canadian coast guard 20 161 6000 157 0000 Duplex 1W Port operation 21 A 157 0500 157 0500 Simplex Cana...

Страница 62: ...lex Inter ship 81 A 157 0750 157 0750 Simplex Canadian coast guard 82 A 157 1250 157 1250 Simplex Canadian coast guard 83 161 7750 157 1750 Duplex Canadian coast guard 83 A 157 1750 157 1750 Simplex C...

Страница 63: ...ence is received the radio uses the information based on the following priority order Status RMC GLL GNS GGA Latitude Longitude RMC GLL GNS GGA UTC Time RMC GLL GNS GGA ZDA Date RMC ZDA Speed Course R...

Страница 64: ...lling channel Parties receiving the DSC distress alert should switch to Channel 16 and acknowledge the MAYDAY call by voice giving their identity and signalling Received MAYDAY If the party in distres...

Страница 65: ...further information about qualifications licensing and DSC operations It is available at www amcom amc edu au Antenna Selection and Installation Your UM425 has been designed to accommodate all of the...

Страница 66: ...ers addresses and images that may be stored on your Product Statement of Remedy If the Product is found not to conform to this warranty as stated above the Warrantor at its discretion will either repa...

Страница 67: ...Bracket Template 22 mm 0 87 in 7 8 156 mm 6 14 in 6 5 32 5 5 mm 0 2 in 7 32 18 5 mm 0 73 in 3 4 22 mm 0 87 in 7 8 36 mm 1 42 in 1 7 16 40 mm 1 6 in 1 9 16 15 5 mm 0 61 in 5 8 53 mm 2 1 in 2 3 32 8 mm...

Страница 68: ...2011 Uniden Australia Pty Limited Uniden New Zealand Limited Printed in PRC UTZZ01627ZA 0...

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