Cobra Electronics MRHH425 Handheld Marine Transceiver with GMRS User Manual

Cobra Electronics Corporation Handheld Marine Transceiver with GMRS

Contents

users manual 3

Introduction51Nothing Comes Close to a Cobra®Setup Mode ProgrammingTo Set DCS Code Entry:1. Display will show DCS icon and OFF icon flashing.NOTEIf DCS was previously set to a Code number, thedisplay will show the current GMRS channel and flashthe DCS icon and Code number.2. Codes begin at 01 and go to 83, followed by OFFand return back to 01 again. Last used GMRSchannel will be shown in the large digit display.NOTEIf CTCSS is On, then DCS must be Off. If DCS is On,then CTCSS must be Off.3. Press Channel Up/Down button to change codenumber, or press and hold Channel Up/Down buttonto rapid advance (scroll).4. Press Call/Enter/Setup button to save entry andmove to the next setup programming mode.Voice Activated Transmit (VOX) ModeThe VOX Mode On or Off and VOX Sensitivity Level setupprocedures are the next two settings in GMRS ModeProgramming. Follow the same procedures on page 44, inMarine (VHF) Setup Programming, to set these functions.After these two settings have been made, pressCall/Enter/Setup button to save each entry and move to thenext setup programming mode.Operating Your RadioDCS Code EntryCTCSS Code NumberVOX Mode On/OffVOX LevelMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 51
52 EnglishSetup Mode ProgrammingCTCSS and DCS Code Scan ModeThis mode will allow you to scan for all incoming audioCTCSS and DCS coded signals.To Set CTCSS Code Scan:1. Display will show current CTCSS working channel.CTCSS and SCAN icons and small digit CTCSS Codenumber will be flashing. DCS is not active duringCTCSS operation.2. Press Channel Up/Down button to start CTCSSCode number scan.3. If there is no input activity within five (5) seconds,CTCSS Code scan will automatically continue.4. When a valid CTCSS Code is detected, the radio willstop scanning and open a path to the incomingCTCSS audio transmission. This connection willcontinue for as long as the signal is present. Whenthe audio transmission ends, the CTCSS Code Scanwill resume after five (5) seconds.5. Press Call/Enter/Setup button to save entry andmove to the next setup programming mode.To Set DCS Code Scan:1. Display will show current DCS working channel.DCS and SCAN icons and small digit DCS Codenumber will be flashing. CTCSS is not active duringDCS operation.2. Press Channel Up/Down button to start DCS Codenumber scan.3. If there is no input activity within five (5) seconds,the CTCSS Code scan will automatically continue.4. When a valid DCS Code is detected, the radio willstop scanning and open a path to the incoming DCSaudio transmission. This connection will continuefor as long as the signal is present. When the audiotransmission ends, the DCS Code Scan will resumeafter five (5) seconds.5. Press Call/Enter/Setup to save entry and move tothe next setup programming mode.Operating Your RadioCTCSS Code ScanDCS Code ScanMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 52
53Nothing Comes Close to a Cobra®Setup Mode ProgrammingVibrAlert®Mode, Call Tone Mode, Roger Beep Mode and Key ToneModeThe VibrAlert®, Call Tone, Roger Beep and Key Tone setup procedures are the nextfour (4) settings in GMRS Mode Programming. Follow the same procedures onpages 47 through 49, in Marine (VHF) Setup Programming, to set these functions.After these four (4) settings have been made, press Call/Enter/Setup button to saveeach entry and move to the next setup programming mode.You have now ended GMRS Setup programming mode and will enter GMRSStandby mode.Operating Your RadioMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 53
54 EnglishSetup Mode ProgrammingProgramming these features will allow your radio to listen toall NOAA Hazard Alert radio channels. In this process, youwill be programming the channel settings for the “SpecificArea Message Encoding (SAME)” and “Emergency AlertMessages” sent by NOAA. See channels and frequencieslisted on page 31.Start from WX Alert Standby mode to begin WX Alert Setupprogramming. Press and hold the Call/Enter/Setup buttonfor two (2) seconds to enter the programming mode.To Set WX Alert On or Off:1. WX Alert mode is the first mode that begins WXAlert Setup programming.2. Display will show WX Alert icon and ON or OFFflashing.3. Press Channel Up/Down button to select ON orOFF.4. Press Call/Enter/Setup button to save this entry andmove to the next setup programming mode.To Set WX Auto Search (SCAN) On or Off:1. Display will show WX Alert icon and SCAN, ON orOFF is flashing.2. Press Channel Up/Down button to select SCAN, ONor OFF.3. Press the Call/Enter/Setup button to save entry.NOTEWhen WX Auto Search (SCAN) is set to On, weather channel scanning will start automatically and scan all available weather channels until the strongest channelis found. This will happen under the following conditions:■WX Alert is engaged.■Radio is in VHF Standby.■WX received signal level falls below a presetlevel.■Radio is in Power Saver mode.Weather (WX) Alert Mode ProgrammingOperating Your RadioWX Alert On/OffWX Auto Search (SCAN)MRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 54
55Nothing Comes Close to a Cobra®Setup Mode ProgrammingTo Set Specific Area Message Encoding (SAME) AlertOn or Off:SAME is an advanced weather alert feature. Leave thisset to OFF if you are not sure about yourunderstanding of its operation.1. Display will show SAME icon and ON or OFF will beflashing.NOTEIf SAME Alert is turned On, the WX Alert will beturned Off automatically.2. Press Channel Up/Down button to select ON orOFF. 3. Press Call/Enter/Setup button to save selection andmove to the next setup programming mode.Operating Your RadioSAME Alert On/OffMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 55
56 EnglishSetup Mode ProgrammingTo Set SAME FIPS Code Location1. Display will show COdE, not flashing. SAME icon isflashing along with the two (2) digits to the right ofCOdE.2. Press Channel Up/Down button to select channelnumber.NOTETen channel locations are available (00-09).3. Press and release the Call/Enter/Setup button toenter geographic weather locations as identified byFIPS (Federal Information Processing System) areain the United States. NOTEFIPS codes identify geographic areas in the UnitedStates as shown on the Internet website:www.census.gov/datamap/flipslist/allst.txt .4. The display will show “ ------,” or last entered FIPScode. One (1) digit in display will be flashing.5. Press Channel Up/Down button to select first digit.6. Press and release Call/Enter/Setup button toadvance to next digit code. Press and releaseMEM/ESC button to back up. Repeating, press andrelease of the MEM/ESC button, will back up to thetop level.7. Continue steps 5 and 6 until all six (6) digits areentered.8. Press and release Call/Enter/Setup button to saveentry.The code is now saved to one of the 10 allowed inmemory and it is turned On. When the words “Code01” are shown, then you can choose to have this codeset to ON or OFF.9. Press and hold Call/Enter/Setup button to togglebetween active and non-active status of FIPS codes.If the display changes from the FIPS code entered toHLdSEt, the FIPS code entered is not an active FIPScode. Try entering the FIPS code again.10. Press MEM/ESC from SAME Location screen(example: Code 01) to save setting.You have now ended WX Alert Setup programming modeand will enter WX Alert Standby mode.Operating Your RadioSAME CodeFIPS Code SetInvalid FIPS CodeMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 56
57Nothing Comes Close to a Cobra®Standby/Receive andTransmitStandby/Receive and Transmit •Marine (VHF), GMRS and WX Alert Standby Band SelectionsThe BAND button allows you to quickly toggle between theMarine (VHF), GMRS and WX Alert Standby bands.To Make a Band Selection:Press BAND button to toggle between the Marine(VHF) Standby, GMRS Standby or WX Alert Standbybands.Marine (VHF) Standby ModeMarine Standby mode is the default mode for the radiowhenever it is turned On. From this mode, you can changecurrent settings by becoming familiar with the different keyfunctions. While in Marine Standby mode, the user will beable to Transmit (Tx) by pressing the Push to Talk (Talk)button. Signals in Receive (Rx) mode will be received onthe selected channel(s).NOTECoast Guard alerts are broadcast on Channel 16 and you need to have the WX Alert or SAME turned On toreceive NOAA weather alerts. While in Marine Standby mode, you will receive any messages sent on the channel to which you are tuned.Operating Your RadioBAND ButtonMarine (VHF) Standby ModeMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 57
58 EnglishIntroductionStandby/Receive andTransmitGMRS Standby ModeThe GMRS (General Mobile Radio Service) Standby featureis a land-mobile service available for short-distance, two-way communications in the USA. You must have a valid FCClicense to communicate on these channels (see page 28).While in GMRS Standby mode, the user will be able toTransmit (Tx) by pressing the Push to Talk (Talk) button.Signals in Receive (Rx) mode will be received on theselected channel(s).When in GMRS Standby mode, the radio has the ability toreceive calls as well as transmit calls. NOTEAs GMRS channels are scrolled, you will see CTCSSor DCS icons displayed on the LCD screen if thecodes have been previously programmed. You willonly hear transmissions from other radios with theequivalent subcodes programmed.When a transmission is received, the following icons will bedisplayed.Receive (Rx) IconBar Graph IconOperating Your RadioGMRS Standby ModeGMRS ReceiveReceive (Rx) IconMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 58
Introduction59Nothing Comes Close to a Cobra®Standby/Receive andTransmitTransmit (Tx) and Receive (Rx) ModesTransmit (Tx) and Receive (Rx) modes gives you the abilityto interact with other GMRS radios. When you use thiscapability, be sure to follow the procedures and to observethe courtesies that govern its use so everyone benefits. (Seepages 18 through 27) to help you select the properchannels.When a talk transmission occurs, the following icons will bedisplayed.Transmit (Tx) Icon Bar Graph IconTo Transmit a Message:1. Check to see that your radio is set to a properchannel for the type of message you plan to send.2. Toggle to the Low Power setting.3. With the microphone about 2 in. [5 cm] from yourmouth, press and hold the Talk button and speakinto the microphone. The Tx icon will appear on theLCD.4. Release the Talk button when you are finishedspeaking. Your radio can only operate in eitherTransmit (Tx) or Receive (Rx) mode at any giventime. You will not hear the response to yourmessage unless the Talk button is released. If theBattery Power icon begins blinking on the LCDwhen the Talk button is pressed, the radio will NOTtransmit.NOTEIf the Talk button is held down for five (5) minutes,the radio will automatically sound a series of beepsand cease transmitting to prevent unwanted signalgeneration and battery drain. As soon as the Talkbutton is released, it can be pressed again to resumetransmission.Operating Your RadioLow Power ModeCheck Channel NumberTalk ButtonGMRS TransmitTransmit (Tx) IconMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 59
60 EnglishIntroductionStandby/Receive andTransmitWeather (WX) Standby ModeTo enter the WX Standby mode, press and hold the WX/H-M-L button. All common operating functions of theradio will work the same in WX Standby mode as they do inthe normal Marine and GMRS Standby modes.WX Alert Standby ModeNOAA broadcasts weather information as described in theNOAA weather channels section on page 31 of this manual.When NOAA broadcasts a weather alert signal and yourradio is in WX Alert Standby mode, the following items willbe displayed on the LCD display:The WX icon (cloud/sun) icon will be displayed.The last used weather channel will be displayed.The bar graph will display received signal strength level.The WX Alert icon (safety triangle) will be displayed).NOTEOnly one (1) or two (2) of the weather channels willbe operating in any given location (only in Receive(Rx) mode). You will need to select the channel withthe strongest signal in your location. NOTEWhen in the WX Alert mode, and NOAA sends the1050Hz alert tone, the radio will sound a series of loudbeeps regardless of the volume control setting.Operating Your RadioWX Alert Standby ModeReceive (Rx) IconWX/H-M-L ButtonMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 60
Introduction61Nothing Comes Close to a Cobra®Standby/Receive andTransmitWX Auto Search (SCAN) Mode Function:The purpose of the WX Auto Search (SCAN) function is toenable the receiver to automatically scan for an active WXchannel under the following conditions:1. WX Auto Search (SCAN) function is On.2. WX Alert or SAME is On (one or the other but not both).3. The radio is tuned to a Marine VHF channel and hasentered Power Save mode (meaning there is no signalactivity or user input for 10 seconds).4. The radio software has detected that the current WXchannel signal level has dropped below a preset minimumlevel or is gone completely.Once these conditions have been met, the software will thenscan the WX channels looking for an active WX channel.When an active WX channel is found it will stop the scanand use the new WX channel to look for the standard1050Hz alert tone or SAME data depending on WX setup.Operating Your RadioWX Auto Search (SCAN)MRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 61
62 EnglishIntroductionStandby/Receive andTransmitSAME Alert Level CodesThere are four (4) alert level codes that provide importantactive weather information. These alert codes are checkedagainst the FIPS codes location list. When proper “Alert”conditions are met, the radio will switch to the WX Alertmode on the WX Alert channel and sound an alarm. NOTEWhen the alarm sounds, the display will show theAlert icon, SAME letter icons and SAME Alertletter/numbers flashing.Alert Level Codes: A1 = Warning – Those events that pose a significant threatto public safety and/or property. The probability ofoccurrence and location is high and the onset time isrelativity short.A2 = Watch – Events that meet the classification of Warning(above), but either the onset time, probability ofoccurrence or location is uncertain.A3 = Statement – A message containing follow upinformation to a Warning or Watch.A4 = Test – Brief Voice text of the weekly test describing theservice provided, area covered, and application of thewarning alarm tone and NWR SAME code. These testsnormally occur on Wednesday between 11 a.m. and 1 p.m. local time with some variations to accommodatelocal requirements.Operating Your RadioSAME Alert Level CodeMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:37 PM Page 62
Introduction63Nothing Comes Close to a Cobra®Advanced OperationAdvanced Operation •Channel 16/9 ModeChannel 16/9 mode gives you quick access to callingChannel 16 and Channel 9 from any operational mode.To Switch to Channel 16 or Channel 9:1. Press the Channel 16/9 button to change toChannel 16.2. Press the Channel 16/9 button again to change toChannel 9.3. Press the Channel 16/9 button a third time andreturn to the last used Standby channel.Operating Your RadioChannel 16/9 ButtonChannel 16 or Channel 9MRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 63
64 EnglishIntroduction Advanced OperationTri-Watch ModeTri-Watch mode gives you one (1) button access to scan atotal of three (3) channels of most importance to you.Channel 16 is preprogrammed for you and will always beone (1) of the scanned locations. Two (2) other channels ofyour choice can be stored in the radio. These channels canbe edited and/or recalled for future engagements of the Tri-Watch mode. Tri-Watch will function in Marine and GMRSStandby modes.NOTEThe radio must be squelched for Tri-Watch mode tofunction. See page 40 for Squelch procedure.To Program or Edit the Tri-Watch Locations:1. Press and hold the TRI-WATCH button for two (2)seconds to activate Tri-Watch Setup mode. The TRIand MEM icons on the display will turn On.NOTEThe main channel number will flash to indicate channelposition. If there is no input activity for 15 seconds, theradio will sound two (2) beeps and return to Marine orGMRS Standby mode.2. Press BAND button to select Marine or GMRS forthe first Tri-Watch programmable channel.3. Press Channel Up/Down button to select the desiredTri-Watch channel.4. Press and release TRI-WATCH button orCall/Enter/Setup button to confirm entry.5. Repeat steps 2 through 4 to select second Tri-Watch programmable channel. The radio willscan Marine Channel 16 plus two (2) other selectedchannels in Marine or GMRS bands.6. After programming both Tri-Watch memorychannels the radio will immediately engage Tri-Watch mode.Operating Your RadioTRI-WATCH ButtonTRI and MEM IconsChannel Up/Down ButtonMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 64
65Nothing Comes Close to a Cobra®Advanced OperationUsing Tri-WatchTri-Watch Scan Mode:1. From Marine or GMRS Standby mode, press theTRI-WATCH button. The TRI icon will appear on theLCD display and the radio will scan through thethree (3) Tri-Watch memory channels.2. A signal on any one (1) of the three (3) channelswill stop the scan for 10 seconds to allow you tolisten to the traffic on that location.NOTEAfter the Tri-Watch scan stops to monitor a channel,as long as you do not press any buttons within 10seconds, your radio will automatically resumescanning the Tri-Watch channels.3. Press the Channel Up/Down button to resumescanning the Tri-Watch channels or to change thescan direction.4. To EXIT the Tri-Watch scan, press the TRI-WATCHbutton again. The TRI icon will disappear from theLCD and the radio will return to Marine or GMRSStandby mode.Operating Your RadioTRI-WATCH ButtonTri-Watch Scan ModeMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 65
66 EnglishAdvanced OperationMemory LocationsYour radio has unlimited memory locations for storing yourmost frequently used channels. These memory locations canbe selected individually or can be scanned. (See page 69under Memory Location Scan.) You are also able to changebands for memory locations and scanning, allowing anunlimited amount of choice selection.To Program Memory Locations:1. Press and hold the MEM/ESC button for two (2)seconds. The Memory location number will startflashing and the MEM icon will be turned On.2. Use the Channel Up/Down button to advance to theMemory location (00-99) you want to program.3. Press the MEM/ESC button to select the Memorylocation. The Memory channel number will stopflashing and the channel number will start flashing.4. Use the Channel Up/Down button to change to thechannel you want to store into the selected Memorylocation.5. Press the MEM/ESC button to program that channel.The Memory location number will flash again.Repeat steps 2 through 5 to program as manyadditional memories as you want.6. Press and hold the MEM/ESC button for two (2)seconds. This will return the radio to the Memorymode.7. Press and release the MEM/ESC button again toreturn to the Marine or GMRS Standby mode.Operating Your RadioMEM/ESC ButtonMemory Location NumberChannel Up/Down ButtonChannel NumberMEM IconMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 66
67Nothing Comes Close to a Cobra®Advanced OperationTo Recall a Stored Memory Location:1. Press the MEM/ESC button. The MEM icon will beturned On.2. Press the Channel Up/Down button to select thememory location. If a memory location has beenprogrammed, its associated channel will display onthe LCD. Your radio is now in Marine or GMRSStandby mode on the selected memory location.NOTEIn addition to using the Channel Up/Down buttonwhen selecting your memory channel, you can usethe BAND button to select channels in the GMRSband.To Exit Memory Location Mode:Press the MEM/ESC button to return the radio to theMarine or GMRS Standby mode. The last channel usedin Marine or GMRS Standby mode will now bedisplayed on the LCD and the MEM icon will disappear.To Erase Stored Memory Locations:1. Press and hold the MEM/ESC button for two (2)seconds. The memory location number will startflashing and the MEM icon will be turned On.2. Use the Channel Up/Down button to advance to thememory location you want to erase.3. Press the MEM/ESC button to select the memorylocation. The memory channel number will stopflashing and the channel number will start flashing.4. Use the Channel Up/Down button to change to thechannel to read “00” at the selected memorylocation.5. Press the MEM/ESC button to erase that channel.Repeat steps 2 through 5 to erase as many additionalmemories as you want.6. Press and hold the MEM/ESC button for two (2)seconds. This will return the radio to Memory mode.7. Press and release the MEM/ESC button again toreturn to Marine or GMRS Standby mode. Operating Your RadioMEM/ESC ButtonMemory Location NumberChannel Up/Down ButtonChannel NumberMEM IconMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 67
68 EnglishAdvanced OperationChannel Scan ModeDuring Channel Scan mode, the radio will rapidly switchfrom channel to channel through all the channels. Wheneverany activity is detected, the radio will stop the scan for 10seconds to allow you to listen briefly on that channel. Theradio will then continue to scan unless you switch out of theChannel Scan mode. The radio will perform normalscanning operations from either Marine (VHF) mode orGMRS mode, but it will only scan in that band.NOTEThe radio must be squelched for the Channel Scanmode to function. See page 40 for Squelchprocedure.To Enter Channel Scan:1. From Marine or GMRS Standby mode, press theSCAN button. The radio will immediately begin toscan the entire channel map selected in the activechannel map. The SCAN icon will show on the LCD.2. A signal on any channel will stop the scan for 10seconds to allow you to listen to the traffic on thatlocation.NOTEAfter the channel scan stops to monitor a channel, aslong as you do not press any buttons within 10seconds, your radio will automatically resumescanning the Channel Scan channels.3. Press the Channel Up/Down button to resumescanning the Channel Scan channels or to changethe scan direction.4. To EXIT Channel Scan mode, press the SCANbutton again. The SCAN icon will disappear from theLCD and the radio will return to Marine or GMRSStandby mode.Operating Your RadioSCAN ButtonSCAN IconScanningChannel Up/Down ButtonMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 68
69Nothing Comes Close to a Cobra®Advanced OperationMemory Location ScanDuring Memory Location Scan mode, the radio will rapidlyscan through all pre-assigned memory channels. Wheneverany activity is detected on a channel, the radio will stop thescan for 10 seconds to allow you to listen briefly on thatchannel. It will then continue to scan unless you switch outof Memory Location Scan mode.NOTEThe radio must be squelched for the MemoryLocation Scan mode to function. See page 40 forSquelch procedure.NOTEIf there are fewer than two (2) Memory locationsprogrammed in the radio, the Memory location scanoption will not be available. To program at least two(2) memory locations, see page 66.To Enter Memory Location Scan:1. From Marine or GMRS Standby mode, press theMEM/ESC button. 2. Press the SCAN button. The radio will immediatelybegin to scan all pre-assigned memory channels.The SCAN and MEM icons will show on the LCD. 3. A signal on any channel will stop the scan for 10seconds to allow you to listen to the traffic on thatlocation.NOTEAfter the Memory Location Scan stops to monitor achannel, as long as you do not press any buttons within10 seconds, your radio will automatically resumescanning the Memory Location Scan channels.4. Press the Channel Up/Down button to resumescanning the Memory Location Scan channels or tochange the scan direction.5. To EXIT Memory Location Scan mode, press theSCAN button again. The SCAN and MEM icons willdisappear from the LCD and the radio will return toMarine or GMRS Standby mode.AAMemory Location ScanMEM/ESC ButtonSCAN ButtonOperating Your RadioMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 69
70 EnglishAdvanced OperationRewind-Say-Again™ FeatureUse the Cobra exclusive Rewind-Say-Again™ feature toreplay or record the last 20 seconds of an incoming audiotransmission.Example 1:When engine noise, music or conversation creates toomuch noise to hear an inbound message clearly, pressthe REW button to hear the message a second time.Example 2:When listening to an urgent distress message of anexcited caller with confusing background noise, pressthe REW button to hear the message a second timeand get life saving information. Use this feature torecord call details including position coordinates, callsigns, registration numbers and store details that willhelp authorities locate the distressed vessel.NOTEHold in the Rewind button to turn the recordingmode Off and save the currently recordedtransmission.Using Rewind-Say-Again™ 1. During audio transmission, press REW button to listen to20 seconds of the last recorded audio transmission. TheREW icon will flash during the playing back of themessage and a 20-second countdown begins.2. Press the TALK, REW or MEM/ESC button duringplayback to stop the playback transmission. The radioreturns to Marine or GMRS Standby mode.Rewind-Say-Again™Rewind ButtonOperating Your RadioMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 70
71Nothing Comes Close to a Cobra®Advanced OperationUsing Rewind-Say-Again™ to Record AudioTransmission1. Press and hold SCAN button for two (2) seconds to enterRecord mode.2. Press and hold Talk button to begin recording from radiomicrophone. If Talk button is released, recording stops. While recording, a 20-second countdown begins ondisplay. When 20-second countdown time has ended,recording stops and two (2) beep tones will be heard.3. Press and hold the SCAN button again for two (2)seconds or press MEM/ESC button to cancel recordingand return to last operation.NOTEWhen using radio in Record mode, the REW featureis turned Off to prevent “recording over” previousmessage.SCAN Button Enter RecordRewind Countdown TimerOperating Your RadioMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 71
72 EnglishIntroductionNo display on LCD whenradio is turned OnBattery pack is exhausted Recharge or replace battery packWill transmit at 1 watt, but not at5 wattsBattery pack lowSelected channel is imitedto 1 wattRecharge or replace battery packSwitch to another channelWill not transmit Selected channel islimited to receive onlySwitch to another channelNo sound from speaker Volume level is too low orsquelch level is too deepRe-adjust volume and squelchNo response to button pressKey lock is On Press Backlight/Key Lock buttonNo answer to calls Out of range of other stationSignal is blocked by terrainSwitch to 3 or 5 watts ormove closerMove until you have a “line-of-sight” to the other stationProblem Possible Cause(s) Solution(s)Maintenance and TroubleshootingOperating Your RadioMaintenance •Very little maintenance is required to keep your CobraMarine VHF/GMRS radio in good operating condition:Keep the radio and charger clean by wiping with a soft cloth and milddetergent. Do not use solvents or harsh or abrasive cleaners, which coulddamage the case or scratch the LCD screen.If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a dayto prevent buildup of salt deposits, which could interfere with button operation. If the radio will be stored for a long period, such as over the winter, remove the batteries from the battery tray and store them in a separate package. This is especially important if you are using alkaline batteries.Troubleshooting •MRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 72
Introduction73Nothing Comes Close to a Cobra®SpecificationsSpecifications •GeneralNumber of Channels All U.S., Canadian, and International 10 NOAA Weather Channels, 23 GMRSChannelsChannel Spacing VHF - 25 kHz Max., GMRS - 12.5 kHzModulation VHF - 5 kHz Max., GMRS - 2.5 kHzInput Voltage 7.2 VDCBattery Life: Lithium-ion: 14 hrs @ 5 watts,5% TX, 5% RX, 90% Stand-by 23.5 hrs @ 1 watt;Alkaline: 20 hrs @ 5 watts, 35 hrs @ 1 wattCurrent Drain: Stand-by 40 mAReceive 200 mATransmit 1.8 A @ High power 700 mA @ Low PowerTemperature Range -20˚C to 50˚CRadio Dimensions 4.8 in. x 2.4 in. x 1.4 in. (123 mm x 62 mm x 36 mm) not includingantennaRadio Weight 0 lbs 8 oz. (228 g) without batteriesReceiverFrequency Range VHF 156.050 to 163.275 MHzGMRS 462.5500 to 467.7125 MHzReceiver Type Double Conversion Super-HeterodyneSensitivity: 20 dB Quieting 0.35 uV12 dB Sinad 0.30 uVAdjacent Channel Selectivity -60 dBIntermodulation and Rejection -60 dBSpurious and Image Rejection -60 dBAF Output 250 mW @ 8 OhmsTransmitterFrequency Range: TX VHF 156.025 to 157.425 MHzGMRS 462.5500 to 467.7125 MHzRF Output Power 1, 3 and 5 wattsSpurious Emissions -60 dB @ High Power, -55 dB @ Low PowerMicrophone Type CondenserFrequency Stability +/-10 ppmFM Hum and Noise 40 dBOperating Your RadioMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 73
74 EnglishIntroductionWarranty and TrademarkAcknowledgementLimited 3-Year Warranty •For Products Purchased In The U.S.A.Cobra Electronics Corporation warrants that its CobraMarine VHF/GMRS radio,and the component parts thereof, will be free of defects in workmanship andmaterials for a period of three (3) years from the date of first consumer purchase.This warranty may be enforced by the first consumer purchaser, provided that theproduct is utilized within the U.S.A. Cobra will, without charge, repair or replace, at its option, defective radios, products or component parts upon delivery to the Cobra Factory Servicedepartment, accompanied by proof of the date of first consumer purchase, such as a duplicated copy of a sales receipt. You must pay any initial shipping charges required to ship the product for warranty service, but the return charges will be at Cobra’s expense, if the product is repaired or replaced under warranty. This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.Exclusions: This limited warranty does not apply:1. To any product damaged by accident.2. In the event of misuse or abuse of the product, or as a result of unauthorized alterations or repairs.3. If the serial number has been altered, defaced, or removed.4. If the owner of the product resides outside the U.S.A.All implied warranties, including warranties of merchantability and fitness for aparticular purpose are limited in duration to the length of this warranty. Cobra shall not be liable for any incidental, consequential or other damages; including,without limitation, damages resulting from loss of use or cost of installation. Some states do not allow limitations on how long an implied warranty lasts and/ordo not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you.For Products Purchased Outside The U.S.A.Please contact your local dealer for warranty information.Trademark Acknowledgement •Cobra®, CobraMarine®, Nothing Comes Close to a Cobra®, VibrAlert®and the snakedesign are registered trademarks of Cobra Electronics Corporation, USA.Cobra Electronics Corporation™ and Rewind-Say-Again™ are trademarks of CobraElectronics Corporation, USA.Warranty and TrademarkMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 74
Introduction75Nothing Comes Close to a Cobra®Product ServiceProduct Service •If you have any questions about operation or installing your new CobraMarine VHF/GMRS product or if you are missingparts…Please call Cobra first! DO NOT RETURN THIS PRODUCT TO THE STORE! See customer assistance on page A1.If your product should require factory service, please call Cobra first beforesending your radio. This will ensure the fastest turn-around time on your repair.You may be asked to send your radio to the Cobra factory. It will be necessary tofurnish the following to have the product serviced and returned:1. For warranty repair, include some form of proof-of-purchase, such as aphotocopy of a sales receipt. If you send the original receipt, it cannot bereturned.2. Send the entire product.3. Enclose a description of what is happening with the radio. Include a typed or clearly printed name and address of where the radio is to be returned.4. Pack radio securely to prevent damage in transit. If possible, use the original packing material.5. Ship prepaid and insured by way of a traceable carrier such as United ParcelService (UPS) or Priority Mail to avoid loss in transit to: Cobra Factory Service,Cobra Electronics Corporation, 6500 West Cortland Street, Chicago, Illinois60707 U.S.A.6. If the radio is in warranty, upon receipt of your radio, it will either be repaired or exchanged depending on the model. Please allow approximately three (3) to four (4) weeks before contacting Cobra for status. If the radio is out ofwarranty, a letter will automatically be sent informing you of the repair charge or replacement charge.7. If your radio is returned for factory repair, it will be returned to you withdefault settings restored.If you have any questions, please call 773-889-3087 for assistance.Customer ServiceMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 75
76 EnglishIntroduction AccessoriesCustomer ServiceAccessories •Additional accessories for your Cobra radio can be purchased separately. Eachaccessory will enhance the use of the radio and also offer convenience to the enduser.Lapel Speaker MicrophoneA speaker microphone, that attaches to your lapel, byordering P/N CM 330-001.This unique accessory allows you to wear the radio whilestill being able to communicate with other vessels. Asmall Push to Talk button on the lapel speaker/microphone allows you to answer any incoming call.Lapel Speaker MicrophoneMRHH425VP-Body-Eng.qxp:400_Body 10/26/06 1:38 PM Page 76

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