Cobra Electronics MRF77 VHF Marine Radio User Manual MRF77W B GPS MANL v C
Cobra Electronics Corporation VHF Marine Radio MRF77W B GPS MANL v C
Contents
- 1. User Manual I Part 1
- 2. User Manual I Part 2
- 3. User Manual II Part 1
- 4. User Manual II Part 2
User Manual II Part 2

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The ability to send your position to another station is an added feature of DSC radios that have 
GPS attached. It is handy for rendezvous and rescue situations.
Your CobraMarine VHF radio allows you to choose whether to have the radio automatically 
respond to all Position Requests it receives or to alert you to a Position Request and allow 
you to choose whether to respond or not — manual reply.
    To Set The Position Request Reply Type:
    1.  Enter the DSC SETUP MENU menu and scroll to 
      POSITION REPLY with the Up/Down soft keys or the  
      UP/Down channel buttons.
    2.  Press the ENTR soft key and observe the current    
      highlighted  setting — AUTO or MANUAL.
    3.  Use the Up/Down soft keys or the Up/Down channel  
      buttons to change the setting.
    4.  Press the ENTR soft key to select the setting and return  
      to the DSC SETUP MENU.
 The ability of your radio to automatically switch to the requested channel when receiving 
an Individual Call. In some cases, automatically switching channels may not be wanted, 
especially if the radio is being used for Bridge to Bridge communications in a busy port 
or waterway.
Your CobraMarine VHF radio allows you to choose whether to have the radio automatically 
Change channels to the requested channel in an Individual Call or not. 
     To Set The Automatic Channel Switch On or Off:
    1.  Enter the DSC SETUP MENU menu and scroll to AUTO   
      CHANNL SWITCH (Automatic Channel Switch) with the Up/ 
      Down soft keys or the UP/Down channel buttons.
    2.  Press the ENTR soft key and observe the current highlighted   
      setting — ON or OFF.
    3.  Use the Up/Down soft keys or the Up/Down channel buttons  
      to change the setting.
    4.  Press the ENTR soft key to select the setting and return to  
      the DSC SETUP MENU.
The Individual Call Reply feature is used when receiving Individual DSC calls. When receiving a 
Individual DSC Call, you may not want the radio to reply to the call automatically. This features 
allows you to disable the automatic reply. The ability to send your position to another station 
is an added feature of DSC radios that have GPS attached. It is handy for rendezvous and 
rescue situations.   
    To Set The Individual Reply Auto or Manual:
    1.  Enter the DSC SETUP MENU menu and scroll to 
      INDIVID CALL REPLY (Individual Call Reply) with the  
      Up/Down soft keys or the UP/Down channel buttons.
    2.  Press the ENTR soft key and observe the current    
      highlighted  setting — AUTO or MANUAL.
    3.  Use the Up/Down soft keys or the Up/Down channel   
      buttons to change the setting.
    4.  Press the ENTR soft key to select the setting and return  
      to the DSC SETUP MENU.
 The Manual position entry feature allow you to enter the time (UTC time), Latitude and 
Longitude.  
     To Enter the Time, Latitude, and Longitude:
    1.  Enter the DSC SETUP MENU menu and scroll to MANUAL ENTRY  
      with the Up/Down soft keys or the UP/Down channel buttons.
    2.  The cursor will begin to blink at the rst number of the   
    UTC time entry.
3.  Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the  
  number list.
4. 
Press the ENTR soft key to select a number. This will also move the blinking cursor to the  
  next number under UTC Time.
5.  Repeat steps 5 and 6 to enter additional numbers.
6.  After entering the UTC time, press the ENTR soft key to move the blinking cursor to the  
  rst number under LAT (Latitude).
7.  Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the  
  number list.
8.  Press the ENTR soft key to select the rst number and move the cursor to the next  
  number under LAT.
9.  Repeat steps 9 and 10 until the seventh (7) digit of the LAT is entered.
10. 
After entering the LAT (Latitude), press the ENTR soft key to move the blinking cursor to the  
  rst number under LON (Longitude).
11.  Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the  
  number list.
12.  Press the ENTR soft key to select the rst number and move the cursor to the next  
  number under LON.
13. 
Repeat steps 9 and 10 until the eighth (8) digit of the LON is entered.
14. 
Press the ENTR button to save the entry and the radio will return to the DSC SETUP MENU.
MENU EXIT: You can exit the menu at any time by pressing the EXIT soft key on any screen. This 
method will exit to the next highest menu, repeated presses of the EXIT soft key will return the 
radio to the radio standby mode. The menu EXIT selection in the menu screen will return the radio 
immediately to the radio standby mode. When in the menu, just scroll down until the EXIT option is 
highlighted, then press the ENTR soft key. 

Advanced Operation 
Cobra® has incorporated several features in your CobraMarine VHF radio to give you quick 
access to the voice calling channels and to let you monitor more than one (1) channel at 
once.
When NOAA broadcasts a Weather Alert Signal and your radio is in the Weather Alert mode, 
you will hear a continuous audible tone and the radio will automatically switch to Weather 
Radio mode. The alert indicators will sound regardless of what channel you are operating on 
as soon as a NOAA alert signal is received.
  When You Hear The Alert:
 1.  Press any key to turn Off the alert alarm and LCD indicator.
 This function gives you quick access to calling Channel 16 or Channel 9 from any 
operational mode.
     To Switch To Channel 16 Or Channel 9:
    1.  Press the Channel 16+ button to change to Channel 16 from  
      any channel.
    2.  Press the Channel 16+ button again to change to Channel 9.
    Additional presses of the Channel 16+ button will toggle back to  
    the original channel and between channels 16 and 9.
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Tri-Watch gives you one (1) soft key access to scan the three (3) channels of most importance 
to you. Channel 16 and Channel 9 will always be included as scanned channels. The 
remaining channel will be the VHF channel in effect when you enter Tri-Watch mode.
NOTE  
The radio must be squelched for tri-watch to function. See page 26 for  
squelch procedure.
    To Enter Tri-Watch Mode:
    1.  In Standby mode, use the Up/Down buttons to go to the  
      channel you want to add as the third location to be scanned.
    2.  Press the Tri-Watch soft key.
    Tri-watch will be indicated on the LCD and the radio will scan  
    between Channel 16, Channel 9, and the third tri-watch channel  
    you selected. A signal on any one (1) of the three (3) channels  
    will stop the scan to allow you to listen to the trafc on the  
    channel. The channel number will be displayed on the LCD.
    To Exit Tri-Watch Mode:
    1.  Press the Tri-Watch soft key. The radio will return to  
      Standby mode
    During Tri-Watch (while receiving an incoming transmission),  
    You Can Choose From The Following: 
    a.  Press the Talk button to remain on that tri-watch channel and  
      return to Standby mode.
    If you do not press any buttons, your radio will automatically  
    resume scanning tri-watch channels when the incoming  
    transmission is complete.
    During Tri-Watch (while not receiving a transmission): 
    a.  Press the Talk button to communicate on the last tri-watch  
      channel scanned and return to Standby mode.
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You can program (or tag) any or all channels to be scanned in the Memory  
Scan mode.
    To Program Memory Channels:
    1.  From Standby mode, select a channel to be tagged using 
the Up/Down buttons. 
    2. Press the MORE soft key (if necessary), then the MEM  
      soft key. The channel will be tagged for scanning and  
      MEM (memory channel) will appear on the LCD whenever  
      that channel is selected.
      Repeat steps 1 through 2 to add addition memory  
      channels.
     To Clear Memory Channels:
    1.  From Standby mode, select a channel to be cleared  
from a memory tagging using the Up/Down buttons. 
    2.  Press and hold the MORE soft key (if necessary), then 
the MEM soft key. The channel will be untagged and 
MEM (memory channel) will no longer appear on the LCD 
whenever that channel is selected.
      Repeat steps 1 through 2 to clear additional channels  
      from memory locations.
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     During Memory Scan, the radio will rapidly switch from 
tagged channel to tagged channel. Whenever any activity is 
detected, the radio will stop the scan  to allow you to listen 
to the activity on that channel. The radio will then continue 
to scan after 2 seconds of inactivity, unless you switch out of 
the Memory Scan mode.
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     NOTE  
If there are fewer than two (2) channels tagged,  
the Memory Scan mode will not be available.  
[See page 47 under program memory channels  
to tag at least two (2) channels.]
    NOTE 
     The radio must be squelched for the Memory Scan mode 
to function. See page 26 for squelch procedure.
    To Enter Memory Scan:
    1. From Standby mode, press the MORE soft key (if  
      necessary), then the SCAN soft key.
     The radio will immediately begin to scan the channels you 
tagged. SCAN (memory scan) will be highlighted on the LCD. 
    To Exit Memory Scan:
    1.  From Memory Scan mode, press the SCAN soft key.
     This will return the radio to Standby mode on the last 
scanned memory location.
     During Memory Scan (while receiving an incoming 
transmission), You Can Choose From The Following:
    a.  Press the Talk button to remain on that memory  
location and end scanning. This will return the radio  
to Standby mode. 
The radio will then continue to scan after 2 seconds of 
inactivity, unless you switch out of the Memory Scan 
mode.
       During Memory Scan (while not receiving a 
transmission):
     b.  Press the Talk button to communicate on the last  
channel scanned and return to Standby mode.
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Use the Public Address (PA) mode of voice transmission to communicate to other 
nearby vessels or people. This feature requires a mounted and connected optional PA 
speaker.
    To Broadcast on the PA Speaker:
    1. Press the PA soft key.
    2. Press the Talk button on the microphone and speak into  
      the microphone.
         NOTE  
While in the PA mode:
    Q  When the Talk button is pressed, the output is  
directed to the PA speaker and not transmitted  
as a radio signal through the antenna.
    Q  Received radio messages will not be heard while the PA 
mode is active.
    3. To turn off PA, press PA soft key again.
Cobra’s Burp feature allows the operator to expel water from inside the speaker 
grill. This is especially useful if the radio is Sprayed or during extreme foul weather 
conditions. In these conditions, water can become trapped in the speaker grill and 
mufe the audio.
    To Activate Burp:
    1. Press the BURP soft key.
    2. The Burp tone(s) at maximum level will sound from the  
      internal speaker for ve seconds.
    3. During this time, the matrix will display EXCUSE ME !.
    4. After a 5-second interval, the radio will return to standby
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The radio has a Cobra exclusive playback feature, Rewind-Say-Again®. This feature allows 
you to replay the last 20 seconds of an incoming audio transmission. It also allows you to 
record call details including position coordinates, call signs, registration numbers and store 
details that will help authorities locate a distressed vessel.
Example 1:
When engine noise, music or conversation creates too much noise to hear an inbound 
message clearly, press the Rewind-Say-Again® button to enter the Rewind-Say-Again® 
menu to be able to hear the message a second time. This feature eliminates asking the 
sender to repeat the message.
Example 2:
When listening to an urgent distress of an excited caller with confusing background noise, 
press the Rewind-Say-Again® button to enter the Rewind-Say-Again® menu to be able to 
hear the message a second time and get lifesaving information.
    Operation of Rewind-Say-Again®
    1.  Press the Rewind button after the last inbound audio 
      transmission.
    2.  Using the Up/Down soft keys or the channel Up/Down  
      buttons scroll to the PLAY RECORDING menu option.
    3.  Press the ENTR key to hear the recording.
    4. The radio automatically replays the last 20 seconds of the  
      previous audio transmission.
    5.
 Respond to the caller normally, after the message is replayed.
    Setup and Advanced Operation of Rewind-Say-Again
®
Operation of Rewind-Say-Again®:
    1.  Press the Rewind button.
      a. OFF: EXIT REWIND - When highlighted and the ENTR key is  
        pressed, exits the Rewind features and when the Rewind  
        button is pressed again, the screen above will be displayed.
      b. PAUSE RECORDING - Pause recording of incoming  
        audio transmissions.
c. PLAYBACK RECORDING - Playback recorded incoming audio.
      d. SAVE RECORDING - Saves recorded incoming audio.
      e. ERASE RECORDING - Erases the saved recording.
      f.  RECORD MESSAGE - Record a message (using the  
        microphone to record the message, using the PTT key  
        to start and stop the recording).
      g. PLAYBACK MESSAGE - Playback the recorded message.
      h. SAVE MESSAGE - Save the recorded message.
      i.  ERASE MESSAGE - Erases the saved message.
      j.  TRANSMIT MESSAGE - Transmit the recorded message.

     Abort The Distress Call Process:
    If the Distress button is pressed by mistake: 
    a. Press the EXIT soft key to return to Standby mode.
    The Distress alarm sounds to conrm that the message is  
    transmitted. At the end of the transmission, the radio   
    maintains a watch on Channel 16 and Channel 70 for an  
    acknowledgement. Press any button to turn Off the alarm.
      Q   If an acknowledgement is received, the Distress alarm 
sounds again and the responding party’s MMSI number 
displays on the LCD.
       Q If no acknowledgement is received, the radio resends 
        the message at approximately four (4) minute intervals 
        until an acknowledgement is received or the Distress  
        call is aborted.
 Cancelling a Distress Call
 At anytime Before receiving a Distress Call Acknowledgement,  
  the Distress can be canceled.
    1. 
From the WAIT FOR ACK screen, press the CANC soft key.
2. From the DISTRESS CANCEL screen, conrm cancelling  
      the Distress Call by pressing the YES soft key.
    3. After the Distress Call Cancel message has been sent,  
      press the CONT key.
    4. After the Distress Cancel has been sent, your are required  
      to follow-up with a VOICE CANCEL containing the  
      following information:
      “ALL STATIONS” SAY 3 TIMES
      “This is (SHIP NAME), (CALL SIGN), (SHIP MMSI #),
      (POSITION)” CANCEL MY DISTRESS ALERT OF “(DATE,  
      UTC TIME)”
    5. After completing the VOICE CANCEL procedure, press the  
      DONE soft key to return to the radio idle screen.
Digital Select Calling (DSC) Operation  
The Send menu displays when the Distress button is pressed.
    NOTE  
    This radio follows Class-D DSC protocol with a dedicated Channel 70 receiver.
Sending and receiving distress calls and acknowledgements on Channel 70 can be a 
lifesaver for mariners.
NOTE 
 The DSC call:
    QSound the distress alarm at all receiving stations.
    Q Inform receiving stations of your identity (MMSI).
    Q Informs receiving stations of the nature of the emergency.
Q Informs receiving stations of sending position when a GPS device is connected 
or a position is manually entered. DSC operation does not provide receiving 
stations with information like number of persons aboard or injuries. This 
specic information must be communicated by voice on Channel 16 to the 
station that acknowledges a DSC Distress call.
    To Send a DSC Distress Call:
    1. From Standby mode, pull down the spring-loaded red  
      door on the transceiver and press the Distress button.   
      You will have three (3) choices:
      Q   Send a distress call automatically, with your position, 
if you are connected to a GPS. Or send the call, without 
your position, if not connected to a GPS.
       Q  
Include a Nature of Distress message with the distress call.
       Q   Cancel the distress call process and return to  
Standby mode.
    2. Choose one of the following: 
    Send an Automatic Distress Call: 
      a. Press and hold the Distress button.
    Include a Nature of Distress Message with Distress Call: 
      a. Press and release the Distress button.
      b. Press the Up/Down soft keys or the Channel Up/ 
        Down buttons to manually select from the list of  
        pre-programmed Nature of Distress calls —    
        UNDESIGNATED, FIRE, FLOODING, COLLISION,    
        GROUNDING, more.
      c. Press and hold the Distress button for three (3)  
        seconds to transmit the distress signal.

When a vessel is within range of a DSC Distress call, the radio receives the call, 
sounds the Distress alarm, and switches to Channel 16. All DSC calls that are received 
will sound one (1) alert alarm. See pages 10-13 for descriptions of the different 
alarms. Press any button to turn Off the alarm. The received call information continues 
to display on the LCD.
    When A Distress Call Is Received:
    1. Press any button to turn Off the alarm.
    2. Read and write down the distress information that  
      displays on the LCD (position data may or may not be 
      shown); then determine whether to answer the call.
    3. Respond, if appropriate, by pressing and holding the Talk  
      button to transmit on Channel 16.
    4. 
The received information is placed into the Call Log.  
      See page 62 for more information on viewing the Call  
      Waiting Log.
    5. 
If MMSI (Maritime Mobile Service Identify) matches a  
      contact from the Individual Directory entry stored in your 
      radio, the name identication displays and the alarm  
sounds to identify the Name of the matching MMSI member.
    6. Press ESC after viewing the display to return to normal  
      Standby mode.
     NOTE 
The radio automatically switches to Channel 16 upon 
receiving a DSC Distress call and the alarm will sound for 
approximately two (2) minutes. Press any button to clear 
the Distress alarm instantly.
This radio cannot send Distress Relay calls. Only large ships and shore stations, with 
specially equipped radios, can send Distress Relay calls.
This radio does respond to a Distress Relay call just as it responds to a Distress call.
Use the DSC All Ships call for the same urgency and safety purposes as the Pan and 
Securite voice calls as well as sending Routine messages to all stations at once. 
The DSC All Ships call reaches all stations in radio range. Use the DSC All Ships call 
for urgent, but not life-threatening situations or to broadcast a safety warning to all 
vessels in the area. 
    To Send An All Ships Call:
    1. Press the CALL soft key and scroll to ALL SHIPS  
      CALL with the UP/Down soft keys or the channel Up/ 
      Down buttons.
    2. Select either SAFETY or URGENCY and press the ENTR  
      soft key.
    3. Using the Up/Down soft keys or the channel Up/Down  
      buttons, select the voice channel all radios will tune to  
      after the All Ships message is sent and press the ENTR  
      key.
    4. Press the ENTR soft key to send the All Ships Call.
    5. The radio will tune to the voice channel previously  
      selected.
    6. Press the EXIT soft key to exit the All Ships Call mode  
      and return the radio to the idle screen.

All Ships calls received from stations within range of the radio sound the Distress 
alarm and switch the radio to Channel 16.
When An All Ships Call Is Heard:
1.   Press any button to turn Off the alarm.
2.  Read and write down the MMSI of the vessel sending  
the call as well as the date and time of the call.
3.  Listen to the incoming voice message on the channel the 
radio selects for the incoming All Ships call.
This radio does not send Geographical calls. Only large ships and shore stations with 
specially equipped radios send Geographical calls.
Use the DSC Individual call feature to request communication with one (1) exclusive 
station. The DSC Individual call does not alert all other stations within range.
 To Send An Individual Call:
1. Press the CALL soft key and scroll to INDIVIDUAL  
  CALL with the UP/Down soft keys or the channel Up/ 
      Down buttons and press the ENTR soft key.
    2. Using the Up/Down soft keys or the channel Up/Down  
      buttons to highlight a previously entered directory entry  
      or use the MANUAL entry option.
    3. Press the ENTR key.
    4. Using the Up/Down soft keys or the channel Up/Down  
  buttons, select the voice channel all radios will tune to  
  after the Individual Call message is sent and press the  
 ENTR key.
5. Press the ENTR soft key to send the Individual Call.
6. The radio will tune to the voice channel previously  
  selected.
7. Press the EXIT soft key to exit the Individual Call mode  
  and return the radio to the idle screen.
Q  If the radio called sends back an automatic DSC response  
  “able to comply,” the individual alarm will sound. Wait for  
  a voice message from the called station.
_    Q  If an “unable to comply” response or no reply is received,  
      the radio display asks to resend the message or exit the  
      menu. At the Unavailable menu, Press REPT or EXIT soft  
  keys.
_    Q  If REPT is selected, the radio restarts the individual call.
    Q  If EXIT is selected, the radio will return to the Call Menu.
_

     When another station makes an Individual call to your radio:
Q  The Individual alarm sounds.
_    Q  The caller is identied on the LCD.
    Q  If Automatic Channel Switch is on, the radio switches to  
      the channel selected by the caller.
    Q  Call information is placed in the Call Log.
     To Receive An Individual Call:
    Press the Talk button and greet the caller.
 Sending a Group call is like sending an Individual call, but the group MMSI information 
is used and the resend and DSC responses do not apply. See pg. 41 for creating and 
entering a group MMSI.
     To Send A Group Call:
    1. Press the CALL soft key and scroll to GROUP CALL  
      with the Up/Down soft keys or the channel Up/Down  
      buttons and press the ENTR soft key.
    2. Using the Up/Down soft keys or the channel Up/Down  
      buttons to highlight a previously entered directory entry  
      or use the MANUAL entry option.
    3. Press the ENTR key.
    4. Using the Up/Down soft keys or the channel Up/Down  
      buttons, select the voice channel all radios will tune to  
      after the Group Call message is sent and press the  
      ENTR key.
    5. Press the ENTR soft key to send the Group Call.
    6. 
The radio will tune to the voice channel previously selected.
    7. Press the EXIT soft key to exit the Group Call mode and  
      return the radio to the idle screen.
    Q All radios switch to the channel selected in step 1. Press  
      and hold the Talk button to send a voice message to  
      everyone in the group.
  Q Anyone in the group can transmit on the channel.
When another station makes a Group call to the radio, the Individual alarm sounds, 
the caller is identied on the LCD, call information is placed in the Call Log, and the 
radio is switched to the channel selected by the caller, similar to an Individual call. 
Press any button to turn Off the alarm.
     To Receive A Group Call:
    1.  Listen for the group voice message.
    2.  Press the Talk button and respond  
only if appropriate.
Position Request mode enables a DSC radio to obtain the position (latitude and 
longitude) of a station that has a GPS device connected to the DSC radio at that 
station. In most cases, a reply will be forthcoming. If for some reason, your request is 
not acknowledged in ve (5) minutes, the user will be prompted to Resend the request 
or exit the menu.
    To Request The Position Of Another Station:
    1. Press the CALL soft key and scroll to POSITION  
      REQUEST with the Up/Down soft keys or the channel  
      Up/Down buttons and press the ENTR soft key.
    2. Using the Up/Down soft keys or the channel Up/Down  
      buttons to highlight a previously entered directory entry  
      or use the MANUAL entry option.
    3. Press the ENTR key.
    4. Press the ENTR soft key to send the Position Request  
      Call.
    5. The radio will show the WAITING FOR ACK screen  
      while waiting for the acknowledgement from the called  
      radio. And will show the ACKNOWLEDGED screen after  
      the called radio responds.

    6. After the called radio acknowledges the call, use the  
      Down soft key to view the called radios current position.
    7. Press the EXIT soft key to exit the Position Request mode  
      and return the radio to the Call Menu.
       NOTE  
Your radio will send the Position Request and there  
will be one (1) of three (3) possible responses:
      Q You will receive the position.
      Q  You will receive a no position data response,  
meaning the station you queried is not connected  
to a GPS device and cannot send its position.
      Q  You will receive a no reply response, meaning the 
operator of that station has chosen not to reply  
to your request.
          If You Receive A Position:
           The requested position with the station name  
and MMSI will show on your screen.
          Press the Enter button to return to Standby  
          mode after you have noted the station’s position.
         NOTE  
If the radio is connected properly to your chartplotter, 
you will see the requested position of the other vessel 
indicated on the display. 
 continued
When you went through the DSC set-up process, you set a position request reply type. 
(See page 42 to change your setting.) Depending on the setting you chose, when a 
Position Request message is received, your radio will enter either:
Q The Auto Reply mode.
Q The Manual Reply mode.
    When The Radio Is In Auto Reply Mode: 
     A position request will sound the Position Request alarm and 
show the name of the requesting station on the LCD. Your radio 
will automatically respond. It will send your position, if you have 
a GPS device connected to your radio, or NO POS. DATA (no 
position data), if you do not have a GPS device connected.
    Press any button to silence the alarm and exit the display.
    When The Radio Is In The Manual Reply Mode: 
     A position request message will sound the Position  
Request alarm and show the name of the requesting  
station. You can choose to:
    Q  Reply and send your position.
    Q Exit without sending your position.
    If You Choose to Reply with Your Position: 
     1. Press the ENTR soft key.
    If You Choose Not to Reply with Your Position:  
    2. Press the EXIT soft key. 

 Position Send uses your connected GPS in similar fashion to the Position Request 
function, except that you initiate the activity to let another station know where you are.
    To Send A Position Send Message:
    1. Press the CALL soft key and scroll to POSITION  
      SEND with the Up/Down soft keys or the channel Up/ 
      Down buttons and press the ENTR soft key.
    2. Using the Up/Down soft keys or the channel Up/Down  
      buttons to highlight a previously entered directory entry  
      or use the MANUAL entry option.
    3. Press the ENTR key.
    4. Press the ENTR soft key to send the Position SEND Call.
    5. Press the EXIT soft key to exit the Position Send mode  
      and return the radio to the Call Menu.
   When another station sends you its position in Position Send mode, the Individual 
Alarm will sound and the station’s name and position will be shown  
on the LCD. Press any button to turn Off the alarm and return to Standby mode.

Call Waiting functions similarly to the Caller ID function on your telephone. It will 
capture the caller’s MMSI identication number and any other data included in a DSC 
message.
NOTE 
Each Call Log memory can hold up to 20 messages. Once the memory becomes 
full, each new call will erase the oldest call information on a rst-in, rst-out 
basis.
NOTE 
The Envelope Icon will be displayed when calls are received and placed into any 
of the call logs.
Q  The envelope Icon will be shown closed to indicate  
unread messages.
Q  The envelope Icon will be shown open to indicate that all  
messages have been read.
 To Review Call Log Messages Received  
While In DSC Standby Mode:
1. Press the CALL soft key and scroll to CALL WAITING  
  with the Up/Down soft keys or the channel Up/Down  
  buttons and press the ENTR soft key.
2. Using the Up/Down soft keys or the channel Up/Down  
  buttons to highlight DISTRESS LOG or RECEIVED CALLS  
  logs.
3. Press the ENTR key.
4. Using the Up/Down soft keys or the channel Up/Down  
  buttons to highlight a log entry.
5. Press the ENTR key to view the log entry.
6. Press the EXIT soft key to exit the Position Send mode  
  and return the radio to the DSC CALL LOGS Menu.
To Delete Call Log Information:
1. Press the CALL soft key and scroll to CALL WAITING  
  with the Up/Down soft keys or the channel Up/Down  
  buttons and press the ENTR soft key.
2. Using the Up/Down soft keys or the channel Up/Down  
  buttons to highlight DELETE CALL LOGS.
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To Delete Call Log Information continued:
    3. Press the ENTR key.
    4. Using the Up/Down soft keys or the channel Up/Down  
  buttons to highlight DISTRESS or RECEIVED CALLS  
 log entry.
5. Press the ENTR key  and conrm delete by pressing the  
 ENTR key.
6. 
Press the EXIT soft key to exit the Position Send mode  
  and return the radio to the DELETE CALL LOGS Menu.
7HVW&DOO
The Test Call feature allows the user to conrm that the radio is fully operational and 
that the DSC call functions are working properly.
    1. Press the CALL soft key and scroll to TEST CALL with  
      the UP/Down soft keys or the channel Up/Down buttons  
      and press the ENTR soft key.
    2. Using the Up/Down soft keys or the channel Up/Down  
      buttons to highlight a previously entered directory entry  
      or use the MANUAL entry option.
    3. Press the ENTR key.
    4. Press the ENTR soft key to send the Test Call.
    5. The radio will tune to the voice channel previously selected.
    6. Press the EXIT soft key to exit the Test Call mode and  
      return the radio to the Call Menu.
$ODUP,Q
Allows connection to the alarm output of your chart plotter to alert you when an 
arrival, off-course, etc.alarm has been activated.
    1. Connect the Blue wire on the back panel wire harness  
      to the Alarm Output of your plotter (see the operators  
      manual of your plotter for connection and use details).
    2. When your plotter outputs the alarm signal (the plotter  
      grounds the alarm output), your CobraMarine radio will  
      activate the Alarm screen and sound a loud alarm tone.
    3. Pressing any key on your CobraMarine radio will silence  
      the alarm.

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Specications   
  Number of Channels   All U.S.A., Canadian, and International  
10 NOAA Weather Channels
  Channel Spacing   25 kHz
  Modulation  5 kHz Max.
  Input Voltage  13.8 VDC
  Current Drain:   
       Stand-by  20 mA 
       Receive  200 mA 
       Transmit  5A @ High power     1A @ Low
  Temperature Range  -20˚ C to 55˚ C
  Unit Dimensions   6.25” x 3.0” x 6”  
(15.9 cm x 5.7 cm x 18 cm) 
  Unit Weight  2 lbs., 12.0 oz. (1100 g)
  Frequency Range  156.050 to 163.275 MHz
  Receiver Type  Double Conversion Super-Heterodyne
  Sensitivity:   
       20 dB Quieting  0.35 uV 
       12 dB Sinad  0.30 uV
  AF Output  2.5 Watts @ 8 Ohms
 7UDQVPLWWHU
  Frequency Range: TX  156.025 to 157.425 MHz
  RF Output Power  1 and 25 Watts
  Spurious Emissions  -60 dB High -55 dB Low
  Microphone Type   Electret
  Frequency Stability  +/-10 ppm
  FM Hum and Noise  40 dB
No display on LCD when 
radio is turned On
Improper power 
connection
Insure power connections 
are proper and secure
Will transmit at  
one (1) watt, but not  
at 25 watts
Selected channel is 
limited to one (1) watt
Switch to  
another channel
Will not transmit Selected channel is 
limited to receive only
Switch to  
another channel
No sound from speaker Volume level is too low or 
squelch level is too deep
Readjust volume  
and squelch
No answer to calls Out of range of  
other station
Signal is blocked  
by terrain
Switch to high power  
(25 watts) or move closer
Move until you have  
a “line-of-sight” to  
the other station
7URXEOHVKRRWLQJ
  Problem   Possible Cause(s)   Solution(s)
Maintenance 
Very little maintenance is required to keep your CobraMarine VHF radio in good 
operating condition.
Q  Keep the radio clean by wiping with a soft cloth and mild detergent.  
Rinse with fresh water. Do not use solvents or harsh or abrasive cleaners, 
which could damage the case or scratch the LCD screen.
Q   If the radio is exposed to salt water, rinse it in fresh water at least once  
a day to prevent build-up of salt deposits, which could interfere with  
button operation.
Troubleshooting 

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VHF Marine Channel Assignments 
Three (3) sets of VHF channels have been established for marine use in the U.S.A., 
Canada and the rest of the world (International). Most of the channels are the same for 
all three (3) maps, but there are denite differences (see table on the following pages). 
Your radio has all three (3) maps built into it and will operate correctly in whichever 
area you choose. 
The following is a brief outline of the channel assignments in the U.S.A. Channel Map.
Channel 16 
Getting the attention of another station (calling) or in emergencies (distress and safety).
Channel 9  
General-purpose (non-emergency) calling by non-commercial vessels. Recreational boaters are 
urged to use this channel to reduce congestion on Channel 16.
Channel 6 
Ship-to-ship safety messages and for search and rescue messages to Coast Guard ships  
and aircraft.
Channel 22A 
To talk to the Coast Guard, Canadian Coast Guard (non-emergency) after making contact on 
Channel 16.
1RQ&RPPHUFLDO
Channels 68*, 69, 71, 72, 78A, 79A*, 80A* 
Working channels for small vessels. Messages must be about needs of the vessel, such as shing 
reports, berthing and rendezvous. Use Channel 72 only for ship-to-ship messages.
&RPPHUFLDO
Channels 1A, 7A, 8, 9, 10, 11, 18A, 19A, 63A, 67, 72, 79A, 80A, 88A* 
Working channels for working ships only. Messages must be about business or needs  
of the ship. Use Channels 8, 67, 72 and 88A only for ship-to-ship messages. 
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Asignación de canales de VHF para radiocomunicación marítima
Existen tres (3) juegos de canales VHF para uso marítimo en los EE.UU., Canadá y 
el resto del mundo (internacional). La mayoría de los canales coinciden en los tres 
(3) mapas, pero sin duda existen diferencias (consulte las tablas en las páginas 
siguientes). El radio incorpora los tres (3) mapas y funcionará correctamente en 
cualquiera de las tres áreas. 
A continuación presentamos en forma resumida las asignaciones de canales del  
Mapa de canales para EE.UU. 
$X[LOLRVHJXULGDG\OODPDGDV
Canal 16 
Para ser oídos por otra estación (llamadas) o en casos de emergencia (auxilio y seguridad).
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Canal 9 
Llamadas de carácter general (excepto casos de emergencia) para embarcaciones no comerciales.  
Se le pide encarecidamente a la tripulación de las embarcaciones recreativas usar este canal 
para reducir la congestión del canal 16.
6HJXULGDGHQWUHHPEDUFDFLRQHV
Canal 6 
Para mensajes de seguridad entre embarcaciones y para mensajes de búsqueda y rescate 
enviados a barcos y aviones de la guardia costera.
Canal 22A 
Para hablar con las guardias costeras estadounidenses y canadienses (excepto casos de 
emergencia) tras haber establecido contacto por el canal 16. 
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Canales 68*, 69, 71, 72, 78A, 79A*, 80A* 
Canales activos para pequeñas embarcaciones. Los mensajes deberán estar relacionados con 
necesidades de las embarcaciones, como por ejemplo, informes de pesca, atraques y agrupamientos.  
Use el canal 72 solamente para mensajes entre embarcaciones.
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Canales 1A, 7A, 8, 9, 10, 11, 18A, 19A, 63A, 67, 72, 79A, 80A, 88A* 
Canales activos para embarcaciones activas solamente. Los mensajes deberán estar 
relacionados con la actividad comercial o las necesidades de la embarcación. Use los 
canales 8, 67, 72 y 88A solamente para mensajes entre embarcaciones. 

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Channels 24, 25, 26, 27, 28, 84* 
Tune your radio to the proper channel for your area (see seatow.com/arc).  Conduct a radio check 
as you normally would.  Upon releasing the mic the system will replay your transmission letting 
you hear how you sound.
Channels 1A*, 5A*, 12*, 14*, 18, 19, 20A, 21, 22, 63A*, 65A, 66A, 73, 74, 75, 76, 77*, 79, 80, 81, 82 
Used for directing the movement of ships in or near ports, locks or waterways. Messages  
must be about operational handling, movement and safety of ships. 
Channels 13, 67 
Channels are available to all vessels. Messages must be about navigation, including passing  
or meeting other vessels. These are also the main working channels for most locks and 
drawbridges. You must keep your messages short and power output at no more than 1 watt.
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Channel 17 
For talking to vessels and coast stations operated by state or local governments. Messages must 
be about regulation and control, boating activities, or assistance.
Channel 70 
This channel is set aside for distress, safety and general calling using only digital selective calling 
techniques. Voice communication is prohibited; your radio cannot transmit voice messages on this 
channel.
Channels Wx 1 Thru 10 
Receive-only channels for NOAA and Canadian weather broadcasts. You cannot transmit on these 
channels.
NOTE  
*  These channels are restricted to the listed uses in certain parts of the country  
or for certain types of users only. Consult FCC rules or a knowledgeable radio  
operator before using them.
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Canales 24, 25, 26, 27, 28, 84* 
Sintonice su radio en el canal correcto para su área (ver seatow.com/arc). Llevar a cabo una 
comprobación de la radio como lo haría normalmente. Al soltar el micrófono el sistema se volverá 
a reproducir la transmisión que le permite escuchar cómo suena.
Canales 1A*, 5A*, 12*, 14*, 18, 19, 20A, 21, 22, 63A*, 65A, 66A, 73, 74, 75, 76, 77*, 79, 80, 81, 82 
Usados para dirigir el movimiento de las embarcaciones dentro de áreas portuarias, esclusas o 
canales. Los mensajes deberán estar relacionados con maniobras operacionales, movimientos  
y seguridad de las embarcaciones. 
Canales 13, 67 
Estos canales están disponibles para todas las embarcaciones. Los mensajes deberánestar relacionados 
con la navegación, incluidas las maniobras para pasar o alcanzar otrasembarcaciones. Éstos también 
son los principales canales activos para la mayoría de las esclusas y puentes levadizos. Usted deberá 
transmitir mensajes cortos y mantener la potencia de salida en un vatio como máximo.
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Canal 17 
Para comunicarse con embarcaciones y estaciones costeras operadas por entidades 
gubernamentales locales o estatales. Los mensajes deberán estar relacionados con regulación y 
control, asistencia o actividades de navegación.
/ODPDGDVVHOHFWLYDVGLJLWDOHV
Canal 70 
Este canal está reservado para solicitudes de auxilio, seguridad y llamadas de carácter general 
que usen solamente técnicas de llamadas selectivas digitales. Las comunicaciones verbales están 
prohibidas; el radio no puede transmitir mensajes de voz por este canal.
0HWHRURORJtD
Canales Wx 1 a 10 
Canales de recepción únicamente para difusión de información meteorológica NOAA y canadiense. 
Usted no puede transmitir por estos canales.
NOTA  
*  El uso de estos canales está dedicado a las aplicaciones que aparecen en la lista, en 
ciertas partes del país o para ciertos tipos de usuario solamente. Consulte las normas de 
la FCC o a un operador de radio con experiencia antes de usarlos.

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      • •  156.050  160.650          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
  •        156.050  156.050          Port Operations and Commercial,    Operaciones portuarias y comerciales;   
                     VTS in selected areas      VTS en áreas selectas
      •  •  156.100  160.700         Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo) 
      •  •  156.150  160.750         Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
      •     156.200  160.800          Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo) 
                     Port Operations, Ship Movement    operaciones portuarias,movimiento de embarcaciones
       •   156.200  156.200          West Coast (Coast Guard Only);     Costa occidental (guardia costera solamente); 
                     East Coast (Commercial Fishing)     Costa oriental (pesca comercial) 
       •    156.250  160.850          Public Correspondence (Marine Operator),  Correspondencia pública (operador marítimo) 
                     Port Operations, Ship Movement    operaciones portuarias,movimiento de embarcaciones
   •    •   156.250  156.250          Port Operations, VTS in selected areas  Operaciones portuarias; VTS en áreas selectas
   •  •  •  156.300  156.300          Intership Safety      Seguridad entre embarcaciones
      •    156.350  160.950         Public Correspondence (Marine Operator),  Correspondencia pública (operador marítimo) 
                     Port Operations, Ship Movement    operaciones portuarias,movimiento de embarcaciones   
   •    •   156.350  156.350          Commercial       Comerciales
   •  •  •  156.400  156.400          Commercial (Intership Only)    Comercial (entre embarcaciones solamente)
   •  •  •  156.450  156.450          Boater Calling Channel,      Canal de llamada de la tripulación, 
                     Non-Commercial (Recreational)    no comercial (recreativo)
   •  •  •  156.500  156.500         Commercial       Comerciales
   •  •  •  156.550  156.550          Commercial, VTS in selected areas    Comercial; VTS en áreas selectas
   •  •  •  156.600  156.600          Port Operations, VTS in selected areas  Operaciones portuarias; VTS en áreas selectas
   •  •  •  156.650  156.650 1 watt USA       Intership Navigation Safety (Bridge-to-Bridge).  
In U.S. waters, large vessels maintain a  
listening watch on this channel. 
   •  •  •  156.700  156.700          Port Operations, VTS in selected areas  Operaciones portuarias; VTS en áreas selectas
   •        Rx Only  156.750          Environmental (Receive Only).     Medioambiental (recepción solamente). 
                             Usado por radiobalizas de localización 
                             de siniestros (EPIRB) clase C
        •  156.750  156.750  1 watt CANADA      Canada (EPIRB Buoys Only); International  Canadá (boyas de EPIRB solamente); 
                     (On-Board Communication)    Internacional (comunicación de a bordo)
&KDQQHO8VH(QJOLVK8VRGHFDQDOHV(VSDxRO
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1 vatio EE.UU. y Canadá  Seguridad marítima entre embarcaciones (de 
puente de mando a puente de mando). En aguas 
estadounidenses, las grandes embarcaciones se 
mantienen vigilantes con sus radios sintonizados 
en este canal
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1 vatio Canadá

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   •  •  •  156.800  156.800          International Distress, Safety and Calling  Llamadas, seguridad y solicitud  
                             de auxilio internacional 
   •  •  •  156.850  156.850  1 watt CANADA      Search and Rescue      Búsqueda y rescate 
      •    156.900  161.500          Port Operations, Ship Movement    Operaciones portuarias,  
                             movimiento de embarcaciones
   •    •  156.900  156.900          Commercial        Comerciales
      •    156.950  161.550          Port Operations, Ship Movement    Operaciones portuarias,  
                             movimiento de embarcaciones
   •    •   156.950  156.950          Commercial        Comerciales
   •   •  •  157.000  161.600  1 watt CAN      Canada (Coast Guard Only); International   Canadá (guardia costera solamente);  
                     (Port Operations, Ship Movement)    Internacional (operaciones portuarias,  
                             movimiento de embarcaciones)   
   •        157.000  157.000          Port Operations      Operaciones portuarias 
      •    157.050  161.650          Port Operations, Ship Movement    Operaciones portuarias,  
                             movimiento de embarcaciones
   •    •   157.050  157.050          U.S. (Government Only);       EE.UU. (entidades gubernamentales solamente);    
                     Canada (Coast Guard Only)    Canadá (guardia costera solamente)  
       •   RX only  161.650          Coast Guard Only – Weather Broadcasts  Solamente Guardacostas –  
                             Transmisiones Meteorológicas 
      •    157.100  161.700          Port Operations, Ship Movement    Operaciones portuarias,  
                             movimiento de embarcaciones
   •    •   157.100  157.100         U.S. and Canadian Coast Guard Liaison and   Enlace entre las guardias costeras  
                     Maritime Safety Information Broadcasts that   y canadienses, y difusión de información sobre 
                     are announced on Channel 16    seguridad marítima anunciada por el canal 16
      • •  157.150  161.750         Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)  
  •       157.150  157.150          Coast Guard Only       Solamente Guardacostas
        •  RX Only  161.750          Coast Guard Only       Solamente Guardacostas
 • • •  157.200  161.800         Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo),   
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
 • • •  157.250  161.850         Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo),   
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
    •  RX only  161.850         Safety: Continuous Marine Broadcast (CMB)  Seguridad: Transmisión Marítima Continua (CMB) 
                     service by MCTS Canada     servicio por MCTS Canadá
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1 vatio Canadá y Internac
1 vatio Canadá
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1 vatio Canadá

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  • • •  157.300  161.900         Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo), 
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
  • • •  157.350  161.950     Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo), 
                 Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones 
  • • •  157.400  162.000         Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo), 
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
    •  RX only  162.000          Safety: Continuous Marine Broadcast (CMB)  Seguridad: Transmisión Marítima Continua (CMB) 
                     service by MCTS Canada     servicio por MCTS Canadá
      • •  156.025  160.625          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
      •     156.075  160.675          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo),  
                     Port Operation, Ship Movement    operaciones portuarias, movimiento de embarcaciones
      •  156.075  156.075          U.S. (Government Only); Canada (Coast         
Guard Only); West Coast (Coast Guard          
Only); East Coast (Commercial Fishing)         
      •   156.125  160.725          Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo), 
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
       •    156.125  156.125         West Coast (Coast Guard Only);     Costa occidental (guardia costera    
                     East Coast (Commercial Fishing)     solamente); Costa oriental (pesca comercial)
      •     156.175  160.775          Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo), 
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
  •    •   156.175  156.175          Port Operations and Commercial,     Operaciones portuarias y comerciales;  
                     VTS in selected areas      VTS en áreas selectas
      • •  156.225  160.825          Public Correspondence (Marine Operator),  Correspondencia pública (operador marítimo), 
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
       •   156.225  156.225          U.S. (Government Only);       EE.UU. (entidades gubernamentales 
                     Canada (Commercial Fishing)    solamente); Canadá (pesca comercial) 
      •     156.275  160.875          Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo),  
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
  •    •  156.275  156.275          Port Operations      Operaciones portuarias
      •     156.325  160.925          Public Correspondence (Marine Operator),   Correspondencia pública (operador marítimo),  
                     Port Operations, Ship Movement    operaciones portuarias, movimiento de embarcaciones
  •    •  156.325  156.325  1 watt CAN      Port Operations      Operaciones portuarias   
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 EE.UU. (entidades gubernamentales 
solamente); Canadá (guardia costera 
solamente); Costa occidental (guardia costera 
solamente); Costa oriental (pesca comercial) 
1 vatio Canadá

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  • • •  156.375  156.375  1 watt USA       
  •  •  •  156.425  156.425         Non-Commercial (Recreational)    No comercial (recreativo)
  • • •  156.475  156.475          U.S. (Non-Commercial, Recreational); Canada  
(Commercial Fishing Only); International  
(Intership, Port Operations, Ship Movement)  
  • • •  RX only  156.525         Digital Selective Calling       Llamadas selectivas digitales (las comunicaciones 
                     (Voice communications not allowed)    verbales están prohibidas).
  • • •  156.575  156.575  1 watt USA      U.S. and Canada (Non-Commercial, Recreational);   EE.UU. y Canadá (no comercial, recreativo);  
                     International (Port Operations, Ship Movement)  Internacional (operaciones portuarias,  
                             movimiento de embarcaciones).    
    • • •  156.625  156.625         Non-Commercial (Intership Only)     No comercial (entre embarcaciones solamente).
  • • •  156.675  156.675          
U.S. (Port Operations); Canada (Commercial   EE.UU. (operaciones portuarias); Canadá (pesca 
Fishing Only); International (Intership,     comercial solamente); Internacional (comunicaciones 
Port Operations, Ship Movement)    entre embarcaciones, operaciones portuarias,  
        movimiento de embarcaciones).
  • • •  156.725  156.725          U.S. (Port Operations); Canada (Commercial   EE.UU. (operaciones portuarias); Canadá (pesca 
Fishing Only); International (Intership,     comercial solamente); Internacional (comunicaciones 
Port Operations, Ship Movement)    entre embarcaciones, operaciones portuarias,  
        movimiento de embarcaciones).
  • • •  156.775  156.775  1 watt      Port Operations (Intership Only)     Operaciones portuarias  
(entre embarcaciones solamente).
  • • •  156.825  156.825  1 watt      Port Operations (Intership Only)     Operaciones portuarias  
(entre embarcaciones solamente).
  • • •  156.875  156.875  1 watt USA       
Port Operations (Intership only). Restricted to   Operaciones portuarias (entre embarcaciones  
communications with pilots for movement and  solamente). Restringido a comunicaciones con   
docking of ships.      pilotos para el movimiento y atraque de 
        embarcaciones.
      •     156.925  161.525         Public Correspondence (Marine Operator)   Correspondencia pública (operador marítimo).
  •    •   156.925  156.925          Non-Commercial (Recreational)    No comercial (recreativo).
      •    156.975  161.575          Port Operations, Ship Movement    Operaciones portuarias,  
                             movimiento de embarcaciones.
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86$ ,QW·O &DQDGD 7UDQVPLW
 EE.UU. (entidades gubernamentales 
solamente); Canadá (guardia costera 
solamente); Costa occidental (guardia costera 
solamente); Costa oriental (pesca comercial) 
1 vatio Canadá
1 vatio EE.UU
1 vatio
1 vatio
1 vatio EE.UU
Internship Navigation Safety (Bridge-to-Bridge). 
In U.S. waters, large vessels maintain a listening 
watch on thias channel. 
 Seguridad marítima entre embarcaciones (de 
puente de mando a puente de mando). En aguas 
estadounidenses, las grandes embarcaciones se 
mantienen vigilantes con sus radios sintonizados en 
este canal.

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    •    •  156.975  156.975         Commercial (Also Non-Comercial     Comercial (en los Grandes 
                      only in Great Lakes)       Lagos también no comercial)
      •    157.025  161.625         Port Operations, Ship Movement     Operaciones portuarias,  
                             movimiento de embarcaciones
  •    •  157.025  157.025         Commercial (Also Non-Commercial     Comercial (en los Grandes 
                     only in Great Lakes)      Lagos también no comercial)
      •   157.075  161.675         Port Operations, Ship Movement     Operaciones portuarias, 
                             movimiento de embarcaciones
  •    •   157.075  157.075          U.S. (Government Only); Canada     EE.UU. (entidades gubernamentales solamente); 
                     (Coast Guard Only)      Canadá (guardia costera solamente)
     •   157.125  161.725          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo) 
                     Port Operation, Ship Movement    operaciones portuarias, movimiento de embarcaciones 
  •    •   157.125  157.125          U.S. (Government Only); Canada     EE.UU. (entidades gubernamentales solamente); 
                     (Coast Guard Only)      Canadá (guardia costera solamente)
      •   157.175  161.775          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo) 
                     Port Operation, Ship Movement    operaciones portuarias, movimiento de embarcacione
  •    •   157.175  157.175          U.S. (Government Only); Canada     EE.UU. (entidades gubernamentales solamente); 
                     (Coast Guard Only)      Canadá (guardia costera solamente)
       •   RX only  161.775         Coast Guard Only –  Weather Broadcasts  Solamente Guardacostas –  
                             Transmisiones Meteorológicas
  • • •  157.225  161.825          Sea Tow Automated Radio Check Service 
Sea Tow Servicio de radio automatizado del control 
Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo) 
                     Port Operation, Ship Movement    operaciones portuarias, movimiento de embarcaciones 
  • • •  157.275  161.875          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
  • • •  157.325  161.925          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
  • • •  157.375  157.375          Public Correspondence (Marine Operator)  Correspondencia pública (operador marítimo)
  • •   •   157.425  157.425  Public Correspondence (Ship to Coast).   Correspondencia pública (entre embarcación y costa). 
              In U.S. only within 75 miles of Canadian Border.   En los EE.UU., solamente dentro de los casi 
                121 kilómetros (75 millas) de la frontera canadiense
   •      157.425  157.425          Commercial Intership only     Comercial entre embarcaciones solamente
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NOTE  
Many of the plain-numbered channels, such as 01, 02 and 03, transmit and 
receive on different frequencies. This is termed duplex operation. The rest of the 
plain-numbered channels and all of the A channels, such as 01A, 03A and 
04A, transmit and receive on a single frequency, which is termed simplex 
operation. Your radio automatically adjusts to these conditions. When in simplex 
operation, the A icon will appear on the LCD (see illustration on page A3).
NOTE  
All channels are preprogrammed at the factory according to international 
regulations and those of the FCC (U.S.A.) and Industry Canada (Canada).  
They cannot be altered by the user nor can modes of operation be changed 
between simplex and duplex. 
NOTA  
Muchos de los canales de números simples, como 01, 02 y 03, transmiten  
y reciben en diferentes frecuencias. A esto se le llama operación dúplex. El 
resto de los canales de números simples y todos los canales A, como 01A, 
03A y 04A, transmiten y reciben en una sola frecuencia, a la que se le llama 
operación simple (simplex). Su radio se ajusta automáticamente a estas 
condiciones. Cuando esté en operación simple, el icono A aparecerá en la 
pantalla de cristal líquido (vea la ilustración de la página A3).
NOTA 
Todos los canales vienen programados previamente de fábrica conforme  
a los reglamentos internacionales y a los de la FCC (EE. UU) e Industry Canada 
(Canadá). No pueden ser alterados por el usuario, así como tampoco pueden 
cambiarse los modos de operación entre simple y dúplex.
Weather Channel Assignments 
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    162.550  NOAA     
  162.400  NOAA 
  162.475  NOAA 
  162.425  NOAA 
  162.450  NOAA 
  162.500  NOAA 
  162.525  NOAA 
  161.650  Canada 
  161.775  Canada 
  163.275  NOAA
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Limited 3-Year Warranty  
Cobra® Electronics Corporation warrants that its CobraMarine VHF radio, and the 
component parts thereof, will be free of defects in workmanship and materials  
for a period of three (3) years from the date of rst consumer purchase. This  
warranty may be enforced by the rst consumer purchaser, provided that the  
product 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 Service department, 
accompanied by proof of the date of rst 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 specic 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 tness for a 
particular 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/or do 
not allow the exclusion or limitation of incidental or consequential damages,  
so the above limitations may not apply to you.
Please contact your local dealer for warranty information.
:RUOG&LW\7LPH=RQHV
World City Time Zones 
In order to set correct local time as compared to different World City Time Zones, 
enter the hour “offset” as listed below. The correct local time appears on the VHF for 
Cities all over the world. See page 43 for setup information.
/RQJLWXGLQDO=RQH 2IIVHW &LW\
  E172.50 to W172.50  -12  IDLW (International Date Line West)
  W172.50 to W157.50  -11  Nome
  W157.50 to W142.50  -10  Honolulu
  W142.50 to W127.50  -9  Yukon STD
  W127.50 to W112.50  -8  Los Angeles STD
  W112.50 to W097.50  -7  Denver STD
  W097.50 to W082.50  -6  Chicago STD
  W082.50 to W067.50  -5  New York STD
  W067.50 to W052.50  -4  Caracas
  W052.50 to W037.50  -3  Rio de Janeiro
  W037.50 to W022.50  -2  Fernando de Noronha
  W022.50 to W007.50  -1  Azores Islands
  W007.50 to E007.50 GMT  +0  London
  E007.50 to E022.50  +1  Rome
  E022.50 to E037.50  +2  Cairo
  E037.50 to E052.50  +3  Moscow
  E052.50 to E067.50  +4  Abu Dhabi
  E067.50 to E082.50  +5  Maldives
  E082.50 to E097.50  +6  Dhuburi
  E097.50 to E112.50  +7  Bangkok
  E112.50 to E127.50  +8  Hong Kong
  E127.50 to E142.50  +9  Tokyo
  E142.50 to E157.50  +10  Sydney
  E157.50 to E172.50  +11  Solomon Islands
  E172.50 to W172.50  +12  Auckland

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Use the supplied template to mark and cut an opening in the at surface.
 CAUTION   
Before cutting, be sure the area behind the at surface is clear of any instruments 
or wires that might be damaged in the process.
Use la plantilla suministrada para marcar y cortar el agujero en la supercie plana.
 PRECAUCIÓN   
Antes de cortar, compruebe que no haya instrumentos o cables en el área detrás 
de la supercie plana, que puedan resultar dañados durante el proceso.
Product Service 
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Please call Cobra rst! DO NOT RETURN THIS PRODUCT TO THE STORE!  
See customer assistance on page A1.
If your product should require factory service, please call Cobra rst before sending 
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 to furnish the 
following to have the product serviced and returned:
1.   For warranty repair include some form of proof-of-purchase, such as a mechanical 
reproduction or carbon of a sales receipt. If you send the original receipt, it cannot 
be returned.
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 Parcel 
Service (UPS) or Priority Mail to avoid loss in transit to: Cobra Factory Service, 
Cobra Electronics Corporation, 6500 West Cortland Street, Chicago, Illinois 60707 
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 of warranty, 
a letter will automatically be sent informing you of the repair  
charge or replacement charge.
If you have any questions, please call 773-889-3087 for assistance.

For more information or to  
order any of our products,  
please visit our website:
www.cobra.com
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Nothing Comes Close to a Cobra®