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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 identification 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.

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This radio cannot send Distress Relay calls. Only large ships and shore stations, with 
specially equipped radios, can send Distress Relay calls.

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This radio does respond to a Distress Relay call just as it responds to a Distress call.

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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.

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Summary of Contents for MRF77

Page 1: ...W _ K L V V M 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 button...

Page 2: ...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 2...

Page 3: ...scan after 2 seconds of inactivity unless you switch out of the Memory Scan mode 88 30 60 75 p u u r o o p q r r u o j p u u r o o p q r r u o j NOTE If there are fewer than two 2 channels tagged the...

Page 4: ...on 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 a...

Page 5: ...ng 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...

Page 6: ...s Relay calls Only large ships and shore stations with specially equipped radios can send Distress Relay calls 7 3 2 6 2 2 c 7 9 This radio does respond to a Distress Relay call just as it responds to...

Page 7: ...tered 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 Indivi...

Page 8: ...ess 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 0 5 2 2 2 7 Position Request mode enables a DS...

Page 9: ...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...

Page 10: ...on 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 I J K L I M L N S V W K...

Page 11: ...I X Y Y W 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...

Page 12: ...ut 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 Vol...

Page 13: ...unicaci n mar tima Existen tres 3 juegos de canales VHF para uso mar timo en los EE UU Canad y el resto del mundo internacional La mayor a de los canales coinciden en los tres 3 mapas pero sin duda ex...

Page 14: ...25 26 27 28 84 Sintonice su radio en el canal correcto para su rea ver seatow com arc Llevar a cabo una comprobaci n de la radio como lo har a normalmente Al soltar el micr fono el sistema se volver a...

Page 15: ...ador mar timo Port Operations Ship Movement operaciones portuarias movimiento de embarcaciones 156 350 156 350 Commercial Comerciales 156 400 156 400 Commercial Intership Only Comercial entre embarcac...

Page 16: ...ns 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 t...

Page 17: ...pondence Marine Operator Correspondencia p blica operador mar timo Port Operations Ship Movement operacionesportuarias movimientodeembarcaciones 156 125 156 125 West Coast Coast Guard Only Costa occid...

Page 18: ...vement 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...

Page 19: ...Ship Movement operacionesportuarias movimientodeembarcacione 157 175 157 175 U S Government Only Canada EE UU entidades gubernamentales solamente Coast Guard Only Canad guardia costera solamente RX o...

Page 20: ...ciben en diferentes frecuencias A esto se le llama operaci n d plex El resto de los canales de n meros simples y todos los canales A como 01A 03A y 04A transmiten y reciben en una sola frecuencia a la...

Page 21: ...on 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 So...

Page 22: ...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 sa...

Page 23: ...ation or to order any of our products please visit our website www cobra com PLFUR7 0 1 2 1 0RELOH 36 1DYLJDWLRQ 6 VWHPV LJK HDU 2 2 3 4 5 6 7 1 2 2 7KH REUD OLQH RI TXDOLW 8 9 A B C D Nothing Comes C...

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