Cobra Electronics MARINE MR F75-D - Manual (Page 28)

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Digital Select Calling (DSC)
Operation
51 50 English
Digital Select Calling (DSC)
Operation
Receiving An All Ships Call
All Ships calls sent by stations within range of your radio will sound
the distress alarm on your radio and switch your radio to Channel 16.
When An All Ships Call Is Heard:
1. Press any button to turn Off the alarm and return to
Standby mode.
2. Read and write down the MMSI of the vessel sending
the call as well as the date and time of the call in case
you will want to respond.
3. Listen to the voice message sent on the channel your
radio was switched to by the incoming all ships call.
Some All Ships calls have channel information.
Sending A Geographical Call
Your radio cannot send Geographical calls. Only large ships and shore
stations with specially equipped radios can send these calls.
Receiving A Geographical Call
Geographical calls are sent by specially equipped radios to all stations in a
particular geographical area to alert only those stations of the call and not
stations in unaffected areas. If you are in an area to which a Geographical
call is made, it will sound the geographical alarm on your radio and switch
your radio to the channel chosen by the sending station.
When A Geographical 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 in case you will want to respond.
3. Listen to the voice message sent on the channel your
radio was switched to by the incoming geographical call.
4. Press one (1) of the following three (3) buttons to
switch from geographical call receive to Standby mode:
Call/Set button, Channel 16/9 button, or Talk button.
Sending An Individual Call
The DSC Individual call feature allows you to notify one (1), and only one (1),
station that you want to communicate with that station. It does not alert all
other stations within range that you will be sending a message as a voice
call on Channel 16 or Channel 9 would.
To Send An Individual Call:
1. In Standby mode, select a channel on which you
want to communicate.
2. Press the Call/Set button to enter the Call Send menu.
3. Use the Up/Down buttons to scroll to
INDIV (Individual).
4. Press the Call/Set button to move to the individual directory.
5. Use the Up/Down buttons to select the name you
want to call from the directory.
6. Press the Call/Set button to send the message or
return to Standby mode if EXIT was chosen.
If the radio you are calling sends back an automatic DSC
response of “able to comply,” the individual alarm will
sound. Wait for a voice message from the called station.
If the called radio does not send an “able to comply”
response, your radio will wait eight (8) seconds and
resend the message.
If an “unable to comply” response or no reply is
received, your radio will go to the Unavailable menu.
At the Unavailable menu, you can choose
SEND or
EXIT with the Up/Down buttons. If you choose SEND ,
your radio will restart the individual call. If you choose
EXIT you will be returned to the individual location
on the Call Send menu.
All Ships Call
Standby Mode
Individual
Select Name
Send/Exit
Geographical Call
Operating Your Radio Operating Your Radio
Individual Waiting
F75D_OPERATION:F75-Operation-8 12/13/10 3:52 PM Page 50