Operating Your Radio

Caller Identified

DSC Operation

Receiving An Individual Call

When another station makes an Individual call to your radio, the individual alarm will sound, the caller will be identified on the LCD, and your radio will be switched to the channel selected by the caller. Press any button to turn Off the alarm.

To Receive An Individual Call:

Press the Talk button and greet the caller — almost as if you were answering the telephone.

DSC Operation

Operating Your Radio

Receiving A Group Call

When another station makes a Group call to your radio, the individual alarm will sound, the caller will be identified on the LCD, and your radio will be switched to the channel selected by the caller, just as for an individual call. Press any button to turn Off the alarm.

Caller Identified

To Receive A Group Call:

1.

Listen for the group voice message.

2.

Press the Talk button and respond

 

only if appropriate.

Sending A Group Call

Sending a Group call is very similar to sending an individual call, except that the group MMSI is used and the resend and DSC responses do not apply.

Sending A Position Request

Position Request mode enables a DSC radio to obtain the position

Standby Mode

To Send A Group Call:

1. In Standby mode, select a channel on which you want

(latitude and longitude) of a station that has a GPS device connected to the DSC radio at that station.

Group

Send/Exit

Group Waiting

 

to communicate.

2.

Press the Call/Set button to enter the Call Send menu.

3.

Use the Up/Down buttons to scroll to GROUP.

4.

Press the Call/Set button to move to the send

 

or exit menu.

5.

Use the Up/Down buttons to select SEND or EXIT.

6.

Press the Call/Set button to send the message or

 

return to the Call Send menu if EXIT was chosen.

All radios will be switched to the channel selected in step 1. Press and hold the Talk button to send your voice message to everyone in the group.

Anyone in the group can now also transmit on that channel.

Standby Mode

Position Request

Individual Directory

To Request The Position Of Another Station:

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 POS REQST (position request) on the menu.

4.Press the Call/Set button to enter the Individual Directory menu.

5.Use the Up/Down buttons to scroll to the name of the station whose position you want to request.

60 English

Nothing Comes Close to a Cobra® 61

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Cobra Electronics MRF45 owner manual Receiving An Individual Call, Receiving a Group Call, Sending a Group Call