Cobra MR F55B-D MRF55D_MANL_ENG - Page 25
Digital Select Calling DSC, Operation
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Operating Your Radio Digital Select Calling (DSC) Operation DSC Operation • Sending DSC calls is done from menus similar to the Settings menu. Whereas entering the Settings menu required a press and hold of the Call/Set button, the sending menus appear with a press of the Distress button. All received DSC calls will sound one (1) or another of the alarms to alert you to them. See pages 34 through 35 for descriptions of the different alarms. Pressing any button will turn Off the alarm while maintaining the received call information on the LCD. Sending Distress Calls Sending and receiving distress calls and acknowledgements on Channel 70 can be a lifesaver for mariners. NOTE The DSC call will: I Sound the distress alarm at all receiving stations. I Informs receiving stations of the sender's identity (MMSI). I Informs receiving stations of the nature of the emergency. I 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 specific information must be communicated by voice on Channel 16 to the station that acknowledges a DSC Distress call. Distress Button Send/Manual/Exit To Send a DSC Distress Call: 1. From Standby mode, lift the spring-loaded red door on the transceiver and press the Distress button. The Distress menu displays with an arrow pointing to SEND. There are three (3) choices: I 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. I Include a Nature of Distress message with the distress call. I Abort the distress call process and return to Standby mode. 44 English Operating Your Radio Distress Button Manual Position Entry Screen Exit Digital Select Calling (DSC) Operation 2. Choose one (1) of the following: To Send An Automatic Distress Call: 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 Channel Up/Down buttons to manually select from the list of pre-programmed Nature of Distress calls - UNDEFINE, FIRE, FLOODING, GROUNDIN, COLLISIO, MORE. c. Press and hold the Distress button for three (3) seconds to transmit the distress signal. Abort The Distress Call Process: If the Distress button is pressed by mistake or to discontinue resending an automatic distress message: a. Press the Channel Up/Down buttons to move the arrow to EXIT. b. Press the Distress button to return to Standby mode. Transmit USA High NOTE You may also press the WX/ESC (escape) button to return to the Standby mode. Distress Waiting Distress Acknowledgement The Distress alarm sounds to confirm 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 and return to Standby mode. I If an acknowledgement is received, the Distress alarm sounds again and the responding party's MMSI number displays on the LCD. I 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. Nothing Comes Close to a Cobra® 45