Garmin VHF 110 Marine Radio Owners Manual - Page 9

1 Select MENU > DSC > MY MMSI. 2 Enter your MMSI number (Entering Text, page 4). 3 Select ACCEPT. The radio prompts you to confirm your identity. 4 Enter your MMSI number again, and select ACCEPT. If the MMSI numbers you entered do not match, a message appears. 5 If necessary, select RETRY, and enter the number again. Viewing Your MMSI Number Select MENU > DSC > MY MMSI. Distress Calls When you make a distress call, your call is transmitted to all DSC-capable radios within receiving range. Your current GPS position (latitude and longitude) and the current time are included in the transmission if you have a GPS device connected to your transceiver. If you manually entered your position information with the time, that data is transmitted with the call. NOTE: You should familiarize yourself with the standard distress-call format and protocol to ensure your calls are clear and effective. Sending an Undesignated Distress Call When you send an undesignated distress call, the nature of your emergency is not transmitted to the receiving stations. Sending an undesignated distress call is a faster procedure that can save you time during an emergency. 1 Lift the spring-loaded door, and hold DISTRESS for at least 3 seconds. The radio beeps and counts down the seconds. DISTRESS CALL COUNTING DOWN appears on the screen. The radio sounds an alarm, switches to channel 70, and transmits your call on high (25 W) power. 2 Press any key to silence the alarm sound. The radio tunes to channel 16 on high (25 W) power. 3 Select PTT on the handset or radio to relay your distress message. The radio waits for an acknowledgment (ACK) on channel 70 from a listening station. Sending a Designated Distress Call When you send a designated distress call, the nature of your emergency is transmitted to the receiving stations. 1 Lift the spring-loaded door, and press DISTRESS. 2 Turn the SELECT dial, and select the type of distress call. TIP: You can select CLEAR to exit the screen without sending a distress call. 3 Hold DISTRESS for at least three seconds. The radio beeps and counts down the seconds. DISTRESS CALL COUNTING DOWN appears on the screen. The radio sounds an alarm, switches to channel 70, and transmits your call on high (25 W) power. 4 Press any key to silence the alarm sound. The radio tunes to channel 16 on high (25 W) power. 5 Select PTT on the handset or radio to relay your message. The radio waits for an acknowledgment (ACK) on channel 70 from a listening station. Waiting For and Receiving and Acknowledgment for a Distress Call If the radio does not receive an acknowledgment for a distress call, the radio retransmits the distress call randomly between 3.5 to 4.5 minutes later, and continues to retransmit the distress call at random intervals until the radio receives an acknowledgment. When the radio receives the acknowledgment, it beeping and DISTRSS ACK appears on the screen. 1 Press any key to turn off the beeping. 2 Select to view additional information. TIP: If the MMSI of the station transmitting the acknowledgment signal is an entry in your directory, the name associated with the MMSI number appears on the screen. If the MMSI of the station is not in your directory, the MMSI number appears on the screen. 3 Select ACCEPT. Stopping Automatic Retransmission of Distress Calls Select CANCEL. The radio remains tuned to channel 16. NOTE: Selecting CANCEL ends the automatic repetition of the call, but does not communicate to other stations that you no longer have an emergency. If you no longer have an emergency, you should revoke the distress call (Revoking a Distress Call, page 5). Revoking a Distress Call You do not transmit a distress call until you hold DISTRESS for at least three seconds. If you inadvertently make a distress call, or are no longer in distress, you should cancel the call immediately by transmitting a voice message to all stations on channel 16. 1 Select CANCEL > YES, and wait until DISTRESS CANCEL HAS BEEN SENT appears on the screen. 2 Select OK. 3 Hold PTT on the handset, and transmit an appropriate voice message to cancel the distress call (Distress Call Cancellation Script, page 5). 4 Select an option: • Select END to complete the distress-call cancellation and return to normal radio operation. • Select RESEND to resend the distress-call cancellation and start the process again. Distress Call Cancellation Script When you revoke a DSC distress call (Revoking a Distress Call, page 5), you should transmit an appropriate cancellation message. For example, "All stations, all stations, all stations, this is _____(vessel name), MMSI number ____, position ____(North or South), ____(West or East). Cancel my distress alert of ____(date and time). This is ____(vessel name), MMSI number ____. Out." Placing Calls Placing Individual Calls 1 Select DSC > INDIVIDUAL. 2 Select an option: • To enter the MMSI number manually, select MANUAL, enter the MMSI number, and select ACCEPT. • To select an entry from the directory, select DIRECTORY, and select an entry. • To select a recent call, select RECENT CALLS. 3 Select a channel (Individual Call or Group Call Channels, page 6). The radio transmits the request with your call. 4 Select CALL. The radio transmits the call on channel 70, and returns to the previous channel while listening for an acknowledgment on Digital Selective Calling 5