Operation Manual

MT-500 47
• Use the SELECT/ENT knob to select REQ POS.
INT
Position Request Screen
• Press the
CALL
key to send the call. Call is made on channel 70. If you
observe the display closely, you will see the channel number change to
channel 70 momentarily and then revert to the previous working chan-
nel.
• While waiting for the reply from the called vessel,
WAITING . . . . appears in the lower line of the display.
INT
Waiting For the reply
• When the called vessel reply to your call, an alert sounds and RECEIVED
POSITION appears in the display.
INT
Position Received
• Push the SELECT/ENT knob to see the received Lat/Lon position.
7.5 Receiving DSC Calls
Your MT-500 can receive four types of DSC calls; Distress, All Ship’s, Indi-
vidual, and Group. Except for Distress, each call type is subdivided into one
or more priorities.
All Ship’s type receives the following priorities: Distress ACK, Distress Re-
lay, Urgency, and Safety.
Individual type receives the following priorities: Safety and Routine.
Group type receives one priority: Routine.
Also MT-500 can receive the calls of advanced Individual Routine priority;
Position Send, and Position Request. Lat/Lon position from another vessel