Icom IC-M421 Instruction Manual page 29

➥ A distress alert contains (default);
• Nature of distress: Undesignated distress
• Position data : GPS or manual input position data held for
23.5 hrs or until the power is turned OFF.
➥ The distress call is repeated every 3.5–4.5 min., until re-
ceiving an 'acknowledgement.'
➥ Push [CLR] to cancel the 'Call repeat' mode.
➥ "
" may blink instead of position and time indications
when the GPS data is invalid, or has not been manually
updated after 4 hours.
D D Normal call
The nature of the distress call should be included in the dis-
tress call.
q Push [MENU] to enter the DSC menu.
w Push [L] or [M] to select "
push [ENT].
e Push [L] or [M] to select the nature of the distress, push
[ENT].
• 'Undesignated,' 'Explosion,' 'Flooding,' 'Collision,' 'Grounding,'
'Capsizing,' 'Sinking,' 'Adrift (Disable adrift),' 'Abandoning (Aban-
doning ship),' 'Piracy (Piracy attack),' and 'MOB (Man over-
board)' are available.
• The selected nature of the distress is stored for 10 minutes.
6
DSC OPERATION
," and
6
23