Icom IC-M504

24
6
DSC OPERATION
➥ 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
receiving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 Regular call
The nature of the distress call should be included in the dis-
tress call.
q Push [MENU] to enter the DSC menu.
w Rotate [DIAL] to select “Distress Setting,” and
push [DIAL•ENTER].
e Rotate [DIAL] to select the nature of the distress, push
[DIAL•ENTER].
 •‘Undesignated,’‘Explosion,’‘Flooding,’‘Colli-
sion,’‘ Grounding,’‘ Capsizing,’‘Sinking,’‘ Adrift
(Disableadrift),’‘Abandoning(Abandoningship),’‘Piracy
(Piracyattack)’and‘MOB (Man overboard)’ are available.
 •Theselectednatureofthedistressisstoredfor10minutes.
--DSC Menu--
Select Nature
Undesignated
˘Explosion
Flooding
Collision
<CLR˘Exit / ENT˘OK>
--DSC Menu--
Select Item
All Ships Call
Position Request
Position Report
Polling Request
Received Calls
˘Distress Setting