Icom iM504 Instruction Manual page 30

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6
DSC OPERATION
➥ A distress alert contains (default);
• Nature of distress : Undesignated distress
• Position data
➥ 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.
24
: GPS or manual input position data held
for 23.5 hrs or until the power is turned
OFF.
D 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 "D D i i s s t t r r e e s s s s S S e e t t t t i i n n g g ," and
push [DIAL•ENTER].
--DSC Menu--
Select Item
All Ships Call
Position Request
Position Report
Polling Request
Received Calls
˘ Distress Setting
e Rotate [DIAL] to select the nature of the distress, push
[DIAL•ENTER].
• 'U U n n d d e e s s i i g g n n a a t t e e d d ,' 'E E x x p p l l o o s s i i o o n n ,' 'F F l l o o o o d d i i n n g g ,' 'C C o o l l l l i i - -
s s i i o o n n ,'
'G G r r o o u u n n d d i i n n g g ,'
'A A d d r r i i f f t t (Disable adrift),' 'A A b b a a n n d d o o n n i i n n g g (Abandoning ship),'
'P P i i r r a a c c y y (Piracy attack)' and 'M M O O B B (Man overboard)' are avail-
able.
• The selected nature of the distress is stored for 10 minutes.
--DSC Menu--
Select Nature
Undesignated
˘ Explosion
Flooding
Collision
<CLR ˘Exit
<CLR
Exit / ENT
'C C a a p p s s i i z z i i n n g g ,'
'S S i i n n k k i i n n g g ,'
ENT˘OK>
OK>

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