ICOM IC-M504 User Manual
24
6
DSC OPERATION
➥ A distress alert contains (default);
• Nature of distress : Undesignated distress
• Position data
• Position data
: GPS or manual input position data held
for 23.5 hrs or until the power is turned
OFF.
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.
updated after 4 hours.
D
D Regular call
The nature of the distress call should be included in the dis-
tress call.
tress call.
q Push [MENU] to enter the DSC menu.
w Rotate [DIAL] to select “D
w Rotate [DIAL] to select “D
Di
is
st
tr
re
es
ss
s S
Se
et
tt
ti
in
ng
g,” and
push [DIAL•ENTER].
e Rotate [DIAL] to select the nature of the distress, push
[DIAL•ENTER].
• ‘U
Un
nd
de
es
si
ig
gn
na
at
te
ed
d,’ ‘E
Ex
xp
pl
lo
os
si
io
on
n,’ ‘F
Fl
lo
oo
od
di
in
ng
g,’ ‘C
Co
ol
ll
li
i-
-
s
si
io
on
n,’
‘G
Gr
ro
ou
un
nd
di
in
ng
g,’
‘C
Ca
ap
ps
si
iz
zi
in
ng
g,’
‘S
Si
in
nk
ki
in
ng
g,’
‘A
Ad
dr
ri
if
ft
t (Disable adrift),’ ‘A
Ab
ba
an
nd
do
on
ni
in
ng
g (Abandoning ship),’
‘P
Pi
ir
ra
ac
cy
y (Piracy attack)’ and ‘M
MO
OB
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
Flooding
Collision
<CLR
<CLR˘Exit
Exit / ENT
ENT˘OK>
OK>
--DSC Menu--
Select Item
All Ships Call
Position Request
Position Report
Polling Request
Received Calls
Position Request
Position Report
Polling Request
Received Calls
˘
Distress Setting