![background image](http://html.mh-extra.com/html/icom/ic-m504a/ic-m504a_instruction-manual_612822027.webp)
21
6
DSC OPERATION
r
After receiving the acknowledgment, reply using the micro-
phone.
25W
INT
TAG
Received
DistressACK
<Osaka Bay
<CLR˘
Beep Off>
CALLING
➥
A distress alert contains (default);
• Kind of distress : Undesignated distress
• Position data : The latest GPS or manual input position
data is held for 23.5 hours, or until the
power is turned OFF.
➥
The Distress call is repeated every 3.5 to 4.5 minutes, until
an ‘acknowledgement’ is received. (‘Call repeat’ mode)
➥
Push
[DISTRESS] to transmit a renewed Distress call,
if required.
➥
Push
[CLR] to transmit the Cancel Ack call, then cancel
the ‘Call repeat’ mode.
➥
“
??
” may blink instead of position and time displays
when the GPS data is invalid, or has not been manually
updated for 4 hours.
D
Regular call
The nature of the Distress call should be included in the Dis-
tress call.
q
Enter “
Distress Setting
” in the DSC menu.
DSC Menu
➪
Distress Setting
(Push
[MENU]) (Rotate [DIAL], then push [DIAL•ENTER].)
w
Rotate
[DIAL] to select the nature of the distress, then
push
[DIAL•ENTER].
• ‘Undesignated,’ ‘Explosion,’ ‘Flooding,’ ‘Collision,’ ‘Grounding,’
‘Capsizing,’ ‘Sinking,’ ‘Adrift (Disable adrift),’ ‘Abandoning (Aban-
doning ship),’ ‘Piracy (Piracy attack)’ and ‘MOB (Man overboard)’
are available.
•
The nature of the distress is stored for 10 minutes after a selec-
tion is made.
--DSC Menu--
Select Nature
Undesignated
˘Explosion
Flooding
Collision
<CLR˘Exit / ENT
˘OK>
When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-
nected, steps
e
and
r
(Current position/time program-
ming) do not appear. Go to step
t
.
☞
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Summary of Contents for IC-M504A
Page 1: ...INSTRUCTION MANUAL iM504A VHF MARINE TRANSCEIVER ...
Page 78: ......