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26
6
DSC OPERATION
i
After receiving the acknowledgment, reply using the mi-
crophone.
➥
A distress alert contains (default);
• Nature of distress : Selected nature of the distress
• Position data
: GPS or manual input position data is 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.
■
Transmitting DSC calls
To ensure correct operation of the DSC function, please
make sure you set the squelch correctly. (p. 8)
D
Transmitting an individual call
The individual call function allows you to transmit a DSC sig-
nal to a specific ship only.
✔
Convenient
When the lcom MA-500TR
class
b
ais
transponder
is con-
nected to your transceiver, an individual DSC call can be
transmitted to a selected AIS target using the transponder,
without needing to enter the target’s MMSI code.
See the leaflet that comes with this manual for more details.
q
Push
[MENU]
to enter the DSC menu.
w
Rotate
[DIAL]
to select “
Individual Call
,” push
[DIAL•ENTER]
.
25W
INT
TAG
Received
DistressACK
<Osaka Bay
<CLR˘
Beep Off>
CALLING
--DSC Menu--
Select Item
Position Input
˘Individual Call
Group Call
All Ships Call
Position Request
Position Report
Summary of Contents for IC-M504
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