![background image](http://html1.mh-extra.com/html/icom/ic-m604a/ic-m604a_instruction-manual_2037992029.webp)
23
6
DSC OPERATION
6
u
After receiving the acknowledgment, reply using the
microphone.
9
+06
6#)
4GEGKXGF
&KUVTGUU#%-
1UCMC $C[
%.4
$GGR1HH
%#..+0)
➥
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
transceiver is turned OFF.
➥
The Distress call is repeated every 3.5 to 4.5 minutes,
until receiving an ‘acknowledgement.’ (‘Call repeat’ mode)
➥
Push
[DISTRESS]
to transmit a renewed Distress call,
if required.
➥
Push
[CLR]
to 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.
■
Transmitting DSC Calls
To ensure the DSC function operated correctly, please
make sure you set the squelch correctly. (p. 9)
D
Transmitting an Individual Call
The Individual Call function allows you to transmit a DSC
signal to only a specific ship.
q
Enter “
Individual Call
” in the DSC menu.
DSC Menu
➪
Individual Call
(Push
[MENU]
) (Rotate
[SELECTOR]
, then push
[ENT]
.)
w
Rotate
[SELECTOR]
to select the desired preset
individual address or “
Manual Input
,” then push
[ENT]
.
• The ID code for the Individual Call can be set first. (p. 16)
• When “
Manual Input
” is selected, use the keypad keys to
set the 9 digit MMSI ID code for the individual you wish to call.
NOTE:
When a base station is selected in step
w
, the
voice channel is automatically specified by the base
station, then “
Individual Call Ready
” will be
displayed. Therefore, skip step
e
and go directly to
step
r
.