Icom IC-M412 Instruction Manual - Page 29

Transmitting DSC calls - specifications

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DSC OPERATION 6 i A fter receiving the acknowledgment, reply using the microphone. Scrolls ➥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 hours or until the power is turned OFF. ➥The Distress call is repeated every 3.5 to 4.5 minutes, until receiving an 'acknowledgement.' ('Call repeat' mode) • "RE-TRANSMISSION" is displayed. ➥Push [DISTRESS] to transmit a renewed Distress call, if desired. ➥"??" may blink instead of position and time indications when the GPS data is invalid, or has not been manually updated after 4 hours. n Transmitting DSC calls To ensure correct operation of the DSC function, please make sure you set the squelch correctly. (p. 7) D Transmitting an Individual call The Individual call function allows you to transmit a DSC sig- nal to a specific ship or a Coast station. 6 4 Convenient When the lcom MA-500TR class b ais transponder is connected 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 MA-500TR instruction manual for more details. q Push [MENU] to enter the DSC menu. w P ush [Y] or [Z] to select "INDIVIDUAL," then push [ENT]. Scrolls ☞ Continued on the next page 21

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21
6
DSC OPERATION
6
i
After receiving the acknowledgment, reply using the micro-
phone.
Scrolls
➥
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 hours or until the power is turned OFF.
➥
The Distress call is repeated every 3.5 to 4.5 minutes,
until receiving an ‘acknowledgement.’ (‘Call repeat’ mode)
• “RE-TRANSMISSION” is displayed.
➥
Push
[DISTRESS]
to transmit a renewed Distress call,
if desired.
➥
“??” may blink instead of position and time indications
when the GPS data is invalid, or has not been manually
updated after 4 hours.
n
Transmitting DSC calls
To ensure correct operation of the DSC function, please
make sure you set the squelch correctly. (p. 7)
D
Transmitting an Individual call
The Individual call function allows you to transmit a DSC sig-
nal to a specific ship or a Coast station.
4
Convenient
When the lcom MA-500TR
CLASS
B
AIS
TRANSPONDER
is con-
nected to your transceiver, an individual DSC call can be trans-
mitted to a selected AIS target using the transponder, without
needing to enter the target’s MMSI code.
See the MA-500TR instruction manual for more details.
q
Push
[MENU]
to enter the DSC menu.
w
Push
[
Y
]
or
[
Z
]
to select “INDIVIDUAL,” then push
[ENT]
.
Scrolls
☞
Continued on the next page