Making An Individual Call Using An Ais Transponder - Icom IC-M423G Instruction Manual

■ Making an Individual call using an AIS transponder

When the optional MA-500TR/MA-510TR* CLASS B AIS
TRANSPONDER is connected to your transceiver, an indi-
vidual DSC call can be transmitted to a selected AIS target,
without needing to enter the target's MMSI code. In this case,
the call type is automatically set to Routine.
See page 85 for connecting instructions.
* Unreleased as of April 2020.
To ensure correct operation of the DSC function, make
sure you correctly set the CH70 SQL LEVEL. (p. 67)
Step 1: Transponder's operation
NOTE: This instruction is for the MA-500TR. See the MA-
510TR Instruction manual for the MA-510TR's step.
q Select a desired AIS target on the plotter, target list or dan-
ger list display.
• You can also go to the next step whenever the detail screen of
the AIS target is displayed.
• Make sure the transceiver is in the normal operating mode. Oth-
erwise, you cannot make an individual DSC call using the tran-
sponder.
w Push [DSC] to display the voice channel selection screen,
and then push [Y] or [Z] to select a desired voice channel*.
• Voice channels are already preset into the transponder in recom-
mended order.
* When a coast station is selected in step q, a voice channel will
be specified by the coast station, therefore you cannot change
the channel. The transponder will display "Voice Channel is
specified by the Base station," in this case.
Transponder's display
e Push [DSC] to make an individual DSC call to the AIS tar-
get.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
• If the transceiver cannot make the call, the transponder will dis-
play "DSC Transmission FAILED."
Transponder's display
7
DSC OPERATION
Transceiver's display
Transceiver's display
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
69