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DSC OPERATION
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When the optional MA-500TR CLASS B AIS TRANSPON-
DER is connected to your transceiver, an individual 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 73 for connecting instructions.
To ensure correct operation of the DSC function, make
sure you correctly set the CH70 SQL LEVEL. (p. 63)
Step 1: Transponder’s operation
Select a desired AIS target on the plotter, target list or dan-
q
ger list display.
•Youcanalsogotothenextstepwheneverthedetailscreenof
the AIS target is displayed.
•Makesurethetransceiverisinthenormaloperatingmode.Oth
-
erwise, you cannot make an individual DSC call using the tran-
sponder.
Push [DSC] to display the voice channel selection screen,
w
and then push [
Y
] or [
Z
] to select a desired voice chan-
nel*.
•Voicechannelsarealreadypresetintothetransponderinrecom
-
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.
Push [DSC] to transmit an individual DSC call to the AIS
e
target.
•IfChannel70isbusy,thetransceiverstandsbyuntilthechannel
becomes clear.
•Ifthetransceivercannotmakethecall,thetransponderwilldis
-
play “DSC Transmission FAILED.”
Making an Individual call using an AIS transponder
■
Transponder’s display
Transceiver’s display
Transponder’s display
Transceiver’s display