Icom IC-M505 Instruction Manual page 81

MAKING AN INDIVIDUAL DSC CALL USING AN AIS TRANSPONDER
When the lcom MA-500TR
nected to your IC-M504/IC-M505/IC-M603/IC-M604
, an individual DSC call can be transmitted to a
TRANSCEIVER
selected AIS target using the transponder, without needing to
enter the target's MMSI code.
See the transponder's manual for connecting instructions.
Step q: Transponder's operation
Select a desired AIS target on the plotter, target list or danger 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. Otherwise,
you cannot make an individual DSC call using the transponder.
Step w: Transponder's operation
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 recommended
order.
* When a base station is selected in step q, a voice channel will be spec-
ified by the base station, therefore you cannot change the channel. The
transponder will display "Voice Channel is specified by the Base station,"
in this case.
Step e: Transponder's operation
Push [DSC] to make the transceiver to transmit an individual DSC
call to the AIS target.
• If Channel 70 is busy, the transceiver stands by until the channel becomes
clear.
• If the transceiver cannot make the call, the transponder will display "DSC
Transmission FAILED."
Step r: Transponder's operation
After making the individual DSC call, the transponder will display
"DSC Transmission COMPLETED."
• Push [CLEAR] to return to the previous screen before you entered the
voice channel selection screen in step w.
• The transceiver stands by on Channel 70 until an acknowledgement is
received.
Step t: Transceiver's operation
When the acknowledgement 'Able to comply' is received, beeps
sound and the transceiver automatically selects the channel spec-
ified in step w.
If the acknowledgement 'Unable to comply' is received, beeps sound
and the transceiver's display returns to the operating channel select-
ed before making the individual DSC call.
• Push [CLR] to stop the beeps.
• You can check the MMSI code or the name (if programmed) of the AIS
target on the display.
Step y: Transceiver's operation
After receiving the acknowledgement 'Able to comply' in step t,
push and hold [PTT] to communicate with the AIS target.
TRANSPONDER
is con-
CLASS B AIS TRANSPONDER
VHF MARINE
Procedures
[Y]
[Z]
[CLEAR]
[DSC]
To ensure correct operation of the DSC function, make
sure you correctly set the transceiver's squelch.
These instructions are based on using the IC-M604. The dis-
played screens, indications or operations may differ slightly
from the instructions, depending on the transceiver.
Transponder's display
[PTT]
TRANSCEIVER (IC-M603/M604)
Transceiver's display
25W INT
DUP
34°34.506N
123°23.236W
UTC 12:00 INTL
(Example)
Individual Call
Individual Call
TX Complete
Now Waiting for ACK
<CLR Exit>
'Able to comply' is received
25W INT
Received
INDV ACK
'Unable to comply' is received.
<123456789
<CLR˘
Beep Off> COMMERCIAL 25W INT
DUP
Received
Unable ACK
<123456789
<CLR˘
Beep Off> INTL
'Unable to comply' is received
[CLR]
16
A-6527D-3EX