User's Manual

1. OPERATION
1-24
1.10 Regional Operating Channels
AIS operates primarily on two dedicated VHF channels, CH 2087 and CH2088. Where
these channels are not available regionally, the AIS is capable of being automatically
switched to designated alternate channels by means of a message from a shore facil-
ity. Where no shore based AIS or GMDSS sea area A1 station is in place, the AIS
should be switched manually as in paragraph 1.10.2.
A regional operating area is set with the procedure shown below. The most recent
eight areas are memorized.
• Automatic setting of VHF DSC (channel 70) from shore-based AIS.
• Automatic setting by AIS message from shore-based AIS.
• Setting by shipboard system such as ECDIS.
• Manual setting
The default area is as follows:
• Tx power: 12.5 W
• Channel no. 2087, 2088
• Tx/Rx mode: Tx/Rx
1.10.1 How to view channel information
Do the following to view current channel information. To edit channel information, see
paragraph 1.10.2.
1. Press the MENU/ESC key to open the menu.
2. Select [CH INFO]. The [CH INFO] pop up window appears.
3. Press the DISP key to close the display.
CH INFO
REGION LIST
PWR
CH A
CH B
TX / RX A
TX /RX B
HIGH
2087
2088
TXRX
TX
1
Select to display the regional
channel list.
PWR
C
H A
C
H B
TX
/
RX A
TX
/
RX
B
H
IG
H
208
7
2088
T
XR
X
TX
Current channel’s details.
PWR: Power.
CH A: Channel used for channel A.
CH B: Channel used for channel B.
TX / RX A: Channel A TX/RX
settings.
TX / RX B: Channel B TX/RX
settings.