1 OPERATION
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1.11 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 switching to designated alternate channels by means of a
message from a shore facility. Where no shore based AIS or GMDSS sea area
A1 station is in place, the AIS should be switched manually as in paragraph
1.11.2.
A regional operating area is set with the procedure 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
• Frequency bandwidth: 25 kHz
• Tx/Rx mode: Tx/Rx
1.11.1 Viewing channels, Tx power
Do the following to view current channels.
1. Press the [MENU] key to open the menu.
2. Press the [6] key to open the SYSTEM SETTINGS sub-menu.
3. Press the [2] key to choose SET CHANNEL.
[SET CHANNEL]
1 VIEW CHANNEL
2 CHANNEL EDIT
SET CHANNEL menu
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