B&G V90 VHF Radio - Manual (Page 72)

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AIS procedures | V90 Operating Manual
To zoom in or out:
• Press [3CH] to zoom in.
• Press [Scan] to zoom out.
Scales available are 1nm / 2 nm / 4 nm / 8 nm / 16 nm / 32 nm.
T/CPA screen
The Time and Closest Point of Approach (T/CPA) screen shows the
closest point of approach settings together with a list of vessels that
will approach within those criteria.
• CPA alert distance is set up in MENU → AIS SETUP → CPA. (See
“Setting up the CPA distance” on page 92.)
• T/CPA alert time is set up in MENU → AIS SETUP → TCPA. (See
“Setting up the T/CPA time” on page 93.)
The approaching AIS target’s details will be listed on the left of the
screen.
Once the vessel is within alert distance (CPA) and time (T/CPA), it will
be placed in the T/CPA list.
The alert sounds for every vessel within the criteria every time their
AIS signal is received.
T/CPA APPROACH
1/ 9 05:00 min 8 nM
• In the example above, the criteria are: 5:00 min and 8 nM.
¼ Notes:
• The scale on the T/CPA Approach screen is automatically set to the
optimum for the selected target. You cannot zoom in or out on this
screen.
• If the radio detects a T/CPA or CPA breach, the T/CPA Approach
screen will automatically popup with an alert tone. Press [X] to stop
the alert; otherwise, the alert will sound again after 1 minute.