Vesper WMX850 User Manual page 55

CPA alarm - Time
CPA alarm - Target
Speed
CPA alarm - Your
speed
This value specifies the maximum amount of time (in minutes) that a
target's CPA must occur for it to trigger an alarm. If a target has a CPA
which is "too close" but the TCPA is greater than this value, no alarm
will be triggered.
This allows you to indicate that you only want alarms for targets which
pose a risk of collision in the "near future".
Selecting "OFF" allows a CPA alarm to be triggered regardless of the
time until CPA if it also meets the specifications of the other CPA alarm
settings.
This setting is only available if the "CPA alarm" setting is not set to
"OFF".
This value specifies the minimum SOG (in knots) that a target must be
moving for it to trigger a CPA alarm. If a target meets the other
specifications for a CPA alarm but is not moving at least this fast, no
alarm will be triggered.
This setting allows you to indicate that you don't want alarms for
stationary or slow moving targets.
Selecting "OFF" allows a CPA alarm to be triggered regardless of the
target's speed if it also meets the specifications of the other settings.
If this setting is lower than the "Target speed filter" setting a warning is
displayed to indicate you may be filtering more targets than you intend.
This setting is only available if the "CPA alarm" setting is not set to
"OFF".
This value specifies the minimum SOG (in knots) that your vessel must
be moving for a CPA alarm to be triggered by other vessels. If a target
meets the other specifications for a CPA alarm but your vessel is not
moving at least this fast, no alarm will be triggered.
This setting allows you to indicate that you don't want alarms when you
are stationary or moving slowly.
Selecting "OFF" allows a CPA alarm to be triggered regardless of the
target's speed if it also meets the specifications of the other settings.
This setting is only available if the "CPA alarm" setting is not set to
"OFF".
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