Icom M605 User Manual - Page 89

DCPA/TCPA, Rotate [CH/ENT] or push

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AIS RECEIVER 10 DDCPA/TCPA In this menu, you can edit alarm settings for the AIS receiver. • Alarm You can turn the collision alarm function ON or OFF. 1 • Slow Warn The GPS receiver calculated COG data of a vessel that is at 2 anchor or drifting is unreliable, and therefore the CPA and 3 TCPA data may not be calculated correctly. If a vessel is anchored in your alarm zone, the unreliable data can cause 4 the collision alarm to sound many times, even if there is no 5 real danger. To prevent this, when the anchored vessel's SOG is less than this set value, the Slow Warn function 6 assumes that vessel's COG is fixed towards your vessel and 7 an alarm will sound. 8 zzRotate [CH/ENT] or push [Y]/[Z] to set the value between 0.1 and 4.9 kt (in 0.1 kt steps), or select OFF. (default: 1.0 kt) 9 10 11 12 13 14 NOTE: If other vessels at anchor or drifting come into your alarm zone, the Slow Warn alarm will sound again. Only if 15 the previous vessel disappears from the Danger List 16 (p. 74), and then re-enters the list, can a new Slow Warn or regular alarm sound, depending on the vessels SOG, or CPA and TCPA. The Slow Warn function operates in the same way if your vessel is at anchor and other vessels enter your alarm zone area. 79

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79
10
AIS RECEIVER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D
CPA/TCPA
In this menu, you can edit alarm settings for the AIS receiver.
• Alarm
You can turn the collision alarm function ON or OFF.
• Slow Warn
The GPS receiver calculated COG data of a vessel that is at
anchor or drifting is unreliable, and therefore the CPA and
TCPA data may not be calculated correctly. If a vessel is
anchored in your alarm zone, the unreliable data can cause
the collision alarm to sound many times, even if there is no
real danger. To
prevent this, when the anchored vessel’s
SOG is less than this set value, the Slow Warn function
assumes that vessel’s COG is fixed towards your vessel and
an alarm will sound.
z
Rotate [CH/ENT] or push [
Y
]/[
Z
] to set the value between
0.1 and 4.9 kt (in 0.1 kt steps), or select OFF. (default: 1.0 kt)
NOTE:
If other vessels at anchor or drifting come into your
alarm zone, the Slow Warn alarm will sound again. Only if
the previous vessel disappears from the Danger List
(p. 74), and then re-enters the list, can a new Slow Warn
or regular alarm sound, depending on the vessels SOG,
or CPA and TCPA. The Slow Warn function operates in
the same way if your vessel is at anchor and other vessels
enter your alarm zone area.