Smiths Kelvin Hughes Nucleus 3 5000 Series, System Handbook

Page: 82 / 510

(5)
If anchor watch limits
are in operation (anchor symbol over target) and
the selected target moves more than the Anchor
Watch limit, an anchor symbol is generated over
the target.
(6)
O c c u r s wh e n
computer is tracking to maximum capacity and an
additional target is acquired.
(7)
Targets automatically
acquired by the guard rings, show an inverted
triangle symbol.
(8)
If the computer fails
after initialisation.
Alarm De-selection /Op er a tor Ac tion
64 Unacknowledged alarms cause a flashing red outlined
box to be displayed in the alarm box. To acknowledge
the alarms, position the cursor in this highlighted box and
press any pushbutton. The box disappears when all alarms
are acknowledged.
65
An exception to this is the ‘Collision Warning’ alarm,
the Red box is not removed until the target is no longer
a danger. The following action is permitted:
(1)
Collision - The target vector and square symbol
continue flashing until the parameter violation
ceases. Any other target can be selected whilst a
collision alarm exists. Target data for the selected
target is displayed for 10 seconds; the display then
reverts to the collision target data.
(2)
Lost Target - The resetting of the alarm
automatically removes the Lost Target symbol
from the display.
(3) Anchor Watch - Alarm cancelled by reset action;
the anchor symbol may be removed by reselecting
the target.
(4) Tracking Overload - Alarm cancelled by reset
action; one or more selected targets have to be
deleted to allow for selection of new target.
(5) New Target - Reset by acknowledgment of the
alarm.
(6)
ARPA fault - Return to Standby and reselect [GO
TO RUN] .
SIM U LA TION MODE
66 A simulation facility is provided for both a training and a
test purpose. Three simulation modes are available
and run for about 60 minutes. The following facilities are
disabled while in Simulation Mode:
Changing the Heading
Changing the Speed Input
Changing the Stabilisation
Changing the Drift.
(1) Select the 24 mile range.
Sce nario 1 - Four Tar get Sim u la tion
67 Based on a known situation this scenario shows the
targets moving within a 15 mile radius of the radar
origin, refer to Figure 2 - Standard Simulation Mode - Known
Scenario.
Se lec tion
68
Select [SIM] from the standby menu then press the
left-hand pushbutton.
Sce nario 2 - Two Rings of Twenty-Five Sim u la tion
69 This scenario is used for the testing of Sectors and
Guard Zones and consists of 2 rings of 25 targets. The
first ring at 6.0nm and the second ring at 10.0nm.
70 The targets circle Ownship’s position at the starting
point at an ever expanding radius. Ownship’s course
(CRSE) 000 degrees, Log Speed 10 knots (KT).
Se lec tion
71
Select [SIM] from the standby menu then press the
centre pushbutton.
Sce nario 3 - Fifty Tar get Sim u la tion
72 This scenario can be used for the testing of Polyzones.
It consists of a grid of targets all of which are travelling
away from Ownship. Refer to Annex A for a detailed
description of targets course (CRSE), bearing (BRG), speed
and initial range.
Se lec tion
73 Select [SIM] from the standby menu then press the
right-hand pushbutton.
Ter mi nating the Sim u la tion
74
To terminate the simulation facility, select the
[STANDBY] function highlighting the TX box, then
press the centre pushbutton.
KH 2020
Chap 2b
Amdt 5 2b.9 July 03
Anchor Watch
Tracking Overload
New Target
ARPA Failure