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2. RADAR, CHART RADAR OPERATION
2-48
2.31 Performance Monitor
The performance monitor, installed in the antenna unit, produces a visual indication
on the radar display screen when the radar transmitter power and the radar receiver
sensitivity and tuning are within the prescribed limits. A graph is also provided and it
shows degradation of TX/RX/Power over time.
How to activate, deactivate the performance monitor
To activate, deactivate the performance monitor, do the following.
Note: Activate, deactivate the performance monitor in TX (transmit) state.
1. Set the radar in TX (transmit) state.
2. Open the menu then select the [1 ECHO] menu.
3. Select [6 PERFORMANCE MON] (B type) or [5 PERFORMANCE MON] (IMO and
A types).
4. Select [ON] or [GRAPH ONLY] as appropriate.
[ON]: Activate the performance monitor. The performance monitor graph is dis-
played.
[GRAPH ONLY]: Display the performance monitor graph. (The performance mon-
itor is not executed.)
5. Select [0], [2], [3], [5] or [6] in [ARC] (see "How to set the number of arcs" on
page 2-49).
6. Close the menu after 30 seconds.
7. When selecting [ON] or [GRAPH ONLY], the performance monitor graph is dis-
played in the information box.
8. Open the menu then select the [1 ECHO] menu.
9. Select [6 PERFORMANCE MON] (B type) or [5 PERFORMANCE MON] (IMO and
A types).
10. Select [OFF] to deactivate the performance monitor.
11. Close the menu. The icon "PM" appears in the indication area (see
paragraph 1.6.1) when the performance monitor is active.
Note: If the blind sector and the direction of the PM antenna overlap one another, turn
off the blind sector in order to display echoes correctly.
A total of 10 dB loss
Value for degradation
of transmission/
reception/total power
Graph for transmission/
reception/total power
Click [X] to close the PM graph.
Total transmission
time
8
-10.2 d
B