![JRC JMA-9172-SA Instruction Manual Download Page 127](http://html1.mh-extra.com/html/jrc/jma-9172-sa/jma-9172-sa_instruction-manual_2028385127.webp)
JMA-9172-SA Instruction Manual
>
3.BASIC OPERATION
>
3.4 GENERAL RADAR OPERATION
3
-
31
3
3.4.8
Display Radar Trails (Trails)
Other ship's movements and speeds can be monitored from the lengths and
directions of their trails, serving for collision avoidance. The trail length varies
according to setting.
3.4.8.1
Changing the length of the trail
Procedures
1)
Left-click the Radar trails display time button located at the
upper left of the display.
Values of the length of the radar trails are switched.
Trails length setting: Short mode
→
→
→
←
←
←
Saved trails cannot be erased even when the trail lengths are changed by using Trails button.
Even after the trails display is turned off, the past trails can be displayed traced back by
setting a desired time.
The radar system is start transmission, trails is start plot.
The system is plotting trails even while the trails display is off.
If the transmit time is short, the indicated trails duration may not have achieved the specified
time. The radar trails remaining time is indicated at the right of the trails length setting.
3.4.8.2
Erasing Trails Data
Procedures
1)
Hold down the Trails button for five seconds located at the
upper right of the display.
All the saved trails data will be erased. The system starts plotting trails in initial state.When
Trails button is clicked for 2 seconds, a RADAR Trails Setting menu will be displayed.
Furthermore, data will be erased if it continues pushing.
Short
:
15sec, 30sec, 1min, 3min, 6min, 10min and 15min
Middle
:
30sec, 1min, 3min, 6min, 10min, 15min and 30min
Long
:
1min, 3min, 6min, 10min, 15min, 30min and 60min
RADAR trails display time
Off
15sec
30sec
1min
15min
10min
6min
3min
Summary of Contents for JMA-9172-SA
Page 2: ......
Page 17: ...xv NDC 1478 Radar Process Unit Desktop Type Warning Label...
Page 18: ...xvi NQE 3141 4A 8A Interswitch Unit Warning Label...
Page 19: ...xvii...
Page 22: ...xx Radar Process Unit Type NDC 1478 Desktop type DISPLAY UNIT TYPE NCD 9170T DESKTOP TYPE...
Page 28: ...xxvi...
Page 38: ......
Page 40: ......
Page 42: ......
Page 60: ......
Page 96: ......
Page 226: ...3 130 JMA 9172 SA Instruction Manual 3 BASIC OPERATION 3 12 RECEIVE PORT SETTING...
Page 228: ......
Page 312: ......
Page 326: ...6 14 JMA 9172 SA Instruction Manual 6 TRUE AND FALSE ECHOES ON DISPLAY 6 5 DISPLAY OF AIS SART...
Page 372: ...7 44 JMA 9172 SA Instruction Manual 7 SETTINGS FOR SYSTEM OPERATION 7 4 MAINTENANCE MENU...
Page 400: ......
Page 414: ......
Page 418: ......
Page 428: ......
Page 468: ......
Page 485: ......