User Manual
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(5) ATA indications
In the PPI and ALL PPI modes, symbols and data are displayed. In other modes, target tracking is still
continued though the ATA display and operation are disabled. The symbols are as follows:
Acquired
target
Tracked target Target with data
display
Lost target Dangerous target under
automatic tracking
(6) Ship's speed setting
The ship's speed can be set in the SPD SET item in the SET UP/CUSTOM/PRESET2 menu. Other than the
standard NMEA interface, manual setting and log pulse input can also be selected. In the case of manual
setting, input the ship's actual speed. Menu indication is as follows:
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SPD SET NMEA MANU 0.0 KT LOG 200P
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5.6.2.4 Interface
(1) Data output
The ATA data output is ready at the optional connector terminal on the rear of the display unit. Pin No.32 is
the NMEA_OUT signal terminal which outputs signals conforming to the NMEA0183. This output terminal
is used for the TARGET function (to output L/L of the cursor position), the MOB function (to output L/L of
the ship's position) and the ATA data output function.
The data format is as follows:
$RATTM,01,0.42,292.1,T,4.99,0.0,T,0.4,0.0,N,,T,,,M*2A
Description
$RA Unit identification code (radar)
TTM Formatter
01 Target number
0.42 Distance to the target
292.1 Bearing of the target (
°
)
T Indicates the true bearing.
4.99 Speed (knots)
0.0 Course (
°
)
T Indicates the true speed and course, while R indicates relative movement.
0.4 Indicates the CPA (closest point of approach)
0.0 Time required for the ship to reach the CPA (min.)
N Indicates the unit of distance used: NM
T Indicates tracking condition: Q: unstable, T: tracking, L: lost
M Indicates that acquisition is carried out manually.
*2A Sum checking
(2) Log signal input
The log signal can be used for ship speed input by inputting it to the optional connector terminal on the rear of
the display unit. Pin No.32 is the log signal terminal and it is driven between itself and pin No.14 (GND)
using contact signals such as a relay.
400, 200, 150 or 100 pulses/NM signal can be selected.