Chapter 10 MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Technical Reference
Operation Manual
10-6
93142122-07
10.2 Tracking data output sentence detail
Sentence name: IEC61162-1
The ATA data can be output to an external unit via the data connector labeled “DATA
1,2 & 3” on the display rear panel.
TTM
Tracked Target Message
$ RA TTM, x, x.x, xxx, T, xx.x, xxx.x, T, x.x, x.x, N, xxxx, a, , , M, *hh <CR><LF>
Sentence
format
Talker
device
Target distance from
own ship
Target number (0 to 9)
Target speed
Distance of Closest Point
of Approach
Target course
(true)
Checksum
Target status (See Note)
Speed/distance units (nm)
Start of sentence
Bearing from
own ship
Time to CPA
(min)
User
data
Type of acquisition
These fields are not used
Note for Target status:
L: Lost, tracked target has been lost
Q: Quary, target in process of acquisition
T: Tracking, target in process of tracking
