Specifications

BATS AND PORTABLE BATS OPERATION
3-84
3.7.2.2 “POREB” DATA OUTPUT FORMAT
Applicable To: TP3 Model 4450A, TP3P Model 4430C, BATS Model 4460C & BATS-P Model
4461C
Message Name: POREB
Sample;
$POREB,TG,HHMMSSHH,QF,EC,-BRG-,-DA-,--SR--,-SS-,TP,-TELM-*CS
C
R
L
F
$POREB,01,07253784,10,50,075.2,39.1,1572.5,1510,18,0328.4*16
“$POREB” RS-232 PARAMETER DESCRIPTION
TARGET NUMBER: The TARGET NUMBER (#) represents the various target symbols and can
range from 0 to 10. The zero is output when in the self-test mode to indicate that the RS-232 data
is simulated.
TIME: The TIME value is related to the time of signal reception. It is synchronous with the 24-
hour time on the screen of the Trackman display. The accuracy of the time as output is within 1
second of the actual time of reply. (In future this will be interfaced to the GPS 1PPS and will be ac-
curate to within approximately 20ms.)
QUALITY FACTOR: The QUALITY FACTOR is a value (1-10) determined by the system on each
reply that is detected. The system uses the phase or time counts from each of the hydrophone el-
ements to determine the quality of the signal. If the phase counts are consistent on all three chan-
nels throughout the reply burst the quality factor is very high. If the phase counts have jitter or are
inconsistent then the quality factor is low.
ERROR CODE: The ERROR CODE or WARNING CODE is a one- or two- digit error code indicat-
ing that the data received could not be used for a valid position fix, or it can represent a warning to
let an operator know that the position accuracy could be compromised.
TARGET BEARING: The BEARING output in degrees is a relative bearing from the Hydrophone to
the target. The target bearing is corrected for the entered hydrophone offsets, when target is ref-
erenced to the pitch roll center of the vessel or if Antenna Offsets are entered, it is corrected again
to the Antenna offset point.
DEPRESSION ANGLE: The DEPRESSION ANGLE is the angle from the horizon to the point di-
rectly below the hydrophone. It is in degrees.