iXBlue GAPS - Page 198

GAPS - User Guide
PTSAG
Transponder Absolute Positioning Message (geographical coordinates and depth)
#NNNNN
hhmmss.ss
jj
mm
aaaa
BBB
DDMM.MMMMM
H
DDDMM.MMMMM
D
A
MMMM.MM
A
MMMM.MM
NNNNN.N
Recurrence frame Number
Time in hours, minutes, seconds ,milliseconds
Day (jj = 0 to 31)
Month (mm =1 to 12)
Year
Transponder No. or ship’s No
0: GAPSantenna 1 to 128: Transponder
-128 to –1: Unknown Transponder
Latitude degrees, minutes and 1/100000
Hemisphere (N: North, S: South)
Longitude degrees, minutes and 1/100000
Longitude direction (E: East, W: West)
Validity of the four reception channels
0 to F: binary coding of acoustic hydrophone validity
Calculated depth in meters
Depth validity (0: None 1: Calculated 2: Sensor)
Sensor depth in meters
Altitude of the transponder
PTSAX
Transponder relative Positioning Message relative to GAPS array - GAPS orientation
(Relative coordinates and depth).
#NNNNN
hhmmss.ss
jj
mm
aaaa
BBB
XXXXX.X
YYYYY.Y
A
PPPP.PP
A
CCCC.CC
NNNN.N
Recurrence frame Number
Time in hours, minutes, seconds ,milliseconds
Day jj = 0 to 31
Month mm =1 to 12
Year
Transponder 1 to 128, Unknown Transponder -128 to –1
X coordinate (+ forward) in meters
Y coordinate (+ starboard) in meters
Position validity (X, Y, Z): 0 to F: binary code of acoustic channel validity
Calculated depth in meters
Depth validity (0: None 1: Calculated 2: Sensor)
Sensor depth in meters
Altitude of the transponder
198 MU-GAPS-AN-005-H - November 2019