Seatex DPS 132 Installation Manual, rev. 0 Installation
33
GSV Message
The GSV message presents number of satellites (SV) in view, satellite ID numbers, elevation,
azimuth and SNR value. Four satellites maximum per transmission, additional satellite data
sent in second or third message. The message is as specified in NMEA 0183 versions 2.2, 2.3
and 3.0. The message structure is as follows:
$GPGSV,n,n,ss,xx,ee,aaa,nn,…….,xx,ee,aaa,nn*cc
Table 19 describes the GSV message fields.
Field Description
n Total number of messages (1-9).
n Message number (1-9).
ss Total numbers of satellites in view.
xx Satellite ID number, GPS: 1-32 (satellite number).
ee Elevation in degrees, 90º maximum.
aaa Azimuth in degrees, 000-359.
nn SNR 00-99 dB-Hz, 0 when not tracked.
….,xx,ee,aaa,nn Satellite ID, elevation, azimuth and SNR for up to four satellites.
*cc Checksum.
Table 19 GSV message fields
PSXN_23 Message
The PSXN_23 message is Seatex' proprietary message for integrated phase vector output. The
message structure is as follows:
$PSXN,23,hhmmss.ss,xxx.xx,yyy.yy,zzz.zz,f*cc
Table 20 describes the PSXN_23 message fields.
Field Description
hhmmss.ss UTC of position (hours, minutes and seconds).
xxx.xx Integrated phase measurements in x direction in meters, range 000.00 - 999.99
yyy.yy Integrated phase measurements in y direction in meters, range 000.00 - 999.99
zzz.zz Integrated phase measurements in z direction in meters, range 000.00 - 999.99
f Flag, warning flag: 0 = Normal, 1 = Phase questionable, 2 = Lock counter is reset.
*cc Checksum.
Table 20 PSXN_23 message fields
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