User manual

SeaSTAR 3100LRS USER MANUAL
Issue 1.0 08/02
25
position quality. HDOP<3.0 is most
reliable.
DGPS correction information The first
number shows Differential Correction
age in seconds as measured by the
GPS receiver; Stn is the station ID
(always set to 100).
Read from the $GPGGA sentence
List of satellite IDs shows the SVs
used in the DGPS position fix as
reported by the $GPGSA NMEA data
telegram.
Read from the $GPGSA sentence
Receiver operating mode AQC shows
either M for manual or A for Auto; POS
shows 1, 2 or 3 D, where 1 is invalid, 2
is fixed height and 3 is a full 3-D position
fix as reported by the $GPGSA NMEA
data telegram.
Read from the $GPGSA sentence
NMEA messages received flags for
GGA, GLL, GSA and VTG sentences.
Those not output will remain solid at 0.
Satellite Messages received flags for
the time, almanac and site reference
messages. These will all say “Y” for Yes
when each complete message has been
received.
Note : Display of correction age and station ID are not
an indicator that
the 3100LRS is outputting RTCM data. This display only shows data
returned by the GPS receiver. Some models of receiver will not echo this
information if not set in differential mode, despite receiving correction
data.
If the ⇒ key is pressed again the VBS Services menu option reappears.
Pressing the ⇓ key moves onto the next menu.
SVs: 000000000000
RECV →
A
QC : A POS : 3D
RECV →
RECV →
GA : YLL : NSA : NTG : N
RECV →
Tm :Y Alm :Y Ste : Y
A
ge : 99.0 Stn : 000
RECV →
FSPAS Ref.: B31005102PMBRA0