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Chapter 10
GTD-110/150
Technical Reference
10-2
93151542-00
GLL
Geographic position – latitude/longitude
Ver.1.5
/2.0
MSS
MSK receiver signal status
Ver.2.0
MTW Water
temperature
Ver.1.5
RMC
Recommended minimum specific GNSS data
Ver.2.0
$ _ _MSS, X.X, XX, XXX.X, XXX <CR> <LF>
Beacon bit rate (25, 50,100,200) bits/s
Signal-to-noise ratio (SNR), dB (0 - 30db
)
Beacon frequency, 283.5 - 325.0kHz
)
Start of sentence
Talker device
Sentence
name
Signal strength (SS), dB/1
μ
V/m
$ SD MTW, XX, C *hh <CR><LF>
Temperature, degree C
Checksum
Start of sentence
Talker device
Sentence
name
$ _ _ GLL, XXXX.XXX, N/S, XXXX.XXX, E/W, *hh <CR><LF>
Sentence
name
Start of sentence
Talker device
Latitude
Checksum
Longitude
Latitude
N/S
Longitude
E/W
$ -- RMC, hhmmss, A/V, XXXX.XXX, N/S, XXXXX.XX, E/W
XXX.X,
XXXXXX, XXXXXX, X.X,a,a*hh <CR><LF>
UTC of position fix
Latitude
Longitude
Longitude
E/W
Latitude
N/S
A:Data valid
V:Navigation receiver warning
Mode indicator)
Date: dd/mm/yy
Speed over ground, knots
Magnetic variation,
degrees, E/W
Start of sentence
Talker device
Sentence
name
Course over ground,
degrees true
Checksum