Chapter 9
CVS-833/833C
Technical References
DBT
Depth (From the transducer surface to the seabed)
Ver.1.5
DPT
Depth (From the transducer surface to the ocean down below)
Ver.2.0
MTW Water
temperature
Ver.1.5
VHW
Water speed and ship’s bearing
Ver.1.5
Sentence
name
Start of sentence
$ SD DBT, xxxx.x, f, xxxx.x, M, xxx.x, F *hh <CR><LF>
Checksum
Depth (meters)
Depth (feet)
Talker device code
Depth (fathom)
$ SD DPT, xxxx.x, xxxx.x, *hh <CR><LF>
Sentence
name
Checksum
Talker device code
Depth (feet)
Draft level (m)
Start of sentence
Sentence
name
$ SD MTW, xx, C *hh <CR><LF>
Start of sentence
Talker device code
Temperature
(℃)
Checksum
Sentence name
$ SD VHW, xxx.x, T, xxx.x, M, xxx.x, N, xxx.x, K *hh <CR><LF>
Talker device code
S
(True
ring)
hip’s bearing (
o
)
Bea
Ship’s bewaring (o)
(Magnetic Bearing)
Ship’s speed
(km/H))
Checksum
Ship’s speed (knt)
Start of sentence
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