Gnd Stab Spd (Ground Stabilized Input) - Koden MDC-1840BB Operation Manual

Chapter 6 MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Using The Menu
Table 6.1 Available NMEA sentences and talker devices
Sentence
VHW VD
VM
VW
VBW VD
6.4.1.4 GND STAB SPD (Ground Stabilized Speed)
This function is used to select the signal source of the ground speed and set/drift
inputs. The available selections include; MAN (Manual setting), PULSE (Pulse signal
supplied from a speed log) and the NMEA sentences.
Indication
GND STAB SPD
SET / DRIFT
Table 6.2 Combinations of GND STAB SPD and SET/DRIFT
GND STAB SPD
MAN
PULSE
VHW
VHW
VBW
VTG
NOTE for NMEA sentences, VHW, VBW, VTG and VDR:
When the VHW sentence is selected, the Doppler Log or a speed log (Magnetic or
Mechanical) can be selected according to the talker device name included in the
sentence.
When the VBW sentence is selected, only the Doppler LOG is selected.
When the VDR sentence is selected, only the Doppler LOG is selected.
When the VTG sentence is selected, the Doppler LOG or the GPS receiver is
selected.
6-16
Talker identifier On-screen display
DO LOG/WT-Speed Doppler LOG
LOG
LOG
DO LOG/BT-Speed
Meaning
Speed stabilized over ground
Set: The direction towards which
current flows.
Drift: The speed of a current
SET/DRIFT
MAN
MAN
MAN
VDR
Not need
Not need
Speed LOG, magnetic
Speed LOG, mechanical
Doppler LOG
Notes
Set/Drift data included in the sentence
only if VBW delivers GND based data
Course and speed measured over ground
Operation Manual
Device name
Selection
See the following table.
See the following table.
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