Specifications

-5.5-
VBW - Dual ground/water speed: This sentence to be expanded as shown below:
$--VBW, x.x, x.x, A, x.x, x.x, A, x.x, A, x.x, A *hh<CR><LF>
Status
2
, stern ground speed A = data valid
V = invalid
Stern transverse ground speed
1, 2
, knots
Status
2
, stern water speed, A = data valid
Stern transverse water speed
1, 2
, knots
Status, ground speed, A = data valid
Transverse ground speed
1
, knots
Longitudinal ground speed
1
, knots
Status, water speed, A = data valid
Transverse water speed
1
, knots
Longitudinal water speed
1
, knots
NOTES
1. Transverse speed: “-“ = port, Longitudinal speed: “-“astern.
For vessels equipped with dual water and/or ground speed systems ; data for the equipment
mounted towards the stern are reported in these fields.