VHW - Water speed and heading

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 $--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF>

 Field Number: 
  1) Degress True
  2) T = True
  3) Degrees Magnetic
  4) M = Magnetic
  5) Knots (speed of vessel relative to the water)
  6) N = Knots
  7) Kilometers (speed of vessel relative to the water)
  8) K = Kilometers
  9) Checksum