Ryokosei RBY datagram format
Ryokosei RBY is a proprietary datagram format created by Ryokosei. It is provided with the buoys to provide the geographical location of the buoy as well as the water temperature the buoy measures. The datagram also provides echo sounder information.
Note
The datagram format described here remains the property of the organization that defined it. If you need more information about this format, contact the owner.
Format
$PRBY,xxx,hhmmss,llll.ll,a,yyyyy.yy,a,
yymmdd,tt.t,a0b0c0d0e0f0g0h0i0,BB.B<CR><LF>
Description
1 $PTalker identifier
2 RBYDatagram identifier
3 xxxThis is the number (identification) of the buoy.
4 hhmmssTime (Hours, minutes and seconds)
5 llll.lll,aLatitude (Degrees, minutes and hundredths)
•  N = North
•  S = South
6 yyyyy.yyy,aLongitude (Degrees, minutes and hundredths)
•  W = West
•  E = East
7 yymmddDate (Year, month and day)
8 tt.tWater temperature (degrees Celcius) (0 – 35.5 °C)
9 a0b0c0d0e0f0g0h0i0Echo sounder data
10 BB.BBattery voltage