Ryokusei RBY datagram format
Ryokusei RBY is a proprietary datagram format created by Ryokusei. It is supplied with buoys and provides 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, 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 Celsius) (0 – 35.5 °C)
9 a0b0c0d0e0f0g0h0i0Echo sounder data
10 BB.BBattery voltage