October 2017
RiverPro and RioPro ADCP Guide
Page 158
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Surface Layer Velocity Leader Format
BIT POSITIONS
BYTE
7/S
6
5
4
3
2
1
0
1
SURFACE LAYER LEADER ID
LSB 10h
2
MSB 00h
3
SURFACE LAYER CELL COUNT
LSB
4
SURFACE LAYER CELL SIZE
LSB
5
MSB
6
SURFACE LAYER CELL 1 DISTANCE
LSB
7
MSB
Figure 35.
Surface Layer Leader Format
Table 27:
Surface Layer Leader Format
Hex Digit
Binary Byte Field
Description
1-4
1,2
Surface Layer Leader
ID
Stores the surface layer velocity data identification word (10 00h).
5-6
3
Cell Count
Stores number of cells in the surface layer.
7-10
4,5
Cell Size
Stores surface layer cell size in centimeters.
11-14
6,7
Cell 1 distance
Stores distance to middle of first surface layer cell in centimeters.
Only present when there are surface layer bins to report.